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authorMing Lei <ming.lei@redhat.com>2019-02-27 20:40:13 +0800
committerJens Axboe <axboe@kernel.dk>2019-02-28 05:56:03 -0700
commit594b9a89af8e7629e95a4cd844d188361be32790 (patch)
tree3ecf8a9d37bd6b7a7810e7c8ce8f2032dd578cf8 /net/unix
parentblock: optimize blk_bio_segment_split for single-page bvec (diff)
downloadlinux-dev-594b9a89af8e7629e95a4cd844d188361be32790.tar.xz
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block: introduce mp_bvec_for_each_page() for iterating over page
mp_bvec_for_each_segment() is a bit big for the iteration, so introduce a light-weight helper for iterating over pages, then 32bytes stack space can be saved. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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