aboutsummaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 17:37:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 17:37:43 -0700
commit5f56886521d6ddd3648777fae44d82382dd8c87f (patch)
treeaa0db6331cdb01c23f1884439840aadd31bbcca4 /fs
parentf1e9a236e5ddab6c349611ee86f54291916f226c (diff)
parente2a8b0a779787314eca1061308a8182e6c5bfabd (diff)
downloadlinux-5f56886521d6ddd3648777fae44d82382dd8c87f.tar.gz
Merge branch 'akpm' (incoming from Andrew)HEADmaster
Merge third batch of fixes from Andrew Morton: "Most of the rest. I still have two large patchsets against AIO and IPC, but they're a bit stuck behind other trees and I'm about to vanish for six days. - random fixlets - inotify - more of the MM queue - show_stack() cleanups - DMI update - kthread/workqueue things - compat cleanups - epoll udpates - binfmt updates - nilfs2 - hfs - hfsplus - ptrace - kmod - coredump - kexec - rbtree - pids - pidns - pps - semaphore tweaks - some w1 patches - relay updates - core Kconfig changes - sysrq tweaks" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits) Documentation/sysrq: fix inconstistent help message of sysrq key ethernet/emac/sysrq: fix inconstistent help message of sysrq key sparc/sysrq: fix inconstistent help message of sysrq key powerpc/xmon/sysrq: fix inconstistent help message of sysrq key ARM/etm/sysrq: fix inconstistent help message of sysrq key power/sysrq: fix inconstistent help message of sysrq key kgdb/sysrq: fix inconstistent help message of sysrq key lib/decompress.c: fix initconst notifier-error-inject: fix module names in Kconfig kernel/sys.c: make prctl(PR_SET_MM) generally available UAPI: remove empty Kbuild files menuconfig: print more info for symbol without prompts init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display kconfig menu: move Virtualization drivers near other virtualization options Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS relay: use macro PAGE_ALIGN instead of FIX_SIZE kernel/relay.c: move FIX_SIZE macro into relay.c kernel/relay.c: remove unused function argument actor drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave() drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave() ...
Diffstat (limited to 'fs')
-rw-r--r--fs/Kconfig.binfmt14
-rw-r--r--fs/Makefile5
-rw-r--r--fs/binfmt_aout.c1
-rw-r--r--fs/binfmt_elf.c6
-rw-r--r--fs/binfmt_elf_fdpic.c2
-rw-r--r--fs/binfmt_misc.c24
-rw-r--r--fs/block_dev.c8
-rw-r--r--fs/coredump.c84
-rw-r--r--fs/dcache.c4
-rw-r--r--fs/eventpoll.c128
-rw-r--r--fs/exec.c13
-rw-r--r--fs/fs-writeback.c1
-rw-r--r--fs/hfs/bfind.c10
-rw-r--r--fs/hfs/bitmap.c4
-rw-r--r--fs/hfs/bnode.c39
-rw-r--r--fs/hfs/brec.c19
-rw-r--r--fs/hfs/btree.c31
-rw-r--r--fs/hfs/catalog.c24
-rw-r--r--fs/hfs/dir.c20
-rw-r--r--fs/hfs/extent.c68
-rw-r--r--fs/hfs/hfs_fs.h22
-rw-r--r--fs/hfs/inode.c15
-rw-r--r--fs/hfs/mdb.c23
-rw-r--r--fs/hfs/super.c47
-rw-r--r--fs/hfsplus/attributes.c26
-rw-r--r--fs/hfsplus/bfind.c14
-rw-r--r--fs/hfsplus/bitmap.c13
-rw-r--r--fs/hfsplus/bnode.c36
-rw-r--r--fs/hfsplus/brec.c14
-rw-r--r--fs/hfsplus/btree.c29
-rw-r--r--fs/hfsplus/catalog.c11
-rw-r--r--fs/hfsplus/dir.c14
-rw-r--r--fs/hfsplus/extents.c53
-rw-r--r--fs/hfsplus/hfsplus_fs.h20
-rw-r--r--fs/hfsplus/inode.c4
-rw-r--r--fs/hfsplus/options.c22
-rw-r--r--fs/hfsplus/super.c56
-rw-r--r--fs/hfsplus/wrapper.c8
-rw-r--r--fs/hfsplus/xattr.c41
-rw-r--r--fs/nilfs2/inode.c17
-rw-r--r--fs/nilfs2/mdt.c19
-rw-r--r--fs/nilfs2/page.c70
-rw-r--r--fs/nilfs2/page.h3
-rw-r--r--fs/notify/inotify/inotify_user.c6
-rw-r--r--fs/proc/base.c5
45 files changed, 652 insertions, 441 deletions
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 0efd1524b97..370b24cee4d 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -65,6 +65,20 @@ config CORE_DUMP_DEFAULT_ELF_HEADERS
This config option changes the default setting of coredump_filter
seen at boot time. If unsure, say Y.
+config BINFMT_SCRIPT
+ tristate "Kernel support for scripts starting with #!"
+ default y
+ help
+ Say Y here if you want to execute interpreted scripts starting with
+ #! followed by the path to an interpreter.
+
+ You can build this support as a module; however, until that module
+ gets loaded, you cannot run scripts. Thus, if you want to load this
+ module from an initramfs, the portion of the initramfs before loading
+ this module must consist of compiled binaries only.
+
+ Most systems will not boot if you say M or N here. If unsure, say Y.
+
config BINFMT_FLAT
bool "Kernel support for flat binaries"
depends on !MMU && (!FRV || BROKEN)
diff --git a/fs/Makefile b/fs/Makefile
index 3b2c76759ec..5e67e57b59d 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -34,10 +34,7 @@ obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
obj-$(CONFIG_BINFMT_EM86) += binfmt_em86.o
obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
-
-# binfmt_script is always there
-obj-y += binfmt_script.o
-
+obj-$(CONFIG_BINFMT_SCRIPT) += binfmt_script.o
obj-$(CONFIG_BINFMT_ELF) += binfmt_elf.o
obj-$(CONFIG_COMPAT_BINFMT_ELF) += compat_binfmt_elf.o
obj-$(CONFIG_BINFMT_ELF_FDPIC) += binfmt_elf_fdpic.o
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index bbc8f8827ea..02fe378fc50 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -62,7 +62,6 @@ static int aout_core_dump(struct coredump_params *cprm)
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
- current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
dump.u_ar0 = offsetof(struct user, regs);
dump.signal = cprm->siginfo->si_signo;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 86af964c242..34a9771eaa6 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -803,7 +803,8 @@ static int load_elf_binary(struct linux_binprm *bprm)
* follow the loader, and is not movable. */
#ifdef CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE
/* Memory randomization might have been switched off
- * in runtime via sysctl.
+ * in runtime via sysctl or explicit setting of
+ * personality flags.
* If that is the case, retain the original non-zero
* load_bias value in order to establish proper
* non-randomized mappings.
@@ -2091,8 +2092,7 @@ static int elf_core_dump(struct coredump_params *cprm)
goto cleanup;
has_dumped = 1;
- current->flags |= PF_DUMPCORE;
-
+
fs = get_fs();
set_fs(KERNEL_DS);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 9c13e023e2b..c1cc06aed60 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1687,8 +1687,6 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
fill_elf_fdpic_header(elf, e_phnum);
has_dumped = 1;
- current->flags |= PF_DUMPCORE;
-
/*
* Set up the notes in similar form to SVR4 core dumps made
* with info from their /proc.
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 751df5e4f61..1c740e152f3 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -23,6 +23,7 @@
#include <linux/binfmts.h>
#include <linux/slab.h>
#include <linux/ctype.h>
+#include <linux/string_helpers.h>
#include <linux/file.h>
#include <linux/pagemap.h>
#include <linux/namei.h>
@@ -234,24 +235,6 @@ static char *scanarg(char *s, char del)
return s;
}
-static int unquote(char *from)
-{
- char c = 0, *s = from, *p = from;
-
- while ((c = *s++) != '\0') {
- if (c == '\\' && *s == 'x') {
- s++;
- c = toupper(*s++);
- *p = (c - (isdigit(c) ? '0' : 'A' - 10)) << 4;
- c = toupper(*s++);
- *p++ |= c - (isdigit(c) ? '0' : 'A' - 10);
- continue;
- }
- *p++ = c;
- }
- return p - from;
-}
-
static char * check_special_flags (char * sfs, Node * e)
{
char * p = sfs;
@@ -354,8 +337,9 @@ static Node *create_entry(const char __user *buffer, size_t count)
p[-1] = '\0';
if (!e->mask[0])
e->mask = NULL;
- e->size = unquote(e->magic);
- if (e->mask && unquote(e->mask) != e->size)
+ e->size = string_unescape_inplace(e->magic, UNESCAPE_HEX);
+ if (e->mask &&
+ string_unescape_inplace(e->mask, UNESCAPE_HEX) != e->size)
goto Einval;
if (e->size + e->offset > BINPRM_BUF_SIZE)
goto Einval;
diff --git a/fs/block_dev.c b/fs/block_dev.c
index aae187a7f94..ce08de7467a 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -617,11 +617,9 @@ void bd_forget(struct inode *inode)
struct block_device *bdev = NULL;
spin_lock(&bdev_lock);
- if (inode->i_bdev) {
- if (!sb_is_blkdev_sb(inode->i_sb))
- bdev = inode->i_bdev;
- __bd_forget(inode);
- }
+ if (!sb_is_blkdev_sb(inode->i_sb))
+ bdev = inode->i_bdev;
+ __bd_forget(inode);
spin_unlock(&bdev_lock);
if (bdev)
diff --git a/fs/coredump.c b/fs/coredump.c
index c6479658d48..ec306cc9a28 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -263,7 +263,6 @@ static int zap_process(struct task_struct *start, int exit_code)
struct task_struct *t;
int nr = 0;
- start->signal->flags = SIGNAL_GROUP_EXIT;
start->signal->group_exit_code = exit_code;
start->signal->group_stop_count = 0;
@@ -280,8 +279,8 @@ static int zap_process(struct task_struct *start, int exit_code)
return nr;
}
-static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
- struct core_state *core_state, int exit_code)
+static int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
+ struct core_state *core_state, int exit_code)
{
struct task_struct *g, *p;
unsigned long flags;
@@ -291,11 +290,16 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
if (!signal_group_exit(tsk->signal)) {
mm->core_state = core_state;
nr = zap_process(tsk, exit_code);
+ tsk->signal->group_exit_task = tsk;
+ /* ignore all signals except SIGKILL, see prepare_signal() */
+ tsk->signal->flags = SIGNAL_GROUP_COREDUMP;
+ clear_tsk_thread_flag(tsk, TIF_SIGPENDING);
}
spin_unlock_irq(&tsk->sighand->siglock);
if (unlikely(nr < 0))
return nr;
+ tsk->flags = PF_DUMPCORE;
if (atomic_read(&mm->mm_users) == nr + 1)
goto done;
/*
@@ -340,6 +344,7 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
if (unlikely(p->mm == mm)) {
lock_task_sighand(p, &flags);
nr += zap_process(p, exit_code);
+ p->signal->flags = SIGNAL_GROUP_EXIT;
unlock_task_sighand(p, &flags);
}
break;
@@ -386,11 +391,18 @@ static int coredump_wait(int exit_code, struct core_state *core_state)
return core_waiters;
}
-static void coredump_finish(struct mm_struct *mm)
+static void coredump_finish(struct mm_struct *mm, bool core_dumped)
{
struct core_thread *curr, *next;
struct task_struct *task;
+ spin_lock_irq(&current->sighand->siglock);
+ if (core_dumped && !__fatal_signal_pending(current))
+ current->signal->group_exit_code |= 0x80;
+ current->signal->group_exit_task = NULL;
+ current->signal->flags = SIGNAL_GROUP_EXIT;
+ spin_unlock_irq(&current->sighand->siglock);
+
next = mm->core_state->dumper.next;
while ((curr = next) != NULL) {
next = curr->next;
@@ -407,6 +419,17 @@ static void coredump_finish(struct mm_struct *mm)
mm->core_state = NULL;
}
+static bool dump_interrupted(void)
+{
+ /*
+ * SIGKILL or freezing() interrupt the coredumping. Perhaps we
+ * can do try_to_freeze() and check __fatal_signal_pending(),
+ * but then we need to teach dump_write() to restart and clear
+ * TIF_SIGPENDING.
+ */
+ return signal_pending(current);
+}
+
static void wait_for_dump_helpers(struct file *file)
{
struct pipe_inode_info *pipe;
@@ -416,17 +439,20 @@ static void wait_for_dump_helpers(struct file *file)
pipe_lock(pipe);
pipe->readers++;
pipe->writers--;
+ wake_up_interruptible_sync(&pipe->wait);
+ kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
+ pipe_unlock(pipe);
- while ((pipe->readers > 1) && (!signal_pending(current))) {
- wake_up_interruptible_sync(&pipe->wait);
- kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
- pipe_wait(pipe);
- }
+ /*
+ * We actually want wait_event_freezable() but then we need
+ * to clear TIF_SIGPENDING and improve dump_interrupted().
+ */
+ wait_event_interruptible(pipe->wait, pipe->readers == 1);
+ pipe_lock(pipe);
pipe->readers--;
pipe->writers++;
pipe_unlock(pipe);
-
}
/*
@@ -471,6 +497,7 @@ void do_coredump(siginfo_t *siginfo)
int ispipe;
struct files_struct *displaced;
bool need_nonrelative = false;
+ bool core_dumped = false;
static atomic_t core_dump_count = ATOMIC_INIT(0);
struct coredump_params cprm = {
.siginfo = siginfo,
@@ -514,17 +541,12 @@ void do_coredump(siginfo_t *siginfo)
old_cred = override_creds(cred);
- /*
- * Clear any false indication of pending signals that might
- * be seen by the filesystem code called to write the core file.
- */
- clear_thread_flag(TIF_SIGPENDING);
-
ispipe = format_corename(&cn, &cprm);
- if (ispipe) {
+ if (ispipe) {
int dump_count;
char **helper_argv;
+ struct subprocess_info *sub_info;
if (ispipe < 0) {
printk(KERN_WARNING "format_corename failed\n");
@@ -571,15 +593,20 @@ void do_coredump(siginfo_t *siginfo)
goto fail_dropcount;
}
- retval = call_usermodehelper_fns(helper_argv[0], helper_argv,
- NULL, UMH_WAIT_EXEC, umh_pipe_setup,
- NULL, &cprm);
+ retval = -ENOMEM;
+ sub_info = call_usermodehelper_setup(helper_argv[0],
+ helper_argv, NULL, GFP_KERNEL,
+ umh_pipe_setup, NULL, &cprm);
+ if (sub_info)
+ retval = call_usermodehelper_exec(sub_info,
+ UMH_WAIT_EXEC);
+
argv_free(helper_argv);
if (retval) {
- printk(KERN_INFO "Core dump to %s pipe failed\n",
+ printk(KERN_INFO "Core dump to %s pipe failed\n",
cn.corename);
goto close_fail;
- }
+ }
} else {
struct inode *inode;
@@ -629,9 +656,7 @@ void do_coredump(siginfo_t *siginfo)
goto close_fail;
if (displaced)
put_files_struct(displaced);
- retval = binfmt->core_dump(&cprm);
- if (retval)
- current->signal->group_exit_code |= 0x80;
+ core_dumped = !dump_interrupted() && binfmt->core_dump(&cprm);
if (ispipe && core_pipe_limit)
wait_for_dump_helpers(cprm.file);
@@ -644,7 +669,7 @@ fail_dropcount:
fail_unlock:
kfree(cn.corename);
fail_corename:
- coredump_finish(mm);
+ coredump_finish(mm, core_dumped);
revert_creds(old_cred);
fail_creds:
put_cred(cred);
@@ -659,7 +684,9 @@ fail:
*/
int dump_write(struct file *file, const void *addr, int nr)
{
- return access_ok(VERIFY_READ, addr, nr) && file->f_op->write(file, addr, nr, &file->f_pos) == nr;
+ return !dump_interrupted() &&
+ access_ok(VERIFY_READ, addr, nr) &&
+ file->f_op->write(file, addr, nr, &file->f_pos) == nr;
}
EXPORT_SYMBOL(dump_write);
@@ -668,7 +695,8 @@ int dump_seek(struct file *file, loff_t off)
int ret = 1;
if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
- if (file->f_op->llseek(file, off, SEEK_CUR) < 0)
+ if (dump_interrupted() ||
+ file->f_op->llseek(file, off, SEEK_CUR) < 0)
return 0;
} else {
char *buf = (char *)get_zeroed_page(GFP_KERNEL);
diff --git a/fs/dcache.c b/fs/dcache.c
index e8bc3420d63..e689268046c 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1230,8 +1230,10 @@ void shrink_dcache_parent(struct dentry * parent)
LIST_HEAD(dispose);
int found;
- while ((found = select_parent(parent, &dispose)) != 0)
+ while ((found = select_parent(parent, &dispose)) != 0) {
shrink_dentry_list(&dispose);
+ cond_resched();
+ }
}
EXPORT_SYMBOL(shrink_dcache_parent);
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 9fec1836057..277cc38aeda 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -104,7 +104,7 @@
struct epoll_filefd {
struct file *file;
int fd;
-};
+} __packed;
/*
* Structure used to track possible nested calls, for too deep recursions
@@ -128,6 +128,8 @@ struct nested_calls {
/*
* Each file descriptor added to the eventpoll interface will
* have an entry of this type linked to the "rbr" RB tree.
+ * Avoid increasing the size of this struct, there can be many thousands
+ * of these on a server and we do not want this to take another cache line.
*/
struct epitem {
/* RB tree node used to link this structure to the eventpoll RB tree */
@@ -158,7 +160,7 @@ struct epitem {
struct list_head fllink;
/* wakeup_source used when EPOLLWAKEUP is set */
- struct wakeup_source *ws;
+ struct wakeup_source __rcu *ws;
/* The structure that describe the interested events and the source fd */
struct epoll_event event;
@@ -536,6 +538,38 @@ static void ep_unregister_pollwait(struct eventpoll *ep, struct epitem *epi)
}
}
+/* call only when ep->mtx is held */
+static inline struct wakeup_source *ep_wakeup_source(struct epitem *epi)
+{
+ return rcu_dereference_check(epi->ws, lockdep_is_held(&epi->ep->mtx));
+}
+
+/* call only when ep->mtx is held */
+static inline void ep_pm_stay_awake(struct epitem *epi)
+{
+ struct wakeup_source *ws = ep_wakeup_source(epi);
+
+ if (ws)
+ __pm_stay_awake(ws);
+}
+
+static inline bool ep_has_wakeup_source(struct epitem *epi)
+{
+ return rcu_access_pointer(epi->ws) ? true : false;
+}
+
+/* call when ep->mtx cannot be held (ep_poll_callback) */
+static inline void ep_pm_stay_awake_rcu(struct epitem *epi)
+{
+ struct wakeup_source *ws;
+
+ rcu_read_lock();
+ ws = rcu_dereference(epi->ws);
+ if (ws)
+ __pm_stay_awake(ws);
+ rcu_read_unlock();
+}
+
/**
* ep_scan_ready_list - Scans the ready list in a way that makes possible for
* the scan code, to call f_op->poll(). Also allows for
@@ -599,7 +633,7 @@ static int ep_scan_ready_list(struct eventpoll *ep,
*/
if (!ep_is_linked(&epi->rdllink)) {
list_add_tail(&epi->rdllink, &ep->rdllist);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake(epi);
}
}
/*
@@ -668,7 +702,7 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
list_del_init(&epi->rdllink);
spin_unlock_irqrestore(&ep->lock, flags);
- wakeup_source_unregister(epi->ws);
+ wakeup_source_unregister(ep_wakeup_source(epi));
/* At this point it is safe to free the eventpoll item */
kmem_cache_free(epi_cache, epi);
@@ -711,11 +745,15 @@ static void ep_free(struct eventpoll *ep)
* point we are sure no poll callbacks will be lingering around, and also by
* holding "epmutex" we can be sure that no file cleanup code will hit
* us during this operation. So we can avoid the lock on "ep->lock".
+ * We do not need to lock ep->mtx, either, we only do it to prevent
+ * a lockdep warning.
*/
+ mutex_lock(&ep->mtx);
while ((rbp = rb_first(&ep->rbr)) != NULL) {
epi = rb_entry(rbp, struct epitem, rbn);
ep_remove(ep, epi);
}
+ mutex_unlock(&ep->mtx);
mutex_unlock(&epmutex);
mutex_destroy(&ep->mtx);
@@ -734,6 +772,13 @@ static int ep_eventpoll_release(struct inode *inode, struct file *file)
return 0;
}
+static inline unsigned int ep_item_poll(struct epitem *epi, poll_table *pt)
+{
+ pt->_key = epi->event.events;
+
+ return epi->ffd.file->f_op->poll(epi->ffd.file, pt) & epi->event.events;
+}
+
static int ep_read_events_proc(struct eventpoll *ep, struct list_head *head,
void *priv)
{
@@ -741,10 +786,9 @@ static int ep_read_events_proc(struct eventpoll *ep, struct list_head *head,
poll_table pt;
init_poll_funcptr(&pt, NULL);
+
list_for_each_entry_safe(epi, tmp, head, rdllink) {
- pt._key = epi->event.events;
- if (epi->ffd.file->f_op->poll(epi->ffd.file, &pt) &
- epi->event.events)
+ if (ep_item_poll(epi, &pt))
return POLLIN | POLLRDNORM;
else {
/*
@@ -752,7 +796,7 @@ static int ep_read_events_proc(struct eventpoll *ep, struct list_head *head,
* callback, but it's not actually ready, as far as
* caller requested events goes. We can remove it here.
*/
- __pm_relax(epi->ws);
+ __pm_relax(ep_wakeup_source(epi));
list_del_init(&epi->rdllink);
}
}
@@ -984,7 +1028,7 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k
/* If this file is already in the ready list we exit soon */
if (!ep_is_linked(&epi->rdllink)) {
list_add_tail(&epi->rdllink, &ep->rdllist);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake_rcu(epi);
}
/*
@@ -1146,6 +1190,7 @@ static int reverse_path_check(void)
static int ep_create_wakeup_source(struct epitem *epi)
{
const char *name;
+ struct wakeup_source *ws;
if (!epi->ep->ws) {
epi->ep->ws = wakeup_source_register("eventpoll");
@@ -1154,17 +1199,29 @@ static int ep_create_wakeup_source(struct epitem *epi)
}
name = epi->ffd.file->f_path.dentry->d_name.name;
- epi->ws = wakeup_source_register(name);
- if (!epi->ws)
+ ws = wakeup_source_register(name);
+
+ if (!ws)
return -ENOMEM;
+ rcu_assign_pointer(epi->ws, ws);
return 0;
}
-static void ep_destroy_wakeup_source(struct epitem *epi)
+/* rare code path, only used when EPOLL_CTL_MOD removes a wakeup source */
+static noinline void ep_destroy_wakeup_source(struct epitem *epi)
{
- wakeup_source_unregister(epi->ws);
- epi->ws = NULL;
+ struct wakeup_source *ws = ep_wakeup_source(epi);
+
+ RCU_INIT_POINTER(epi->ws, NULL);
+
+ /*
+ * wait for ep_pm_stay_awake_rcu to finish, synchronize_rcu is
+ * used internally by wakeup_source_remove, too (called by
+ * wakeup_source_unregister), so we cannot use call_rcu
+ */
+ synchronize_rcu();
+ wakeup_source_unregister(ws);
}
/*
@@ -1199,13 +1256,12 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
if (error)
goto error_create_wakeup_source;
} else {
- epi->ws = NULL;
+ RCU_INIT_POINTER(epi->ws, NULL);
}
/* Initialize the poll table using the queue callback */
epq.epi = epi;
init_poll_funcptr(&epq.pt, ep_ptable_queue_proc);
- epq.pt._key = event->events;
/*
* Attach the item to the poll hooks and get current event bits.
@@ -1214,7 +1270,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
* this operation completes, the poll callback can start hitting
* the new item.
*/
- revents = tfile->f_op->poll(tfile, &epq.pt);
+ revents = ep_item_poll(epi, &epq.pt);
/*
* We have to check if something went wrong during the poll wait queue
@@ -1247,7 +1303,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
/* If the file is already "ready" we drop it inside the ready list */
if ((revents & event->events) && !ep_is_linked(&epi->rdllink)) {
list_add_tail(&epi->rdllink, &ep->rdllist);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake(epi);
/* Notify waiting tasks that events are available */
if (waitqueue_active(&ep->wq))
@@ -1288,7 +1344,7 @@ error_unregister:
list_del_init(&epi->rdllink);
spin_unlock_irqrestore(&ep->lock, flags);
- wakeup_source_unregister(epi->ws);
+ wakeup_source_unregister(ep_wakeup_source(epi));
error_create_wakeup_source:
kmem_cache_free(epi_cache, epi);
@@ -1314,12 +1370,11 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
* f_op->poll() call and the new event set registering.
*/
epi->event.events = event->events; /* need barrier below */
- pt._key = event->events;
epi->event.data = event->data; /* protected by mtx */
if (epi->event.events & EPOLLWAKEUP) {
- if (!epi->ws)
+ if (!ep_has_wakeup_source(epi))
ep_create_wakeup_source(epi);
- } else if (epi->ws) {
+ } else if (ep_has_wakeup_source(epi)) {
ep_destroy_wakeup_source(epi);
}
@@ -1347,7 +1402,7 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
* Get current event bits. We can safely use the file* here because
* its usage count has been increased by the caller of this function.
*/
- revents = epi->ffd.file->f_op->poll(epi->ffd.file, &pt);
+ revents = ep_item_poll(epi, &pt);
/*
* If the item is "hot" and it is not registered inside the ready
@@ -1357,7 +1412,7 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
spin_lock_irq(&ep->lock);
if (!ep_is_linked(&epi->rdllink)) {
list_add_tail(&epi->rdllink, &ep->rdllist);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake(epi);
/* Notify waiting tasks that events are available */
if (waitqueue_active(&ep->wq))
@@ -1383,6 +1438,7 @@ static int ep_send_events_proc(struct eventpoll *ep, struct list_head *head,
unsigned int revents;
struct epitem *epi;
struct epoll_event __user *uevent;
+ struct wakeup_source *ws;
poll_table pt;
init_poll_funcptr(&pt, NULL);
@@ -1405,14 +1461,16 @@ static int ep_send_events_proc(struct eventpoll *ep, struct list_head *head,
* instead, but then epi->ws would temporarily be out of sync
* with ep_is_linked().
*/
- if (epi->ws && epi->ws->active)
- __pm_stay_awake(ep->ws);
- __pm_relax(epi->ws);
+ ws = ep_wakeup_source(epi);
+ if (ws) {
+ if (ws->active)
+ __pm_stay_awake(ep->ws);
+ __pm_relax(ws);
+ }
+
list_del_init(&epi->rdllink);
- pt._key = epi->event.events;
- revents = epi->ffd.file->f_op->poll(epi->ffd.file, &pt) &
- epi->event.events;
+ revents = ep_item_poll(epi, &pt);
/*
* If the event mask intersect the caller-requested one,
@@ -1424,7 +1482,7 @@ static int ep_send_events_proc(struct eventpoll *ep, struct list_head *head,
if (__put_user(revents, &uevent->events) ||
__put_user(epi->event.data, &uevent->data)) {
list_add(&epi->rdllink, head);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake(epi);
return eventcnt ? eventcnt : -EFAULT;
}
eventcnt++;
@@ -1444,7 +1502,7 @@ static int ep_send_events_proc(struct eventpoll *ep, struct list_head *head,
* poll callback will queue them in ep->ovflist.
*/
list_add_tail(&epi->rdllink, &ep->rdllist);
- __pm_stay_awake(epi->ws);
+ ep_pm_stay_awake(epi);
}
}
}
@@ -1964,6 +2022,12 @@ static int __init eventpoll_init(void)
/* Initialize the structure used to perform file's f_op->poll() calls */
ep_nested_calls_init(&poll_readywalk_ncalls);
+ /*
+ * We can have many thousands of epitems, so prevent this from
+ * using an extra cache line on 64-bit (and smaller) CPUs
+ */
+ BUILD_BUG_ON(sizeof(void *) <= 8 && sizeof(struct epitem) > 128);
+
/* Allocates slab cache used to allocate "struct epitem" items */
epi_cache = kmem_cache_create("eventpoll_epi", sizeof(struct epitem),
0, SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
diff --git a/fs/exec.c b/fs/exec.c
index 87e731f020f..963f510a25a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -898,11 +898,13 @@ static int de_thread(struct task_struct *tsk)
sig->notify_count = -1; /* for exit_notify() */
for (;;) {
+ threadgroup_change_begin(tsk);
write_lock_irq(&tasklist_lock);
if (likely(leader->exit_state))
break;
__set_current_state(TASK_KILLABLE);
write_unlock_irq(&tasklist_lock);
+ threadgroup_change_end(tsk);
schedule();
if (unlikely(__fatal_signal_pending(tsk)))
goto killed;
@@ -960,6 +962,7 @@ static int de_thread(struct task_struct *tsk)
if (unlikely(leader->ptrace))
__wake_up_parent(leader, leader->parent);
write_unlock_irq(&tasklist_lock);
+ threadgroup_change_end(tsk);
release_task(leader);
}
@@ -1027,17 +1030,7 @@ EXPORT_SYMBOL_GPL(get_task_comm);
void set_task_comm(struct task_struct *tsk, char *buf)
{
task_lock(tsk);
-
trace_task_rename(tsk, buf);
-
- /*
- * Threads may access current->comm without holding
- * the task lock, so write the string carefully.
- * Readers without a lock may see incomplete new
- * names but are safe from non-terminating string reads.
- */
- memset(tsk->comm, 0, TASK_COMM_LEN);
- wmb();
strlcpy(tsk->comm, buf, sizeof(tsk->comm));
task_unlock(tsk);
perf_event_comm(tsk);
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 21f46fb3a10..798d4458a4d 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1028,6 +1028,7 @@ int bdi_writeback_thread(void *data)
struct backing_dev_info *bdi = wb->bdi;
long pages_written;
+ set_worker_desc("flush-%s", dev_name(bdi->dev));
current->flags |= PF_SWAPWRITE;
set_freezable();
wb->last_active = jiffies;
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index 571abe97b42..de69d8a24f6 100644
--- a/fs/hfs/bfind.c
+++ b/fs/hfs/bfind.c
@@ -22,7 +22,8 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
return -ENOMEM;
fd->search_key = ptr;
fd->key = ptr + tree->max_key_len + 2;
- dprint(DBG_BNODE_REFS, "find_init: %d (%p)\n", tree->cnid, __builtin_return_address(0));
+ hfs_dbg(BNODE_REFS, "find_init: %d (%p)\n",
+ tree->cnid, __builtin_return_address(0));
mutex_lock(&tree->tree_lock);
return 0;
}
@@ -31,7 +32,8 @@ void hfs_find_exit(struct hfs_find_data *fd)
{
hfs_bnode_put(fd->bnode);
kfree(fd->search_key);
- dprint(DBG_BNODE_REFS, "find_exit: %d (%p)\n", fd->tree->cnid, __builtin_return_address(0));
+ hfs_dbg(BNODE_REFS, "find_exit: %d (%p)\n",
+ fd->tree->cnid, __builtin_return_address(0));
mutex_unlock(&fd->tree->tree_lock);
fd->tree = NULL;
}
@@ -135,8 +137,8 @@ int hfs_brec_find(struct hfs_find_data *fd)
return res;
invalid:
- printk(KERN_ERR "hfs: inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
- height, bnode->height, bnode->type, nidx, parent);
+ pr_err("inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
+ height, bnode->height, bnode->type, nidx, parent);
res = -EIO;
release:
hfs_bnode_put(bnode);
diff --git a/fs/hfs/bitmap.c b/fs/hfs/bitmap.c
index c6e97366e8a..28307bc9ec1 100644
--- a/fs/hfs/bitmap.c
+++ b/fs/hfs/bitmap.c
@@ -158,7 +158,7 @@ u32 hfs_vbm_search_free(struct super_block *sb, u32 goal, u32 *num_bits)
}
}
- dprint(DBG_BITMAP, "alloc_bits: %u,%u\n", pos, *num_bits);
+ hfs_dbg(BITMAP, "alloc_bits: %u,%u\n", pos, *num_bits);
HFS_SB(sb)->free_ablocks -= *num_bits;
hfs_bitmap_dirty(sb);
out:
@@ -200,7 +200,7 @@ int hfs_clear_vbm_bits(struct super_block *sb, u16 start, u16 count)
if (!count)
return 0;
- dprint(DBG_BITMAP, "clear_bits: %u,%u\n", start, count);
+ hfs_dbg(BITMAP, "clear_bits: %u,%u\n", start, count);
/* are all of the bits in range? */
if ((start + count) > HFS_SB(sb)->fs_ablocks)
return -2;
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index cdb41a1f6a6..f3b1a15ccd5 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -100,7 +100,7 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
struct hfs_btree *tree;
struct page *src_page, *dst_page;
- dprint(DBG_BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
tree = src_node->tree;
@@ -120,7 +120,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
struct page *page;
void *ptr;
- dprint(DBG_BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
src += node->page_offset;
@@ -138,16 +138,16 @@ void hfs_bnode_dump(struct hfs_bnode *node)
__be32 cnid;
int i, off, key_off;
- dprint(DBG_BNODE_MOD, "bnode: %d\n", node->this);
+ hfs_dbg(BNODE_MOD, "bnode: %d\n", node->this);
hfs_bnode_read(node, &desc, 0, sizeof(desc));
- dprint(DBG_BNODE_MOD, "%d, %d, %d, %d, %d\n",
+ hfs_dbg(BNODE_MOD, "%d, %d, %d, %d, %d\n",
be32_to_cpu(desc.next), be32_to_cpu(desc.prev),
desc.type, desc.height, be16_to_cpu(desc.num_recs));
off = node->tree->node_size - 2;
for (i = be16_to_cpu(desc.num_recs); i >= 0; off -= 2, i--) {
key_off = hfs_bnode_read_u16(node, off);
- dprint(DBG_BNODE_MOD, " %d", key_off);
+ hfs_dbg_cont(BNODE_MOD, " %d", key_off);
if (i && node->type == HFS_NODE_INDEX) {
int tmp;
@@ -155,17 +155,18 @@ void hfs_bnode_dump(struct hfs_bnode *node)
tmp = (hfs_bnode_read_u8(node, key_off) | 1) + 1;
else
tmp = node->tree->max_key_len + 1;
- dprint(DBG_BNODE_MOD, " (%d,%d", tmp, hfs_bnode_read_u8(node, key_off));
+ hfs_dbg_cont(BNODE_MOD, " (%d,%d",
+ tmp, hfs_bnode_read_u8(node, key_off));
hfs_bnode_read(node, &cnid, key_off + tmp, 4);
- dprint(DBG_BNODE_MOD, ",%d)", be32_to_cpu(cnid));
+ hfs_dbg_cont(BNODE_MOD, ",%d)", be32_to_cpu(cnid));
} else if (i && node->type == HFS_NODE_LEAF) {
int tmp;
tmp = hfs_bnode_read_u8(node, key_off);
- dprint(DBG_BNODE_MOD, " (%d)", tmp);
+ hfs_dbg_cont(BNODE_MOD, " (%d)", tmp);
}
}
- dprint(DBG_BNODE_MOD, "\n");
+ hfs_dbg_cont(BNODE_MOD, "\n");
}
void hfs_bnode_unlink(struct hfs_bnode *node)
@@ -220,7 +221,7 @@ struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid)
struct hfs_bnode *node;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node %d in B*Tree\n", cnid);
+ pr_err("request for non-existent node %d in B*Tree\n", cnid);
return NULL;
}
@@ -243,7 +244,7 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
loff_t off;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node %d in B*Tree\n", cnid);
+ pr_err("request for non-existent node %d in B*Tree\n", cnid);
return NULL;
}
@@ -257,8 +258,8 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
node->this = cnid;
set_bit(HFS_BNODE_NEW, &node->flags);
atomic_set(&node->refcnt, 1);
- dprint(DBG_BNODE_REFS, "new_node(%d:%d): 1\n",
- node->tree->cnid, node->this);
+ hfs_dbg(BNODE_REFS, "new_node(%d:%d): 1\n",
+ node->tree->cnid, node->this);
init_waitqueue_head(&node->lock_wq);
spin_lock(&tree->hash_lock);
node2 = hfs_bnode_findhash(tree, cnid);
@@ -301,7 +302,7 @@ void hfs_bnode_unhash(struct hfs_bnode *node)
{
struct hfs_bnode **p;
- dprint(DBG_BNODE_REFS, "remove_node(%d:%d): %d\n",
+ hfs_dbg(BNODE_REFS, "remove_node(%d:%d): %d\n",
node->tree->cnid, node->this, atomic_read(&node->refcnt));
for (p = &node->tree->node_hash[hfs_bnode_hash(node->this)];
*p && *p != node; p = &(*p)->next_hash)
@@ -443,8 +444,9 @@ void hfs_bnode_get(struct hfs_bnode *node)
{
if (node) {
atomic_inc(&node->refcnt);
- dprint(DBG_BNODE_REFS, "get_node(%d:%d): %d\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ hfs_dbg(BNODE_REFS, "get_node(%d:%d): %d\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
}
}
@@ -455,8 +457,9 @@ void hfs_bnode_put(struct hfs_bnode *node)
struct hfs_btree *tree = node->tree;
int i;
- dprint(DBG_BNODE_REFS, "put_node(%d:%d): %d\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ hfs_dbg(BNODE_REFS, "put_node(%d:%d): %d\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
BUG_ON(!atomic_read(&node->refcnt));
if (!atomic_dec_and_lock(&node->refcnt, &tree->hash_lock))
return;
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 92fb358ce82..9f4ee7f5202 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -47,15 +47,13 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
if (node->tree->attributes & HFS_TREE_BIGKEYS) {
retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
- printk(KERN_ERR "hfs: keylen %d too large\n",
- retval);
+ pr_err("keylen %d too large\n", retval);
retval = 0;
}
} else {
retval = (hfs_bnode_read_u8(node, recoff) | 1) + 1;
if (retval > node->tree->max_key_len + 1) {
- printk(KERN_ERR "hfs: keylen %d too large\n",
- retval);
+ pr_err("keylen %d too large\n", retval);
retval = 0;
}
}
@@ -94,7 +92,8 @@ again:
end_rec_off = tree->node_size - (node->num_recs + 1) * 2;
end_off = hfs_bnode_read_u16(node, end_rec_off);
end_rec_off -= 2;
- dprint(DBG_BNODE_MOD, "insert_rec: %d, %d, %d, %d\n", rec, size, end_off, end_rec_off);
+ hfs_dbg(BNODE_MOD, "insert_rec: %d, %d, %d, %d\n",
+ rec, size, end_off, end_rec_off);
if (size > end_rec_off - end_off) {
if (new_node)
panic("not enough room!\n");
@@ -190,7 +189,8 @@ again:
mark_inode_dirty(tree->inode);
}
hfs_bnode_dump(node);
- dprint(DBG_BNODE_MOD, "remove_rec: %d, %d\n", fd->record, fd->keylength + fd->entrylength);
+ hfs_dbg(BNODE_MOD, "remove_rec: %d, %d\n",
+ fd->record, fd->keylength + fd->entrylength);
if (!--node->num_recs) {
hfs_bnode_unlink(node);
if (!node->parent)
@@ -240,7 +240,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd)
if (IS_ERR(new_node))
return new_node;
hfs_bnode_get(node);
- dprint(DBG_BNODE_MOD, "split_nodes: %d - %d - %d\n",
+ hfs_dbg(BNODE_MOD, "split_nodes: %d - %d - %d\n",
node->this, new_node->this, node->next);
new_node->next = node->next;
new_node->prev = node->this;
@@ -374,7 +374,8 @@ again:
newkeylen = (hfs_bnode_read_u8(node, 14) | 1) + 1;
else
fd->keylength = newkeylen = tree->max_key_len + 1;
- dprint(DBG_BNODE_MOD, "update_rec: %d, %d, %d\n", rec, fd->keylength, newkeylen);
+ hfs_dbg(BNODE_MOD, "update_rec: %d, %d, %d\n",
+ rec, fd->keylength, newkeylen);
rec_off = tree->node_size - (rec + 2) * 2;
end_rec_off = tree->node_size - (parent->num_recs + 1) * 2;
@@ -385,7 +386,7 @@ again:
end_off = hfs_bnode_read_u16(parent, end_rec_off);
if (end_rec_off - end_off < diff) {
- printk(KERN_DEBUG "hfs: splitting index node...\n");
+ printk(KERN_DEBUG "splitting index node...\n");
fd->bnode = parent;
new_node = hfs_bnode_split(fd);
if (IS_ERR(new_node))
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 1cbdeea1db4..1ab19e660e6 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -48,7 +48,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
mdb->drXTFlSize, be32_to_cpu(mdb->drXTClpSiz));
if (HFS_I(tree->inode)->alloc_blocks >
HFS_I(tree->inode)->first_blocks) {
- printk(KERN_ERR "hfs: invalid btree extent records\n");
+ pr_err("invalid btree extent records\n");
unlock_new_inode(tree->inode);
goto free_inode;
}
@@ -60,8 +60,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
mdb->drCTFlSize, be32_to_cpu(mdb->drCTClpSiz));
if (!HFS_I(tree->inode)->first_blocks) {
- printk(KERN_ERR "hfs: invalid btree extent records "
- "(0 size).\n");
+ pr_err("invalid btree extent records (0 size)\n");
unlock_new_inode(tree->inode);
goto free_inode;
}
@@ -100,15 +99,15 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
switch (id) {
case HFS_EXT_CNID:
if (tree->max_key_len != HFS_MAX_EXT_KEYLEN) {
- printk(KERN_ERR "hfs: invalid extent max_key_len %d\n",
- tree->max_key_len);
+ pr_err("invalid extent max_key_len %d\n",
+ tree->max_key_len);
goto fail_page;
}
break;
case HFS_CAT_CNID:
if (tree->max_key_len != HFS_MAX_CAT_KEYLEN) {
- printk(KERN_ERR "hfs: invalid catalog max_key_len %d\n",
- tree->max_key_len);
+ pr_err("invalid catalog max_key_len %d\n",
+ tree->max_key_len);
goto fail_page;
}
break;
@@ -146,8 +145,9 @@ void hfs_btree_close(struct hfs_btree *tree)
while ((node = tree->node_hash[i])) {
tree->node_hash[i] = node->next_hash;
if (atomic_read(&node->refcnt))
- printk(KERN_ERR "hfs: node %d:%d still has %d user(s)!\n",
- node->tree->cnid, node->this, atomic_read(&node->refcnt));
+ pr_err("node %d:%d still has %d user(s)!\n",
+ node->tree->cnid, node->this,
+ atomic_read(&node->refcnt));
hfs_bnode_free(node);
tree->node_hash_cnt--;
}
@@ -290,7 +290,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
kunmap(*pagep);
nidx = node->next;
if (!nidx) {
- printk(KERN_DEBUG "hfs: create new bmap node...\n");
+ printk(KERN_DEBUG "create new bmap node...\n");
next_node = hfs_bmap_new_bmap(node, idx);
} else
next_node = hfs_bnode_find(tree, nidx);
@@ -316,7 +316,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
u32 nidx;
u8 *data, byte, m;
- dprint(DBG_BNODE_MOD, "btree_free_node: %u\n", node->this);
+ hfs_dbg(BNODE_MOD, "btree_free_node: %u\n", node->this);
tree = node->tree;
nidx = node->this;
node = hfs_bnode_find(tree, 0);
@@ -331,7 +331,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
hfs_bnode_put(node);
if (!i) {
/* panic */;
- printk(KERN_CRIT "hfs: unable to free bnode %u. bmap not found!\n", node->this);
+ pr_crit("unable to free bnode %u. bmap not found!\n",
+ node->this);
return;
}
node = hfs_bnode_find(tree, i);
@@ -339,7 +340,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
return;
if (node->type != HFS_NODE_MAP) {
/* panic */;
- printk(KERN_CRIT "hfs: invalid bmap found! (%u,%d)\n", node->this, node->type);
+ pr_crit("invalid bmap found! (%u,%d)\n",
+ node->this, node->type);
hfs_bnode_put(node);
return;
}
@@ -352,7 +354,8 @@ void hfs_bmap_free(struct hfs_bnode *node)
m = 1 << (~nidx & 7);
byte = data[off];
if (!(byte & m)) {
- printk(KERN_CRIT "hfs: trying to free free bnode %u(%d)\n", node->this, node->type);
+ pr_crit("trying to free free bnode %u(%d)\n",
+ node->this, node->type);
kunmap(page);
hfs_bnode_put(node);
return;
diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c
index 424b0337f52..ff0316b925a 100644
--- a/fs/hfs/catalog.c
+++ b/fs/hfs/catalog.c
@@ -87,12 +87,15 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
int entry_size;
int err;
- dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);
+ hfs_dbg(CAT_MOD, "create_cat: %s,%u(%d)\n",
+ str->name, cnid, inode->i_nlink);
if (dir->i_size >= HFS_MAX_VALENCE)
return -ENOSPC;
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
entry_size = hfs_cat_build_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
@@ -184,14 +187,14 @@ int hfs_cat_find_brec(struct super_block *sb, u32 cnid,
type = rec.type;
if (type != HFS_CDR_THD && type != HFS_CDR_FTH) {
- printk(KERN_ERR "hfs: found bad thread record in catalog\n");
+ pr_err("found bad thread record in catalog\n");
return -EIO;
}
fd->search_key->cat.ParID = rec.thread.ParID;
len = fd->search_key->cat.CName.len = rec.thread.CName.len;
if (len > HFS_NAMELEN) {
- printk(KERN_ERR "hfs: bad catalog namelength\n");
+ pr_err("bad catalog namelength\n");
return -EIO;
}
memcpy(fd->search_key->cat.CName.name, rec.thread.CName.name, len);
@@ -212,9 +215,11 @@ int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
struct list_head *pos;
int res, type;
- dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
+ hfs_dbg(CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
sb = dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ return res;
hfs_cat_build_key(sb, fd.search_key, dir->i_ino, str);
res = hfs_brec_find(&fd);
@@ -278,10 +283,13 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
int entry_size, type;
int err;
- dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,
+ hfs_dbg(CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n",
+ cnid, src_dir->i_ino, src_name->name,
dst_dir->i_ino, dst_name->name);
sb = src_dir->i_sb;
- hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &src_fd);
+ if (err)
+ return err;
dst_fd = src_fd;
/* find the old dir entry and read the data */
diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c
index 5f7f1abd5f6..17c22a8fd40 100644
--- a/fs/hfs/dir.c
+++ b/fs/hfs/dir.c
@@ -25,7 +25,9 @@ static struct dentry *hfs_lookup(struct inode *dir, struct dentry *dentry,
struct inode *inode = NULL;
int res;
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res)
+ return ERR_PTR(res);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (res) {
@@ -63,7 +65,9 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
if (filp->f_pos >= inode->i_size)
return 0;
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ err = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (err)
+ return err;
hfs_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);
err = hfs_brec_find(&fd);
if (err)
@@ -84,12 +88,12 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, fd.entrylength);
if (entry.type != HFS_CDR_THD) {
- printk(KERN_ERR "hfs: bad catalog folder thread\n");
+ pr_err("bad catalog folder thread\n");
err = -EIO;
goto out;
}
//if (fd.entrylength < HFS_MIN_THREAD_SZ) {
- // printk(KERN_ERR "hfs: truncated catalog thread\n");
+ // pr_err("truncated catalog thread\n");
// err = -EIO;
// goto out;
//}
@@ -108,7 +112,7 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
for (;;) {
if (be32_to_cpu(fd.key->cat.ParID) != inode->i_ino) {
- printk(KERN_ERR "hfs: walked past end of dir\n");
+ pr_err("walked past end of dir\n");
err = -EIO;
goto out;
}
@@ -123,7 +127,7 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
len = hfs_mac2asc(sb, strbuf, &fd.key->cat.CName);
if (type == HFS_CDR_DIR) {
if (fd.entrylength < sizeof(struct hfs_cat_dir)) {
- printk(KERN_ERR "hfs: small dir entry\n");
+ pr_err("small dir entry\n");
err = -EIO;
goto out;
}
@@ -132,7 +136,7 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
break;
} else if (type == HFS_CDR_FIL) {
if (fd.entrylength < sizeof(struct hfs_cat_file)) {
- printk(KERN_ERR "hfs: small file entry\n");
+ pr_err("small file entry\n");
err = -EIO;
goto out;
}
@@ -140,7 +144,7 @@ static int hfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
be32_to_cpu(entry.file.FlNum), DT_REG))
break;
} else {
- printk(KERN_ERR "hfs: bad catalog entry type %d\n", type);
+ pr_err("bad catalog entry type %d\n", type);
err = -EIO;
goto out;
}
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c
index a67955a0c36..e33a0d36a93 100644
--- a/fs/hfs/extent.c
+++ b/fs/hfs/extent.c
@@ -107,7 +107,7 @@ static u16 hfs_ext_lastblock(struct hfs_extent *ext)
return be16_to_cpu(ext->block) + be16_to_cpu(ext->count);
}
-static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
+static int __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd)
{
int res;
@@ -116,26 +116,31 @@ static void __hfs_ext_write_extent(struct inode *inode, struct hfs_find_data *fd
res = hfs_brec_find(fd);
if (HFS_I(inode)->flags & HFS_FLG_EXT_NEW) {
if (res != -ENOENT)
- return;
+ return res;
hfs_brec_insert(fd, HFS_I(inode)->cached_extents, sizeof(hfs_extent_rec));
HFS_I(inode)->flags &= ~(HFS_FLG_EXT_DIRTY|HFS_FLG_EXT_NEW);
} else {
if (res)
- return;
+ return res;
hfs_bnode_write(fd->bnode, HFS_I(inode)->cached_extents, fd->entryoffset, fd->entrylength);
HFS_I(inode)->flags &= ~HFS_FLG_EXT_DIRTY;
}
+ return 0;
}
-void hfs_ext_write_extent(struct inode *inode)
+int hfs_ext_write_extent(struct inode *inode)
{
struct hfs_find_data fd;
+ int res = 0;
if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- __hfs_ext_write_extent(inode, &fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (res)
+ return res;
+ res = __hfs_ext_write_extent(inode, &fd);
hfs_find_exit(&fd);
}
+ return res;
}
static inline int __hfs_ext_read_extent(struct hfs_find_data *fd, struct hfs_extent *extent,
@@ -161,8 +166,11 @@ static inline int __hfs_ext_cache_extent(struct hfs_find_data *fd, struct inode
{
int res;
- if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY)
- __hfs_ext_write_extent(inode, fd);
+ if (HFS_I(inode)->flags & HFS_FLG_EXT_DIRTY) {
+ res = __hfs_ext_write_extent(inode, fd);
+ if (res)
+ return res;
+ }
res = __hfs_ext_read_extent(fd, HFS_I(inode)->cached_extents, inode->i_ino,
block, HFS_IS_RSRC(inode) ? HFS_FK_RSRC : HFS_FK_DATA);
@@ -185,9 +193,11 @@ static int hfs_ext_read_extent(struct inode *inode, u16 block)
block < HFS_I(inode)->cached_start + HFS_I(inode)->cached_blocks)
return 0;
- hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
- res = __hfs_ext_cache_extent(&fd, inode, block);
- hfs_find_exit(&fd);
+ res = hfs_find_init(HFS_SB(inode->i_sb)->ext_tree, &fd);
+ if (!res) {
+ res = __hfs_ext_cache_extent(&fd, inode, block);
+ hfs_find_exit(&fd);
+ }
return res;
}
@@ -195,11 +205,12 @@ static void hfs_dump_extent(struct hfs_extent *extent)
{
int i;
- dprint(DBG_EXTENT, " ");
+ hfs_dbg(EXTENT, " ");
for (i = 0; i < 3; i++)
- dprint(DBG_EXTENT, " %u:%u", be16_to_cpu(extent[i].block),
- be16_to_cpu(extent[i].count));
- dprint(DBG_EXTENT, "\n");
+ hfs_dbg_cont(EXTENT, " %u:%u",
+ be16_to_cpu(extent[i].block),
+ be16_to_cpu(extent[i].count));
+ hfs_dbg_cont(EXTENT, "\n");
}
static int hfs_add_extent(struct hfs_extent *extent, u16 offset,
@@ -298,7 +309,9 @@ int hfs_free_fork(struct super_block *sb, struct hfs_cat_file *file, int type)
if (total_blocks == blocks)
return 0;
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res)
+ return res;
do {
res = __hfs_ext_read_extent(&fd, extent, cnid, total_blocks, type);
if (res)
@@ -392,10 +405,10 @@ int hfs_extend_file(struct inode *inode)
goto out;
}
- dprint(DBG_EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
+ hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
if (HFS_I(inode)->alloc_blocks == HFS_I(inode)->first_blocks) {
if (!HFS_I(inode)->first_blocks) {
- dprint(DBG_EXTENT, "first extents\n");
+ hfs_dbg(EXTENT, "first extents\n");
/* no extents yet */
HFS_I(inode)->first_extents[0].block = cpu_to_be16(start);
HFS_I(inode)->first_extents[0].count = cpu_to_be16(len);
@@ -437,8 +450,10 @@ out:
return res;
insert_extent:
- dprint(DBG_EXTENT, "insert new extent\n");
- hfs_ext_write_extent(inode);
+ hfs_dbg(EXTENT, "insert new extent\n");
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ goto out;
memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
HFS_I(inode)->cached_extents[0].block = cpu_to_be16(start);
@@ -460,13 +475,13 @@ void hfs_file_truncate(struct inode *inode)
u32 size;
int res;
- dprint(DBG_INODE, "truncate: %lu, %Lu -> %Lu\n", inode->i_ino,
- (long long)HFS_I(inode)->phys_size, inode->i_size);
+ hfs_dbg(INODE, "truncate: %lu, %Lu -> %Lu\n",
+ inode->i_ino, (long long)HFS_I(inode)->phys_size,
+ inode->i_size);
if (inode->i_size > HFS_I(inode)->phys_size) {
struct address_space *mapping = inode->i_mapping;
void *fsdata;
struct page *page;
- int res;
/* XXX: Can use generic_cont_expand? */
size = inode->i_size - 1;
@@ -488,7 +503,12 @@ void hfs_file_truncate(struct inode *inode)
goto out;
mutex_lock(&HFS_I(inode)->extents_lock);
- hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->ext_tree, &fd);
+ if (res) {
+ mutex_unlock(&HFS_I(inode)->extents_lock);
+ /* XXX: We lack error handling of hfs_file_truncate() */
+ return;
+ }
while (1) {
if (alloc_cnt == HFS_I(inode)->first_blocks) {
hfs_free_extents(sb, HFS_I(inode)->first_extents,
diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h
index 693df9fe52b..a73b11839a4 100644
--- a/fs/hfs/hfs_fs.h
+++ b/fs/hfs/hfs_fs.h
@@ -9,6 +9,12 @@
#ifndef _LINUX_HFS_FS_H
#define _LINUX_HFS_FS_H
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/mutex.h>
@@ -34,8 +40,18 @@
//#define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
#define DBG_MASK (0)
-#define dprint(flg, fmt, args...) \
- if (flg & DBG_MASK) printk(fmt , ## args)
+#define hfs_dbg(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
+} while (0)
+
+#define hfs_dbg_cont(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ pr_cont(fmt, ##__VA_ARGS__); \
+} while (0)
+
/*
* struct hfs_inode_info
@@ -174,7 +190,7 @@ extern const struct inode_operations hfs_dir_inode_operations;
/* extent.c */
extern int hfs_ext_keycmp(const btree_key *, const btree_key *);
extern int hfs_free_fork(struct super_block *, struct hfs_cat_file *, int);
-extern void hfs_ext_write_extent(struct inode *);
+extern int hfs_ext_write_extent(struct inode *);
extern int hfs_extend_file(struct inode *);
extern void hfs_file_truncate(struct inode *);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 3031dfdd235..716e1aafb2e 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -237,7 +237,7 @@ void hfs_delete_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
- dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino);
+ hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
if (S_ISDIR(inode->i_mode)) {
HFS_SB(sb)->folder_count--;
if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
@@ -416,9 +416,12 @@ int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
struct inode *main_inode = inode;
struct hfs_find_data fd;
hfs_cat_rec rec;
+ int res;
- dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
- hfs_ext_write_extent(inode);
+ hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
+ res = hfs_ext_write_extent(inode);
+ if (res)
+ return res;
if (inode->i_ino < HFS_FIRSTUSER_CNID) {
switch (inode->i_ino) {
@@ -515,7 +518,11 @@ static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
if (!inode)
return ERR_PTR(-ENOMEM);
- hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+ if (res) {
+ iput(inode);
+ return ERR_PTR(res);
+ }
fd.search_key->cat = HFS_I(dir)->cat_key;
res = hfs_brec_read(&fd, &rec, sizeof(rec));
if (!res) {
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index b7ec224910c..aa3f0d6d043 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -48,7 +48,7 @@ static int hfs_get_last_session(struct super_block *sb,
*start = (sector_t)te.cdte_addr.lba << 2;
return 0;
}
- printk(KERN_ERR "hfs: invalid session number or type of track\n");
+ pr_err("invalid session number or type of track\n");
return -EINVAL;
}
ms_info.addr_format = CDROM_LBA;
@@ -101,7 +101,7 @@ int hfs_mdb_get(struct super_block *sb)
HFS_SB(sb)->alloc_blksz = size = be32_to_cpu(mdb->drAlBlkSiz);
if (!size || (size & (HFS_SECTOR_SIZE - 1))) {
- printk(KERN_ERR "hfs: bad allocation block size %d\n", size);
+ pr_err("bad allocation block size %d\n", size);
goto out_bh;
}
@@ -118,7 +118,7 @@ int hfs_mdb_get(struct super_block *sb)
size >>= 1;
brelse(bh);
if (!sb_set_blocksize(sb, size)) {
- printk(KERN_ERR "hfs: unable to set blocksize to %u\n", size);
+ pr_err("unable to set blocksize to %u\n", size);
goto out;
}
@@ -162,8 +162,8 @@ int hfs_mdb_get(struct super_block *sb)
}
if (!HFS_SB(sb)->alt_mdb) {
- printk(KERN_WARNING "hfs: unable to locate alternate MDB\n");
- printk(KERN_WARNING "hfs: continuing without an alternate MDB\n");
+ pr_warn("unable to locate alternate MDB\n");
+ pr_warn("continuing without an alternate MDB\n");
}
HFS_SB(sb)->bitmap = (__be32 *)__get_free_pages(GFP_KERNEL, PAGE_SIZE < 8192 ? 1 : 0);
@@ -178,7 +178,7 @@ int hfs_mdb_get(struct super_block *sb)
while (size) {
bh = sb_bread(sb, off >> sb->s_blocksize_bits);
if (!bh) {
- printk(KERN_ERR "hfs: unable to read volume bitmap\n");
+ pr_err("unable to read volume bitmap\n");
goto out;
}
off2 = off & (sb->s_blocksize - 1);
@@ -192,23 +192,22 @@ int hfs_mdb_get(struct super_block *sb)
HFS_SB(sb)->ext_tree = hfs_btree_open(sb, HFS_EXT_CNID, hfs_ext_keycmp);
if (!HFS_SB(sb)->ext_tree) {
- printk(KERN_ERR "hfs: unable to open extent tree\n");
+ pr_err("unable to open extent tree\n");
goto out;
}
HFS_SB(sb)->cat_tree = hfs_btree_open(sb, HFS_CAT_CNID, hfs_cat_keycmp);
if (!HFS_SB(sb)->cat_tree) {
- printk(KERN_ERR "hfs: unable to open catalog tree\n");
+ pr_err("unable to open catalog tree\n");
goto out;
}
attrib = mdb->drAtrb;
if (!(attrib & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
- printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
- "running fsck.hfs is recommended. mounting read-only.\n");
+ pr_warn("filesystem was not cleanly unmounted, running fsck.hfs is recommended. mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
if ((attrib & cpu_to_be16(HFS_SB_ATTRIB_SLOCK))) {
- printk(KERN_WARNING "hfs: filesystem is marked locked, mounting read-only.\n");
+ pr_warn("filesystem is marked locked, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
if (!(sb->s_flags & MS_RDONLY)) {
@@ -312,7 +311,7 @@ void hfs_mdb_commit(struct super_block *sb)
while (size) {
bh = sb_bread(sb, block);
if (!bh) {
- printk(KERN_ERR "hfs: unable to read volume bitmap\n");
+ pr_err("unable to read volume bitmap\n");
break;
}
len = min((int)sb->s_blocksize - off, size);
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index bbaaa8a4ee6..2d2039e754c 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -117,12 +117,11 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data)
return 0;
if (!(*flags & MS_RDONLY)) {
if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
- printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
- "running fsck.hfs is recommended. leaving read-only.\n");
+ pr_warn("filesystem was not cleanly unmounted, running fsck.hfs is recommended. leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
} else if (HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_SLOCK)) {
- printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n");
+ pr_warn("filesystem is marked locked, leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
}
@@ -253,29 +252,29 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
switch (token) {
case opt_uid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: uid requires an argument\n");
+ pr_err("uid requires an argument\n");
return 0;
}
hsb->s_uid = make_kuid(current_user_ns(), (uid_t)tmp);
if (!uid_valid(hsb->s_uid)) {
- printk(KERN_ERR "hfs: invalid uid %d\n", tmp);
+ pr_err("invalid uid %d\n", tmp);
return 0;
}
break;
case opt_gid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: gid requires an argument\n");
+ pr_err("gid requires an argument\n");
return 0;
}
hsb->s_gid = make_kgid(current_user_ns(), (gid_t)tmp);
if (!gid_valid(hsb->s_gid)) {
- printk(KERN_ERR "hfs: invalid gid %d\n", tmp);
+ pr_err("invalid gid %d\n", tmp);
return 0;
}
break;
case opt_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: umask requires a value\n");
+ pr_err("umask requires a value\n");
return 0;
}
hsb->s_file_umask = (umode_t)tmp;
@@ -283,39 +282,39 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_file_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: file_umask requires a value\n");
+ pr_err("file_umask requires a value\n");
return 0;
}
hsb->s_file_umask = (umode_t)tmp;
break;
case opt_dir_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: dir_umask requires a value\n");
+ pr_err("dir_umask requires a value\n");
return 0;
}
hsb->s_dir_umask = (umode_t)tmp;
break;
case opt_part:
if (match_int(&args[0], &hsb->part)) {
- printk(KERN_ERR "hfs: part requires an argument\n");
+ pr_err("part requires an argument\n");
return 0;
}
break;
case opt_session:
if (match_int(&args[0], &hsb->session)) {
- printk(KERN_ERR "hfs: session requires an argument\n");
+ pr_err("session requires an argument\n");
return 0;
}
break;
case opt_type:
if (match_fourchar(&args[0], &hsb->s_type)) {
- printk(KERN_ERR "hfs: type requires a 4 character value\n");
+ pr_err("type requires a 4 character value\n");
return 0;
}
break;
case opt_creator:
if (match_fourchar(&args[0], &hsb->s_creator)) {
- printk(KERN_ERR "hfs: creator requires a 4 character value\n");
+ pr_err("creator requires a 4 character value\n");
return 0;
}
break;
@@ -324,14 +323,14 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_codepage:
if (hsb->nls_disk) {
- printk(KERN_ERR "hfs: unable to change codepage\n");
+ pr_err("unable to change codepage\n");
return 0;
}
p = match_strdup(&args[0]);
if (p)
hsb->nls_disk = load_nls(p);
if (!hsb->nls_disk) {
- printk(KERN_ERR "hfs: unable to load codepage \"%s\"\n", p);
+ pr_err("unable to load codepage \"%s\"\n", p);
kfree(p);
return 0;
}
@@ -339,14 +338,14 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
break;
case opt_iocharset:
if (hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to change iocharset\n");
+ pr_err("unable to change iocharset\n");
return 0;
}
p = match_strdup(&args[0]);
if (p)
hsb->nls_io = load_nls(p);
if (!hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to load iocharset \"%s\"\n", p);
+ pr_err("unable to load iocharset \"%s\"\n", p);
kfree(p);
return 0;
}
@@ -360,7 +359,7 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
if (hsb->nls_disk && !hsb->nls_io) {
hsb->nls_io = load_nls_default();
if (!hsb->nls_io) {
- printk(KERN_ERR "hfs: unable to load default iocharset\n");
+ pr_err("unable to load default iocharset\n");
return 0;
}
}
@@ -400,7 +399,7 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
res = -EINVAL;
if (!parse_options((char *)data, sbi)) {
- printk(KERN_ERR "hfs: unable to parse mount options.\n");
+ pr_err("unable to parse mount options\n");
goto bail;
}
@@ -411,14 +410,16 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
res = hfs_mdb_get(sb);
if (res) {
if (!silent)
- printk(KERN_WARNING "hfs: can't find a HFS filesystem on dev %s.\n",
+ pr_warn("can't find a HFS filesystem on dev %s\n",
hfs_mdb_name(sb));
res = -EINVAL;
goto bail;
}
/* try to get the root inode */
- hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ res = hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
+ if (res)
+ goto bail_no_root;
res = hfs_cat_find_brec(sb, HFS_ROOT_CNID, &fd);
if (!res) {
if (fd.entrylength > sizeof(rec) || fd.entrylength < 0) {
@@ -447,7 +448,7 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
return 0;
bail_no_root:
- printk(KERN_ERR "hfs: get root inode failed.\n");
+ pr_err("get root inode failed\n");
bail:
hfs_mdb_put(sb);
return res;
diff --git a/fs/hfsplus/attributes.c b/fs/hfsplus/attributes.c
index 8d691f12471..0f47890299c 100644
--- a/fs/hfsplus/attributes.c
+++ b/fs/hfsplus/attributes.c
@@ -56,7 +56,7 @@ int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
if (name) {
len = strlen(name);
if (len > HFSPLUS_ATTR_MAX_STRLEN) {
- printk(KERN_ERR "hfs: invalid xattr name's length\n");
+ pr_err("invalid xattr name's length\n");
return -EINVAL;
}
hfsplus_asc2uni(sb,
@@ -166,10 +166,10 @@ int hfsplus_find_attr(struct super_block *sb, u32 cnid,
{
int err = 0;
- dprint(DBG_ATTR_MOD, "find_attr: %s,%d\n", name ? name : NULL, cnid);
+ hfs_dbg(ATTR_MOD, "find_attr: %s,%d\n", name ? name : NULL, cnid);
if (!HFSPLUS_SB(sb)->attr_tree) {
- printk(KERN_ERR "hfs: attributes file doesn't exist\n");
+ pr_err("attributes file doesn't exist\n");
return -EINVAL;
}
@@ -228,11 +228,11 @@ int hfsplus_create_attr(struct inode *inode,
int entry_size;
int err;
- dprint(DBG_ATTR_MOD, "create_attr: %s,%ld\n",
+ hfs_dbg(ATTR_MOD, "create_attr: %s,%ld\n",
name ? name : NULL, inode->i_ino);
if (!HFSPLUS_SB(sb)->attr_tree) {
- printk(KERN_ERR "hfs: attributes file doesn't exist\n");
+ pr_err("attributes file doesn't exist\n");
return -EINVAL;
}
@@ -307,10 +307,10 @@ static int __hfsplus_delete_attr(struct inode *inode, u32 cnid,
break;
case HFSPLUS_ATTR_FORK_DATA:
case HFSPLUS_ATTR_EXTENTS:
- printk(KERN_ERR "hfs: only inline data xattr are supported\n");
+ pr_err("only inline data xattr are supported\n");
return -EOPNOTSUPP;
default:
- printk(KERN_ERR "hfs: invalid extended attribute record\n");
+ pr_err("invalid extended attribute record\n");
return -ENOENT;
}
@@ -328,11 +328,11 @@ int hfsplus_delete_attr(struct inode *inode, const char *name)
struct super_block *sb = inode->i_sb;
struct hfs_find_data fd;
- dprint(DBG_ATTR_MOD, "delete_attr: %s,%ld\n",
+ hfs_dbg(ATTR_MOD, "delete_attr: %s,%ld\n",
name ? name : NULL, inode->i_ino);
if (!HFSPLUS_SB(sb)->attr_tree) {
- printk(KERN_ERR "hfs: attributes file doesn't exist\n");
+ pr_err("attributes file doesn't exist\n");
return -EINVAL;
}
@@ -346,7 +346,7 @@ int hfsplus_delete_attr(struct inode *inode, const char *name)
if (err)
goto out;
} else {
- printk(KERN_ERR "hfs: invalid extended attribute name\n");
+ pr_err("invalid extended attribute name\n");
err = -EINVAL;
goto out;
}
@@ -369,10 +369,10 @@ int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid)
int err = 0;
struct hfs_find_data fd;
- dprint(DBG_ATTR_MOD, "delete_all_attrs: %d\n", cnid);
+ hfs_dbg(ATTR_MOD, "delete_all_attrs: %d\n", cnid);
if (!HFSPLUS_SB(dir->i_sb)->attr_tree) {
- printk(KERN_ERR "hfs: attributes file doesn't exist\n");
+ pr_err("attributes file doesn't exist\n");
return -EINVAL;
}
@@ -384,7 +384,7 @@ int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid)
err = hfsplus_find_attr(dir->i_sb, cnid, NULL, &fd);
if (err) {
if (err != -ENOENT)
- printk(KERN_ERR "hfs: xattr search failed.\n");
+ pr_err("xattr search failed\n");
goto end_delete_all;
}
diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
index d73c98d1ee9..c1422d91cd3 100644
--- a/fs/hfsplus/bfind.c
+++ b/fs/hfsplus/bfind.c
@@ -22,7 +22,7 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
return -ENOMEM;
fd->search_key = ptr;
fd->key = ptr + tree->max_key_len + 2;
- dprint(DBG_BNODE_REFS, "find_init: %d (%p)\n",
+ hfs_dbg(BNODE_REFS, "find_init: %d (%p)\n",
tree->cnid, __builtin_return_address(0));
switch (tree->cnid) {
case HFSPLUS_CAT_CNID:
@@ -44,7 +44,7 @@ void hfs_find_exit(struct hfs_find_data *fd)
{
hfs_bnode_put(fd->bnode);
kfree(fd->search_key);
- dprint(DBG_BNODE_REFS, "find_exit: %d (%p)\n",
+ hfs_dbg(BNODE_REFS, "find_exit: %d (%p)\n",
fd->tree->cnid, __builtin_return_address(0));
mutex_unlock(&fd->tree->tree_lock);
fd->tree = NULL;
@@ -56,7 +56,8 @@ int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode,
int *end,
int *cur_rec)
{
- __be32 cur_cnid, search_cnid;
+ __be32 cur_cnid;
+ __be32 search_cnid;
if (bnode->tree->cnid == HFSPLUS_EXT_CNID) {
cur_cnid = fd->key->ext.cnid;
@@ -67,8 +68,11 @@ int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode,
} else if (bnode->tree->cnid == HFSPLUS_ATTR_CNID) {
cur_cnid = fd->key->attr.cnid;
search_cnid = fd->search_key->attr.cnid;
- } else
+ } else {
+ cur_cnid = 0; /* used-uninitialized warning */
+ search_cnid = 0;
BUG();
+ }
if (cur_cnid == search_cnid) {
(*end) = (*cur_rec);
@@ -204,7 +208,7 @@ int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare)
return res;
invalid:
- printk(KERN_ERR "hfs: inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
+ pr_err("inconsistency in B*Tree (%d,%d,%d,%u,%u)\n",
height, bnode->height, bnode->type, nidx, parent);
res = -EIO;
release:
diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index 6feefc0cb48..d2954451519 100644
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -30,7 +30,7 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size,
if (!len)
return size;
- dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
+ hfs_dbg(BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);
mutex_lock(&sbi->alloc_mutex);
mapping = sbi->alloc_file->i_mapping;
page = read_mapping_page(mapping, offset / PAGE_CACHE_BITS, NULL);
@@ -89,14 +89,14 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size,
else
end = pptr + ((size + 31) & (PAGE_CACHE_BITS - 1)) / 32;
}
- dprint(DBG_BITMAP, "bitmap full\n");
+ hfs_dbg(BITMAP, "bitmap full\n");
start = size;
goto out;
found:
start = offset + (curr - pptr) * 32 + i;
if (start >= size) {
- dprint(DBG_BITMAP, "bitmap full\n");
+ hfs_dbg(BITMAP, "bitmap full\n");
goto out;
}
/* do any partial u32 at the start */
@@ -154,7 +154,7 @@ done:
*max = offset + (curr - pptr) * 32 + i - start;
sbi->free_blocks -= *max;
hfsplus_mark_mdb_dirty(sb);
- dprint(DBG_BITMAP, "-> %u,%u\n", start, *max);
+ hfs_dbg(BITMAP, "-> %u,%u\n", start, *max);
out:
mutex_unlock(&sbi->alloc_mutex);
return start;
@@ -173,7 +173,7 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)
if (!count)
return 0;
- dprint(DBG_BITMAP, "block_free: %u,%u\n", offset, count);
+ hfs_dbg(BITMAP, "block_free: %u,%u\n", offset, count);
/* are all of the bits in range? */
if ((offset + count) > sbi->total_blocks)
return -ENOENT;
@@ -238,8 +238,7 @@ out:
return 0;
kaboom:
- printk(KERN_CRIT "hfsplus: unable to mark blocks free: error %ld\n",
- PTR_ERR(page));
+ pr_crit("unable to mark blocks free: error %ld\n", PTR_ERR(page));
mutex_unlock(&sbi->alloc_mutex);
return -EIO;
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index f31ac6f404f..11c86020452 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -130,7 +130,7 @@ void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
struct page **src_page, **dst_page;
int l;
- dprint(DBG_BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "copybytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
tree = src_node->tree;
@@ -188,7 +188,7 @@ void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len)
struct page **src_page, **dst_page;
int l;
- dprint(DBG_BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
+ hfs_dbg(BNODE_MOD, "movebytes: %u,%u,%u\n", dst, src, len);
if (!len)
return;
src += node->page_offset;
@@ -302,16 +302,16 @@ void hfs_bnode_dump(struct hfs_bnode *node)
__be32 cnid;
int i, off, key_off;
- dprint(DBG_BNODE_MOD, "bnode: %d\n", node->this);
+ hfs_dbg(BNODE_MOD, "bnode: %d\n", node->this);
hfs_bnode_read(node, &desc, 0, sizeof(desc));
- dprint(DBG_BNODE_MOD, "%d, %d, %d, %d, %d\n",
+ hfs_dbg(BNODE_MOD, "%d, %d, %d, %d, %d\n",
be32_to_cpu(desc.next), be32_to_cpu(desc.prev),
desc.type, desc.height, be16_to_cpu(desc.num_recs));
off = node->tree->node_size - 2;
for (i = be16_to_cpu(desc.num_recs); i >= 0; off -= 2, i--) {
key_off = hfs_bnode_read_u16(node, off);
- dprint(DBG_BNODE_MOD, " %d", key_off);
+ hfs_dbg(BNODE_MOD, " %d", key_off);
if (i && node->type == HFS_NODE_INDEX) {
int tmp;
@@ -320,17 +320,17 @@ void hfs_bnode_dump(struct hfs_bnode *node)
tmp = hfs_bnode_read_u16(node, key_off) + 2;
else
tmp = node->tree->max_key_len + 2;
- dprint(DBG_BNODE_MOD, " (%d", tmp);
+ hfs_dbg_cont(BNODE_MOD, " (%d", tmp);
hfs_bnode_read(node, &cnid, key_off + tmp, 4);
- dprint(DBG_BNODE_MOD, ",%d)", be32_to_cpu(cnid));
+ hfs_dbg_cont(BNODE_MOD, ",%d)", be32_to_cpu(cnid));
} else if (i && node->type == HFS_NODE_LEAF) {
int tmp;
tmp = hfs_bnode_read_u16(node, key_off);
- dprint(DBG_BNODE_MOD, " (%d)", tmp);
+ hfs_dbg_cont(BNODE_MOD, " (%d)", tmp);
}
}
- dprint(DBG_BNODE_MOD, "\n");
+ hfs_dbg_cont(BNODE_MOD, "\n");
}
void hfs_bnode_unlink(struct hfs_bnode *node)
@@ -366,7 +366,7 @@ void hfs_bnode_unlink(struct hfs_bnode *node)
/* move down? */
if (!node->prev && !node->next)
- dprint(DBG_BNODE_MOD, "hfs_btree_del_level\n");
+ hfs_dbg(BNODE_MOD, "hfs_btree_del_level\n");
if (!node->parent) {
tree->root = 0;
tree->depth = 0;
@@ -386,7 +386,7 @@ struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid)
struct hfs_bnode *node;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node "
+ pr_err("request for non-existent node "
"%d in B*Tree\n",
cnid);
return NULL;
@@ -409,7 +409,7 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
loff_t off;
if (cnid >= tree->node_count) {
- printk(KERN_ERR "hfs: request for non-existent node "
+ pr_err("request for non-existent node "
"%d in B*Tree\n",
cnid);
return NULL;
@@ -425,8 +425,8 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
node->this = cnid;
set_bit(HFS_BNODE_NEW, &node->flags);
atomic_set(&node->refcnt, 1);
- dprint(DBG_BNODE_REFS, "new_node(%d:%d): 1\n",
- node->tree->cnid, node->this);
+ hfs_dbg(BNODE_REFS, "new_node(%d:%d): 1\n",
+ node->tree->cnid, node->this);
init_waitqueue_head(&node->lock_wq);
spin_lock(&tree->hash_lock);
node2 = hfs_bnode_findhash(tree, cnid);
@@ -470,7 +470,7 @@ void hfs_bnode_unhash(struct hfs_bnode *node)
{
struct hfs_bnode **p;
- dprint(DBG_BNODE_REFS, "remove_node(%d:%d): %d\n",
+ hfs_dbg(BNODE_REFS, "remove_node(%d:%d): %d\n",
node->tree->cnid, node->this, atomic_read(&node->refcnt));
for (p = &node->tree->node_hash[hfs_bnode_hash(node->this)];
*p && *p != node; p = &(*p)->next_hash)
@@ -588,7 +588,7 @@ struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num)
node = hfs_bnode_findhash(tree, num);
spin_unlock(&tree->hash_lock);
if (node) {
- printk(KERN_CRIT "new node %u already hashed?\n", num);
+ pr_crit("new node %u already hashed?\n", num);
WARN_ON(1);
return node;
}
@@ -620,7 +620,7 @@ void hfs_bnode_get(struct hfs_bnode *node)
{
if (node) {
atomic_inc(&node->refcnt);
- dprint(DBG_BNODE_REFS, "get_node(%d:%d): %d\n",
+ hfs_dbg(BNODE_REFS, "get_node(%d:%d): %d\n",
node->tree->cnid, node->this,
atomic_read(&node->refcnt));
}
@@ -633,7 +633,7 @@ void hfs_bnode_put(struct hfs_bnode *node)
struct hfs_btree *tree = node->tree;
int i;
- dprint(DBG_BNODE_REFS, "put_node(%d:%d): %d\n",
+ hfs_dbg(BNODE_REFS, "put_node(%d:%d): %d\n",
node->tree->cnid, node->this,
atomic_read(&node->refcnt));
BUG_ON(!atomic_read(&node->refcnt));
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 298d4e45604..6e560d56094 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -45,13 +45,13 @@ u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec)
if (!recoff)
return 0;
if (recoff > node->tree->node_size - 2) {
- printk(KERN_ERR "hfs: recoff %d too large\n", recoff);
+ pr_err("recoff %d too large\n", recoff);
return 0;
}
retval = hfs_bnode_read_u16(node, recoff) + 2;
if (retval > node->tree->max_key_len + 2) {
- printk(KERN_ERR "hfs: keylen %d too large\n",
+ pr_err("keylen %d too large\n",
retval);
retval = 0;
}
@@ -90,7 +90,7 @@ again:
end_rec_off = tree->node_size - (node->num_recs + 1) * 2;
end_off = hfs_bnode_read_u16(node, end_rec_off);
end_rec_off -= 2;
- dprint(DBG_BNODE_MOD, "insert_rec: %d, %d, %d, %d\n",
+ hfs_dbg(BNODE_MOD, "insert_rec: %d, %d, %d, %d\n",
rec, size, end_off, end_rec_off);
if (size > end_rec_off - end_off) {
if (new_node)
@@ -191,7 +191,7 @@ again:
mark_inode_dirty(tree->inode);
}
hfs_bnode_dump(node);
- dprint(DBG_BNODE_MOD, "remove_rec: %d, %d\n",
+ hfs_dbg(BNODE_MOD, "remove_rec: %d, %d\n",
fd->record, fd->keylength + fd->entrylength);
if (!--node->num_recs) {
hfs_bnode_unlink(node);
@@ -244,7 +244,7 @@ static struct hfs_bnode *hfs_bnode_split(struct hfs_find_data *fd)
if (IS_ERR(new_node))
return new_node;
hfs_bnode_get(node);
- dprint(DBG_BNODE_MOD, "split_nodes: %d - %d - %d\n",
+ hfs_dbg(BNODE_MOD, "split_nodes: %d - %d - %d\n",
node->this, new_node->this, node->next);
new_node->next = node->next;
new_node->prev = node->this;
@@ -379,7 +379,7 @@ again:
newkeylen = hfs_bnode_read_u16(node, 14) + 2;
else
fd->keylength = newkeylen = tree->max_key_len + 2;
- dprint(DBG_BNODE_MOD, "update_rec: %d, %d, %d\n",
+ hfs_dbg(BNODE_MOD, "update_rec: %d, %d, %d\n",
rec, fd->keylength, newkeylen);
rec_off = tree->node_size - (rec + 2) * 2;
@@ -391,7 +391,7 @@ again:
end_off = hfs_bnode_read_u16(parent, end_rec_off);
if (end_rec_off - end_off < diff) {
- dprint(DBG_BNODE_MOD, "hfs: splitting index node.\n");
+ hfs_dbg(BNODE_MOD, "splitting index node\n");
fd->bnode = parent;
new_node = hfs_bnode_split(fd);
if (IS_ERR(new_node))
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index efb689c21a9..0c6540c9116 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -40,8 +40,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
tree->inode = inode;
if (!HFSPLUS_I(tree->inode)->first_blocks) {
- printk(KERN_ERR
- "hfs: invalid btree extent records (0 size).\n");
+ pr_err("invalid btree extent records (0 size)\n");
goto free_inode;
}
@@ -68,12 +67,12 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
switch (id) {
case HFSPLUS_EXT_CNID:
if (tree->max_key_len != HFSPLUS_EXT_KEYLEN - sizeof(u16)) {
- printk(KERN_ERR "hfs: invalid extent max_key_len %d\n",
+ pr_err("invalid extent max_key_len %d\n",
tree->max_key_len);
goto fail_page;
}
if (tree->attributes & HFS_TREE_VARIDXKEYS) {
- printk(KERN_ERR "hfs: invalid extent btree flag\n");
+ pr_err("invalid extent btree flag\n");
goto fail_page;
}
@@ -81,12 +80,12 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
break;
case HFSPLUS_CAT_CNID:
if (tree->max_key_len != HFSPLUS_CAT_KEYLEN - sizeof(u16)) {
- printk(KERN_ERR "hfs: invalid catalog max_key_len %d\n",
+ pr_err("invalid catalog max_key_len %d\n",
tree->max_key_len);
goto fail_page;
}
if (!(tree->attributes & HFS_TREE_VARIDXKEYS)) {
- printk(KERN_ERR "hfs: invalid catalog btree flag\n");
+ pr_err("invalid catalog btree flag\n");
goto fail_page;
}
@@ -100,19 +99,19 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
break;
case HFSPLUS_ATTR_CNID:
if (tree->max_key_len != HFSPLUS_ATTR_KEYLEN - sizeof(u16)) {
- printk(KERN_ERR "hfs: invalid attributes max_key_len %d\n",
+ pr_err("invalid attributes max_key_len %d\n",
tree->max_key_len);
goto fail_page;
}
tree->keycmp = hfsplus_attr_bin_cmp_key;
break;
default:
- printk(KERN_ERR "hfs: unknown B*Tree requested\n");
+ pr_err("unknown B*Tree requested\n");
goto fail_page;
}
if (!(tree->attributes & HFS_TREE_BIGKEYS)) {
- printk(KERN_ERR "hfs: invalid btree flag\n");
+ pr_err("invalid btree flag\n");
goto fail_page;
}
@@ -155,7 +154,7 @@ void hfs_btree_close(struct hfs_btree *tree)
while ((node = tree->node_hash[i])) {
tree->node_hash[i] = node->next_hash;
if (atomic_read(&node->refcnt))
- printk(KERN_CRIT "hfs: node %d:%d "
+ pr_crit("node %d:%d "
"still has %d user(s)!\n",
node->tree->cnid, node->this,
atomic_read(&node->refcnt));
@@ -303,7 +302,7 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree)
kunmap(*pagep);
nidx = node->next;
if (!nidx) {
- dprint(DBG_BNODE_MOD, "hfs: create new bmap node.\n");
+ hfs_dbg(BNODE_MOD, "create new bmap node\n");
next_node = hfs_bmap_new_bmap(node, idx);
} else
next_node = hfs_bnode_find(tree, nidx);
@@ -329,7 +328,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
u32 nidx;
u8 *data, byte, m;
- dprint(DBG_BNODE_MOD, "btree_free_node: %u\n", node->this);
+ hfs_dbg(BNODE_MOD, "btree_free_node: %u\n", node->this);
BUG_ON(!node->this);
tree = node->tree;
nidx = node->this;
@@ -345,7 +344,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
hfs_bnode_put(node);
if (!i) {
/* panic */;
- printk(KERN_CRIT "hfs: unable to free bnode %u. "
+ pr_crit("unable to free bnode %u. "
"bmap not found!\n",
node->this);
return;
@@ -355,7 +354,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
return;
if (node->type != HFS_NODE_MAP) {
/* panic */;
- printk(KERN_CRIT "hfs: invalid bmap found! "
+ pr_crit("invalid bmap found! "
"(%u,%d)\n",
node->this, node->type);
hfs_bnode_put(node);
@@ -370,7 +369,7 @@ void hfs_bmap_free(struct hfs_bnode *node)
m = 1 << (~nidx & 7);
byte = data[off];
if (!(byte & m)) {
- printk(KERN_CRIT "hfs: trying to free free bnode "
+ pr_crit("trying to free free bnode "
"%u(%d)\n",
node->this, node->type);
kunmap(page);
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
index 840d71edd19..968ce411db5 100644
--- a/fs/hfsplus/catalog.c
+++ b/fs/hfsplus/catalog.c
@@ -188,12 +188,12 @@ int hfsplus_find_cat(struct super_block *sb, u32 cnid,
type = be16_to_cpu(tmp.type);
if (type != HFSPLUS_FOLDER_THREAD && type != HFSPLUS_FILE_THREAD) {
- printk(KERN_ERR "hfs: found bad thread record in catalog\n");
+ pr_err("found bad thread record in catalog\n");
return -EIO;
}
if (be16_to_cpu(tmp.thread.nodeName.length) > 255) {
- printk(KERN_ERR "hfs: catalog name length corrupted\n");
+ pr_err("catalog name length corrupted\n");
return -EIO;
}
@@ -212,7 +212,7 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir,
int entry_size;
int err;
- dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n",
+ hfs_dbg(CAT_MOD, "create_cat: %s,%u(%d)\n",
str->name, cnid, inode->i_nlink);
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
@@ -271,8 +271,7 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
int err, off;
u16 type;
- dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n",
- str ? str->name : NULL, cnid);
+ hfs_dbg(CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
if (err)
return err;
@@ -361,7 +360,7 @@ int hfsplus_rename_cat(u32 cnid,
int entry_size, type;
int err;
- dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n",
+ hfs_dbg(CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n",
cnid, src_dir->i_ino, src_name->name,
dst_dir->i_ino, dst_name->name);
err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &src_fd);
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 031c24e5052..a37ac934732 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -103,7 +103,7 @@ again:
} else if (!dentry->d_fsdata)
dentry->d_fsdata = (void *)(unsigned long)cnid;
} else {
- printk(KERN_ERR "hfs: invalid catalog entry type in lookup\n");
+ pr_err("invalid catalog entry type in lookup\n");
err = -EIO;
goto fail;
}
@@ -159,12 +159,12 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
fd.entrylength);
if (be16_to_cpu(entry.type) != HFSPLUS_FOLDER_THREAD) {
- printk(KERN_ERR "hfs: bad catalog folder thread\n");
+ pr_err("bad catalog folder thread\n");
err = -EIO;
goto out;
}
if (fd.entrylength < HFSPLUS_MIN_THREAD_SZ) {
- printk(KERN_ERR "hfs: truncated catalog thread\n");
+ pr_err("truncated catalog thread\n");
err = -EIO;
goto out;
}
@@ -183,7 +183,7 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
for (;;) {
if (be32_to_cpu(fd.key->cat.parent) != inode->i_ino) {
- printk(KERN_ERR "hfs: walked past end of dir\n");
+ pr_err("walked past end of dir\n");
err = -EIO;
goto out;
}
@@ -203,7 +203,7 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
if (type == HFSPLUS_FOLDER) {
if (fd.entrylength <
sizeof(struct hfsplus_cat_folder)) {
- printk(KERN_ERR "hfs: small dir entry\n");
+ pr_err("small dir entry\n");
err = -EIO;
goto out;
}
@@ -216,7 +216,7 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
break;
} else if (type == HFSPLUS_FILE) {
if (fd.entrylength < sizeof(struct hfsplus_cat_file)) {
- printk(KERN_ERR "hfs: small file entry\n");
+ pr_err("small file entry\n");
err = -EIO;
goto out;
}
@@ -224,7 +224,7 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir)
be32_to_cpu(entry.file.id), DT_REG))
break;
} else {
- printk(KERN_ERR "hfs: bad catalog entry type\n");
+ pr_err("bad catalog entry type\n");
err = -EIO;
goto out;
}
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index fe0a76213d9..fbb212fbb1e 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -83,7 +83,7 @@ static u32 hfsplus_ext_lastblock(struct hfsplus_extent *ext)
return be32_to_cpu(ext->start_block) + be32_to_cpu(ext->block_count);
}
-static void __hfsplus_ext_write_extent(struct inode *inode,
+static int __hfsplus_ext_write_extent(struct inode *inode,
struct hfs_find_data *fd)
{
struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
@@ -98,13 +98,13 @@ static void __hfsplus_ext_write_extent(struct inode *inode,
res = hfs_brec_find(fd, hfs_find_rec_by_key);
if (hip->extent_state & HFSPLUS_EXT_NEW) {
if (res != -ENOENT)
- return;
+ return res;
hfs_brec_insert(fd, hip->cached_extents,
sizeof(hfsplus_extent_rec));
hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW);
} else {
if (res)
- return;
+ return res;
hfs_bnode_write(fd->bnode, hip->cached_extents,
fd->entryoffset, fd->entrylength);
hip->extent_state &= ~HFSPLUS_EXT_DIRTY;
@@ -117,11 +117,13 @@ static void __hfsplus_ext_write_extent(struct inode *inode,
* to explicily mark the inode dirty, too.
*/
set_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags);
+
+ return 0;
}
static int hfsplus_ext_write_extent_locked(struct inode *inode)
{
- int res;
+ int res = 0;
if (HFSPLUS_I(inode)->extent_state & HFSPLUS_EXT_DIRTY) {
struct hfs_find_data fd;
@@ -129,10 +131,10 @@ static int hfsplus_ext_write_extent_locked(struct inode *inode)
res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);
if (res)
return res;
- __hfsplus_ext_write_extent(inode, &fd);
+ res = __hfsplus_ext_write_extent(inode, &fd);
hfs_find_exit(&fd);
}
- return 0;
+ return res;
}
int hfsplus_ext_write_extent(struct inode *inode)
@@ -175,8 +177,11 @@ static inline int __hfsplus_ext_cache_extent(struct hfs_find_data *fd,
WARN_ON(!mutex_is_locked(&hip->extents_lock));
- if (hip->extent_state & HFSPLUS_EXT_DIRTY)
- __hfsplus_ext_write_extent(inode, fd);
+ if (hip->extent_state & HFSPLUS_EXT_DIRTY) {
+ res = __hfsplus_ext_write_extent(inode, fd);
+ if (res)
+ return res;
+ }
res = __hfsplus_ext_read_extent(fd, hip->cached_extents, inode->i_ino,
block, HFSPLUS_IS_RSRC(inode) ?
@@ -265,7 +270,7 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock,
mutex_unlock(&hip->extents_lock);
done:
- dprint(DBG_EXTENT, "get_block(%lu): %llu - %u\n",
+ hfs_dbg(EXTENT, "get_block(%lu): %llu - %u\n",
inode->i_ino, (long long)iblock, dblock);
mask = (1 << sbi->fs_shift) - 1;
@@ -288,11 +293,12 @@ static void hfsplus_dump_extent(struct hfsplus_extent *extent)
{
int i;
- dprint(DBG_EXTENT, " ");
+ hfs_dbg(EXTENT, " ");
for (i = 0; i < 8; i++)
- dprint(DBG_EXTENT, " %u:%u", be32_to_cpu(extent[i].start_block),
- be32_to_cpu(extent[i].block_count));
- dprint(DBG_EXTENT, "\n");
+ hfs_dbg_cont(EXTENT, " %u:%u",
+ be32_to_cpu(extent[i].start_block),
+ be32_to_cpu(extent[i].block_count));
+ hfs_dbg_cont(EXTENT, "\n");
}
static int hfsplus_add_extent(struct hfsplus_extent *extent, u32 offset,
@@ -348,8 +354,8 @@ found:
if (count <= block_nr) {
err = hfsplus_block_free(sb, start, count);
if (err) {
- printk(KERN_ERR "hfs: can't free extent\n");
- dprint(DBG_EXTENT, " start: %u count: %u\n",
+ pr_err("can't free extent\n");
+ hfs_dbg(EXTENT, " start: %u count: %u\n",
start, count);
}
extent->block_count = 0;
@@ -359,8 +365,8 @@ found:
count -= block_nr;
err = hfsplus_block_free(sb, start + count, block_nr);
if (err) {
- printk(KERN_ERR "hfs: can't free extent\n");
- dprint(DBG_EXTENT, " start: %u count: %u\n",
+ pr_err("can't free extent\n");
+ hfs_dbg(EXTENT, " start: %u count: %u\n",
start, count);
}
extent->block_count = cpu_to_be32(count);
@@ -432,7 +438,7 @@ int hfsplus_file_extend(struct inode *inode)
if (sbi->alloc_file->i_size * 8 <
sbi->total_blocks - sbi->free_blocks + 8) {
/* extend alloc file */
- printk(KERN_ERR "hfs: extend alloc file! "
+ pr_err("extend alloc file! "
"(%llu,%u,%u)\n",
sbi->alloc_file->i_size * 8,
sbi->total_blocks, sbi->free_blocks);
@@ -459,11 +465,11 @@ int hfsplus_file_extend(struct inode *inode)
}
}
- dprint(DBG_EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
+ hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
if (hip->alloc_blocks <= hip->first_blocks) {
if (!hip->first_blocks) {
- dprint(DBG_EXTENT, "first extents\n");
+ hfs_dbg(EXTENT, "first extents\n");
/* no extents yet */
hip->first_extents[0].start_block = cpu_to_be32(start);
hip->first_extents[0].block_count = cpu_to_be32(len);
@@ -500,7 +506,7 @@ out:
return res;
insert_extent:
- dprint(DBG_EXTENT, "insert new extent\n");
+ hfs_dbg(EXTENT, "insert new extent\n");
res = hfsplus_ext_write_extent_locked(inode);
if (res)
goto out;
@@ -525,9 +531,8 @@ void hfsplus_file_truncate(struct inode *inode)
u32 alloc_cnt, blk_cnt, start;
int res;
- dprint(DBG_INODE, "truncate: %lu, %llu -> %llu\n",
- inode->i_ino, (long long)hip->phys_size,
- inode->i_size);
+ hfs_dbg(INODE, "truncate: %lu, %llu -> %llu\n",
+ inode->i_ino, (long long)hip->phys_size, inode->i_size);
if (inode->i_size > hip->phys_size) {
struct address_space *mapping = inode->i_mapping;
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 05b11f36024..60b0a3388b2 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -10,6 +10,12 @@
#ifndef _LINUX_HFSPLUS_FS_H
#define _LINUX_HFSPLUS_FS_H
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/buffer_head.h>
@@ -32,9 +38,17 @@
#endif
#define DBG_MASK (0)
-#define dprint(flg, fmt, args...) \
- if (flg & DBG_MASK) \
- printk(fmt , ## args)
+#define hfs_dbg(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
+} while (0)
+
+#define hfs_dbg_cont(flg, fmt, ...) \
+do { \
+ if (DBG_##flg & DBG_MASK) \
+ pr_cont(fmt, ##__VA_ARGS__); \
+} while (0)
/* Runtime config options */
#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 160ccc9cdb4..7faaa964968 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -357,7 +357,7 @@ int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
if (!error)
error = error2;
} else {
- printk(KERN_ERR "hfs: sync non-existent attributes tree\n");
+ pr_err("sync non-existent attributes tree\n");
}
}
@@ -573,7 +573,7 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
HFSPLUS_I(inode)->create_date = file->create_date;
} else {
- printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
+ pr_err("bad catalog entry used to create inode\n");
res = -EIO;
}
return res;
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index ed257c67161..968eab5bc1f 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -113,67 +113,67 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi)
switch (token) {
case opt_creator:
if (match_fourchar(&args[0], &sbi->creator)) {
- printk(KERN_ERR "hfs: creator requires a 4 character value\n");
+ pr_err("creator requires a 4 character value\n");
return 0;
}
break;
case opt_type:
if (match_fourchar(&args[0], &sbi->type)) {
- printk(KERN_ERR "hfs: type requires a 4 character value\n");
+ pr_err("type requires a 4 character value\n");
return 0;
}
break;
case opt_umask:
if (match_octal(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: umask requires a value\n");
+ pr_err("umask requires a value\n");
return 0;
}
sbi->umask = (umode_t)tmp;
break;
case opt_uid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: uid requires an argument\n");
+ pr_err("uid requires an argument\n");
return 0;
}
sbi->uid = make_kuid(current_user_ns(), (uid_t)tmp);
if (!uid_valid(sbi->uid)) {
- printk(KERN_ERR "hfs: invalid uid specified\n");
+ pr_err("invalid uid specified\n");
return 0;
}
break;
case opt_gid:
if (match_int(&args[0], &tmp)) {
- printk(KERN_ERR "hfs: gid requires an argument\n");
+ pr_err("gid requires an argument\n");
return 0;
}
sbi->gid = make_kgid(current_user_ns(), (gid_t)tmp);
if (!gid_valid(sbi->gid)) {
- printk(KERN_ERR "hfs: invalid gid specified\n");
+ pr_err("invalid gid specified\n");
return 0;
}
break;
case opt_part:
if (match_int(&args[0], &sbi->part)) {
- printk(KERN_ERR "hfs: part requires an argument\n");
+ pr_err("part requires an argument\n");
return 0;
}
break;
case opt_session:
if (match_int(&args[0], &sbi->session)) {
- printk(KERN_ERR "hfs: session requires an argument\n");
+ pr_err("session requires an argument\n");
return 0;
}
break;
case opt_nls:
if (sbi->nls) {
- printk(KERN_ERR "hfs: unable to change nls mapping\n");
+ pr_err("unable to change nls mapping\n");
return 0;
}
p = match_strdup(&args[0]);
if (p)
sbi->nls = load_nls(p);
if (!sbi->nls) {
- printk(KERN_ERR "hfs: unable to load "
+ pr_err("unable to load "
"nls mapping \"%s\"\n",
p);
kfree(p);
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 7b87284e46d..4c4d142cf89 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -132,7 +132,7 @@ static int hfsplus_system_write_inode(struct inode *inode)
if (tree) {
int err = hfs_btree_write(tree);
if (err) {
- printk(KERN_ERR "hfs: b-tree write err: %d, ino %lu\n",
+ pr_err("b-tree write err: %d, ino %lu\n",
err, inode->i_ino);
return err;
}
@@ -145,7 +145,7 @@ static int hfsplus_write_inode(struct inode *inode,
{
int err;
- dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);
+ hfs_dbg(INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);
err = hfsplus_ext_write_extent(inode);
if (err)
@@ -160,7 +160,7 @@ static int hfsplus_write_inode(struct inode *inode,
static void hfsplus_evict_inode(struct inode *inode)
{
- dprint(DBG_INODE, "hfsplus_evict_inode: %lu\n", inode->i_ino);
+ hfs_dbg(INODE, "hfsplus_evict_inode: %lu\n", inode->i_ino);
truncate_inode_pages(&inode->i_data, 0);
clear_inode(inode);
if (HFSPLUS_IS_RSRC(inode)) {
@@ -179,7 +179,7 @@ static int hfsplus_sync_fs(struct super_block *sb, int wait)
if (!wait)
return 0;
- dprint(DBG_SUPER, "hfsplus_sync_fs\n");
+ hfs_dbg(SUPER, "hfsplus_sync_fs\n");
/*
* Explicitly write out the special metadata inodes.
@@ -251,7 +251,7 @@ static void delayed_sync_fs(struct work_struct *work)
err = hfsplus_sync_fs(sbi->alloc_file->i_sb, 1);
if (err)
- printk(KERN_ERR "hfs: delayed sync fs err %d\n", err);
+ pr_err("delayed sync fs err %d\n", err);
}
void hfsplus_mark_mdb_dirty(struct super_block *sb)
@@ -275,7 +275,7 @@ static void hfsplus_put_super(struct super_block *sb)
{
struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
- dprint(DBG_SUPER, "hfsplus_put_super\n");
+ hfs_dbg(SUPER, "hfsplus_put_super\n");
cancel_delayed_work_sync(&sbi->sync_work);
@@ -333,25 +333,19 @@ static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
return -EINVAL;
if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
- printk(KERN_WARNING "hfs: filesystem was "
- "not cleanly unmounted, "
- "running fsck.hfsplus is recommended. "
- "leaving read-only.\n");
+ pr_warn("filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
} else if (force) {
/* nothing */
} else if (vhdr->attributes &
cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
- printk(KERN_WARNING "hfs: filesystem is marked locked, "
- "leaving read-only.\n");
+ pr_warn("filesystem is marked locked, leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
} else if (vhdr->attributes &
cpu_to_be32(HFSPLUS_VOL_JOURNALED)) {
- printk(KERN_WARNING "hfs: filesystem is "
- "marked journaled, "
- "leaving read-only.\n");
+ pr_warn("filesystem is marked journaled, leaving read-only.\n");
sb->s_flags |= MS_RDONLY;
*flags |= MS_RDONLY;
}
@@ -397,7 +391,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
err = -EINVAL;
if (!hfsplus_parse_options(data, sbi)) {
- printk(KERN_ERR "hfs: unable to parse mount options\n");
+ pr_err("unable to parse mount options\n");
goto out_unload_nls;
}
@@ -405,14 +399,14 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
nls = sbi->nls;
sbi->nls = load_nls("utf8");
if (!sbi->nls) {
- printk(KERN_ERR "hfs: unable to load nls for utf8\n");
+ pr_err("unable to load nls for utf8\n");
goto out_unload_nls;
}
/* Grab the volume header */
if (hfsplus_read_wrapper(sb)) {
if (!silent)
- printk(KERN_WARNING "hfs: unable to find HFS+ superblock\n");
+ pr_warn("unable to find HFS+ superblock\n");
goto out_unload_nls;
}
vhdr = sbi->s_vhdr;
@@ -421,7 +415,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
sb->s_magic = HFSPLUS_VOLHEAD_SIG;
if (be16_to_cpu(vhdr->version) < HFSPLUS_MIN_VERSION ||
be16_to_cpu(vhdr->version) > HFSPLUS_CURRENT_VERSION) {
- printk(KERN_ERR "hfs: wrong filesystem version\n");
+ pr_err("wrong filesystem version\n");
goto out_free_vhdr;
}
sbi->total_blocks = be32_to_cpu(vhdr->total_blocks);
@@ -445,7 +439,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
if ((last_fs_block > (sector_t)(~0ULL) >> (sbi->alloc_blksz_shift - 9)) ||
(last_fs_page > (pgoff_t)(~0ULL))) {
- printk(KERN_ERR "hfs: filesystem size too large.\n");
+ pr_err("filesystem size too large\n");
goto out_free_vhdr;
}
@@ -454,22 +448,16 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
sb->s_maxbytes = MAX_LFS_FILESIZE;
if (!(vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_UNMNT))) {
- printk(KERN_WARNING "hfs: Filesystem was "
- "not cleanly unmounted, "
- "running fsck.hfsplus is recommended. "
- "mounting read-only.\n");
+ pr_warn("Filesystem was not cleanly unmounted, running fsck.hfsplus is recommended. mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
} else if (test_and_clear_bit(HFSPLUS_SB_FORCE, &sbi->flags)) {
/* nothing */
} else if (vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_SOFTLOCK)) {
- printk(KERN_WARNING "hfs: Filesystem is marked locked, mounting read-only.\n");
+ pr_warn("Filesystem is marked locked, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
} else if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) &&
!(sb->s_flags & MS_RDONLY)) {
- printk(KERN_WARNING "hfs: write access to "
- "a journaled filesystem is not supported, "
- "use the force option at your own risk, "
- "mounting read-only.\n");
+ pr_warn("write access to a journaled filesystem is not supported, use the force option at your own risk, mounting read-only.\n");
sb->s_flags |= MS_RDONLY;
}
@@ -478,18 +466,18 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
/* Load metadata objects (B*Trees) */
sbi->ext_tree = hfs_btree_open(sb, HFSPLUS_EXT_CNID);
if (!sbi->ext_tree) {
- printk(KERN_ERR "hfs: failed to load extents file\n");
+ pr_err("failed to load extents file\n");
goto out_free_vhdr;
}
sbi->cat_tree = hfs_btree_open(sb, HFSPLUS_CAT_CNID);
if (!sbi->cat_tree) {
- printk(KERN_ERR "hfs: failed to load catalog file\n");
+ pr_err("failed to load catalog file\n");
goto out_close_ext_tree;
}
if (vhdr->attr_file.total_blocks != 0) {
sbi->attr_tree = hfs_btree_open(sb, HFSPLUS_ATTR_CNID);
if (!sbi->attr_tree) {
- printk(KERN_ERR "hfs: failed to load attributes file\n");
+ pr_err("failed to load attributes file\n");
goto out_close_cat_tree;
}
}
@@ -497,7 +485,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
inode = hfsplus_iget(sb, HFSPLUS_ALLOC_CNID);
if (IS_ERR(inode)) {
- printk(KERN_ERR "hfs: failed to load allocation file\n");
+ pr_err("failed to load allocation file\n");
err = PTR_ERR(inode);
goto out_close_attr_tree;
}
@@ -506,7 +494,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
/* Load the root directory */
root = hfsplus_iget(sb, HFSPLUS_ROOT_CNID);
if (IS_ERR(root)) {
- printk(KERN_ERR "hfs: failed to load root directory\n");
+ pr_err("failed to load root directory\n");
err = PTR_ERR(root);
goto out_put_alloc_file;
}
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 90effcccca9..b51a6079108 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -156,7 +156,7 @@ static int hfsplus_get_last_session(struct super_block *sb,
*start = (sector_t)te.cdte_addr.lba << 2;
return 0;
}
- printk(KERN_ERR "hfs: invalid session number or type of track\n");
+ pr_err("invalid session number or type of track\n");
return -EINVAL;
}
ms_info.addr_format = CDROM_LBA;
@@ -234,8 +234,7 @@ reread:
error = -EINVAL;
if (sbi->s_backup_vhdr->signature != sbi->s_vhdr->signature) {
- printk(KERN_WARNING
- "hfs: invalid secondary volume header\n");
+ pr_warn("invalid secondary volume header\n");
goto out_free_backup_vhdr;
}
@@ -259,8 +258,7 @@ reread:
blocksize >>= 1;
if (sb_set_blocksize(sb, blocksize) != blocksize) {
- printk(KERN_ERR "hfs: unable to set blocksize to %u!\n",
- blocksize);
+ pr_err("unable to set blocksize to %u!\n", blocksize);
goto out_free_backup_vhdr;
}
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index e8a4b0815c6..f66346155df 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -107,19 +107,19 @@ int __hfsplus_setxattr(struct inode *inode, const char *name,
err = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &cat_fd);
if (err) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
return err;
}
err = hfsplus_find_cat(inode->i_sb, inode->i_ino, &cat_fd);
if (err) {
- printk(KERN_ERR "hfs: catalog searching failed\n");
+ pr_err("catalog searching failed\n");
goto end_setxattr;
}
if (!strcmp_xattr_finder_info(name)) {
if (flags & XATTR_CREATE) {
- printk(KERN_ERR "hfs: xattr exists yet\n");
+ pr_err("xattr exists yet\n");
err = -EOPNOTSUPP;
goto end_setxattr;
}
@@ -165,7 +165,7 @@ int __hfsplus_setxattr(struct inode *inode, const char *name,
if (hfsplus_attr_exists(inode, name)) {
if (flags & XATTR_CREATE) {
- printk(KERN_ERR "hfs: xattr exists yet\n");
+ pr_err("xattr exists yet\n");
err = -EOPNOTSUPP;
goto end_setxattr;
}
@@ -177,7 +177,7 @@ int __hfsplus_setxattr(struct inode *inode, const char *name,
goto end_setxattr;
} else {
if (flags & XATTR_REPLACE) {
- printk(KERN_ERR "hfs: cannot replace xattr\n");
+ pr_err("cannot replace xattr\n");
err = -EOPNOTSUPP;
goto end_setxattr;
}
@@ -210,7 +210,7 @@ int __hfsplus_setxattr(struct inode *inode, const char *name,
cat_entry_flags);
hfsplus_mark_inode_dirty(inode, HFSPLUS_I_CAT_DIRTY);
} else {
- printk(KERN_ERR "hfs: invalid catalog entry type\n");
+ pr_err("invalid catalog entry type\n");
err = -EIO;
goto end_setxattr;
}
@@ -269,7 +269,7 @@ static ssize_t hfsplus_getxattr_finder_info(struct dentry *dentry,
if (size >= record_len) {
res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &fd);
if (res) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
return res;
}
res = hfsplus_find_cat(inode->i_sb, inode->i_ino, &fd);
@@ -340,13 +340,13 @@ ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
entry = hfsplus_alloc_attr_entry();
if (!entry) {
- printk(KERN_ERR "hfs: can't allocate xattr entry\n");
+ pr_err("can't allocate xattr entry\n");
return -ENOMEM;
}
res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->attr_tree, &fd);
if (res) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
goto failed_getxattr_init;
}
@@ -355,7 +355,7 @@ ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
if (res == -ENOENT)
res = -ENODATA;
else
- printk(KERN_ERR "hfs: xattr searching failed\n");
+ pr_err("xattr searching failed\n");
goto out;
}
@@ -368,17 +368,17 @@ ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
offsetof(struct hfsplus_attr_inline_data,
length));
if (record_length > HFSPLUS_MAX_INLINE_DATA_SIZE) {
- printk(KERN_ERR "hfs: invalid xattr record size\n");
+ pr_err("invalid xattr record size\n");
res = -EIO;
goto out;
}
} else if (record_type == HFSPLUS_ATTR_FORK_DATA ||
record_type == HFSPLUS_ATTR_EXTENTS) {
- printk(KERN_ERR "hfs: only inline data xattr are supported\n");
+ pr_err("only inline data xattr are supported\n");
res = -EOPNOTSUPP;
goto out;
} else {
- printk(KERN_ERR "hfs: invalid xattr record\n");
+ pr_err("invalid xattr record\n");
res = -EIO;
goto out;
}
@@ -427,7 +427,7 @@ static ssize_t hfsplus_listxattr_finder_info(struct dentry *dentry,
res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &fd);
if (res) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
return res;
}
@@ -506,7 +506,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
err = hfs_find_init(HFSPLUS_SB(inode->i_sb)->attr_tree, &fd);
if (err) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
return err;
}
@@ -525,8 +525,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
for (;;) {
key_len = hfs_bnode_read_u16(fd.bnode, fd.keyoffset);
if (key_len == 0 || key_len > fd.tree->max_key_len) {
- printk(KERN_ERR "hfs: invalid xattr key length: %d\n",
- key_len);
+ pr_err("invalid xattr key length: %d\n", key_len);
res = -EIO;
goto end_listxattr;
}
@@ -541,7 +540,7 @@ ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size)
if (hfsplus_uni2asc(inode->i_sb,
(const struct hfsplus_unistr *)&fd.key->attr.key_name,
strbuf, &xattr_name_len)) {
- printk(KERN_ERR "hfs: unicode conversion failed\n");
+ pr_err("unicode conversion failed\n");
res = -EIO;
goto end_listxattr;
}
@@ -598,13 +597,13 @@ int hfsplus_removexattr(struct dentry *dentry, const char *name)
err = hfs_find_init(HFSPLUS_SB(inode->i_sb)->cat_tree, &cat_fd);
if (err) {
- printk(KERN_ERR "hfs: can't init xattr find struct\n");
+ pr_err("can't init xattr find struct\n");
return err;
}
err = hfsplus_find_cat(inode->i_sb, inode->i_ino, &cat_fd);
if (err) {
- printk(KERN_ERR "hfs: catalog searching failed\n");
+ pr_err("catalog searching failed\n");
goto end_removexattr;
}
@@ -643,7 +642,7 @@ int hfsplus_removexattr(struct dentry *dentry, const char *name)
flags);
hfsplus_mark_inode_dirty(inode, HFSPLUS_I_CAT_DIRTY);
} else {
- printk(KERN_ERR "hfs: invalid catalog entry type\n");
+ pr_err("invalid catalog entry type\n");
err = -EIO;
goto end_removexattr;
}
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 6b49f14eac8..cf02f553071 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -175,6 +175,11 @@ static int nilfs_writepages(struct address_space *mapping,
struct inode *inode = mapping->host;
int err = 0;
+ if (inode->i_sb->s_flags & MS_RDONLY) {
+ nilfs_clear_dirty_pages(mapping, false);
+ return -EROFS;
+ }
+
if (wbc->sync_mode == WB_SYNC_ALL)
err = nilfs_construct_dsync_segment(inode->i_sb, inode,
wbc->range_start,
@@ -187,6 +192,18 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
struct inode *inode = page->mapping->host;
int err;
+ if (inode->i_sb->s_flags & MS_RDONLY) {
+ /*
+ * It means that filesystem was remounted in read-only
+ * mode because of error or metadata corruption. But we
+ * have dirty pages that try to be flushed in background.
+ * So, here we simply discard this dirty page.
+ */
+ nilfs_clear_dirty_page(page, false);
+ unlock_page(page);
+ return -EROFS;
+ }
+
redirty_page_for_writepage(wbc, page);
unlock_page(page);
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index f9897d09c69..c4dcd1db57e 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -375,14 +375,25 @@ int nilfs_mdt_fetch_dirty(struct inode *inode)
static int
nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc)
{
- struct inode *inode;
+ struct inode *inode = page->mapping->host;
struct super_block *sb;
int err = 0;
+ if (inode && (inode->i_sb->s_flags & MS_RDONLY)) {
+ /*
+ * It means that filesystem was remounted in read-only
+ * mode because of error or metadata corruption. But we
+ * have dirty pages that try to be flushed in background.
+ * So, here we simply discard this dirty page.
+ */
+ nilfs_clear_dirty_page(page, false);
+ unlock_page(page);
+ return -EROFS;
+ }
+
redirty_page_for_writepage(wbc, page);
unlock_page(page);
- inode = page->mapping->host;
if (!inode)
return 0;
@@ -561,10 +572,10 @@ void nilfs_mdt_restore_from_shadow_map(struct inode *inode)
if (mi->mi_palloc_cache)
nilfs_palloc_clear_cache(inode);
- nilfs_clear_dirty_pages(inode->i_mapping);
+ nilfs_clear_dirty_pages(inode->i_mapping, true);
nilfs_copy_back_pages(inode->i_mapping, &shadow->frozen_data);
- nilfs_clear_dirty_pages(&ii->i_btnode_cache);
+ nilfs_clear_dirty_pages(&ii->i_btnode_cache, true);
nilfs_copy_back_pages(&ii->i_btnode_cache, &shadow->frozen_btnodes);
nilfs_bmap_restore(ii->i_bmap, &shadow->bmap_store);
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 07f76db04ec..0ba679866e5 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -370,7 +370,12 @@ repeat:
goto repeat;
}
-void nilfs_clear_dirty_pages(struct address_space *mapping)
+/**
+ * nilfs_clear_dirty_pages - discard dirty pages in address space
+ * @mapping: address space with dirty pages for discarding
+ * @silent: suppress [true] or print [false] warning messages
+ */
+void nilfs_clear_dirty_pages(struct address_space *mapping, bool silent)
{
struct pagevec pvec;
unsigned int i;
@@ -382,25 +387,9 @@ void nilfs_clear_dirty_pages(struct address_space *mapping)
PAGEVEC_SIZE)) {
for (i = 0; i < pagevec_count(&pvec); i++) {
struct page *page = pvec.pages[i];
- struct buffer_head *bh, *head;
lock_page(page);
- ClearPageUptodate(page);
- ClearPageMappedToDisk(page);
- bh = head = page_buffers(page);
- do {
- lock_buffer(bh);
- clear_buffer_dirty(bh);
- clear_buffer_nilfs_volatile(bh);
- clear_buffer_nilfs_checked(bh);
- clear_buffer_nilfs_redirected(bh);
- clear_buffer_uptodate(bh);
- clear_buffer_mapped(bh);
- unlock_buffer(bh);
- bh = bh->b_this_page;
- } while (bh != head);
-
- __nilfs_clear_page_dirty(page);
+ nilfs_clear_dirty_page(page, silent);
unlock_page(page);
}
pagevec_release(&pvec);
@@ -408,6 +397,51 @@ void nilfs_clear_dirty_pages(struct address_space *mapping)
}
}
+/**
+ * nilfs_clear_dirty_page - discard dirty page
+ * @page: dirty page that will be discarded
+ * @silent: suppress [true] or print [false] warning messages
+ */
+void nilfs_clear_dirty_page(struct page *page, bool silent)
+{
+ struct inode *inode = page->mapping->host;
+ struct super_block *sb = inode->i_sb;
+
+ BUG_ON(!PageLocked(page));
+
+ if (!silent) {
+ nilfs_warning(sb, __func__,
+ "discard page: offset %lld, ino %lu",
+ page_offset(page), inode->i_ino);
+ }
+
+ ClearPageUptodate(page);
+ ClearPageMappedToDisk(page);
+
+ if (page_has_buffers(page)) {
+ struct buffer_head *bh, *head;
+
+ bh = head = page_buffers(page);
+ do {
+ lock_buffer(bh);
+ if (!silent) {
+ nilfs_warning(sb, __func__,
+ "discard block %llu, size %zu",
+ (u64)bh->b_blocknr, bh->b_size);
+ }
+ clear_buffer_dirty(bh);
+ clear_buffer_nilfs_volatile(bh);
+ clear_buffer_nilfs_checked(bh);
+ clear_buffer_nilfs_redirected(bh);
+ clear_buffer_uptodate(bh);
+ clear_buffer_mapped(bh);
+ unlock_buffer(bh);
+ } while (bh = bh->b_this_page, bh != head);
+ }
+
+ __nilfs_clear_page_dirty(page);
+}
+
unsigned nilfs_page_count_clean_buffers(struct page *page,
unsigned from, unsigned to)
{
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index fb7de71605a..ef30c5c2426 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -55,7 +55,8 @@ void nilfs_page_bug(struct page *);
int nilfs_copy_dirty_pages(struct address_space *, struct address_space *);
void nilfs_copy_back_pages(struct address_space *, struct address_space *);
-void nilfs_clear_dirty_pages(struct address_space *);
+void nilfs_clear_dirty_page(struct page *, bool);
+void nilfs_clear_dirty_pages(struct address_space *, bool);
void nilfs_mapping_init(struct address_space *mapping, struct inode *inode,
struct backing_dev_info *bdi);
unsigned nilfs_page_count_clean_buffers(struct page *, unsigned, unsigned);
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 8562bd3af94..c616a70e8cf 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -570,7 +570,6 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
int add = (arg & IN_MASK_ADD);
int ret;
- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
fsn_mark = fsnotify_find_inode_mark(group, inode);
@@ -621,7 +620,6 @@ static int inotify_new_watch(struct fsnotify_group *group,
struct idr *idr = &group->inotify_data.idr;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
tmp_i_mark = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
@@ -747,6 +745,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
int ret;
unsigned flags = 0;
+ /* don't allow invalid bits: we don't want flags set */
+ if (unlikely(!(mask & ALL_INOTIFY_BITS)))
+ return -EINVAL;
+
f = fdget(fd);
if (unlikely(!f.file))
return -EBADF;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index a1930860414..3861bcec41f 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1348,11 +1348,10 @@ static ssize_t comm_write(struct file *file, const char __user *buf,
struct inode *inode = file_inode(file);
struct task_struct *p;
char buffer[TASK_COMM_LEN];
+ const size_t maxlen = sizeof(buffer) - 1;
memset(buffer, 0, sizeof(buffer));
- if (count > sizeof(buffer) - 1)
- count = sizeof(buffer) - 1;
- if (copy_from_user(buffer, buf, count))
+ if (copy_from_user(buffer, buf, count > maxlen ? maxlen : count))
return -EFAULT;
p = get_proc_task(inode);