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Merge branch 'akpm' (patches from Andrew)

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Merge second patch-bomb from Andrew Morton:
 "Almost all of the rest of MM.  There was an unusually large amount of
  MM material this time"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (141 commits)
  zpool: remove no-op module init/exit
  mm: zbud: constify the zbud_ops
  mm: zpool: constify the zpool_ops
  mm: swap: zswap: maybe_preload & refactoring
  zram: unify error reporting
  zsmalloc: remove null check from destroy_handle_cache()
  zsmalloc: do not take class lock in zs_shrinker_count()
  zsmalloc: use class->pages_per_zspage
  zsmalloc: consider ZS_ALMOST_FULL as migrate source
  zsmalloc: partial page ordering within a fullness_list
  zsmalloc: use shrinker to trigger auto-compaction
  zsmalloc: account the number of compacted pages
  zsmalloc/zram: introduce zs_pool_stats api
  zsmalloc: cosmetic compaction code adjustments
  zsmalloc: introduce zs_can_compact() function
  zsmalloc: always keep per-class stats
  zsmalloc: drop unused variable `nr_to_migrate'
  mm/memblock.c: fix comment in __next_mem_range()
  mm/page_alloc.c: fix type information of memoryless node
  memory-hotplug: fix comments in zone_spanned_pages_in_node() and zone_spanned_pages_in_node()
  ...
This commit is contained in:
Linus Torvalds
2015-09-08 17:52:23 -07:00
parent 839fe9156f df69f52d99
commit f6f7a63692
99 changed files with 2784 additions and 1569 deletions
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32
include/linux/mm.h
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@@ -249,6 +249,8 @@ struct vm_operations_struct {
void (*close)(struct vm_area_struct * area);
int (*mremap)(struct vm_area_struct * area);
int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf);
int (*pmd_fault)(struct vm_area_struct *, unsigned long address,
pmd_t *, unsigned int flags);
void (*map_pages)(struct vm_area_struct *vma, struct vm_fault *vmf);
/* notification that a previously read-only page is about to become
@@ -307,18 +309,6 @@ struct inode;
#define page_private(page) ((page)->private)
#define set_page_private(page, v) ((page)->private = (v))
/* It's valid only if the page is free path or free_list */
static inline void set_freepage_migratetype(struct page *page, int migratetype)
{
page->index = migratetype;
}
/* It's valid only if the page is free path or free_list */
static inline int get_freepage_migratetype(struct page *page)
{
return page->index;
}
/*
* FIXME: take this include out, include page-flags.h in
* files which need it (119 of them)
@@ -359,18 +349,6 @@ static inline int get_page_unless_zero(struct page *page)
return atomic_inc_not_zero(&page->_count);
}
/*
* Try to drop a ref unless the page has a refcount of one, return false if
* that is the case.
* This is to make sure that the refcount won't become zero after this drop.
* This can be called when MMU is off so it must not access
* any of the virtual mappings.
*/
static inline int put_page_unless_one(struct page *page)
{
return atomic_add_unless(&page->_count, -1, 1);
}
extern int page_is_ram(unsigned long pfn);
enum {
@@ -1267,6 +1245,11 @@ static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
}
static inline bool vma_is_anonymous(struct vm_area_struct *vma)
{
return !vma->vm_ops;
}
static inline int stack_guard_page_start(struct vm_area_struct *vma,
unsigned long addr)
{
@@ -2193,6 +2176,7 @@ extern int memory_failure(unsigned long pfn, int trapno, int flags);
extern void memory_failure_queue(unsigned long pfn, int trapno, int flags);
extern int unpoison_memory(unsigned long pfn);
extern int get_hwpoison_page(struct page *page);
extern void put_hwpoison_page(struct page *page);
extern int sysctl_memory_failure_early_kill;
extern int sysctl_memory_failure_recovery;
extern void shake_page(struct page *p, int access);