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direct-io: always call ->end_io if non-NULL

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This way we can pass back errors to the file system, and allow for
cleanup required for all direct I/O invocations.

Also allow the ->end_io handlers to return errors on their own, so that
I/O completion errors can be passed on to the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2016-02-08 14:40:51 +11:00 • committed by Dave Chinner
commit 187372a3b9
6 changed files with 35 additions and 14 deletions
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