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-rw-r--r--fs/f2fs/file.c7
-rw-r--r--fs/f2fs/inode.c13
-rw-r--r--fs/f2fs/namei.c3
-rw-r--r--fs/f2fs/super.c5
-rw-r--r--include/trace/events/f2fs.h195
5 files changed, 219 insertions, 4 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 07be88ddb9f..0b0ba26ba76 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -25,6 +25,7 @@
#include "segment.h"
#include "xattr.h"
#include "acl.h"
+#include <trace/events/f2fs.h>
static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
struct vm_fault *vmf)
@@ -116,9 +117,12 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
+ trace_f2fs_sync_file_enter(inode);
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret)
+ if (ret) {
+ trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
+ }
/* guarantee free sections for fsync */
f2fs_balance_fs(sbi);
@@ -153,6 +157,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
}
out:
mutex_unlock(&inode->i_mutex);
+ trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
return ret;
}
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 60105b71095..91ac7f9d88e 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -16,6 +16,8 @@
#include "f2fs.h"
#include "node.h"
+#include <trace/events/f2fs.h>
+
void f2fs_set_inode_flags(struct inode *inode)
{
unsigned int flags = F2FS_I(inode)->i_flags;
@@ -91,13 +93,16 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
struct inode *inode;
- int ret;
+ int ret = 0;
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW))
+
+ if (!(inode->i_state & I_NEW)) {
+ trace_f2fs_iget(inode);
return inode;
+ }
if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
goto make_now;
@@ -139,11 +144,12 @@ make_now:
goto bad_inode;
}
unlock_new_inode(inode);
-
+ trace_f2fs_iget(inode);
return inode;
bad_inode:
iget_failed(inode);
+ trace_f2fs_iget_exit(inode, ret);
return ERR_PTR(ret);
}
@@ -239,6 +245,7 @@ void f2fs_evict_inode(struct inode *inode)
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
int ilock;
+ trace_f2fs_evict_inode(inode);
truncate_inode_pages(&inode->i_data, 0);
if (inode->i_ino == F2FS_NODE_INO(sbi) ||
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 1dbf11d2bc8..c57fd18b769 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -18,6 +18,7 @@
#include "node.h"
#include "xattr.h"
#include "acl.h"
+#include <trace/events/f2fs.h>
static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
{
@@ -235,6 +236,7 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
int err = -ENOENT;
int ilock;
+ trace_f2fs_unlink_enter(dir, dentry);
f2fs_balance_fs(sbi);
de = f2fs_find_entry(dir, &dentry->d_name, &page);
@@ -255,6 +257,7 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
/* In order to evict this inode, we set it dirty */
mark_inode_dirty(inode);
fail:
+ trace_f2fs_unlink_exit(inode, err);
return err;
}
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 541f21ffd8f..b015b6cd7bd 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -29,6 +29,9 @@
#include "segment.h"
#include "xattr.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/f2fs.h>
+
static struct kmem_cache *f2fs_inode_cachep;
enum {
@@ -134,6 +137,8 @@ int f2fs_sync_fs(struct super_block *sb, int sync)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ trace_f2fs_sync_fs(sb, sync);
+
if (!sbi->s_dirty && !get_pages(sbi, F2FS_DIRTY_NODES))
return 0;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
new file mode 100644
index 00000000000..03bb0dbf468
--- /dev/null
+++ b/include/trace/events/f2fs.h
@@ -0,0 +1,195 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM f2fs
+
+#if !defined(_TRACE_F2FS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_F2FS_H
+
+#include <linux/tracepoint.h>
+
+#define show_dev(entry) MAJOR(entry->dev), MINOR(entry->dev)
+#define show_dev_ino(entry) show_dev(entry), (unsigned long)entry->ino
+
+DECLARE_EVENT_CLASS(f2fs__inode,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(ino_t, pino)
+ __field(umode_t, mode)
+ __field(loff_t, size)
+ __field(unsigned int, nlink)
+ __field(blkcnt_t, blocks)
+ __field(__u8, advise)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->pino = F2FS_I(inode)->i_pino;
+ __entry->mode = inode->i_mode;
+ __entry->nlink = inode->i_nlink;
+ __entry->size = inode->i_size;
+ __entry->blocks = inode->i_blocks;
+ __entry->advise = F2FS_I(inode)->i_advise;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, pino = %lu, i_mode = 0x%hx, "
+ "i_size = %lld, i_nlink = %u, i_blocks = %llu, i_advise = 0x%x",
+ show_dev_ino(__entry),
+ (unsigned long)__entry->pino,
+ __entry->mode,
+ __entry->size,
+ (unsigned int)__entry->nlink,
+ (unsigned long long)__entry->blocks,
+ (unsigned char)__entry->advise)
+);
+
+DECLARE_EVENT_CLASS(f2fs__inode_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, ret = %d",
+ show_dev_ino(__entry),
+ __entry->ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_sync_file_enter,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_sync_file_exit,
+
+ TP_PROTO(struct inode *inode, bool need_cp, int datasync, int ret),
+
+ TP_ARGS(inode, need_cp, datasync, ret),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(bool, need_cp)
+ __field(int, datasync)
+ __field(int, ret)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->need_cp = need_cp;
+ __entry->datasync = datasync;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("dev = (%d,%d), ino = %lu, checkpoint is %s, "
+ "datasync = %d, ret = %d",
+ show_dev_ino(__entry),
+ __entry->need_cp ? "needed" : "not needed",
+ __entry->datasync,
+ __entry->ret)
+);
+
+TRACE_EVENT(f2fs_sync_fs,
+
+ TP_PROTO(struct super_block *sb, int wait),
+
+ TP_ARGS(sb, wait),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(int, dirty)
+ __field(int, wait)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = sb->s_dev;
+ __entry->dirty = F2FS_SB(sb)->s_dirty;
+ __entry->wait = wait;
+ ),
+
+ TP_printk("dev = (%d,%d), superblock is %s, wait = %d",
+ show_dev(__entry),
+ __entry->dirty ? "dirty" : "not dirty",
+ __entry->wait)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_iget,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_iget_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+
+DEFINE_EVENT(f2fs__inode, f2fs_evict_inode,
+
+ TP_PROTO(struct inode *inode),
+
+ TP_ARGS(inode)
+);
+
+TRACE_EVENT(f2fs_unlink_enter,
+
+ TP_PROTO(struct inode *dir, struct dentry *dentry),
+
+ TP_ARGS(dir, dentry),
+
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(loff_t, size)
+ __field(blkcnt_t, blocks)
+ __field(const char *, name)
+ ),
+
+ TP_fast_assign(
+ __entry->dev = dir->i_sb->s_dev;
+ __entry->ino = dir->i_ino;
+ __entry->size = dir->i_size;
+ __entry->blocks = dir->i_blocks;
+ __entry->name = dentry->d_name.name;
+ ),
+
+ TP_printk("dev = (%d,%d), dir ino = %lu, i_size = %lld, "
+ "i_blocks = %llu, name = %s",
+ show_dev_ino(__entry),
+ __entry->size,
+ (unsigned long long)__entry->blocks,
+ __entry->name)
+);
+
+DEFINE_EVENT(f2fs__inode_exit, f2fs_unlink_exit,
+
+ TP_PROTO(struct inode *inode, int ret),
+
+ TP_ARGS(inode, ret)
+);
+#endif /* _TRACE_F2FS_H */
+
+ /* This part must be outside protection */
+#include <trace/define_trace.h>