diff options
| author | Kent Overstreet <koverstreet@google.com> | 2013-02-06 12:23:11 -0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-09-10 01:57:27 +0100 |
| commit | efd99ef3a97b5a68e7f7bc87efd62b887f77bc89 (patch) | |
| tree | e0677c7cc5aadfe5f7daf855d75a7b4c266faa0c /mm | |
| parent | 5e72fdb8d827560893642e85a251d339109a00f4 (diff) | |
block: Add bio_for_each_segment_all()
commit d74c6d514fe314b8bdab58b487b25992291577ec upstream.
__bio_for_each_segment() iterates bvecs from the specified index
instead of bio->bv_idx. Currently, the only usage is to walk all the
bvecs after the bio has been advanced by specifying 0 index.
For immutable bvecs, we need to split these apart;
bio_for_each_segment() is going to have a different implementation.
This will also help document the intent of code that's using it -
bio_for_each_segment_all() is only legal to use for code that owns the
bio.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Neil Brown <neilb@suse.de>
CC: Boaz Harrosh <bharrosh@panasas.com>
[bwh: Backported to 3.2: drop inapplicable change to drivers/block/rbd.c.
This is a prerequisite for commit 35dc248383bb 'sg: Fix user memory
corruption when SG_IO is interrupted by a signal']
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/bounce.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/bounce.c b/mm/bounce.c index 4e9ae722af83..f71a3b347303 100644 --- a/mm/bounce.c +++ b/mm/bounce.c @@ -132,7 +132,7 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool, int err) /* * free up bounce indirect pages used */ - __bio_for_each_segment(bvec, bio, i, 0) { + bio_for_each_segment_all(bvec, bio, i) { org_vec = bio_orig->bi_io_vec + i; if (bvec->bv_page == org_vec->bv_page) continue; |