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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2016-05-17 21:12:50 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2016-05-17 21:12:50 -0400
commite7ca7f9fa2cda220ba807620c992ce77c33a32ea (patch)
treefb8a6c1abc638c5a79645f4b9f44ece7c67187b4 /drivers/block/loop.c
parent5f0dfb7a9bcc8139958f59ecb9bbd7e738ae702d (diff)
parentd65c8fff867a6450c58ce31572e883148a445ddf (diff)
Merge branch 'fixes' into misc
Diffstat (limited to 'drivers/block/loop.c')
-rw-r--r--drivers/block/loop.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 423f4ca7d712..80cf8add46ff 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -488,6 +488,12 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,
bio_segments(bio), blk_rq_bytes(cmd->rq));
+ /*
+ * This bio may be started from the middle of the 'bvec'
+ * because of bio splitting, so offset from the bvec must
+ * be passed to iov iterator
+ */
+ iter.iov_offset = bio->bi_iter.bi_bvec_done;
cmd->iocb.ki_pos = pos;
cmd->iocb.ki_filp = file;