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mm, page_alloc: un-inline the bad part of free_pages_check 

From: Vlastimil Babka <vbabka@suse.cz>

!DEBUG_VM size and bloat-o-meter:

  add/remove: 1/0 grow/shrink: 0/2 up/down: 124/-370 (-246)
  function                                     old     new   delta
  free_pages_check_bad                           -     124    +124
  free_pcppages_bulk                          1288    1171    -117
  __free_pages_ok                              948     695    -253

DEBUG_VM:

  add/remove: 1/0 grow/shrink: 0/1 up/down: 124/-214 (-90)
  function                                     old     new   delta
  free_pages_check_bad                           -     124    +124
  free_pages_prepare                          1112     898    -214

[akpm@linux-foundation.org: fix whitespace]
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mel Gorman 2016-05-19 17:14:18 -07:00 committed by Linus Torvalds
parent 7bfec6f47b
commit bb552ac6c6
1 changed files with 13 additions and 8 deletions
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21
mm/page_alloc.c
View File

@ -806,18 +806,11 @@ static inline bool page_expected_state(struct page *page,
return true;
}
static inline int free_pages_check(struct page *page)
static void free_pages_check_bad(struct page *page)
{
const char *bad_reason;
unsigned long bad_flags;
if (page_expected_state(page, PAGE_FLAGS_CHECK_AT_FREE)) {
page_cpupid_reset_last(page);
page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
return 0;
}
/* Something has gone sideways, find it */
bad_reason = NULL;
bad_flags = 0;
@ -836,6 +829,18 @@ static inline int free_pages_check(struct page *page)
bad_reason = "page still charged to cgroup";
#endif
bad_page(page, bad_reason, bad_flags);
}
static inline int free_pages_check(struct page *page)
{
if (likely(page_expected_state(page, PAGE_FLAGS_CHECK_AT_FREE))) {
page_cpupid_reset_last(page);
page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
return 0;
}
/* Something has gone sideways, find it */
free_pages_check_bad(page);
return 1;
}