Btrfs: Make sure pages are dirty before doing delalloc for them
authorChris Mason <chris.mason@oracle.com>
Mon, 10 Nov 2008 12:31:30 +0000 (07:31 -0500)
committerChris Mason <chris.mason@oracle.com>
Mon, 10 Nov 2008 12:31:30 +0000 (07:31 -0500)
This adds a PageDirty check to the writeback path that locks pages
for delalloc.  If a page wasn't dirty at this point, it is in the
process of being truncated away.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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