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block: loop: pass multi-page bvec to iov_iter
authorMing Lei <ming.lei@redhat.com>
Fri, 15 Feb 2019 11:13:17 +0000 (19:13 +0800)
committerJens Axboe <axboe@kernel.dk>
Fri, 15 Feb 2019 15:40:11 +0000 (08:40 -0700)
commit86af5952a8470f96b53830372c64469cb7ce780c
tree073d8c2173109a8a05bdbb7963d70e29d36c854etree | snapshot
parentc3a7ce738009912f9d237bdabf4a20038522de10commit | diff
block: loop: pass multi-page bvec to iov_iter

iov_iter is implemented on bvec itererator helpers, so it is safe to pass
multi-page bvec to it, and this way is much more efficient than passing one
page in each bvec.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/loop.c diff | blob | blame | history
Arne's tree of linux kernel.