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-rw-r--r--include/asm-cris/thread_info.h2
-rw-r--r--include/asm-generic/rtc.h24
-rw-r--r--include/asm-m68k/thread_info.h1
-rw-r--r--include/asm-parisc/thread_info.h2
-rw-r--r--include/asm-um/thread_info.h2
-rw-r--r--include/asm-xtensa/thread_info.h2
-rw-r--r--include/linux/Kbuild2
-rw-r--r--include/linux/backing-dev.h13
-rw-r--r--include/linux/bcd.h16
-rw-r--r--include/linux/bitmap.h1
-rw-r--r--include/linux/buffer_head.h2
-rw-r--r--include/linux/byteorder/Kbuild1
-rw-r--r--include/linux/byteorder/big_endian.h1
-rw-r--r--include/linux/byteorder/little_endian.h1
-rw-r--r--include/linux/cgroup.h28
-rw-r--r--include/linux/cgroup_subsys.h6
-rw-r--r--include/linux/crash_dump.h38
-rw-r--r--include/linux/ext3_fs.h2
-rw-r--r--include/linux/fb.h1
-rw-r--r--include/linux/freezer.h43
-rw-r--r--include/linux/jbd.h3
-rw-r--r--include/linux/memcontrol.h34
-rw-r--r--include/linux/migrate.h3
-rw-r--r--include/linux/mm.h9
-rw-r--r--include/linux/mm_inline.h98
-rw-r--r--include/linux/mm_types.h3
-rw-r--r--include/linux/mmzone.h105
-rw-r--r--include/linux/mtd/cfi.h9
-rw-r--r--include/linux/mtd/flashchip.h4
-rw-r--r--include/linux/mtd/mtd.h4
-rw-r--r--include/linux/mtd/nand-gpio.h19
-rw-r--r--include/linux/mtd/nand.h1
-rw-r--r--include/linux/mtd/onenand_regs.h2
-rw-r--r--include/linux/mtd/partitions.h1
-rw-r--r--include/linux/mtd/sh_flctl.h125
-rw-r--r--include/linux/page-flags.h55
-rw-r--r--include/linux/page_cgroup.h103
-rw-r--r--include/linux/pagemap.h44
-rw-r--r--include/linux/pagevec.h34
-rw-r--r--include/linux/pci.h2
-rw-r--r--include/linux/ptrace.h1
-rw-r--r--include/linux/rmap.h29
-rw-r--r--include/linux/sched.h13
-rw-r--r--include/linux/seq_file.h13
-rw-r--r--include/linux/swab.h10
-rw-r--r--include/linux/swap.h69
-rw-r--r--include/linux/sysfs.h5
-rw-r--r--include/linux/vmalloc.h15
-rw-r--r--include/linux/vmstat.h20
-rw-r--r--include/net/netns/x_tables.h4
50 files changed, 846 insertions, 179 deletions
diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h
index 7efe1000f99..cee97f14af3 100644
--- a/include/asm-cris/thread_info.h
+++ b/include/asm-cris/thread_info.h
@@ -88,6 +88,7 @@ struct thread_info {
#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
+#define TIF_FREEZE 18 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
@@ -95,6 +96,7 @@ struct thread_info {
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h
index 71ef3f0b968..89061c1a67d 100644
--- a/include/asm-generic/rtc.h
+++ b/include/asm-generic/rtc.h
@@ -84,12 +84,12 @@ static inline unsigned int get_rtc_time(struct rtc_time *time)
if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
{
- BCD_TO_BIN(time->tm_sec);
- BCD_TO_BIN(time->tm_min);
- BCD_TO_BIN(time->tm_hour);
- BCD_TO_BIN(time->tm_mday);
- BCD_TO_BIN(time->tm_mon);
- BCD_TO_BIN(time->tm_year);
+ time->tm_sec = bcd2bin(time->tm_sec);
+ time->tm_min = bcd2bin(time->tm_min);
+ time->tm_hour = bcd2bin(time->tm_hour);
+ time->tm_mday = bcd2bin(time->tm_mday);
+ time->tm_mon = bcd2bin(time->tm_mon);
+ time->tm_year = bcd2bin(time->tm_year);
}
#ifdef CONFIG_MACH_DECSTATION
@@ -159,12 +159,12 @@ static inline int set_rtc_time(struct rtc_time *time)
if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY)
|| RTC_ALWAYS_BCD) {
- BIN_TO_BCD(sec);
- BIN_TO_BCD(min);
- BIN_TO_BCD(hrs);
- BIN_TO_BCD(day);
- BIN_TO_BCD(mon);
- BIN_TO_BCD(yrs);
+ sec = bin2bcd(sec);
+ min = bin2bcd(min);
+ hrs = bin2bcd(hrs);
+ day = bin2bcd(day);
+ mon = bin2bcd(mon);
+ yrs = bin2bcd(yrs);
}
save_control = CMOS_READ(RTC_CONTROL);
diff --git a/include/asm-m68k/thread_info.h b/include/asm-m68k/thread_info.h
index abc002798a2..af0fda46e94 100644
--- a/include/asm-m68k/thread_info.h
+++ b/include/asm-m68k/thread_info.h
@@ -52,5 +52,6 @@ struct thread_info {
#define TIF_DELAYED_TRACE 14 /* single step a syscall */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
#define TIF_MEMDIE 16
+#define TIF_FREEZE 17 /* thread is freezing for suspend */
#endif /* _ASM_M68K_THREAD_INFO_H */
diff --git a/include/asm-parisc/thread_info.h b/include/asm-parisc/thread_info.h
index 9f812741c35..0407959da48 100644
--- a/include/asm-parisc/thread_info.h
+++ b/include/asm-parisc/thread_info.h
@@ -58,6 +58,7 @@ struct thread_info {
#define TIF_32BIT 4 /* 32 bit binary */
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
+#define TIF_FREEZE 7 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -65,6 +66,7 @@ struct thread_info {
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_32BIT (1 << TIF_32BIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
#define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_RESTORE_SIGMASK)
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index e07e72846c7..62274ab9471 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -69,6 +69,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_MEMDIE 5
#define TIF_SYSCALL_AUDIT 6
#define TIF_RESTORE_SIGMASK 7
+#define TIF_FREEZE 16 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
@@ -77,5 +78,6 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1 << TIF_FREEZE)
#endif
diff --git a/include/asm-xtensa/thread_info.h b/include/asm-xtensa/thread_info.h
index 7e4131dd546..0f4fe1faf9b 100644
--- a/include/asm-xtensa/thread_info.h
+++ b/include/asm-xtensa/thread_info.h
@@ -134,6 +134,7 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_MEMDIE 5
#define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+#define TIF_FREEZE 17 /* is freezing for suspend */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
@@ -142,6 +143,7 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_IRET (1<<TIF_IRET)
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_FREEZE (1<<TIF_FREEZE)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index bf9aca548f1..e531783e5d7 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -183,6 +183,7 @@ unifdef-y += auto_fs.h
unifdef-y += auxvec.h
unifdef-y += binfmts.h
unifdef-y += blktrace_api.h
+unifdef-y += byteorder.h
unifdef-y += capability.h
unifdef-y += capi.h
unifdef-y += cciss_ioctl.h
@@ -340,6 +341,7 @@ unifdef-y += soundcard.h
unifdef-y += stat.h
unifdef-y += stddef.h
unifdef-y += string.h
+unifdef-y += swab.h
unifdef-y += synclink.h
unifdef-y += sysctl.h
unifdef-y += tcp.h
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 0a24d5550eb..bee52abb8a4 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -175,6 +175,8 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
* BDI_CAP_READ_MAP: Can be mapped for reading
* BDI_CAP_WRITE_MAP: Can be mapped for writing
* BDI_CAP_EXEC_MAP: Can be mapped for execution
+ *
+ * BDI_CAP_SWAP_BACKED: Count shmem/tmpfs objects as swap-backed.
*/
#define BDI_CAP_NO_ACCT_DIRTY 0x00000001
#define BDI_CAP_NO_WRITEBACK 0x00000002
@@ -184,6 +186,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio);
#define BDI_CAP_WRITE_MAP 0x00000020
#define BDI_CAP_EXEC_MAP 0x00000040
#define BDI_CAP_NO_ACCT_WB 0x00000080
+#define BDI_CAP_SWAP_BACKED 0x00000100
#define BDI_CAP_VMFLAGS \
(BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP)
@@ -248,6 +251,11 @@ static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi)
BDI_CAP_NO_WRITEBACK));
}
+static inline bool bdi_cap_swap_backed(struct backing_dev_info *bdi)
+{
+ return bdi->capabilities & BDI_CAP_SWAP_BACKED;
+}
+
static inline bool mapping_cap_writeback_dirty(struct address_space *mapping)
{
return bdi_cap_writeback_dirty(mapping->backing_dev_info);
@@ -258,4 +266,9 @@ static inline bool mapping_cap_account_dirty(struct address_space *mapping)
return bdi_cap_account_dirty(mapping->backing_dev_info);
}
+static inline bool mapping_cap_swap_backed(struct address_space *mapping)
+{
+ return bdi_cap_swap_backed(mapping->backing_dev_info);
+}
+
#endif /* _LINUX_BACKING_DEV_H */
diff --git a/include/linux/bcd.h b/include/linux/bcd.h
index 7ac518e3c15..22ea563ba3e 100644
--- a/include/linux/bcd.h
+++ b/include/linux/bcd.h
@@ -1,12 +1,3 @@
-/* Permission is hereby granted to copy, modify and redistribute this code
- * in terms of the GNU Library General Public License, Version 2 or later,
- * at your option.
- */
-
-/* macros to translate to/from binary and binary-coded decimal (frequently
- * found in RTC chips).
- */
-
#ifndef _BCD_H
#define _BCD_H
@@ -15,11 +6,4 @@
unsigned bcd2bin(unsigned char val) __attribute_const__;
unsigned char bin2bcd(unsigned val) __attribute_const__;
-#define BCD2BIN(val) bcd2bin(val)
-#define BIN2BCD(val) bin2bcd(val)
-
-/* backwards compat */
-#define BCD_TO_BIN(val) ((val)=BCD2BIN(val))
-#define BIN_TO_BCD(val) ((val)=BIN2BCD(val))
-
#endif /* _BCD_H */
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 89781fd4885..1abfe664c44 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -110,7 +110,6 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits);
extern int bitmap_scnprintf(char *buf, unsigned int len,
const unsigned long *src, int nbits);
-extern int bitmap_scnprintf_len(unsigned int nr_bits);
extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user,
unsigned long *dst, int nbits);
extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen,
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index eadaab44015..3ce64b90118 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -322,7 +322,7 @@ static inline void wait_on_buffer(struct buffer_head *bh)
static inline int trylock_buffer(struct buffer_head *bh)
{
- return likely(!test_and_set_bit(BH_Lock, &bh->b_state));
+ return likely(!test_and_set_bit_lock(BH_Lock, &bh->b_state));
}
static inline void lock_buffer(struct buffer_head *bh)
diff --git a/include/linux/byteorder/Kbuild b/include/linux/byteorder/Kbuild
index 1133d5f9d81..fbaa7f9cee3 100644
--- a/include/linux/byteorder/Kbuild
+++ b/include/linux/byteorder/Kbuild
@@ -1,3 +1,4 @@
unifdef-y += big_endian.h
unifdef-y += little_endian.h
unifdef-y += swab.h
+unifdef-y += swabb.h
diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index 44f95b92393..1cba3f3efe5 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -10,6 +10,7 @@
#include <linux/types.h>
#include <linux/byteorder/swab.h>
+#include <linux/byteorder/swabb.h>
#define __constant_htonl(x) ((__force __be32)(__u32)(x))
#define __constant_ntohl(x) ((__force __u32)(__be32)(x))
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index 4cc170a3176..cedc1b5a289 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -10,6 +10,7 @@
#include <linux/types.h>
#include <linux/byteorder/swab.h>
+#include <linux/byteorder/swabb.h>
#define __constant_htonl(x) ((__force __be32)___constant_swab32((x)))
#define __constant_ntohl(x) ___constant_swab32((__force __be32)(x))
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 30934e4bfaa..8b00f6643e9 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -9,12 +9,12 @@
*/
#include <linux/sched.h>
-#include <linux/kref.h>
#include <linux/cpumask.h>
#include <linux/nodemask.h>
#include <linux/rcupdate.h>
#include <linux/cgroupstats.h>
#include <linux/prio_heap.h>
+#include <linux/rwsem.h>
#ifdef CONFIG_CGROUPS
@@ -137,6 +137,15 @@ struct cgroup {
* release_list_lock
*/
struct list_head release_list;
+
+ /* pids_mutex protects the fields below */
+ struct rw_semaphore pids_mutex;
+ /* Array of process ids in the cgroup */
+ pid_t *tasks_pids;
+ /* How many files are using the current tasks_pids array */
+ int pids_use_count;
+ /* Length of the current tasks_pids array */
+ int pids_length;
};
/* A css_set is a structure holding pointers to a set of
@@ -149,7 +158,7 @@ struct cgroup {
struct css_set {
/* Reference count */
- struct kref ref;
+ atomic_t refcount;
/*
* List running through all cgroup groups in the same hash
@@ -394,6 +403,9 @@ void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it);
int cgroup_scan_tasks(struct cgroup_scanner *scan);
int cgroup_attach_task(struct cgroup *, struct task_struct *);
+void cgroup_mm_owner_callbacks(struct task_struct *old,
+ struct task_struct *new);
+
#else /* !CONFIG_CGROUPS */
static inline int cgroup_init_early(void) { return 0; }
@@ -412,15 +424,9 @@ static inline int cgroupstats_build(struct cgroupstats *stats,
return -EINVAL;
}
+static inline void cgroup_mm_owner_callbacks(struct task_struct *old,
+ struct task_struct *new) {}
+
#endif /* !CONFIG_CGROUPS */
-#ifdef CONFIG_MM_OWNER
-extern void
-cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new);
-#else /* !CONFIG_MM_OWNER */
-static inline void
-cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new)
-{
-}
-#endif /* CONFIG_MM_OWNER */
#endif /* _LINUX_CGROUP_H */
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index e2877454ec8..9c22396e8b5 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -48,3 +48,9 @@ SUBSYS(devices)
#endif
/* */
+
+#ifdef CONFIG_CGROUP_FREEZER
+SUBSYS(freezer)
+#endif
+
+/* */
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 025e4f57510..0acf3b737e2 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -8,12 +8,9 @@
#include <linux/proc_fs.h>
#define ELFCORE_ADDR_MAX (-1ULL)
+#define ELFCORE_ADDR_ERR (-2ULL)
-#ifdef CONFIG_PROC_VMCORE
extern unsigned long long elfcorehdr_addr;
-#else
-static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
-#endif
extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
unsigned long, int);
@@ -28,10 +25,43 @@ extern struct proc_dir_entry *proc_vmcore;
#define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x))
+/*
+ * is_kdump_kernel() checks whether this kernel is booting after a panic of
+ * previous kernel or not. This is determined by checking if previous kernel
+ * has passed the elf core header address on command line.
+ *
+ * This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will
+ * return 1 if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic of
+ * previous kernel.
+ */
+
static inline int is_kdump_kernel(void)
{
return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0;
}
+
+/* is_vmcore_usable() checks if the kernel is booting after a panic and
+ * the vmcore region is usable.
+ *
+ * This makes use of the fact that due to alignment -2ULL is not
+ * a valid pointer, much in the vain of IS_ERR(), except
+ * dealing directly with an unsigned long long rather than a pointer.
+ */
+
+static inline int is_vmcore_usable(void)
+{
+ return is_kdump_kernel() && elfcorehdr_addr != ELFCORE_ADDR_ERR ? 1 : 0;
+}
+
+/* vmcore_unusable() marks the vmcore as unusable,
+ * without disturbing the logic of is_kdump_kernel()
+ */
+
+static inline void vmcore_unusable(void)
+{
+ if (is_kdump_kernel())
+ elfcorehdr_addr = ELFCORE_ADDR_ERR;
+}
#else /* !CONFIG_CRASH_DUMP */
static inline int is_kdump_kernel(void) { return 0; }
#endif /* CONFIG_CRASH_DUMP */
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 159d9b476cd..d14f0291848 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -380,6 +380,8 @@ struct ext3_inode {
#define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */
#define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
#define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
+#define EXT3_MOUNT_DATA_ERR_ABORT 0x400000 /* Abort on file data write
+ * error in ordered mode */
/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
#ifndef _LINUX_EXT2_FS_H
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 531ccd5f596..75a81eaf343 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -808,6 +808,7 @@ struct fb_tile_ops {
struct fb_info {
int node;
int flags;
+ struct mutex lock; /* Lock for open/release/ioctl funcs */
struct fb_var_screeninfo var; /* Current var */
struct fb_fix_screeninfo fix; /* Current fix */
struct fb_monspecs monspecs; /* Current Monitor specs */
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index deddeedf325..8f225339eee 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -6,7 +6,7 @@
#include <linux/sched.h>
#include <linux/wait.h>
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FREEZER
/*
* Check if a process has been frozen
*/
@@ -39,28 +39,18 @@ static inline void clear_freeze_flag(struct task_struct *p)
clear_tsk_thread_flag(p, TIF_FREEZE);
}
+static inline bool should_send_signal(struct task_struct *p)
+{
+ return !(p->flags & PF_FREEZER_NOSIG);
+}
+
/*
* Wake up a frozen process
- *
- * task_lock() is taken to prevent the race with refrigerator() which may
- * occur if the freezing of tasks fails. Namely, without the lock, if the
- * freezing of tasks failed, thaw_tasks() might have run before a task in
- * refrigerator() could call frozen_process(), in which case the task would be
- * frozen and no one would thaw it.
*/
-static inline int thaw_process(struct task_struct *p)
-{
- task_lock(p);
- if (frozen(p)) {
- p->flags &= ~PF_FROZEN;
- task_unlock(p);
- wake_up_process(p);
- return 1;
- }
- clear_freeze_flag(p);
- task_unlock(p);
- return 0;
-}
+extern int __thaw_process(struct task_struct *p);
+
+/* Takes and releases task alloc lock using task_lock() */
+extern int thaw_process(struct task_struct *p);
extern void refrigerator(void);
extern int freeze_processes(void);
@@ -75,6 +65,15 @@ static inline int try_to_freeze(void)
return 0;
}
+extern bool freeze_task(struct task_struct *p, bool sig_only);
+extern void cancel_freezing(struct task_struct *p);
+
+#ifdef CONFIG_CGROUP_FREEZER
+extern int cgroup_frozen(struct task_struct *task);
+#else /* !CONFIG_CGROUP_FREEZER */
+static inline int cgroup_frozen(struct task_struct *task) { return 0; }
+#endif /* !CONFIG_CGROUP_FREEZER */
+
/*
* The PF_FREEZER_SKIP flag should be set by a vfork parent right before it
* calls wait_for_completion(&vfork) and reset right after it returns from this
@@ -166,7 +165,7 @@ static inline void set_freezable_with_signal(void)
} while (try_to_freeze()); \
__retval; \
})
-#else /* !CONFIG_PM_SLEEP */
+#else /* !CONFIG_FREEZER */
static inline int frozen(struct task_struct *p) { return 0; }
static inline int freezing(struct task_struct *p) { return 0; }
static inline void set_freeze_flag(struct task_struct *p) {}
@@ -191,6 +190,6 @@ static inline void set_freezable_with_signal(void) {}
#define wait_event_freezable_timeout(wq, condition, timeout) \
wait_event_interruptible_timeout(wq, condition, timeout)
-#endif /* !CONFIG_PM_SLEEP */
+#endif /* !CONFIG_FREEZER */
#endif /* FREEZER_H_INCLUDED */
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 7ebbcb1c9ba..35d4f6342fa 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -816,6 +816,9 @@ struct journal_s
#define JFS_FLUSHED 0x008 /* The journal superblock has been flushed */
#define JFS_LOADED 0x010 /* The journal superblock has been loaded */
#define JFS_BARRIER 0x020 /* Use IDE barriers */
+#define JFS_ABORT_ON_SYNCDATA_ERR 0x040 /* Abort the journal on file
+ * data write error in ordered
+ * mode */
/*
* Function declarations for the journaling transaction and buffer
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index fdf3967e139..1fbe14d3952 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -27,16 +27,13 @@ struct mm_struct;
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-#define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0)
-
-extern struct page_cgroup *page_get_page_cgroup(struct page *page);
extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask);
extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm,
gfp_t gfp_mask);
+extern void mem_cgroup_move_lists(struct page *page, enum lru_list lru);
extern void mem_cgroup_uncharge_page(struct page *page);
extern void mem_cgroup_uncharge_cache_page(struct page *page);
-extern void mem_cgroup_move_lists(struct page *page, bool active);
extern int mem_cgroup_shrink_usage