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| 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 /drivers/md/raid1.c | |
| parent | 5e72fdb8d827560893642e85a251d339109a00f4 (diff) | |
| download | kernel_samsung_smdk4412-efd99ef3a97b5a68e7f7bc87efd62b887f77bc89.zip kernel_samsung_smdk4412-efd99ef3a97b5a68e7f7bc87efd62b887f77bc89.tar.gz kernel_samsung_smdk4412-efd99ef3a97b5a68e7f7bc87efd62b887f77bc89.tar.bz2 | |
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 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 298e02a..c706a7b 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1139,7 +1139,7 @@ read_again: * know the original bi_idx, so we just free * them all */ - __bio_for_each_segment(bvec, mbio, j, 0) + bio_for_each_segment_all(bvec, mbio, j) bvec->bv_page = r1_bio->behind_bvecs[j].bv_page; if (test_bit(WriteMostly, &conf->mirrors[i].rdev->flags)) atomic_inc(&r1_bio->behind_remaining); |