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| author | David S. Miller <davem@davemloft.net> | 2014-02-19 07:24:22 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-19 07:24:22 +0100 |
| commit | 1e8d6421cff2c24fe0b345711e7a21af02e8bcf5 (patch) | |
| tree | 773b30106efb9b48055bc93958e5a94ac53768ce /fs/bio.c | |
| parent | rtnl: make ifla_policy static (diff) | |
| parent | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux (diff) | |
| download | linux-1e8d6421cff2c24fe0b345711e7a21af02e8bcf5.tar.xz linux-1e8d6421cff2c24fe0b345711e7a21af02e8bcf5.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/bonding/bond_3ad.h
drivers/net/bonding/bond_main.c
Two minor conflicts in bonding, both of which were overlapping
changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/bio.c')
| -rw-r--r-- | fs/bio.c | 15 |
1 files changed, 10 insertions, 5 deletions
@@ -611,7 +611,6 @@ EXPORT_SYMBOL(bio_clone_fast); struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, struct bio_set *bs) { - unsigned nr_iovecs = 0; struct bvec_iter iter; struct bio_vec bv; struct bio *bio; @@ -638,10 +637,7 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, * __bio_clone_fast() anyways. */ - bio_for_each_segment(bv, bio_src, iter) - nr_iovecs++; - - bio = bio_alloc_bioset(gfp_mask, nr_iovecs, bs); + bio = bio_alloc_bioset(gfp_mask, bio_segments(bio_src), bs); if (!bio) return NULL; @@ -650,9 +646,18 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask, bio->bi_iter.bi_sector = bio_src->bi_iter.bi_sector; bio->bi_iter.bi_size = bio_src->bi_iter.bi_size; + if (bio->bi_rw & REQ_DISCARD) + goto integrity_clone; + + if (bio->bi_rw & REQ_WRITE_SAME) { + bio->bi_io_vec[bio->bi_vcnt++] = bio_src->bi_io_vec[0]; + goto integrity_clone; + } + bio_for_each_segment(bv, bio_src, iter) bio->bi_io_vec[bio->bi_vcnt++] = bv; +integrity_clone: if (bio_integrity(bio_src)) { int ret; |