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mm: remove free_page_mlock

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We should not be seeing non-0 unevictable_pgs_mlockfreed any longer.  So
remove free_page_mlock() from the page freeing paths: __PG_MLOCKED is
already in PAGE_FLAGS_CHECK_AT_FREE, so free_pages_check() will now be
checking it, reporting "BUG: Bad page state" if it's ever found set.
Comment UNEVICTABLE_MLOCKFREED and unevictable_pgs_mlockfreed always 0.

Signed-off-by: Hugh Dickins <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Michel Lespinasse <[email protected]>
Cc: Ying Han <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hugh Dickins 2012-10-08 16:33:21 -07:00 • committed by Linus Torvalds
commit a0c5e813f0
3 changed files with 2 additions and 19 deletions
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mm/vmstat.c
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@ -782,7 +782,7 @@ const char * const vmstat_text[] = {
"unevictable_pgs_munlocked",
"unevictable_pgs_cleared",
"unevictable_pgs_stranded",
"unevictable_pgs_mlockfreed",
"unevictable_pgs_mlockfreed", /* no longer useful: always zero */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
"thp_fault_alloc",