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mm/rmap: use rmap_walk() in try_to_munlock()

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Now, we have an infrastructure in rmap_walk() to handle difference from
variants of rmap traversing functions.

So, just use it in try_to_munlock().

In this patch, I change following things.

1. remove some variants of rmap traversing functions.
	cf> try_to_unmap_ksm, try_to_unmap_anon, try_to_unmap_file
2. mechanical change to use rmap_walk() in try_to_munlock().
3. copy and paste comments.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joonsoo Kim
2014-01-21 16:19:45 -08:00
committed by Linus Torvalds
parent 5262950642
commit e8351ac9bf
3 changed files with 42 additions and 168 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/ksm.h
-6
View File
@@ -75,7 +75,6 @@ struct page *ksm_might_need_to_copy(struct page *page,
int page_referenced_ksm(struct page *page,
struct mem_cgroup *memcg, unsigned long *vm_flags);
int try_to_unmap_ksm(struct page *page, enum ttu_flags flags);
int rmap_walk_ksm(struct page *page, struct rmap_walk_control *rwc);
void ksm_migrate_page(struct page *newpage, struct page *oldpage);
@@ -114,11 +113,6 @@ static inline int page_referenced_ksm(struct page *page,
return 0;
}
static inline int try_to_unmap_ksm(struct page *page, enum ttu_flags flags)
{
return 0;
}
static inline int rmap_walk_ksm(struct page *page,
struct rmap_walk_control *rwc)
{