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Btrfs: Use async helpers to deal with pages that have been improperly dirtied

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Higher layers sometimes call set_page_dirty without asking the filesystem
to help.  This causes many problems for the data=ordered and cow code.
This commit detects pages that haven't been properly setup for IO and
kicks off an async helper to deal with them.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2008-07-17 12:53:51 -04:00
commit 247e743cbe
6 changed files with 106 additions and 9 deletions
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