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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-29 16:28:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-29 16:28:29 -0700
commit10f3291a1d7a7dc3ded403cb3caa31916364be60 (patch)
treedc642b00558988f3e6a98d33a8f8299fc88444c3
parent878e580e211c519c1b32a2c65786d308a759ec24 (diff)
parentb0108f9e93d0d39050eaa11358852f349bdccb71 (diff)
downloadlinux-stericsson-10f3291a1d7a7dc3ded403cb3caa31916364be60.tar.gz
Merge branch 'akpm' (fixes from Andrew Morton)
Merge patches from Andrew Morton: "22 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) kexec: purgatory: add clean-up for purgatory directory Documentation/kdump/kdump.txt: add ARM description flush_icache_range: export symbol to fix build errors tools: selftests: fix build issue with make kselftests target ocfs2: quorum: add a log for node not fenced ocfs2: o2net: set tcp user timeout to max value ocfs2: o2net: don't shutdown connection when idle timeout ocfs2: do not write error flag to user structure we cannot copy from/to x86/purgatory: use approprate -m64/-32 build flag for arch/x86/purgatory drivers/rtc/rtc-s5m.c: re-add support for devices without irq specified xattr: fix check for simultaneous glibc header inclusion kexec: remove CONFIG_KEXEC dependency on crypto kexec: create a new config option CONFIG_KEXEC_FILE for new syscall x86,mm: fix pte_special versus pte_numa hugetlb_cgroup: use lockdep_assert_held rather than spin_is_locked mm/zpool: use prefixed module loading zram: fix incorrect stat with failed_reads lib: turn CONFIG_STACKTRACE into an actual option. mm: actually clear pmd_numa before invalidating memblock, memhotplug: fix wrong type in memblock_find_in_range_node(). ...
-rw-r--r--Documentation/kdump/kdump.txt36
-rw-r--r--arch/arc/mm/cache_arc700.c1
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/hexagon/mm/cache.c1
-rw-r--r--arch/ia64/Kconfig2
-rw-r--r--arch/m68k/Kconfig2
-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/s390/Kconfig2
-rw-r--r--arch/sh/Kconfig2
-rw-r--r--arch/sh/mm/cache.c1
-rw-r--r--arch/tile/Kconfig2
-rw-r--r--arch/tile/kernel/smp.c1
-rw-r--r--arch/x86/Kbuild4
-rw-r--r--arch/x86/Kconfig18
-rw-r--r--arch/x86/Makefile6
-rw-r--r--arch/x86/include/asm/pgtable.h9
-rw-r--r--arch/x86/kernel/Makefile2
-rw-r--r--arch/x86/kernel/crash.c6
-rw-r--r--arch/x86/kernel/machine_kexec_64.c11
-rw-r--r--arch/x86/purgatory/Makefile6
-rw-r--r--arch/xtensa/kernel/smp.c1
-rw-r--r--drivers/block/zram/zram_drv.c10
-rw-r--r--drivers/block/zram/zram_drv.h2
-rw-r--r--drivers/rtc/rtc-s5m.c21
-rw-r--r--fs/ocfs2/cluster/quorum.c13
-rw-r--r--fs/ocfs2/cluster/tcp.c45
-rw-r--r--fs/ocfs2/cluster/tcp.h1
-rw-r--r--fs/ocfs2/ioctl.c129
-rw-r--r--include/uapi/linux/xattr.h2
-rw-r--r--kernel/kexec.c11
-rw-r--r--kernel/resource.c11
-rw-r--r--lib/Kconfig.debug7
-rw-r--r--mm/hugetlb_cgroup.c2
-rw-r--r--mm/memblock.c3
-rw-r--r--mm/memory.c7
-rw-r--r--mm/pgtable-generic.c2
-rw-r--r--mm/zbud.c1
-rw-r--r--mm/zpool.c2
-rw-r--r--mm/zsmalloc.c1
-rwxr-xr-xscripts/checkpatch.pl4
-rw-r--r--tools/testing/selftests/ipc/Makefile6
-rw-r--r--tools/testing/selftests/kcmp/Makefile6
-rw-r--r--tools/testing/selftests/memfd/Makefile10
44 files changed, 238 insertions, 177 deletions
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 88d5a863712a..6c0b9f27e465 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -18,7 +18,7 @@ memory image to a dump file on the local disk, or across the network to
a remote system.
Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
-and s390x architectures.
+s390x and arm architectures.
When the system kernel boots, it reserves a small section of memory for
the dump-capture kernel. This ensures that ongoing Direct Memory Access
@@ -112,7 +112,7 @@ There are two possible methods of using Kdump.
2) Or use the system kernel binary itself as dump-capture kernel and there is
no need to build a separate dump-capture kernel. This is possible
only with the architectures which support a relocatable kernel. As
- of today, i386, x86_64, ppc64 and ia64 architectures support relocatable
+ of today, i386, x86_64, ppc64, ia64 and arm architectures support relocatable
kernel.
Building a relocatable kernel is advantageous from the point of view that
@@ -241,6 +241,13 @@ Dump-capture kernel config options (Arch Dependent, ia64)
kernel will be aligned to 64Mb, so if the start address is not then
any space below the alignment point will be wasted.
+Dump-capture kernel config options (Arch Dependent, arm)
+----------------------------------------------------------
+
+- To use a relocatable kernel,
+ Enable "AUTO_ZRELADDR" support under "Boot" options:
+
+ AUTO_ZRELADDR=y
Extended crashkernel syntax
===========================
@@ -256,6 +263,10 @@ The syntax is:
crashkernel=<range1>:<size1>[,<range2>:<size2>,...][@offset]
range=start-[end]
+Please note, on arm, the offset is required.
+ crashkernel=<range1>:<size1>[,<range2>:<size2>,...]@offset
+ range=start-[end]
+
'start' is inclusive and 'end' is exclusive.
For example:
@@ -296,6 +307,12 @@ Boot into System Kernel
on the memory consumption of the kdump system. In general this is not
dependent on the memory size of the production system.
+ On arm, use "crashkernel=Y@X". Note that the start address of the kernel
+ will be aligned to 128MiB (0x08000000), so if the start address is not then
+ any space below the alignment point may be overwritten by the dump-capture kernel,
+ which means it is possible that the vmcore is not that precise as expected.
+
+
Load the Dump-capture Kernel
============================
@@ -315,7 +332,8 @@ For ia64:
- Use vmlinux or vmlinuz.gz
For s390x:
- Use image or bzImage
-
+For arm:
+ - Use zImage
If you are using a uncompressed vmlinux image then use following command
to load dump-capture kernel.
@@ -331,6 +349,15 @@ to load dump-capture kernel.
--initrd=<initrd-for-dump-capture-kernel> \
--append="root=<root-dev> <arch-specific-options>"
+If you are using a compressed zImage, then use following command
+to load dump-capture kernel.
+
+ kexec --type zImage -p <dump-capture-kernel-bzImage> \
+ --initrd=<initrd-for-dump-capture-kernel> \
+ --dtb=<dtb-for-dump-capture-kernel> \
+ --append="root=<root-dev> <arch-specific-options>"
+
+
Please note, that --args-linux does not need to be specified for ia64.
It is planned to make this a no-op on that architecture, but for now
it should be omitted
@@ -347,6 +374,9 @@ For ppc64:
For s390x:
"1 maxcpus=1 cgroup_disable=memory"
+For arm:
+ "1 maxcpus=1 reset_devices"
+
Notes on loading the dump-capture kernel:
* By default, the ELF headers are stored in ELF64 format to support
diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index 4670afc3b971..e88ddbf990e3 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -581,6 +581,7 @@ void flush_icache_range(unsigned long kstart, unsigned long kend)
tot_sz -= sz;
}
}
+EXPORT_SYMBOL(flush_icache_range);
/*
* General purpose helper to make I and D cache lines consistent.
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c49a775937db..32cbbd565902 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1983,8 +1983,6 @@ config XIP_PHYS_ADDR
config KEXEC
bool "Kexec system call (EXPERIMENTAL)"
depends on (!SMP || PM_SLEEP_SMP)
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/hexagon/mm/cache.c b/arch/hexagon/mm/cache.c
index fe14ccf28561..0c76c802e31c 100644
--- a/arch/hexagon/mm/cache.c
+++ b/arch/hexagon/mm/cache.c
@@ -68,6 +68,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
);
local_irq_restore(flags);
}
+EXPORT_SYMBOL(flush_icache_range);
void hexagon_clean_dcache_range(unsigned long start, unsigned long end)
{
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 64aefb76bd69..c84c88bbbbd7 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -549,8 +549,6 @@ source "drivers/sn/Kconfig"
config KEXEC
bool "kexec system call"
depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 3ff8c9a25335..87b7c7581b1d 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -91,8 +91,6 @@ config MMU_SUN3
config KEXEC
bool "kexec system call"
depends on M68KCLASSIC
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index df51e78a72cc..900c7e5333b6 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2396,8 +2396,6 @@ source "kernel/Kconfig.preempt"
config KEXEC
bool "Kexec system call"
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a577609f8ed6..4bc7b62fb4b6 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -399,8 +399,6 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
config KEXEC
bool "kexec system call"
depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index ab39ceb89ecf..05c78bb5f570 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -48,8 +48,6 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
config KEXEC
def_bool y
- select CRYPTO
- select CRYPTO_SHA256
config AUDIT_ARCH
def_bool y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index b319846ad97f..244fb4c81e25 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -598,8 +598,6 @@ source kernel/Kconfig.hz
config KEXEC
bool "kexec system call (EXPERIMENTAL)"
depends on SUPERH32 && MMU
- select CRYPTO
- select CRYPTO_SHA256
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index 097c2cdd117f..f770e3992620 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -229,6 +229,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
cacheop_on_each_cpu(local_flush_icache_range, (void *)&data, 1);
}
+EXPORT_SYMBOL(flush_icache_range);
void flush_icache_page(struct vm_area_struct *vma, struct page *page)
{
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index a3ffe2dd4832..7fcd492adbfc 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -191,8 +191,6 @@ source "kernel/Kconfig.hz"
config KEXEC
bool "kexec system call"
- select CRYPTO
- select CRYPTO_SHA256
---help---
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c
index 01e8ab29f43a..19eaa62d456a 100644
--- a/arch/tile/kernel/smp.c
+++ b/arch/tile/kernel/smp.c
@@ -183,6 +183,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
preempt_enable();
}
}
+EXPORT_SYMBOL(flush_icache_range);
/* Called when smp_send_reschedule() triggers IRQ_RESCHEDULE. */
diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index 61b6d51866f8..3942f74c92d7 100644
--- a/arch/x86/Kbuild
+++ b/arch/x86/Kbuild
@@ -17,6 +17,4 @@ obj-$(CONFIG_IA32_EMULATION) += ia32/
obj-y += platform/
obj-y += net/
-ifeq ($(CONFIG_X86_64),y)
-obj-$(CONFIG_KEXEC) += purgatory/
-endif
+obj-$(CONFIG_KEXEC_FILE) += purgatory/
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5d0bf1aa9dcb..778178f4c7d1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1585,9 +1585,6 @@ source kernel/Kconfig.hz
config KEXEC
bool "kexec system call"
- select BUILD_BIN2C
- select CRYPTO
- select CRYPTO_SHA256
---help---
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
@@ -1602,9 +1599,22 @@ config KEXEC
interface is strongly in flux, so no good recommendation can be
made.
+config KEXEC_FILE
+ bool "kexec file based system call"
+ select BUILD_BIN2C
+ depends on KEXEC
+ depends on X86_64
+ depends on CRYPTO=y
+ depends on CRYPTO_SHA256=y
+ ---help---
+ This is new version of kexec system call. This system call is
+ file based and takes file descriptors as system call argument
+ for kernel and initramfs as opposed to list of segments as
+ accepted by previous system call.
+
config KEXEC_VERIFY_SIG
bool "Verify kernel signature during kexec_file_load() syscall"
- depends on KEXEC
+ depends on KEXEC_FILE
---help---
This option makes kernel signature verification mandatory for
kexec_file_load() syscall. If kernel is signature can not be
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index c1aa36887843..60087ca37679 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -184,11 +184,8 @@ archheaders:
$(Q)$(MAKE) $(build)=arch/x86/syscalls all
archprepare:
-ifeq ($(CONFIG_KEXEC),y)
-# Build only for 64bit. No loaders for 32bit yet.
- ifeq ($(CONFIG_X86_64),y)
+ifeq ($(CONFIG_KEXEC_FILE),y)
$(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
- endif
endif
###
@@ -254,6 +251,7 @@ archclean:
$(Q)rm -rf $(objtree)/arch/x86_64
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)$(MAKE) $(clean)=arch/x86/tools
+ $(Q)$(MAKE) $(clean)=arch/x86/purgatory
PHONY += kvmconfig
kvmconfig:
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 0ec056012618..aa97a070f09f 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -131,8 +131,13 @@ static inline int pte_exec(pte_t pte)
static inline int pte_special(pte_t pte)
{
- return (pte_flags(pte) & (_PAGE_PRESENT|_PAGE_SPECIAL)) ==
- (_PAGE_PRESENT|_PAGE_SPECIAL);
+ /*
+ * See CONFIG_NUMA_BALANCING pte_numa in include/asm-generic/pgtable.h.
+ * On x86 we have _PAGE_BIT_NUMA == _PAGE_BIT_GLOBAL+1 ==
+ * __PAGE_BIT_SOFTW1 == _PAGE_BIT_SPECIAL.
+ */
+ return (pte_flags(pte) & _PAGE_SPECIAL) &&
+ (pte_flags(pte) & (_PAGE_PRESENT|_PAGE_PROTNONE));
}
static inline unsigned long pte_pfn(pte_t pte)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index b5ea75c4a4b4..ada2e2d6be3e 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -71,6 +71,7 @@ obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
obj-$(CONFIG_X86_TSC) += trace_clock.o
obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
+obj-$(CONFIG_KEXEC_FILE) += kexec-bzimage64.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
obj-y += kprobes/
obj-$(CONFIG_MODULES) += module.o
@@ -118,5 +119,4 @@ ifeq ($(CONFIG_X86_64),y)
obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o
obj-y += vsmp_64.o
- obj-$(CONFIG_KEXEC) += kexec-bzimage64.o
endif
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 0553a34fa0df..a618fcd2c07d 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -182,8 +182,7 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
crash_save_cpu(regs, safe_smp_processor_id());
}
-#ifdef CONFIG_X86_64
-
+#ifdef CONFIG_KEXEC_FILE
static int get_nr_ram_ranges_callback(unsigned long start_pfn,
unsigned long nr_pfn, void *arg)
{
@@ -696,5 +695,4 @@ int crash_load_segments(struct kimage *image)
return ret;
}
-
-#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_KEXEC_FILE */
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 8b04018e5d1f..485981059a40 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -25,9 +25,11 @@
#include <asm/debugreg.h>
#include <asm/kexec-bzimage64.h>
+#ifdef CONFIG_KEXEC_FILE
static struct kexec_file_ops *kexec_file_loaders[] = {
&kexec_bzImage64_ops,
};
+#endif
static void free_transition_pgtable(struct kimage *image)
{
@@ -178,6 +180,7 @@ static void load_segments(void)
);
}
+#ifdef CONFIG_KEXEC_FILE
/* Update purgatory as needed after various image segments have been prepared */
static int arch_update_purgatory(struct kimage *image)
{
@@ -209,6 +212,12 @@ static int arch_update_purgatory(struct kimage *image)
return ret;
}
+#else /* !CONFIG_KEXEC_FILE */
+static inline int arch_update_purgatory(struct kimage *image)
+{
+ return 0;
+}
+#endif /* CONFIG_KEXEC_FILE */
int machine_kexec_prepare(struct kimage *image)
{
@@ -329,6 +338,7 @@ void arch_crash_save_vmcoreinfo(void)
/* arch-dependent functionality related to kexec file-based syscall */
+#ifdef CONFIG_KEXEC_FILE
int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
unsigned long buf_len)
{
@@ -522,3 +532,4 @@ overflow:
(int)ELF64_R_TYPE(rel[i].r_info), value);
return -ENOEXEC;
}
+#endif /* CONFIG_KEXEC_FILE */
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 7fde9ee438a4..899dd2454256 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -11,6 +11,7 @@ targets += purgatory.ro
# sure how to relocate those. Like kexec-tools, use custom flags.
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes -fno-zero-initialized-in-bss -fno-builtin -ffreestanding -c -MD -Os -mcmodel=large
+KBUILD_CFLAGS += -m$(BITS)
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
@@ -24,7 +25,4 @@ $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
$(call if_changed,bin2c)
-# No loaders for 32bits yet.
-ifeq ($(CONFIG_X86_64),y)
- obj-$(CONFIG_KEXEC) += kexec-purgatory.o
-endif
+obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index 40b5a3771fb0..4d02e38514f5 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -571,6 +571,7 @@ void flush_icache_range(unsigned long start, unsigned long end)
};
on_each_cpu(ipi_flush_icache_range, &fd, 1);
}
+EXPORT_SYMBOL(flush_icache_range);
/* ------------------------------------------------------------------------- */
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index dfa4024c448a..d00831c3d731 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -378,7 +378,6 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index)
/* Should NEVER happen. Return bio error if it does. */
if (unlikely(ret)) {
pr_err("Decompression failed! err=%d, page=%u\n", ret, index);
- atomic64_inc(&zram->stats.failed_reads);
return ret;
}
@@ -547,8 +546,6 @@ out:
zcomp_strm_release(zram->comp, zstrm);
if (is_partial_io(bvec))
kfree(uncmem);
- if (ret)
- atomic64_inc(&zram->stats.failed_writes);
return ret;
}
@@ -566,6 +563,13 @@ static int zram_bvec_rw(struct zram *zram, struct bio_vec *bvec, u32 index,
ret = zram_bvec_write(zram, bvec, index, offset);
}
+ if (unlikely(ret)) {
+ if (rw == READ)
+ atomic64_inc(&zram->stats.failed_reads);
+ else
+ atomic64_inc(&zram->stats.failed_writes);
+ }
+
return ret;
}
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index 5b0afde729cd..e0f725c87cc6 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -84,7 +84,7 @@ struct zram_stats {
atomic64_t compr_data_size; /* compressed size of pages stored */
atomic64_t num_reads; /* failed + successful */
atomic64_t num_writes; /* --do-- */
- atomic64_t failed_reads; /* should NEVER! happen */
+ atomic64_t failed_reads; /* can happen when memory is too low */
atomic64_t failed_writes; /* can happen when memory is too low */
atomic64_t invalid_io; /* non-page-aligned I/O requests */
atomic64_t notify_free; /* no. of swap slot free notifications */
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 8f06250a0389..8754c33361e8 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -717,12 +717,14 @@ static int s5m_rtc_probe(struct platform_device *pdev)
info->device_type = s5m87xx->device_type;
info->wtsr_smpl = s5m87xx->wtsr_smpl;
- info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
- if (info->irq <= 0) {
- ret = -EINVAL;
- dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
+ if (s5m87xx->irq_data) {
+ info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
+ if (info->irq <= 0) {
+ ret = -EINVAL;
+ dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
alarm_irq);
- goto err;
+ goto err;
+ }
}
platform_set_drvdata(pdev, info);
@@ -744,6 +746,11 @@ static int s5m_rtc_probe(struct platform_device *pdev)
goto err;
}
+ if (!info->irq) {
+ dev_info(&pdev->dev, "Alarm IRQ not available\n");
+ return 0;
+ }
+
ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
s5m_rtc_alarm_irq, 0, "rtc-alarm0",
info);
@@ -802,7 +809,7 @@ static int s5m_rtc_resume(struct device *dev)
struct s5m_rtc_info *info = dev_get_drvdata(dev);
int ret = 0;
- if (device_may_wakeup(dev))
+ if (info->irq && device_may_wakeup(dev))
ret = disable_irq_wake(info->irq);
return ret;
@@ -813,7 +820,7 @@ static int s5m_rtc_suspend(struct device *dev)
struct s5m_rtc_info *info = dev_get_drvdata(dev);
int ret = 0;
- if (device_may_wakeup(dev))
+ if (info->irq && device_may_wakeup(dev))
ret = enable_irq_wake(info->irq);
return ret;
diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c
index 1ec141e758d7..62e8ec619b4c 100644
--- a/fs/ocfs2/cluster/quorum.c
+++ b/fs/ocfs2/cluster/quorum.c
@@ -160,9 +160,18 @@ static void o2quo_make_decision(struct work_struct *work)
}
out:
- spin_unlock(&qs->qs_lock);
- if (fence)
+ if (fence) {
+ spin_unlock(&qs->qs_lock);
o2quo_fence_self();
+ } else {
+ mlog(ML_NOTICE, "not fencing this node, heartbeating: %d, "
+ "connected: %d, lowest: %d (%sreachable)\n",
+ qs->qs_heartbeating, qs->qs_connected, lowest_hb,
+ lowest_reachable ? "" : "un");
+ spin_unlock(&qs->qs_lock);
+
+ }
+
}
static void o2quo_set_hold(struct o2quo_state *qs, u8 node)
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 681691bc233a..ea34952f9496 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1480,6 +1480,14 @@ static int o2net_set_nodelay(struct socket *sock)
return ret;
}
+static int o2net_set_usertimeout(struct socket *sock)
+{
+ int user_timeout = O2NET_TCP_USER_TIMEOUT;
+
+ return kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT,
+ (char *)&user_timeout, sizeof(user_timeout));
+}
+
static void o2net_initialize_handshake(void)
{
o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32(
@@ -1536,16 +1544,20 @@ static void o2net_idle_timer(unsigned long data)
#endif
printk(KERN_NOTICE "o2net: Connection to " SC_NODEF_FMT " has been "
- "idle for %lu.%lu secs, shutting it down.\n", SC_NODEF_ARGS(sc),
- msecs / 1000, msecs % 1000);
+ "idle for %lu.%lu secs.\n",
+ SC_NODEF_ARGS(sc), msecs / 1000, msecs % 1000);
- /*
- * Initialize the nn_timeout so that the next connection attempt
- * will continue in o2net_start_connect.
+ /* idle timerout happen, don't shutdown the connection, but
+ * make fence decision. Maybe the connection can recover before
+ * the decision is made.
*/
atomic_set(&nn->nn_timeout, 1);
+ o2quo_conn_err(o2net_num_from_nn(nn));
+ queue_delayed_work(o2net_wq, &nn->nn_still_up,
+ msecs_to_jiffies(O2NET_QUORUM_DELAY_MS));
+
+ o2net_sc_reset_idle_timer(sc);
- o2net_sc_queue_work(sc, &sc->sc_shutdown_work);
}
static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
@@ -1560,6 +1572,15 @@ static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
{
+ struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
+
+ /* clear fence decision since the connection recover from timeout*/
+ if (atomic_read(&nn->nn_timeout)) {
+ o2quo_conn_up(o2net_num_from_nn(nn));
+ cancel_delayed_work(&nn->nn_still_up);
+ atomic_set(&nn->nn_timeout, 0);
+ }
+
/* Only push out an existing timer */
if (timer_pending(&sc->sc_idle_timeout))
o2net_sc_reset_idle_timer(sc);
@@ -1650,6 +1671,12 @@ static void o2net_start_connect(struct work_struct *work)
goto out;
}
+ ret = o2net_set_usertimeout(sock);
+ if (ret) {
+ mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+ goto out;
+ }
+
o2net_register_callbacks(sc->sc_sock->sk, sc);
spin_lock(&nn->nn_lock);
@@ -1831,6 +1858,12 @@ static int o2net_accept_one(struct socket *sock, int *more)
goto out;
}
+ ret = o2net_set_usertimeout(new_sock);
+ if (ret) {
+ mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret);
+ goto out;
+ }
+
slen = sizeof(sin);
ret = new_sock->ops->getname(new_sock, (struct sockaddr *) &sin,
&slen, 1);
diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h
index 5bada2a69b50..c571e849fda4 100644
--- a/fs/ocfs2/cluster/tcp.h
+++ b/fs/ocfs2/cluster/tcp.h
@@ -63,6 +63,7 @@ typedef void (o2net_post_msg_handler_func)(int status, void *data,
#define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 2000
#define O2NET_IDLE_TIMEOUT_MS_DEFAULT 30000
+#define O2NET_TCP_USER_TIMEOUT 0x7fffffff
/* TODO: figure this out.... */
static inline int o2net_link_down(int err, struct socket *sock)
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 6f66b3751ace..53e6c40ed4c6 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -35,9 +35,8 @@
copy_to_user((typeof(a) __user *)b, &(a), sizeof(a))
/*
- * This call is void because we are already reporting an error that may
- * be -EFAULT. The error will be returned from the ioctl(2) call. It's
- * just a best-effort to tell userspace that this request caused the error.
+ * This is just a best-effort to tell userspace that this request
+ * caused the error.
*/
static inline void o2info_set_request_error(struct ocfs2_info_request *kreq,
struct ocfs2_info_request __user *req)
@@ -146,136 +145,105 @@ bail:
static int ocfs2_info_handle_blocksize(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_blocksize oib;
if (o2info_from_user(oib, req))
- goto bail;
+ return -EFAULT;
oib.ib_blocksize = inode->i_sb->s_blocksize;
o2info_set_request_filled(&oib.ib_req);
if (o2info_to_user(oib, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oib.ib_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_clustersize(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_clustersize oic;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oic, req))
- goto bail;
+ return -EFAULT;
oic.ic_clustersize = osb->s_clustersize;
o2info_set_request_filled(&oic.ic_req);
if (o2info_to_user(oic, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oic.ic_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_maxslots(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_maxslots oim;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oim, req))
- goto bail;
+ return -EFAULT;
oim.im_max_slots = osb->max_slots;
o2info_set_request_filled(&oim.im_req);
if (o2info_to_user(oim, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oim.im_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_label(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_label oil;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oil, req))
- goto bail;
+ return -EFAULT;
memcpy(oil.il_label, osb->vol_label, OCFS2_MAX_VOL_LABEL_LEN);
o2info_set_request_filled(&oil.il_req);
if (o2info_to_user(oil, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oil.il_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_uuid(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_uuid oiu;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oiu, req))
- goto bail;
+ return -EFAULT;
memcpy(oiu.iu_uuid_str, osb->uuid_str, OCFS2_TEXT_UUID_LEN + 1);
o2info_set_request_filled(&oiu.iu_req);
if (o2info_to_user(oiu, req))
- goto bail;
-
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oiu.iu_req, req);
+ return -EFAULT;
- return status;
+ return 0;
}
static int ocfs2_info_handle_fs_features(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_fs_features oif;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oif, req))
- goto bail;
+ return -EFAULT;
oif.if_compat_features = osb->s_feature_compat;
oif.if_incompat_features = osb->s_feature_incompat;
@@ -284,39 +252,28 @@ static int ocfs2_info_handle_fs_features(struct inode *inode,
o2info_set_request_filled(&oif.if_req);
if (o2info_to_user(oif, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oif.if_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_handle_journal_size(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_journal_size oij;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (o2info_from_user(oij, req))
- goto bail;
+ return -EFAULT;
oij.ij_journal_size = i_size_read(osb->journal->j_inode);
o2info_set_request_filled(&oij.ij_req);
if (o2info_to_user(oij, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oij.ij_req, req);
-
- return status;
+ return 0;
}
static int ocfs2_info_scan_inode_alloc(struct ocfs2_super *osb,
@@ -373,7 +330,7 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
u32 i;
u64 blkno = -1;
char namebuf[40];
- int status = -EFAULT, type = INODE_ALLOC_SYSTEM_INODE;
+ int status, type = INODE_ALLOC_SYSTEM_INODE;
struct ocfs2_info_freeinode *oifi = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct inode *inode_alloc = NULL;
@@ -385,8 +342,10 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
goto out_err;
}
- if (o2info_from_user(*oifi, req))
- goto bail;
+ if (o2info_from_user(*oifi, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
oifi->ifi_slotnum = osb->max_slots;
@@ -424,14 +383,16 @@ static int ocfs2_info_handle_freeinode(struct inode *inode,
o2info_set_request_filled(&oifi->ifi_req);
- if (o2info_to_user(*oifi, req))
- goto bail;
+ if (o2info_to_user(*oifi, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
status = 0;
bail:
if (status)
o2info_set_request_error(&oifi->ifi_req, req);
-
+out_free:
kfree(oifi);
out_err:
return status;
@@ -658,7 +619,7 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
{
u64 blkno = -1;
char namebuf[40];
- int status = -EFAULT, type = GLOBAL_BITMAP_SYSTEM_INODE;
+ int status, type = GLOBAL_BITMAP_SYSTEM_INODE;
struct ocfs2_info_freefrag *oiff;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
@@ -671,8 +632,10 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
goto out_err;
}
- if (o2info_from_user(*oiff, req))
- goto bail;
+ if (o2info_from_user(*oiff, req)) {
+ status = -EFAULT;
+ goto out_free;
+ }
/*
* chunksize from userspace should be power of 2.
*/
@@ -711,14 +674,14 @@ static int ocfs2_info_handle_freefrag(struct inode *inode,
if (o2info_to_user(*oiff, req)) {
status = -EFAULT;
- goto bail;
+ goto out_free;
}
status = 0;
bail:
if (status)
o2info_set_request_error(&oiff->iff_req, req);
-
+out_free:
kfree(oiff);
out_err:
return status;
@@ -727,23 +690,17 @@ out_err:
static int ocfs2_info_handle_unknown(struct inode *inode,
struct ocfs2_info_request __user *req)
{
- int status = -EFAULT;
struct ocfs2_info_request oir;
if (o2info_from_user(oir, req))
- goto bail;
+ return -EFAULT;
o2info_clear_request_filled(&oir);
if (o2info_to_user(oir, req))
- goto bail;
+ return -EFAULT;
- status = 0;
-bail:
- if (status)
- o2info_set_request_error(&oir, req);
-
- return status;
+ return 0;
}
/*
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
index c38355c1f3c9..1590c49cae57 100644
--- a/include/uapi/linux/xattr.h
+++ b/include/uapi/linux/xattr.h
@@ -13,7 +13,7 @@
#ifndef _UAPI_LINUX_XATTR_H
#define _UAPI_LINUX_XATTR_H
-#ifdef __UAPI_DEF_XATTR
+#if __UAPI_DEF_XATTR
#define __USE_KERNEL_XATTR_DEFS
#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 0b49a0a58102..2bee072268d9 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -64,7 +64,9 @@ bool kexec_in_progress = false;
char __weak kexec_purgatory[0];
size_t __weak kexec_purgatory_size = 0;
+#ifdef CONFIG_KEXEC_FILE
static int kexec_calculate_store_digests(struct kimage *image);
+#endif
/* Location of the reserved area for the crash kernel */
struct resource crashk_res = {
@@ -341,6 +343,7 @@ out_free_image:
return ret;
}
+#ifdef CONFIG_KEXEC_FILE
static int copy_file_from_fd(int fd, void **buf, unsigned long *buf_len)
{
struct fd f = fdget(fd);
@@ -612,6 +615,9 @@ out_free_image:
kfree(image);
return ret;
}
+#else /* CONFIG_KEXEC_FILE */
+static inline void kimage_file_post_load_cleanup(struct kimage *image) { }
+#endif /* CONFIG_KEXEC_FILE */
static int kimage_is_destination_range(struct kimage *image,
unsigned long start,
@@ -1375,6 +1381,7 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
}
#endif
+#ifdef CONFIG_KEXEC_FILE
SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
unsigned long, cmdline_len, const char __user *, cmdline_ptr,
unsigned long, flags)
@@ -1451,6 +1458,8 @@ out:
return ret;
}
+#endif /* CONFIG_KEXEC_FILE */
+
void crash_kexec(struct pt_regs *regs)
{
/* Take the kexec_mutex here to prevent sys_kexec_load
@@ -2006,6 +2015,7 @@ static int __init crash_save_vmcoreinfo_init(void)
subsys_initcall(crash_save_vmcoreinfo_init);
+#ifdef CONFIG_KEXEC_FILE
static int __kexec_add_segment(struct kimage *image, char *buf,
unsigned long bufsz, unsigned long mem,
unsigned long memsz)
@@ -2682,6 +2692,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
return 0;
}
+#endif /* CONFIG_KEXEC_FILE */
/*
* Move into place and start executing a preloaded standalone
diff --git a/kernel/resource.c b/kernel/resource.c
index da14b8d09296..60c5a3856ab7 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -351,15 +351,12 @@ static int find_next_iomem_res(struct resource *res, char *name,
end = res->end;
BUG_ON(start >= end);
- read_lock(&resource_lock);
-
- if (first_level_children_only) {
- p = iomem_resource.child;
+ if (first_level_children_only)
sibling_only = true;
- } else
- p = &iomem_resource;
- while ((p = next_resource(p, sibling_only))) {
+ read_lock(&resource_lock);
+
+ for (p = iomem_resource.child; p; p = next_resource(p, sibling_only)) {
if (p->flags != res->flags)
continue;
if (name && strcmp(p->name, name))
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1b233fc67466..a28590083622 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1036,8 +1036,13 @@ config TRACE_IRQFLAGS
either tracing or lock debugging.
config STACKTRACE
- bool
+ bool "Stack backtrace support"
depends on STACKTRACE_SUPPORT
+ help
+ This option causes the kernel to create a /proc/pid/stack for
+ every process, showing its current stack trace.
+ It is also used by various kernel debugging features that require
+ stack trace generation.
config DEBUG_KOBJECT
bool "kobject debugging"
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 9eebfadeeee1..a67c26e0f360 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -217,7 +217,7 @@ void hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
if (hugetlb_cgroup_disabled())
return;
- VM_BUG_ON(!spin_is_locked(&hugetlb_lock));
+ lockdep_assert_held(&hugetlb_lock);
h_cg = hugetlb_cgroup_from_page(page);
if (unlikely(!h_cg))
return;
diff --git a/mm/memblock.c b/mm/memblock.c
index 6d2f219a48b0..70fad0c0dafb 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -192,8 +192,7 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size,
phys_addr_t align, phys_addr_t start,
phys_addr_t end, int nid)
{
- int ret;
- phys_addr_t kernel_end;
+ phys_addr_t kernel_end, ret;
/* pump up @end */
if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
diff --git a/mm/memory.c b/mm/memory.c
index ab3537bcfed2..adeac306610f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -751,7 +751,7 @@ struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
unsigned long pfn = pte_pfn(pte);
if (HAVE_PTE_SPECIAL) {
- if (likely(!pte_special(pte) || pte_numa(pte)))
+ if (likely(!pte_special(pte)))
goto check_pfn;
if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP))
return NULL;
@@ -777,15 +777,14 @@ struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
}
}
+ if (is_zero_pfn(pfn))
+ return NULL;
check_pfn:
if (unlikely(pfn > highest_memmap_pfn)) {
print_bad_pte(vma, addr, pte, NULL);
return NULL;
}
- if (is_zero_pfn(pfn))
- return NULL;
-
/*
* NOTE! We still have PageReserved() pages in the page tables.
* eg. VDSO mappings can cause them to exist.
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index a8b919925934..dfb79e028ecb 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -195,7 +195,7 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
pmd_t entry = *pmdp;
if (pmd_numa(entry))
entry = pmd_mknonnuma(entry);
- set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(*pmdp));
+ set_pmd_at(vma->vm_mm, address, pmdp, pmd_mknotpresent(entry));
flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
diff --git a/mm/zbud.c b/mm/zbud.c
index a05790b1915e..f26e7fcc7fa2 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -195,6 +195,7 @@ static struct zpool_driver zbud_zpool_driver = {
.total_size = zbud_zpool_total_size,
};
+MODULE_ALIAS("zpool-zbud");
#endif /* CONFIG_ZPOOL */
/*****************
diff --git a/mm/zpool.c b/mm/zpool.c
index e40612a1df00..739cdf0d183a 100644
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -150,7 +150,7 @@ struct zpool *zpool_create_pool(char *type, gfp_t gfp, struct zpool_ops *ops)
driver = zpool_get_driver(type);
if (!driver) {
- request_module(type);
+ request_module("zpool-%s", type);
driver = zpool_get_driver(type);
}
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 4e2fc83cb394..94f38fac5e81 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -315,6 +315,7 @@ static struct zpool_driver zs_zpool_driver = {
.total_size = zs_zpool_total_size,
};
+MODULE_ALIAS("zpool-zsmalloc");
#endif /* CONFIG_ZPOOL */
/* per-cpu VM mapping areas for zspage accesses that cross page boundaries */
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 31a731e06f50..b385bcbbf2f5 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2133,7 +2133,7 @@ sub process {
# Check for improperly formed commit descriptions
if ($in_commit_log &&
$line =~ /\bcommit\s+[0-9a-f]{5,}/i &&
- $line !~ /\b[Cc]ommit [0-9a-f]{12,16} \("/) {
+ $line !~ /\b[Cc]ommit [0-9a-f]{12,40} \("/) {
$line =~ /\b(c)ommit\s+([0-9a-f]{5,})/i;
my $init_char = $1;
my $orig_commit = lc($2);
@@ -2141,7 +2141,7 @@ sub process {
my $desc = 'commit description';
($id, $desc) = git_commit_info($orig_commit, $id, $desc);
ERROR("GIT_COMMIT_ID",
- "Please use 12 to 16 chars for the git commit ID like: '${init_char}ommit $id (\"$desc\")'\n" . $herecurr);
+ "Please use 12 or more chars for the git commit ID like: '${init_char}ommit $id (\"$desc\")'\n" . $herecurr);
}
# Check for added, moved or deleted files
diff --git a/tools/testing/selftests/ipc/Makefile b/tools/testing/selftests/ipc/Makefile
index 5386fd7c43ae..74bbefdeaf4c 100644
--- a/tools/testing/selftests/ipc/Makefile
+++ b/tools/testing/selftests/ipc/Makefile
@@ -1,18 +1,18 @@
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
ifeq ($(ARCH),i386)
- ARCH := X86
+ ARCH := x86
CFLAGS := -DCONFIG_X86_32 -D__i386__
endif
ifeq ($(ARCH),x86_64)
- ARCH := X86
+ ARCH := x86
CFLAGS := -DCONFIG_X86_64 -D__x86_64__
endif
CFLAGS += -I../../../../usr/include/
all:
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),x86)
gcc $(CFLAGS) msgque.c -o msgque_test
else
echo "Not an x86 target, can't build msgque selftest"
diff --git a/tools/testing/selftests/kcmp/Makefile b/tools/testing/selftests/kcmp/Makefile
index d7d6bbeeff2f..8aabd82db9e4 100644
--- a/tools/testing/selftests/kcmp/Makefile
+++ b/tools/testing/selftests/kcmp/Makefile
@@ -1,11 +1,11 @@
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
ifeq ($(ARCH),i386)
- ARCH := X86
+ ARCH := x86
CFLAGS := -DCONFIG_X86_32 -D__i386__
endif
ifeq ($(ARCH),x86_64)
- ARCH := X86
+ ARCH := x86
CFLAGS := -DCONFIG_X86_64 -D__x86_64__
endif
@@ -15,7 +15,7 @@ CFLAGS += -I../../../../usr/include/
CFLAGS += -I../../../../arch/x86/include/
all:
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),x86)
gcc $(CFLAGS) kcmp_test.c -o kcmp_test
else
echo "Not an x86 target, can't build kcmp selftest"
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index 6816c491c5ff..ad4ab01cd28f 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -1,10 +1,10 @@
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
ifeq ($(ARCH),i386)
- ARCH := X86
+ ARCH := x86
endif
ifeq ($(ARCH),x86_64)
- ARCH := X86
+ ARCH := x86
endif
CFLAGS += -D_FILE_OFFSET_BITS=64
@@ -14,20 +14,20 @@ CFLAGS += -I../../../../include/uapi/
CFLAGS += -I../../../../include/
all:
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),x86)
gcc $(CFLAGS) memfd_test.c -o memfd_test
else
echo "Not an x86 target, can't build memfd selftest"
endif
run_tests: all
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),x86)
gcc $(CFLAGS) memfd_test.c -o memfd_test
endif
@./memfd_test || echo "memfd_test: [FAIL]"
build_fuse:
-ifeq ($(ARCH),X86)
+ifeq ($(ARCH),x86)
gcc $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
gcc $(CFLAGS) fuse_test.c -o fuse_test
else