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mm/rmap: fix obsolete comment in __page_check_anon_rmap()

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Commit 21333b2b66 ("ksm: no debug in page_dup_rmap()") has reverted
page_dup_rmap() to an inline atomic_inc of mapcount.  So page_dup_rmap()
does not call __page_check_anon_rmap() anymore.

Link: https://lkml.kernel.org/r/20210128110209.50857-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2021-02-25 17:17:59 -08:00 committed by Linus Torvalds
parent e0af87ff7a
commit 90aaca852c
1 changed files with 1 additions and 2 deletions
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mm/rmap.c
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@ -1086,8 +1086,7 @@ static void __page_check_anon_rmap(struct page *page,
* be set up correctly at this point.
*
* We have exclusion against page_add_anon_rmap because the caller
* always holds the page locked, except if called from page_dup_rmap,
* in which case the page is already known to be setup.
* always holds the page locked.
*
* We have exclusion against page_add_new_anon_rmap because those pages
* are initially only visible via the pagetables, and the pte is locked