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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-03-20 08:09:19 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-03-20 08:13:50 +0200 |
| commit | 17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9 (patch) | |
| tree | a45f944e15a2600ec20ca4ec11b23d4641095e8e /fs/bio.c | |
| parent | b7e4ab50418d5b34ab0dae95193dd71190e1fb50 (diff) | |
| parent | c86907b59f505863ec7839471e889330982a596e (diff) | |
| download | linux-stable-17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9.tar.gz linux-stable-17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9.tar.bz2 linux-stable-17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9.zip | |
Merge branch '3.15/dss-dt' into 3.15/fbdev
Merge OMAP DSS DT support
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; |