diff options
| author | Javier González <javier@cnexlabs.com> | 2017-10-13 15:46:18 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-13 17:34:57 +0300 |
| commit | 875d94f3a4838f2243334e5ce55ac8153f9bbf5b (patch) | |
| tree | 93577e6000070396c0c3b6e42e51fe4dd9d593df /drivers/lightnvm/pblk-write.c | |
| parent | 6ca2f71f3e3d94d188000b420ce0529b07f3ce95 (diff) | |
| download | linux-875d94f3a4838f2243334e5ce55ac8153f9bbf5b.tar.xz | |
lightnvm: pblk: allocate bio size more accurately
Wait until we know the exact number of ppas to be sent to the device,
before allocating the bio.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-write.c')
| -rw-r--r-- | drivers/lightnvm/pblk-write.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c index 0c0481cf9f5d..140a26edd1d3 100644 --- a/drivers/lightnvm/pblk-write.c +++ b/drivers/lightnvm/pblk-write.c @@ -534,24 +534,24 @@ static int pblk_submit_write(struct pblk *pblk) if (!secs_to_flush && secs_avail < pblk->min_write_pgs) return 1; - bio = bio_alloc(GFP_KERNEL, pblk->max_write_pgs); - - bio->bi_iter.bi_sector = 0; /* internal bio */ - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); - - rqd = pblk_alloc_rqd(pblk, WRITE); - rqd->bio = bio; - secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, secs_to_flush); if (secs_to_sync > pblk->max_write_pgs) { pr_err("pblk: bad buffer sync calculation\n"); - goto fail_put_bio; + return 1; } secs_to_com = (secs_to_sync > secs_avail) ? secs_avail : secs_to_sync; pos = pblk_rb_read_commit(&pblk->rwb, secs_to_com); - if (pblk_rb_read_to_bio(&pblk->rwb, rqd, bio, pos, secs_to_sync, + bio = bio_alloc(GFP_KERNEL, secs_to_sync); + + bio->bi_iter.bi_sector = 0; /* internal bio */ + bio_set_op_attrs(bio, REQ_OP_WRITE, 0); + + rqd = pblk_alloc_rqd(pblk, WRITE); + rqd->bio = bio; + + if (pblk_rb_read_to_bio(&pblk->rwb, rqd, pos, secs_to_sync, secs_avail)) { pr_err("pblk: corrupted write bio\n"); goto fail_put_bio; |