Re: [PATCH 1/2]: Fix BUG in cancel_dirty_pages on XFS

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David Chinner wrote:


Only if we leave the page in the page cache. If we toss the page,
the time it takes to do the I/O for the page fault is enough for
the direct I/o to complete. Sure it's not an absolute guarantee,
but if you want an absolute guarantee:


So I guess you *could* relax it in theory... Anyway, don't take
my pestering as advocacy for wanting XFS to do something more
clever in such a corner case. I think you're quite right to be
conservative and share codepaths between direct IO read and
write.

--
SUSE Labs, Novell Inc.
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