-
由 Jan Kara 提交于
commit 13ef954445df4fd1d7c003a500ec5ce49573e14b upstream Notes from Xiaoguang Wang: Indeed this patch should be appled before "ext4: introduce direct I/O read using iomap infrastructure", but given that we have already appled "ext4: introduce direct I/O read using iomap infrastructure" previously, we need to update iomap_dio_rw() calls with the new argument in ext4. Filesystems do not support doing IO as asynchronous in some cases. For example in case of unaligned writes or in case file size needs to be extended (e.g. for ext4). Instead of forcing filesystem to wait for AIO in such cases, add argument to iomap_dio_rw() which makes the function wait for IO completion. This also results in executing iomap_dio_complete() inline in iomap_dio_rw() providing its return value to the caller as for ordinary sync IO. Signed-off-by: NJan Kara <jack@suse.cz> Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com> Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com> Reviewed-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
96d39291