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mm/memory-failure.c: move comment

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The comment about pages under writeback is far from the relevant code, so
let's move it to the right place.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Naoya Horiguchi 2014-06-04 16:10:35 -07:00 committed by Linus Torvalds
parent 888cf2db47
commit 6edd6cc662
1 changed files with 4 additions and 5 deletions
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9
mm/memory-failure.c
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@ -1132,11 +1132,6 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
} }
} }
/*
* Lock the page and wait for writeback to finish.
* It's very difficult to mess with pages currently under IO
* and in many cases impossible, so we just avoid it here.
*/
lock_page(hpage); lock_page(hpage);
/* /*
@ -1186,6 +1181,10 @@ int memory_failure(unsigned long pfn, int trapno, int flags)
if (PageHuge(p)) if (PageHuge(p))
set_page_hwpoison_huge_page(hpage); set_page_hwpoison_huge_page(hpage);
/*
* It's very difficult to mess with pages currently under IO
* and in many cases impossible, so we just avoid it here.
*/
wait_on_page_writeback(p); wait_on_page_writeback(p);
/* /*