[PATCH] sync_page() smp_mb() comment

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The smp_mb() is becaus sync_page() doesn't have PG_locked while it accesses
page_mapping(page).  The comments in the patch (the entire patch is the
addition of this comment) try to explain further how and why smp_mb() is
used.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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William Lee Irwin III 2005-05-01 08:58:38 -07:00 • committed by Linus Torvalds

parent 93ea1d0a12

commit dd1d5afca8

1 changed files with 19 additions and 1 deletions

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mm/filemap.c

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