fs: add FMODE_DIO_PARALLEL_WRITE flag
Some filesystems support multiple threads writing to the same file with O_DIRECT without requiring exclusive access to it. io_uring can use this hint to avoid serializing dio writes to this inode, instead allowing them to run in parallel. XFS and ext4 both fall into this category, so set the flag for both of them. Reviewed-by:Darrick J. Wong <djwong@kernel.org> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
7e364e56
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