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(parent: 2b04e8f) | patch
bio_copy_user_iov(): don't ignore ->iov_offset
authorAl Viro <viro@zeniv.linux.org.uk>
Sun, 24 Sep 2017 14:21:15 +0000 (10:21 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 11 Oct 2017 03:55:14 +0000 (23:55 -0400)
commit1cfd0ddd82232804e03f3023f6a58b50dfef0574
treed947cd8a4539b38383065b80d1cc1e3dff6df948tree | snapshot (tar.gz zip)
parent2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058commit | diff
bio_copy_user_iov(): don't ignore ->iov_offset

Since "block: support large requests in blk_rq_map_user_iov" we
started to call it with partially drained iter; that works fine
on the write side, but reads create a copy of iter for completion
time.  And that needs to take the possibility of ->iov_iter != 0
into account...

Cc: stable@vger.kernel.org #v4.5+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
block/bio.c diff | blob | blame | history