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authorChristoph Hellwig <hch@lst.de>2017-08-29 17:13:20 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2017-09-05 02:04:23 +0300
commit91f9943e1c7b6638f27312d03fe71fcc67b23571 (patch)
treebf9c2212d93f4fbf9af6f5fafc2e667fa3d29de1 /fs/block_dev.c
parent3239d834847627b6634a4139cf1dc58f6f137a46 (diff)
downloadlinux-91f9943e1c7b6638f27312d03fe71fcc67b23571.tar.xz
fs: support RWF_NOWAIT for buffered reads
This is based on the old idea and code from Milosz Tanski. With the aio nowait code it becomes mostly trivial now. Buffered writes continue to return -EOPNOTSUPP if RWF_NOWAIT is passed. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/block_dev.c')
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