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authorChristoph Hellwig <hch@infradead.org>2010-07-18 21:17:10 +0000
committerAlex Elder <aelder@sgi.com>2010-07-26 16:09:10 -0500
commitfb511f2150174b18b28ad54708c1adda0df39b17 (patch)
tree2642c10c35a8dcbf7aa1e46115a5b48555aa258b /kernel
parent40e2e97316af6e62affab7a392e792494b8d9dde (diff)
xfs: move aio completion after unwritten extent conversion
If we write into an unwritten extent using AIO we need to complete the AIO request after the extent conversion has finished. Without that a read could race to see see the extent still unwritten and return zeros. For synchronous I/O we already take care of that by flushing the xfsconvertd workqueue (which might be a bit of overkill). To do that add iocb and result fields to struct xfs_ioend, so that we can call aio_complete from xfs_end_io after the extent conversion has happened. Note that we need a new result field as io_error is used for positive errno values, while the AIO code can return negative error values and positive transfer sizes. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions