Merge branch 'akpm' (patches from Andrew)

606c61a0 · Linus Torvalds <[email protected]> · 2016-03-25 16:59:11 -07:00

Merge fourth patch-bomb from Andrew Morton:
 "A lot more stuff than expected, sorry.  A bunch of ocfs2 reviewing was
  finished off.

   - mhocko's oom-reaper out-of-memory-handler changes

   - ocfs2 fixes and features

   - KASAN feature work

   - various fixes"

* emailed patches from Andrew Morton <[email protected]>: (42 commits)
  thp: fix typo in khugepaged_scan_pmd()
  MAINTAINERS: fill entries for KASAN
  mm/filemap: generic_file_read_iter(): check for zero reads unconditionally
  kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2
  mm, kasan: stackdepot implementation. Enable stackdepot for SLAB
  arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
  mm, kasan: add GFP flags to KASAN API
  mm, kasan: SLAB support
  kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right()
  include/linux/oom.h: remove undefined oom_kills_count()/note_oom_kill()
  mm/page_alloc: prevent merging between isolated and other pageblocks
  drivers/memstick/host/r592.c: avoid gcc-6 warning
  ocfs2: extend enough credits for freeing one truncate record while replaying truncate records
  ocfs2: extend transaction for ocfs2_remove_rightmost_path() and ocfs2_update_edge_lengths() before to avoid inconsistency between inode and et
  ocfs2/dlm: move lock to the tail of grant queue while doing in-place convert
  ocfs2: solve a problem of crossing the boundary in updating backups
  ocfs2: fix occurring deadlock by changing ocfs2_wq from global to local
  ocfs2/dlm: fix BUG in dlm_move_lockres_to_recovery_list
  ocfs2/dlm: fix race between convert and recovery
  ocfs2: fix a deadlock issue in ocfs2_dio_end_io_write()
  ...

Commit: 606c61a0579669c292dc5f5e1cf898edecfc0d53
Parents: 15dbc136 · 0fda2788

Merge commit. Changes below are compared with the first parent: 15dbc136.

Changes

79 files changed · +1770 −962

File	Status	Add	Del	Content
Documentation/kasan.txt	modified	+2	−3	View file
MAINTAINERS	modified	+14	−0	View file
arch/arm/include/asm/exception.h	modified	+1	−1	View file
arch/arm/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/arm64/include/asm/exception.h	modified	+1	−1	View file
arch/arm64/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/blackfin/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/c6x/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/metag/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/microblaze/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/mips/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/nios2/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/openrisc/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/parisc/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/powerpc/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/s390/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/sh/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/sparc/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/tile/kernel/vmlinux.lds.S	modified	+1	−0	View file
arch/x86/kernel/Makefile	modified	+1	−0	View file
arch/x86/kernel/vmlinux.lds.S	modified	+1	−0	View file
drivers/input/input-compat.c	modified	+3	−3	View file
drivers/input/input-compat.h	modified	+1	−3	View file
drivers/input/input.c	modified	+1	−1	View file
drivers/input/misc/uinput.c	modified	+2	−2	View file
drivers/memstick/host/r592.c	modified	+1	−2	View file
fs/ocfs2/alloc.c	modified	+64	−41	View file
fs/ocfs2/aops.c	modified	+561	−585	View file
fs/ocfs2/aops.h	modified	+8	−11	View file
fs/ocfs2/cluster/heartbeat.c	modified	+2	−2	View file
fs/ocfs2/dlm/dlmconvert.c	modified	+29	−1	View file
fs/ocfs2/dlm/dlmrecovery.c	modified	+0	−1	View file
fs/ocfs2/file.c	modified	+15	−150	View file
fs/ocfs2/inode.c	modified	+3	−0	View file
fs/ocfs2/inode.h	modified	+3	−3	View file
fs/ocfs2/journal.c	modified	+4	−4	View file
fs/ocfs2/localalloc.c	modified	+2	−2	View file
fs/ocfs2/mmap.c	modified	+2	−2	View file
fs/ocfs2/ocfs2.h	modified	+8	−0	View file
fs/ocfs2/ocfs2_trace.h	modified	+4	−12	View file
fs/ocfs2/quota_global.c	modified	+1	−1	View file
fs/ocfs2/resize.c	modified	+1	−1	View file
fs/ocfs2/super.c	modified	+16	−23	View file
fs/ocfs2/super.h	modified	+0	−2	View file
include/asm-generic/vmlinux.lds.h	modified	+11	−1	View file
include/linux/ftrace.h	modified	+0	−11	View file
include/linux/interrupt.h	modified	+20	−0	View file
include/linux/kasan.h	modified	+23	−8	View file
include/linux/mm.h	modified	+2	−0	View file
include/linux/oom.h	modified	+1	−3	View file
include/linux/sched.h	modified	+4	−0	View file
include/linux/slab.h	modified	+8	−2	View file
include/linux/slab_def.h	modified	+14	−0	View file
include/linux/slub_def.h	modified	+11	−0	View file
include/linux/stackdepot.h	added	+32	−0	View file
kernel/exit.c	modified	+1	−1	View file
kernel/softirq.c	modified	+1	−1	View file
kernel/time/timer.c	modified	+11	−0	View file
kernel/trace/trace_functions_graph.c	modified	+1	−0	View file
lib/Kconfig	modified	+4	−0	View file
lib/Kconfig.kasan	modified	+4	−1	View file
lib/Makefile	modified	+3	−0	View file
lib/stackdepot.c	added	+284	−0	View file
lib/test_kasan.c	modified	+29	−1	View file
mm/Makefile	modified	+1	−0	View file
mm/filemap.c	modified	+4	−3	View file
mm/huge_memory.c	modified	+1	−1	View file
mm/internal.h	modified	+5	−0	View file
mm/kasan/kasan.c	modified	+154	−8	View file
mm/kasan/kasan.h	modified	+37	−0	View file
mm/kasan/report.c	modified	+51	−11	View file
mm/memory.c	modified	+10	−7	View file
mm/mempool.c	modified	+8	−8	View file
mm/oom_kill.c	modified	+187	−9	View file
mm/page_alloc.c	modified	+33	−13	View file
mm/slab.c	modified	+37	−5	View file
mm/slab.h	modified	+1	−1	View file
mm/slab_common.c	modified	+3	−3	View file
mm/slub.c	modified	+8	−7	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/kasan.txt

View file

diff --git a/Documentation/kasan.txt b/Documentation/kasan.txt
index aa1e0c9..7dd95b3 100644
--- a/Documentation/kasan.txt
+++ b/Documentation/kasan.txt
@@ -12,8 +12,7 @@ KASAN uses compile-time instrumentation for checking every memory access,
 therefore you will need a GCC version 4.9.2 or later. GCC 5.0 or later is
 required for detection of out-of-bounds accesses to stack or global variables.
 
-Currently KASAN is supported only for x86_64 architecture and requires the
-kernel to be built with the SLUB allocator.
+Currently KASAN is supported only for x86_64 architecture.
 
 1. Usage
 ========
@@ -27,7 +26,7 @@ inline are compiler instrumentation types. The former produces smaller binary
 the latter is 1.1 - 2 times faster. Inline instrumentation requires a GCC
 version 5.0 or later.
 
-Currently KASAN works only with the SLUB memory allocator.
+KASAN works with both SLUB and SLAB memory allocators.
 For better bug detection and nicer reporting, enable CONFIG_STACKTRACE.
 
 To disable instrumentation for specific files or directories, add a line

MAINTAINERS

View file

diff --git a/MAINTAINERS b/MAINTAINERS
index f07a174..df8cf6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6165,6 +6165,20 @@ S:	Maintained
 F:	Documentation/hwmon/k8temp
 F:	drivers/hwmon/k8temp.c
 
+KASAN
+M:	Andrey Ryabinin <[email protected]>
+R:	Alexander Potapenko <[email protected]>
+R:	Dmitry Vyukov <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	arch/*/include/asm/kasan.h
+F:	arch/*/mm/kasan_init*
+F:	Documentation/kasan.txt
+F:	include/linux/kasan.h
+F:	lib/test_kasan.c
+F:	mm/kasan/
+F:	scripts/Makefile.kasan
+
 KCONFIG
 M:	"Yann E. MORIN" <[email protected]>
 L:	[email protected]

arch/arm/include/asm/exception.h

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diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h
index 5abaf5b..bf19912 100644
--- a/arch/arm/include/asm/exception.h
+++ b/arch/arm/include/asm/exception.h
@@ -7,7 +7,7 @@
 #ifndef __ASM_ARM_EXCEPTION_H
 #define __ASM_ARM_EXCEPTION_H
 
-#include <linux/ftrace.h>
+#include <linux/interrupt.h>
 
 #define __exception	__attribute__((section(".exception.text")))
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER

arch/arm/kernel/vmlinux.lds.S

View file

diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 1fab979..e2c6da0 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -108,6 +108,7 @@ SECTIONS
 			*(.exception.text)
 			__exception_text_end = .;
 			IRQENTRY_TEXT
+			SOFTIRQENTRY_TEXT
 			TEXT_TEXT
 			SCHED_TEXT
 			LOCK_TEXT

arch/arm64/include/asm/exception.h

View file

diff --git a/arch/arm64/include/asm/exception.h b/arch/arm64/include/asm/exception.h
index 6cb7e1a..0c2eec4 100644
--- a/arch/arm64/include/asm/exception.h
+++ b/arch/arm64/include/asm/exception.h
@@ -18,7 +18,7 @@
 #ifndef __ASM_EXCEPTION_H
 #define __ASM_EXCEPTION_H
 
-#include <linux/ftrace.h>
+#include <linux/interrupt.h>
 
 #define __exception	__attribute__((section(".exception.text")))
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER

arch/arm64/kernel/vmlinux.lds.S

View file

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 37f624d..5a1939a 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -103,6 +103,7 @@ SECTIONS
 			*(.exception.text)
 			__exception_text_end = .;
 			IRQENTRY_TEXT
+			SOFTIRQENTRY_TEXT
 			TEXT_TEXT
 			SCHED_TEXT
 			LOCK_TEXT

arch/blackfin/kernel/vmlinux.lds.S

View file

diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index c9eec84..d920b95 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -35,6 +35,7 @@ SECTIONS
 #endif
 		LOCK_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		KPROBES_TEXT
 #ifdef CONFIG_ROMKERNEL
 		__sinittext = .;

arch/c6x/kernel/vmlinux.lds.S

View file

diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S
index 5a6e141..50bc10f 100644
--- a/arch/c6x/kernel/vmlinux.lds.S
+++ b/arch/c6x/kernel/vmlinux.lds.S
@@ -72,6 +72,7 @@ SECTIONS
 		SCHED_TEXT
 		LOCK_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		KPROBES_TEXT
 		*(.fixup)
 		*(.gnu.warning)

arch/metag/kernel/vmlinux.lds.S

View file

diff --git a/arch/metag/kernel/vmlinux.lds.S b/arch/metag/kernel/vmlinux.lds.S
index e12055e..150ace9 100644
--- a/arch/metag/kernel/vmlinux.lds.S
+++ b/arch/metag/kernel/vmlinux.lds.S
@@ -24,6 +24,7 @@ SECTIONS
 	LOCK_TEXT
 	KPROBES_TEXT
 	IRQENTRY_TEXT
+	SOFTIRQENTRY_TEXT
 	*(.text.*)
 	*(.gnu.warning)
 	}

arch/microblaze/kernel/vmlinux.lds.S

View file

diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index be9488d..0a47f04 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -36,6 +36,7 @@ SECTIONS {
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		. = ALIGN (4) ;
 		_etext = . ;
 	}

arch/mips/kernel/vmlinux.lds.S

View file

diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 0a93e83..54d653e 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -58,6 +58,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.text.*)
 		*(.fixup)
 		*(.gnu.warning)

arch/nios2/kernel/vmlinux.lds.S

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diff --git a/arch/nios2/kernel/vmlinux.lds.S b/arch/nios2/kernel/vmlinux.lds.S
index 326fab4..e23e895 100644
--- a/arch/nios2/kernel/vmlinux.lds.S
+++ b/arch/nios2/kernel/vmlinux.lds.S
@@ -39,6 +39,7 @@ SECTIONS
 		SCHED_TEXT
 		LOCK_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		KPROBES_TEXT
 	} =0
 	_etext = .;

arch/openrisc/kernel/vmlinux.lds.S

View file

diff --git a/arch/openrisc/kernel/vmlinux.lds.S b/arch/openrisc/kernel/vmlinux.lds.S
index 2d69a85..d936de4 100644
--- a/arch/openrisc/kernel/vmlinux.lds.S
+++ b/arch/openrisc/kernel/vmlinux.lds.S
@@ -50,6 +50,7 @@ SECTIONS
 	  LOCK_TEXT
 	  KPROBES_TEXT
 	  IRQENTRY_TEXT
+	  SOFTIRQENTRY_TEXT
 	  *(.fixup)
 	  *(.text.__*)
 	  _etext = .;

arch/parisc/kernel/vmlinux.lds.S

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diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 308f290..f3ead0b 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -72,6 +72,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.text.do_softirq)
 		*(.text.sys_exit)
 		*(.text.do_sigaltstack)

arch/powerpc/kernel/vmlinux.lds.S

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diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index d41fd0a..2dd91f7 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -55,6 +55,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 
 #ifdef CONFIG_PPC32
 		*(.got1)

arch/s390/kernel/vmlinux.lds.S

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diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 445657f..0f41a82 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -28,6 +28,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
 	} :text = 0x0700

arch/sh/kernel/vmlinux.lds.S

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diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index db88cbf..235a410 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -39,6 +39,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
 		_etext = .;		/* End of text section */

arch/sparc/kernel/vmlinux.lds.S

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diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index f1a2f68..aadd321 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -48,6 +48,7 @@ SECTIONS
 		LOCK_TEXT
 		KPROBES_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.gnu.warning)
 	} = 0
 	_etext = .;

arch/tile/kernel/vmlinux.lds.S

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diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S
index 0e059a0..378f5d8 100644
--- a/arch/tile/kernel/vmlinux.lds.S
+++ b/arch/tile/kernel/vmlinux.lds.S
@@ -45,6 +45,7 @@ SECTIONS
     LOCK_TEXT
     KPROBES_TEXT
     IRQENTRY_TEXT
+    SOFTIRQENTRY_TEXT
     __fix_text_end = .;   /* tile-cpack won't rearrange before this */
     ALIGN_FUNCTION();
     *(.hottext*)

arch/x86/kernel/Makefile

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diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index adaae2c..616ebd2 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -19,6 +19,7 @@ endif
 KASAN_SANITIZE_head$(BITS).o				:= n
 KASAN_SANITIZE_dumpstack.o				:= n
 KASAN_SANITIZE_dumpstack_$(BITS).o			:= n
+KASAN_SANITIZE_stacktrace.o := n
 
 OBJECT_FILES_NON_STANDARD_head_$(BITS).o		:= y
 OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o	:= y

arch/x86/kernel/vmlinux.lds.S

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diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index d239639..4c941f8 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -101,6 +101,7 @@ SECTIONS
 		KPROBES_TEXT
 		ENTRY_TEXT
 		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
 		*(.fixup)
 		*(.gnu.warning)
 		/* End of text section */

drivers/input/input-compat.c

View file

diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c
index 64ca711..d84d20b 100644
--- a/drivers/input/input-compat.c
+++ b/drivers/input/input-compat.c
@@ -17,7 +17,7 @@
 int input_event_from_user(const char __user *buffer,
 			  struct input_event *event)
 {
-	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct input_event_compat compat_event;
 
 		if (copy_from_user(&compat_event, buffer,
@@ -41,7 +41,7 @@ int input_event_from_user(const char __user *buffer,
 int input_event_to_user(char __user *buffer,
 			const struct input_event *event)
 {
-	if (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) {
+	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct input_event_compat compat_event;
 
 		compat_event.time.tv_sec = event->time.tv_sec;
@@ -65,7 +65,7 @@ int input_event_to_user(char __user *buffer,
 int input_ff_effect_from_user(const char __user *buffer, size_t size,
 			      struct ff_effect *effect)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct ff_effect_compat *compat_effect;
 
 		if (size != sizeof(struct ff_effect_compat))

drivers/input/input-compat.h

View file

diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
index 0f25878..1563160 100644
--- a/drivers/input/input-compat.h
+++ b/drivers/input/input-compat.h
@@ -17,8 +17,6 @@
 
 #ifdef CONFIG_COMPAT
 
-#define INPUT_COMPAT_TEST in_compat_syscall()
-
 struct input_event_compat {
 	struct compat_timeval time;
 	__u16 type;
@@ -57,7 +55,7 @@ struct ff_effect_compat {
 
 static inline size_t input_event_size(void)
 {
-	return (INPUT_COMPAT_TEST && !COMPAT_USE_64BIT_TIME) ?
+	return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ?
 		sizeof(struct input_event_compat) : sizeof(struct input_event);
 }
 

drivers/input/input.c

View file

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 8806059..b87ffbd 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1015,7 +1015,7 @@ static int input_bits_to_string(char *buf, int buf_size,
 {
 	int len = 0;
 
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		u32 dword = bits >> 32;
 		if (dword || !skip_empty)
 			len += snprintf(buf, buf_size, "%x ", dword);

drivers/input/misc/uinput.c

View file

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 4eb9e4d..abe1a92 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -664,7 +664,7 @@ struct uinput_ff_upload_compat {
 static int uinput_ff_upload_to_user(char __user *buffer,
 				    const struct uinput_ff_upload *ff_up)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct uinput_ff_upload_compat ff_up_compat;
 
 		ff_up_compat.request_id = ff_up->request_id;
@@ -695,7 +695,7 @@ static int uinput_ff_upload_to_user(char __user *buffer,
 static int uinput_ff_upload_from_user(const char __user *buffer,
 				      struct uinput_ff_upload *ff_up)
 {
-	if (INPUT_COMPAT_TEST) {
+	if (in_compat_syscall()) {
 		struct uinput_ff_upload_compat ff_up_compat;
 
 		if (copy_from_user(&ff_up_compat, buffer,

drivers/memstick/host/r592.c

View file

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index ef09ba0..d5cfb50 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -298,8 +298,7 @@ static int r592_transfer_fifo_dma(struct r592_device *dev)
 	sg_count = dma_map_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
 		PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
 
-	if (sg_count != 1 ||
-			(sg_dma_len(&dev->req->sg) < dev->req->sg.length)) {
+	if (sg_count != 1 || sg_dma_len(&dev->req->sg) < R592_LFIFO_SIZE) {
 		message("problem in dma_map_sg");
 		return -EIO;
 	}

fs/ocfs2/alloc.c

View file

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index d002579..70907d6 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -2516,21 +2516,6 @@ static int ocfs2_update_edge_lengths(handle_t *handle,
 	struct ocfs2_extent_block *eb;
 	u32 range;
 
-	/*
-	 * In normal tree rotation process, we will never touch the
-	 * tree branch above subtree_index and ocfs2_extend_rotate_transaction
-	 * doesn't reserve the credits for them either.
-	 *
-	 * But we do have a special case here which will update the rightmost
-	 * records for all the bh in the path.
-	 * So we have to allocate extra credits and access them.
-	 */
-	ret = ocfs2_extend_trans(handle, subtree_index);
-	if (ret) {
-		mlog_errno(ret);
-		goto out;
-	}
-
 	ret = ocfs2_journal_access_path(et->et_ci, handle, path);
 	if (ret) {
 		mlog_errno(ret);
@@ -2956,7 +2941,7 @@ static int __ocfs2_rotate_tree_left(handle_t *handle,
 		     right_path->p_node[subtree_root].bh->b_blocknr,
 		     right_path->p_tree_depth);
 
-		ret = ocfs2_extend_rotate_transaction(handle, subtree_root,
+		ret = ocfs2_extend_rotate_transaction(handle, 0,
 						      orig_credits, left_path);
 		if (ret) {
 			mlog_errno(ret);
@@ -3029,21 +3014,9 @@ static int ocfs2_remove_rightmost_path(handle_t *handle,
 	struct ocfs2_extent_block *eb;
 	struct ocfs2_extent_list *el;
 
-
 	ret = ocfs2_et_sanity_check(et);
 	if (ret)
 		goto out;
-	/*
-	 * There's two ways we handle this depending on
-	 * whether path is the only existing one.
-	 */
-	ret = ocfs2_extend_rotate_transaction(handle, 0,
-					      handle->h_buffer_credits,
-					      path);
-	if (ret) {
-		mlog_errno(ret);
-		goto out;
-	}
 
 	ret = ocfs2_journal_access_path(et->et_ci, handle, path);
 	if (ret) {
@@ -3641,6 +3614,14 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
 		 */
 		if (le16_to_cpu(right_rec->e_leaf_clusters) == 0 &&
 		    le16_to_cpu(el->l_next_free_rec) == 1) {
+			/* extend credit for ocfs2_remove_rightmost_path */
+			ret = ocfs2_extend_rotate_transaction(handle, 0,
+					handle->h_buffer_credits,
+					right_path);
+			if (ret) {
+				mlog_errno(ret);
+				goto out;
+			}
 
 			ret = ocfs2_remove_rightmost_path(handle, et,
 							  right_path,
@@ -3679,6 +3660,14 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
 	BUG_ON(ctxt->c_contig_type == CONTIG_NONE);
 
 	if (ctxt->c_split_covers_rec && ctxt->c_has_empty_extent) {
+		/* extend credit for ocfs2_remove_rightmost_path */
+		ret = ocfs2_extend_rotate_transaction(handle, 0,
+				handle->h_buffer_credits,
+				path);
+		if (ret) {
+			mlog_errno(ret);
+			goto out;
+		}
 		/*
 		 * The merge code will need to create an empty
 		 * extent to take the place of the newly
@@ -3727,6 +3716,15 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
 		 */
 		BUG_ON(!ocfs2_is_empty_extent(&el->l_recs[0]));
 
+		/* extend credit for ocfs2_remove_rightmost_path */
+		ret = ocfs2_extend_rotate_transaction(handle, 0,
+					handle->h_buffer_credits,
+					path);
+		if (ret) {
+			mlog_errno(ret);
+			goto out;
+		}
+
 		/* The merge left us with an empty extent, remove it. */
 		ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
 		if (ret) {
@@ -3748,6 +3746,15 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
 			goto out;
 		}
 
+		/* extend credit for ocfs2_remove_rightmost_path */
+		ret = ocfs2_extend_rotate_transaction(handle, 0,
+				handle->h_buffer_credits,
+				path);
+		if (ret) {
+			mlog_errno(ret);
+			goto out;
+		}
+
 		ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
 		/*
 		 * Error from this last rotate is not critical, so
@@ -3783,6 +3790,16 @@ static int ocfs2_try_to_merge_extent(handle_t *handle,
 		}
 
 		if (ctxt->c_split_covers_rec) {
+			/* extend credit for ocfs2_remove_rightmost_path */
+			ret = ocfs2_extend_rotate_transaction(handle, 0,
+					handle->h_buffer_credits,
+					path);
+			if (ret) {
+				mlog_errno(ret);
+				ret = 0;
+				goto out;
+			}
+
 			/*
 			 * The merge may have left an empty extent in
 			 * our leaf. Try to rotate it away.
@@ -5342,6 +5359,15 @@ static int ocfs2_truncate_rec(handle_t *handle,
 	struct ocfs2_extent_block *eb;
 
 	if (ocfs2_is_empty_extent(&el->l_recs[0]) && index > 0) {
+		/* extend credit for ocfs2_remove_rightmost_path */
+		ret = ocfs2_extend_rotate_transaction(handle, 0,
+				handle->h_buffer_credits,
+				path);
+		if (ret) {
+			mlog_errno(ret);
+			goto out;
+		}
+
 		ret = ocfs2_rotate_tree_left(handle, et, path, dealloc);
 		if (ret) {
 			mlog_errno(ret);
@@ -5928,16 +5954,6 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
 
 		ocfs2_journal_dirty(handle, tl_bh);
 
-		/* TODO: Perhaps we can calculate the bulk of the
-		 * credits up front rather than extending like
-		 * this. */
-		status = ocfs2_extend_trans(handle,
-					    OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
-		if (status < 0) {
-			mlog_errno(status);
-			goto bail;
-		}
-
 		rec = tl->tl_recs[i];
 		start_blk = ocfs2_clusters_to_blocks(data_alloc_inode->i_sb,
 						    le32_to_cpu(rec.t_start));
@@ -5958,6 +5974,13 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
 				goto bail;
 			}
 		}
+
+		status = ocfs2_extend_trans(handle,
+				OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
+		if (status < 0) {
+			mlog_errno(status);
+			goto bail;
+		}
 		i--;
 	}
 
@@ -6016,7 +6039,7 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 		goto out_mutex;
 	}
 
-	handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
+	handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		mlog_errno(status);
@@ -6079,7 +6102,7 @@ void ocfs2_schedule_truncate_log_flush(struct ocfs2_super *osb,
 		if (cancel)
 			cancel_delayed_work(&osb->osb_truncate_log_wq);
 
-		queue_delayed_work(ocfs2_wq, &osb->osb_truncate_log_wq,
+		queue_delayed_work(osb->ocfs2_wq, &osb->osb_truncate_log_wq,
 				   OCFS2_TRUNCATE_LOG_FLUSH_INTERVAL);
 	}
 }
@@ -6253,7 +6276,7 @@ void ocfs2_truncate_log_shutdown(struct ocfs2_super *osb)
 
 	if (tl_inode) {
 		cancel_delayed_work(&osb->osb_truncate_log_wq);
-		flush_workqueue(ocfs2_wq);
+		flush_workqueue(osb->ocfs2_wq);
 
 		status = ocfs2_flush_truncate_log(osb);
 		if (status < 0)

fs/ocfs2/aops.c

View file

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 043110e..1581240 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -499,158 +499,6 @@ bail:
 	return status;
 }
 
-/*
- * TODO: Make this into a generic get_blocks function.

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