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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-07 21:38:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-07 21:38:00 -0700
commitb66484cd74706fa8681d051840fe4b18a3da40ff (patch)
treee8215e7c25661d25f84abc4b98140c2062d6d5de /include
parentc913fc4146ba7c280e074558d0a461e5c6f07c8a (diff)
parent05fd007e46296afb24d15c7d589d535e5a5b9d5c (diff)
downloadlinux-b66484cd74706fa8681d051840fe4b18a3da40ff.tar.bz2
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - fsnotify updates - ocfs2 updates - all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (127 commits) console: don't prefer first registered if DT specifies stdout-path cred: simpler, 1D supplementary groups CREDITS: update Pavel's information, add GPG key, remove snail mail address mailmap: add Johan Hovold .gitattributes: set git diff driver for C source code files uprobes: remove function declarations from arch/{mips,s390} spelling.txt: "modeled" is spelt correctly nmi_backtrace: generate one-line reports for idle cpus arch/tile: adopt the new nmi_backtrace framework nmi_backtrace: do a local dump_stack() instead of a self-NMI nmi_backtrace: add more trigger_*_cpu_backtrace() methods min/max: remove sparse warnings when they're nested Documentation/filesystems/proc.txt: add more description for maps/smaps mm, proc: fix region lost in /proc/self/smaps proc: fix timerslack_ns CAP_SYS_NICE check when adjusting self proc: add LSM hook checks to /proc/<tid>/timerslack_ns proc: relax /proc/<tid>/timerslack_ns capability requirements meminfo: break apart a very long seq_printf with #ifdefs seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char proc: faster /proc/*/status ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/pgtable.h3
-rw-r--r--include/asm-generic/vmlinux.lds.h6
-rw-r--r--include/linux/bitops.h36
-rw-r--r--include/linux/bootmem.h9
-rw-r--r--include/linux/compaction.h40
-rw-r--r--include/linux/console.h6
-rw-r--r--include/linux/cpu.h5
-rw-r--r--include/linux/cred.h11
-rw-r--r--include/linux/fsnotify_backend.h3
-rw-r--r--include/linux/huge_mm.h15
-rw-r--r--include/linux/hugetlb.h8
-rw-r--r--include/linux/jiffies.h4
-rw-r--r--include/linux/kernel.h48
-rw-r--r--include/linux/memblock.h1
-rw-r--r--include/linux/memcontrol.h21
-rw-r--r--include/linux/mm.h44
-rw-r--r--include/linux/mm_types.h2
-rw-r--r--include/linux/nmi.h31
-rw-r--r--include/linux/oom.h46
-rw-r--r--include/linux/page_ext.h8
-rw-r--r--include/linux/page_owner.h2
-rw-r--r--include/linux/pagemap.h14
-rw-r--r--include/linux/sched.h22
-rw-r--r--include/linux/seq_file.h4
-rw-r--r--include/linux/swap.h11
-rw-r--r--include/linux/writeback.h1
-rw-r--r--include/trace/events/compaction.h2
27 files changed, 250 insertions, 153 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index d4458b6dbfb4..c4f8fd2fd384 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -800,6 +800,9 @@ static inline int pmd_clear_huge(pmd_t *pmd)
#endif
#endif
+struct file;
+int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t *vma_prot);
#endif /* !__ASSEMBLY__ */
#ifndef io_remap_pfn_range
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 24563970ff7b..3e42bcdd014b 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -454,6 +454,12 @@
*(.spinlock.text) \
VMLINUX_SYMBOL(__lock_text_end) = .;
+#define CPUIDLE_TEXT \
+ ALIGN_FUNCTION(); \
+ VMLINUX_SYMBOL(__cpuidle_text_start) = .; \
+ *(.cpuidle.text) \
+ VMLINUX_SYMBOL(__cpuidle_text_end) = .;
+
#define KPROBES_TEXT \
ALIGN_FUNCTION(); \
VMLINUX_SYMBOL(__kprobes_text_start) = .; \
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 299e76b59fe9..a83c822c35c2 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -65,16 +65,6 @@ static inline int get_bitmask_order(unsigned int count)
return order; /* We could be slightly more clever with -1 here... */
}
-static inline int get_count_order(unsigned int count)
-{
- int order;
-
- order = fls(count) - 1;
- if (count & (count - 1))
- order++;
- return order;
-}
-
static __always_inline unsigned long hweight_long(unsigned long w)
{
return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
@@ -191,6 +181,32 @@ static inline unsigned fls_long(unsigned long l)
return fls64(l);
}
+static inline int get_count_order(unsigned int count)
+{
+ int order;
+
+ order = fls(count) - 1;
+ if (count & (count - 1))
+ order++;
+ return order;
+}
+
+/**
+ * get_count_order_long - get order after rounding @l up to power of 2
+ * @l: parameter
+ *
+ * it is same as get_count_order() but with long type parameter
+ */
+static inline int get_count_order_long(unsigned long l)
+{
+ if (l == 0UL)
+ return -1;
+ else if (l & (l - 1UL))
+ return (int)fls_long(l);
+ else
+ return (int)fls_long(l) - 1;
+}
+
/**
* __ffs64 - find first set bit in a 64 bit word
* @word: The 64 bit word
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index f9be32691718..962164d36506 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -7,6 +7,7 @@
#include <linux/mmzone.h>
#include <linux/mm_types.h>
#include <asm/dma.h>
+#include <asm/processor.h>
/*
* simple boot-time physical memory area allocator.
@@ -119,6 +120,10 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
#define BOOTMEM_LOW_LIMIT __pa(MAX_DMA_ADDRESS)
#endif
+#ifndef ARCH_LOW_ADDRESS_LIMIT
+#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
+#endif
+
#define alloc_bootmem(x) \
__alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
#define alloc_bootmem_align(x, align) \
@@ -180,10 +185,6 @@ static inline void * __init memblock_virt_alloc_nopanic(
NUMA_NO_NODE);
}
-#ifndef ARCH_LOW_ADDRESS_LIMIT
-#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
-#endif
-
static inline void * __init memblock_virt_alloc_low(
phys_addr_t size, phys_addr_t align)
{
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index d4e106b5dc27..0d8415820fc3 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -6,8 +6,10 @@
* Lower value means higher priority, analogically to reclaim priority.
*/
enum compact_priority {
+ COMPACT_PRIO_SYNC_FULL,
+ MIN_COMPACT_PRIORITY = COMPACT_PRIO_SYNC_FULL,
COMPACT_PRIO_SYNC_LIGHT,
- MIN_COMPACT_PRIORITY = COMPACT_PRIO_SYNC_LIGHT,
+ MIN_COMPACT_COSTLY_PRIORITY = COMPACT_PRIO_SYNC_LIGHT,
DEF_COMPACT_PRIORITY = COMPACT_PRIO_SYNC_LIGHT,
COMPACT_PRIO_ASYNC,
INIT_COMPACT_PRIORITY = COMPACT_PRIO_ASYNC
@@ -49,14 +51,37 @@ enum compact_result {
COMPACT_CONTENDED,
/*
- * direct compaction partially compacted a zone and there might be
- * suitable pages
+ * direct compaction terminated after concluding that the allocation
+ * should now succeed
*/
- COMPACT_PARTIAL,
+ COMPACT_SUCCESS,
};
struct alloc_context; /* in mm/internal.h */
+/*
+ * Number of free order-0 pages that should be available above given watermark
+ * to make sure compaction has reasonable chance of not running out of free
+ * pages that it needs to isolate as migration target during its work.
+ */
+static inline unsigned long compact_gap(unsigned int order)
+{
+ /*
+ * Although all the isolations for migration are temporary, compaction
+ * free scanner may have up to 1 << order pages on its list and then
+ * try to split an (order - 1) free page. At that point, a gap of
+ * 1 << order might not be enough, so it's safer to require twice that
+ * amount. Note that the number of pages on the list is also
+ * effectively limited by COMPACT_CLUSTER_MAX, as that's the maximum
+ * that the migrate scanner can have isolated on migrate list, and free
+ * scanner is only invoked when the number of isolated free pages is
+ * lower than that. But it's not worth to complicate the formula here
+ * as a bigger gap for higher orders than strictly necessary can also
+ * improve chances of compaction success.
+ */
+ return 2UL << order;
+}
+
#ifdef CONFIG_COMPACTION
extern int sysctl_compact_memory;
extern int sysctl_compaction_handler(struct ctl_table *table, int write,
@@ -70,7 +95,6 @@ extern int fragmentation_index(struct zone *zone, unsigned int order);
extern enum compact_result try_to_compact_pages(gfp_t gfp_mask,
unsigned int order, unsigned int alloc_flags,
const struct alloc_context *ac, enum compact_priority prio);
-extern void compact_pgdat(pg_data_t *pgdat, int order);
extern void reset_isolation_suitable(pg_data_t *pgdat);
extern enum compact_result compaction_suitable(struct zone *zone, int order,
unsigned int alloc_flags, int classzone_idx);
@@ -89,7 +113,7 @@ static inline bool compaction_made_progress(enum compact_result result)
* that the compaction successfully isolated and migrated some
* pageblocks.
*/
- if (result == COMPACT_PARTIAL)
+ if (result == COMPACT_SUCCESS)
return true;
return false;
@@ -154,10 +178,6 @@ extern void kcompactd_stop(int nid);
extern void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx);
#else
-static inline void compact_pgdat(pg_data_t *pgdat, int order)
-{
-}
-
static inline void reset_isolation_suitable(pg_data_t *pgdat)
{
}
diff --git a/include/linux/console.h b/include/linux/console.h
index d530c4627e54..3672809234a7 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -173,6 +173,12 @@ static inline void console_sysfs_notify(void)
#endif
extern bool console_suspend_enabled;
+#ifdef CONFIG_OF
+extern void console_set_by_of(void);
+#else
+static inline void console_set_by_of(void) {}
+#endif
+
/* Suspend and resume console messages over PM events */
extern void suspend_console(void);
extern void resume_console(void);
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 7572d9e9dced..b886dc17f2f3 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -231,6 +231,11 @@ void cpu_startup_entry(enum cpuhp_state state);
void cpu_idle_poll_ctrl(bool enable);
+/* Attach to any functions which should be considered cpuidle. */
+#define __cpuidle __attribute__((__section__(".cpuidle.text")))
+
+bool cpu_in_idle(unsigned long pc);
+
void arch_cpu_idle(void);
void arch_cpu_idle_prepare(void);
void arch_cpu_idle_enter(void);
diff --git a/include/linux/cred.h b/include/linux/cred.h
index 257db64562e5..f0e70a1bb3ac 100644
--- a/include/linux/cred.h
+++ b/include/linux/cred.h
@@ -26,15 +26,10 @@ struct inode;
/*
* COW Supplementary groups list
*/
-#define NGROUPS_SMALL 32
-#define NGROUPS_PER_BLOCK ((unsigned int)(PAGE_SIZE / sizeof(kgid_t)))
-
struct group_info {
atomic_t usage;
int ngroups;
- int nblocks;
- kgid_t small_block[NGROUPS_SMALL];
- kgid_t *blocks[0];
+ kgid_t gid[0];
};
/**
@@ -88,10 +83,6 @@ extern void set_groups(struct cred *, struct group_info *);
extern int groups_search(const struct group_info *, kgid_t);
extern bool may_setgroups(void);
-/* access the groups "array" with this macro */
-#define GROUP_AT(gi, i) \
- ((gi)->blocks[(i) / NGROUPS_PER_BLOCK][(i) % NGROUPS_PER_BLOCK])
-
/*
* The security context of a task
*
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 7268ed076be8..79467b239fcf 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -135,7 +135,7 @@ struct fsnotify_group {
const struct fsnotify_ops *ops; /* how this group handles things */
/* needed to send notification to userspace */
- struct mutex notification_mutex; /* protect the notification_list */
+ spinlock_t notification_lock; /* protect the notification_list */
struct list_head notification_list; /* list of event_holder this group needs to send to userspace */
wait_queue_head_t notification_waitq; /* read() on the notification file blocks on this waitq */
unsigned int q_len; /* events on the queue */
@@ -177,7 +177,6 @@ struct fsnotify_group {
struct fanotify_group_private_data {
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
/* allows a group to block waiting for a userspace response */
- spinlock_t access_lock;
struct list_head access_list;
wait_queue_head_t access_waitq;
#endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 6f14de45b5ce..9b9f65d99873 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -87,6 +87,10 @@ extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
extern unsigned long transparent_hugepage_flags;
+extern unsigned long thp_get_unmapped_area(struct file *filp,
+ unsigned long addr, unsigned long len, unsigned long pgoff,
+ unsigned long flags);
+
extern void prep_transhuge_page(struct page *page);
extern void free_transhuge_page(struct page *page);
@@ -152,8 +156,8 @@ static inline bool is_huge_zero_pmd(pmd_t pmd)
return is_huge_zero_page(pmd_page(pmd));
}
-struct page *get_huge_zero_page(void);
-void put_huge_zero_page(void);
+struct page *mm_get_huge_zero_page(struct mm_struct *mm);
+void mm_put_huge_zero_page(struct mm_struct *mm);
#define mk_huge_pmd(page, prot) pmd_mkhuge(mk_pmd(page, prot))
@@ -169,6 +173,9 @@ void put_huge_zero_page(void);
static inline void prep_transhuge_page(struct page *page) {}
#define transparent_hugepage_flags 0UL
+
+#define thp_get_unmapped_area NULL
+
static inline int
split_huge_page_to_list(struct page *page, struct list_head *list)
{
@@ -213,9 +220,9 @@ static inline bool is_huge_zero_page(struct page *page)
return false;
}
-static inline void put_huge_zero_page(void)
+static inline void mm_put_huge_zero_page(struct mm_struct *mm)
{
- BUILD_BUG();
+ return;
}
static inline struct page *follow_devmap_pmd(struct vm_area_struct *vma,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index c26d4638f665..48c76d612d40 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -90,7 +90,7 @@ int dequeue_hwpoisoned_huge_page(struct page *page);
bool isolate_huge_page(struct page *page, struct list_head *list);
void putback_active_hugepage(struct page *page);
void free_huge_page(struct page *page);
-void hugetlb_fix_reserve_counts(struct inode *inode, bool restore_reserve);
+void hugetlb_fix_reserve_counts(struct inode *inode);
extern struct mutex *hugetlb_fault_mutex_table;
u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm,
struct vm_area_struct *vma,
@@ -450,8 +450,8 @@ static inline pgoff_t basepage_index(struct page *page)
return __basepage_index(page);
}
-extern void dissolve_free_huge_pages(unsigned long start_pfn,
- unsigned long end_pfn);
+extern int dissolve_free_huge_pages(unsigned long start_pfn,
+ unsigned long end_pfn);
static inline bool hugepage_migration_supported(struct hstate *h)
{
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
@@ -518,7 +518,7 @@ static inline pgoff_t basepage_index(struct page *page)
{
return page->index;
}
-#define dissolve_free_huge_pages(s, e) do {} while (0)
+#define dissolve_free_huge_pages(s, e) 0
#define hugepage_migration_supported(h) false
static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 5fdc55312334..589d14e970ad 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -150,15 +150,19 @@ static inline u64 get_jiffies_64(void)
/* time_is_before_jiffies(a) return true if a is before jiffies */
#define time_is_before_jiffies(a) time_after(jiffies, a)
+#define time_is_before_jiffies64(a) time_after64(get_jiffies_64(), a)
/* time_is_after_jiffies(a) return true if a is after jiffies */
#define time_is_after_jiffies(a) time_before(jiffies, a)
+#define time_is_after_jiffies64(a) time_before64(get_jiffies_64(), a)
/* time_is_before_eq_jiffies(a) return true if a is before or equal to jiffies*/
#define time_is_before_eq_jiffies(a) time_after_eq(jiffies, a)
+#define time_is_before_eq_jiffies64(a) time_after_eq64(get_jiffies_64(), a)
/* time_is_after_eq_jiffies(a) return true if a is after or equal to jiffies*/
#define time_is_after_eq_jiffies(a) time_before_eq(jiffies, a)
+#define time_is_after_eq_jiffies64(a) time_before_eq64(get_jiffies_64(), a)
/*
* Have the 32 bit jiffies value wrap 5 minutes after boot
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 74fd6f05bc5b..bc6ed52a39b9 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -733,17 +733,25 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
* strict type-checking.. See the
* "unnecessary" pointer comparison.
*/
-#define min(x, y) ({ \
- typeof(x) _min1 = (x); \
- typeof(y) _min2 = (y); \
- (void) (&_min1 == &_min2); \
- _min1 < _min2 ? _min1 : _min2; })
-
-#define max(x, y) ({ \
- typeof(x) _max1 = (x); \
- typeof(y) _max2 = (y); \
- (void) (&_max1 == &_max2); \
- _max1 > _max2 ? _max1 : _max2; })
+#define __min(t1, t2, min1, min2, x, y) ({ \
+ t1 min1 = (x); \
+ t2 min2 = (y); \
+ (void) (&min1 == &min2); \
+ min1 < min2 ? min1 : min2; })
+#define min(x, y) \
+ __min(typeof(x), typeof(y), \
+ __UNIQUE_ID(min1_), __UNIQUE_ID(min2_), \
+ x, y)
+
+#define __max(t1, t2, max1, max2, x, y) ({ \
+ t1 max1 = (x); \
+ t2 max2 = (y); \
+ (void) (&max1 == &max2); \
+ max1 > max2 ? max1 : max2; })
+#define max(x, y) \
+ __max(typeof(x), typeof(y), \
+ __UNIQUE_ID(max1_), __UNIQUE_ID(max2_), \
+ x, y)
#define min3(x, y, z) min((typeof(x))min(x, y), z)
#define max3(x, y, z) max((typeof(x))max(x, y), z)
@@ -775,15 +783,15 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
*
* Or not use min/max/clamp at all, of course.
*/
-#define min_t(type, x, y) ({ \
- type __min1 = (x); \
- type __min2 = (y); \
- __min1 < __min2 ? __min1: __min2; })
-
-#define max_t(type, x, y) ({ \
- type __max1 = (x); \
- type __max2 = (y); \
- __max1 > __max2 ? __max1: __max2; })
+#define min_t(type, x, y) \
+ __min(type, type, \
+ __UNIQUE_ID(min1_), __UNIQUE_ID(min2_), \
+ x, y)
+
+#define max_t(type, x, y) \
+ __max(type, type, \
+ __UNIQUE_ID(min1_), __UNIQUE_ID(min2_), \
+ x, y)
/**
* clamp_t - return a value clamped to a given range using a given type
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 2925da23505d..5b759c9acf97 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -328,6 +328,7 @@ phys_addr_t memblock_alloc_base(phys_addr_t size, phys_addr_t align,
phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
phys_addr_t max_addr);
phys_addr_t memblock_phys_mem_size(void);
+phys_addr_t memblock_reserved_size(void);
phys_addr_t memblock_mem_size(unsigned long limit_pfn);
phys_addr_t memblock_start_of_DRAM(void);
phys_addr_t memblock_end_of_DRAM(void);
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 5d8ca6e02e39..61d20c17f3b7 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -366,6 +366,8 @@ struct mem_cgroup *mem_cgroup_iter(struct mem_cgroup *,
struct mem_cgroup *,
struct mem_cgroup_reclaim_cookie *);
void mem_cgroup_iter_break(struct mem_cgroup *, struct mem_cgroup *);
+int mem_cgroup_scan_tasks(struct mem_cgroup *,
+ int (*)(struct task_struct *, void *), void *);
static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg)
{
@@ -446,6 +448,8 @@ unsigned long mem_cgroup_get_lru_size(struct lruvec *lruvec, enum lru_list lru)
void mem_cgroup_handle_over_high(void);
+unsigned long mem_cgroup_get_limit(struct mem_cgroup *memcg);
+
void mem_cgroup_print_oom_info(struct mem_cgroup *memcg,
struct task_struct *p);
@@ -639,6 +643,12 @@ static inline void mem_cgroup_iter_break(struct mem_cgroup *root,
{
}
+static inline int mem_cgroup_scan_tasks(struct mem_cgroup *memcg,
+ int (*fn)(struct task_struct *, void *), void *arg)
+{
+ return 0;
+}
+
static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg)
{
return 0;
@@ -669,6 +679,11 @@ mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
return 0;
}
+static inline unsigned long mem_cgroup_get_limit(struct mem_cgroup *memcg)
+{
+ return 0;
+}
+
static inline void
mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p)
{
@@ -758,13 +773,13 @@ static inline void mem_cgroup_wb_stats(struct bdi_writeback *wb,
#endif /* CONFIG_CGROUP_WRITEBACK */
struct sock;
-void sock_update_memcg(struct sock *sk);
-void sock_release_memcg(struct sock *sk);
bool mem_cgroup_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages);
void mem_cgroup_uncharge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages);
#ifdef CONFIG_MEMCG
extern struct static_key_false memcg_sockets_enabled_key;
#define mem_cgroup_sockets_enabled static_branch_unlikely(&memcg_sockets_enabled_key)
+void mem_cgroup_sk_alloc(struct sock *sk);
+void mem_cgroup_sk_free(struct sock *sk);
static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
{
if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && memcg->tcpmem_pressure)
@@ -777,6 +792,8 @@ static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
}
#else
#define mem_cgroup_sockets_enabled 0
+static inline void mem_cgroup_sk_alloc(struct sock *sk) { };
+static inline void mem_cgroup_sk_free(struct sock *sk) { };
static inline bool mem_cgroup_under_socket_pressure(struct mem_cgroup *memcg)
{
return false;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5f14534f0c90..e9caec6a51e9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -126,7 +126,7 @@ extern int overcommit_kbytes_handler(struct ctl_table *, int, void __user *,
#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
/* test whether an address (unsigned long or pointer) is aligned to PAGE_SIZE */
-#define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)addr, PAGE_SIZE)
+#define PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)(addr), PAGE_SIZE)
/*
* Linux kernel virtual memory manager primitives.
@@ -1048,28 +1048,16 @@ struct address_space *page_file_mapping(struct page *page)
return page->mapping;
}
-/*
- * Return the pagecache index of the passed page. Regular pagecache pages
- * use ->index whereas swapcache pages use ->private
- */
-static inline pgoff_t page_index(struct page *page)
-{
- if (unlikely(PageSwapCache(page)))
- return page_private(page);
- return page->index;
-}
-
extern pgoff_t __page_file_index(struct page *page);
/*
- * Return the file index of the page. Regular pagecache pages use ->index
- * whereas swapcache pages use swp_offset(->private)
+ * Return the pagecache index of the passed page. Regular pagecache pages
+ * use ->index whereas swapcache pages use swp_offset(->private)
*/
-static inline pgoff_t page_file_index(struct page *page)
+static inline pgoff_t page_index(struct page *page)
{
if (unlikely(PageSwapCache(page)))
return __page_file_index(page);
-
return page->index;
}
@@ -1197,10 +1185,10 @@ void unmap_vmas(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
* @pte_hole: if set, called for each hole at all levels
* @hugetlb_entry: if set, called for each hugetlb entry
* @test_walk: caller specific callback function to determine whether
- * we walk over the current vma or not. A positive returned
+ * we walk over the current vma or not. Returning 0
* value means "do page table walk over the current vma,"
* and a negative one means "abort current page table walk
- * right now." 0 means "skip the current vma."
+ * right now." 1 means "skip the current vma."
* @mm: mm_struct representing the target process of page table walk
* @vma: vma currently walked (NULL if walking outside vmas)
* @private: private data for callbacks' usage
@@ -1529,7 +1517,7 @@ static inline int pte_devmap(pte_t pte)
}
#endif
-int vma_wants_writenotify(struct vm_area_struct *vma);
+int vma_wants_writenotify(struct vm_area_struct *vma, pgprot_t vm_page_prot);
extern pte_t *__get_locked_pte(struct mm_struct *mm, unsigned long addr,
spinlock_t **ptl);
@@ -1924,10 +1912,12 @@ extern void show_mem(unsigned int flags);
extern long si_mem_available(void);
extern void si_meminfo(struct sysinfo * val);
extern void si_meminfo_node(struct sysinfo *val, int nid);
+#ifdef __HAVE_ARCH_RESERVED_KERNEL_PAGES
+extern unsigned long arch_reserved_kernel_pages(void);
+#endif
-extern __printf(3, 4)
-void warn_alloc_failed(gfp_t gfp_mask, unsigned int order,
- const char *fmt, ...);
+extern __printf(2, 3)
+void warn_alloc(gfp_t gfp_mask, const char *fmt, ...);
extern void setup_per_cpu_pageset(void);
@@ -1977,8 +1967,14 @@ void anon_vma_interval_tree_verify(struct anon_vma_chain *node);
/* mmap.c */
extern int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin);
-extern int vma_adjust(struct vm_area_struct *vma, unsigned long start,
- unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert);
+extern int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
+ unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert,
+ struct vm_area_struct *expand);
+static inline int vma_adjust(struct vm_area_struct *vma, unsigned long start,
+ unsigned long end, pgoff_t pgoff, struct vm_area_struct *insert)
+{
+ return __vma_adjust(vma, start, end, pgoff, insert, NULL);
+}
extern struct vm_area_struct *vma_merge(struct mm_struct *,
struct vm_area_struct *prev, unsigned long addr, unsigned long end,
unsigned long vm_flags, struct anon_vma *, struct file *, pgoff_t,
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 903200f4ec41..4a8acedf4b7d 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -515,9 +515,7 @@ struct mm_struct {
#ifdef CONFIG_HUGETLB_PAGE
atomic_long_t hugetlb_usage;
#endif
-#ifdef CONFIG_MMU
struct work_struct async_put_work;
-#endif
};
static inline void mm_init_cpumask(struct mm_struct *mm)
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 4630eeae18e0..a78c35cff1ae 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -35,21 +35,34 @@ static inline void hardlockup_detector_disable(void) {}
* base function. Return whether such support was available,
* to allow calling code to fall back to some other mechanism:
*/
-#ifdef arch_trigger_all_cpu_backtrace
+#ifdef arch_trigger_cpumask_backtrace
static inline bool trigger_all_cpu_backtrace(void)
{
- arch_trigger_all_cpu_backtrace(true);
-
+ arch_trigger_cpumask_backtrace(cpu_online_mask, false);
return true;
}
+
static inline bool trigger_allbutself_cpu_backtrace(void)
{
- arch_trigger_all_cpu_backtrace(false);
+ arch_trigger_cpumask_backtrace(cpu_online_mask, true);
+ return true;
+}
+
+static inline bool trigger_cpumask_backtrace(struct cpumask *mask)
+{
+ arch_trigger_cpumask_backtrace(mask, false);
+ return true;
+}
+
+static inline bool trigger_single_cpu_backtrace(int cpu)
+{
+ arch_trigger_cpumask_backtrace(cpumask_of(cpu), false);
return true;
}
/* generic implementation */
-void nmi_trigger_all_cpu_backtrace(bool include_self,
+void nmi_trigger_cpumask_backtrace(const cpumask_t *mask,
+ bool exclude_self,
void (*raise)(cpumask_t *mask));
bool nmi_cpu_backtrace(struct pt_regs *regs);
@@ -62,6 +75,14 @@ static inline bool trigger_allbutself_cpu_backtrace(void)
{
return false;
}
+static inline bool trigger_cpumask_backtrace(struct cpumask *mask)
+{
+ return false;
+}
+static inline bool trigger_single_cpu_backtrace(int cpu)
+{
+ return false;
+}
#endif
#ifdef CONFIG_LOCKUP_DETECTOR
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 5bc0457ee3a8..b4e36e92bc87 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -34,23 +34,11 @@ struct oom_control {
* for display purposes.
*/
const int order;
-};
-
-/*
- * Types of limitations to the nodes from which allocations may occur
- */
-enum oom_constraint {
- CONSTRAINT_NONE,
- CONSTRAINT_CPUSET,
- CONSTRAINT_MEMORY_POLICY,
- CONSTRAINT_MEMCG,
-};
-enum oom_scan_t {
- OOM_SCAN_OK, /* scan thread and find its badness */
- OOM_SCAN_CONTINUE, /* do not consider thread for oom kill */
- OOM_SCAN_ABORT, /* abort the iteration and return */
- OOM_SCAN_SELECT, /* always select this thread first */
+ /* Used by oom implementation, do not set */
+ unsigned long totalpages;
+ struct task_struct *chosen;
+ unsigned long chosen_points;
};
extern struct mutex oom_lock;
@@ -70,45 +58,27 @@ static inline bool oom_task_origin(const struct task_struct *p)
return p->signal->oom_flag_origin;
}
-extern void mark_oom_victim(struct task_struct *tsk);
-
-#ifdef CONFIG_MMU
-extern void wake_oom_reaper(struct task_struct *tsk);
-#else
-static inline void wake_oom_reaper(struct task_struct *tsk)
+static inline bool tsk_is_oom_victim(struct task_struct * tsk)
{
+ return tsk->signal->oom_mm;
}
-#endif
extern unsigned long oom_badness(struct task_struct *p,
struct mem_cgroup *memcg, const nodemask_t *nodemask,
unsigned long totalpages);
-extern void oom_kill_process(struct oom_control *oc, struct task_struct *p,
- unsigned int points, unsigned long totalpages,
- const char *message);
-
-extern void check_panic_on_oom(struct oom_control *oc,
- enum oom_constraint constraint);
-
-extern enum oom_scan_t oom_scan_process_thread(struct oom_control *oc,
- struct task_struct *task);
-
extern bool out_of_memory(struct oom_control *oc);
-extern void exit_oom_victim(struct task_struct *tsk);
+extern void exit_oom_victim(void);
extern int register_oom_notifier(struct notifier_block *nb);
extern int unregister_oom_notifier(struct notifier_block *nb);
-extern bool oom_killer_disabled;
-extern bool oom_killer_disable(void);
+extern bool oom_killer_disable(signed long timeout);
extern void oom_killer_enable(void);
extern struct task_struct *find_lock_task_mm(struct task_struct *p);
-bool task_will_free_mem(struct task_struct *task);
-
/* sysctls */
extern int sysctl_oom_dump_tasks;
extern int sysctl_oom_kill_allocating_task;
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 03f2a3e7d76d..9298c393ddaa 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -7,6 +7,8 @@
struct pglist_data;
struct page_ext_operations {
+ size_t offset;
+ size_t size;
bool (*need)(void);
void (*init)(void);
};
@@ -42,12 +44,6 @@ enum page_ext_flags {
*/
struct page_ext {
unsigned long flags;
-#ifdef CONFIG_PAGE_OWNER
- unsigned int order;
- gfp_t gfp_mask;
- int last_migrate_reason;
- depot_stack_handle_t handle;
-#endif
};
extern void pgdat_page_ext_init(struct pglist_data *pgdat);
diff --git a/include/linux/page_owner.h b/include/linux/page_owner.h
index 30583ab0ffb1..2be728d156b5 100644
--- a/include/linux/page_owner.h
+++ b/include/linux/page_owner.h
@@ -14,6 +14,8 @@ extern void __split_page_owner(struct page *page, unsigned int order);
extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
extern void __set_page_owner_migrate_reason(struct page *page, int reason);
extern void __dump_page_owner(struct page *page);
+extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
+ pg_data_t *pgdat, struct zone *zone);
static inline void reset_page_owner(struct page *page, unsigned int order)
{
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 01e84436cddf..794dbcb91084 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -25,6 +25,8 @@ enum mapping_flags {
AS_MM_ALL_LOCKS = __GFP_BITS_SHIFT + 2, /* under mm_take_all_locks() */
AS_UNEVICTABLE = __GFP_BITS_SHIFT + 3, /* e.g., ramdisk, SHM_LOCK */
AS_EXITING = __GFP_BITS_SHIFT + 4, /* final truncate in progress */
+ /* writeback related tags are not used */
+ AS_NO_WRITEBACK_TAGS = __GFP_BITS_SHIFT + 5,
};
static inline void mapping_set_error(struct address_space *mapping, int error)
@@ -64,6 +66,16 @@ static inline int mapping_exiting(struct address_space *mapping)
return test_bit(AS_EXITING, &mapping->flags);
}
+static inline void mapping_set_no_writeback_tags(struct address_space *mapping)
+{
+ set_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);
+}
+
+static inline int mapping_use_writeback_tags(struct address_space *mapping)
+{
+ return !test_bit(AS_NO_WRITEBACK_TAGS, &mapping->flags);
+}
+
static inline gfp_t mapping_gfp_mask(struct address_space * mapping)
{
return (__force gfp_t)mapping->flags & __GFP_BITS_MASK;
@@ -396,7 +408,7 @@ static inline loff_t page_offset(struct page *page)
static inline loff_t page_file_offset(struct page *page)
{
- return ((loff_t)page_file_index(page)) << PAGE_SHIFT;
+ return ((loff_t)page_index(page)) << PAGE_SHIFT;
}
extern pgoff_t linear_hugepage_index(struct vm_area_struct *vma,
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 7543a476178b..348f51b0ec92 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -524,8 +524,9 @@ static inline int get_dumpable(struct mm_struct *mm)
#define MMF_HAS_UPROBES 19 /* has uprobes */
#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */
-#define MMF_OOM_REAPED 21 /* mm has been already reaped */
-#define MMF_OOM_NOT_REAPABLE 22 /* mm couldn't be reaped */
+#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */
+#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */
+#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)
@@ -673,7 +674,6 @@ struct signal_struct {
atomic_t sigcnt;
atomic_t live;
int nr_threads;
- atomic_t oom_victims; /* # of TIF_MEDIE threads in this thread group */
struct list_head thread_head;
wait_queue_head_t wait_chldexit; /* for wait4() */
@@ -806,6 +806,8 @@ struct signal_struct {
short oom_score_adj; /* OOM kill score adjustment */
short oom_score_adj_min; /* OOM kill score adjustment min value.
* Only settable by CAP_SYS_RESOURCE. */
+ struct mm_struct *oom_mm; /* recorded mm when the thread group got
+ * killed by the oom killer */
struct mutex cred_guard_mutex; /* guard against foreign influences on
* credential calculations
@@ -2876,6 +2878,20 @@ static inline void mmdrop(struct mm_struct *mm)
__mmdrop(mm);
}
+static inline void mmdrop_async_fn(struct work_struct *work)
+{
+ struct mm_struct *mm = container_of(work, struct mm_struct, async_put_work);
+ __mmdrop(mm);
+}
+
+static inline void mmdrop_async(struct mm_struct *mm)
+{
+ if (unlikely(atomic_dec_and_test(&mm->mm_count))) {
+ INIT_WORK(&mm->async_put_work, mmdrop_async_fn);
+ schedule_work(&mm->async_put_work);
+ }
+}
+
static inline bool mmget_not_zero(struct mm_struct *mm)
{
return atomic_inc_not_zero(&mm->mm_users);
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index f3d45dd42695..e305b66a9fb9 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -117,9 +117,9 @@ __printf(2, 3)
void seq_printf(struct seq_file *m, const char *fmt, ...);
void seq_putc(struct seq_file *m, char c);
void seq_puts(struct seq_file *m, const char *s);
-void seq_put_decimal_ull(struct seq_file *m, char delimiter,
+void seq_put_decimal_ull(struct seq_file *m, const char *delimiter,
unsigned long long num);
-void seq_put_decimal_ll(struct seq_file *m, char delimiter, long long num);
+void seq_put_decimal_ll(struct seq_file *m, const char *delimiter, long long num);
void seq_escape(struct seq_file *m, const char *s, const char *esc);
void seq_hex_dump(struct seq_file *m, const char *prefix_str, int prefix_type,
diff --git a/include/linux/swap.h b/include/linux/swap.h
index e1d761463243..a56523cefb9b 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -191,6 +191,11 @@ struct percpu_cluster {
unsigned int next; /* Likely next allocation offset */
};
+struct swap_cluster_list {
+ struct swap_cluster_info head;
+ struct swap_cluster_info tail;
+};
+
/*
* The in-memory structure used to track swap areas.
*/
@@ -203,8 +208,7 @@ struct swap_info_struct {
unsigned int max; /* extent of the swap_map */
unsigned char *swap_map; /* vmalloc'ed array of usage counts */
struct swap_cluster_info *cluster_info; /* cluster info. Only for SSD */
- struct swap_cluster_info free_cluster_head; /* free cluster list head */
- struct swap_cluster_info free_cluster_tail; /* free cluster list tail */
+ struct swap_cluster_list free_clusters; /* free clusters list */
unsigned int lowest_bit; /* index of first free in swap_map */
unsigned int highest_bit; /* index of last free in swap_map */
unsigned int pages; /* total of usable pages of swap */
@@ -235,8 +239,7 @@ struct swap_info_struct {
* first.
*/
struct work_struct discard_work; /* discard worker */
- struct swap_cluster_info discard_cluster_head; /* list head of discard clusters */
- struct swap_cluster_info discard_cluster_tail; /* list tail of discard clusters */
+ struct swap_cluster_list discard_clusters; /* discard clusters list */
};
/* linux/mm/workingset.c */
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index fc1e16c25a29..797100e10010 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -319,7 +319,6 @@ void laptop_mode_timer_fn(unsigned long data);
#else
static inline void laptop_sync_completion(void) { }
#endif
-void throttle_vm_writeout(gfp_t gfp_mask);
bool node_dirty_ok(struct pglist_data *pgdat);
int wb_domain_init(struct wb_domain *dom, gfp_t gfp);
#ifdef CONFIG_CGROUP_WRITEBACK
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index c2ba402ab256..cbdb90b6b308 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -13,7 +13,7 @@
EM( COMPACT_SKIPPED, "skipped") \
EM( COMPACT_DEFERRED, "deferred") \
EM( COMPACT_CONTINUE, "continue") \
- EM( COMPACT_PARTIAL, "partial") \
+ EM( COMPACT_SUCCESS, "success") \
EM( COMPACT_PARTIAL_SKIPPED, "partial_skipped") \
EM( COMPACT_COMPLETE, "complete") \
EM( COMPACT_NO_SUITABLE_PAGE, "no_suitable_page") \