diff options
Diffstat (limited to 'drivers/lightnvm/pblk-write.c')
| -rw-r--r-- | drivers/lightnvm/pblk-write.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c index 750f04b8a227..2bf78f81862d 100644 --- a/drivers/lightnvm/pblk-write.c +++ b/drivers/lightnvm/pblk-write.c @@ -334,12 +334,13 @@ static int pblk_setup_w_rq(struct pblk *pblk, struct nvm_rq *rqd, } if (likely(!e_line || !atomic_read(&e_line->left_eblks))) - pblk_map_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, valid, 0); + ret = pblk_map_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, + valid, 0); else - pblk_map_erase_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, + ret = pblk_map_erase_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, valid, erase_ppa); - return 0; + return ret; } static int pblk_calc_secs_to_sync(struct pblk *pblk, unsigned int secs_avail, @@ -563,7 +564,7 @@ static void pblk_free_write_rqd(struct pblk *pblk, struct nvm_rq *rqd) c_ctx->nr_padded); } -static int pblk_submit_write(struct pblk *pblk) +static int pblk_submit_write(struct pblk *pblk, int *secs_left) { struct bio *bio; struct nvm_rq *rqd; @@ -572,6 +573,8 @@ static int pblk_submit_write(struct pblk *pblk) unsigned long pos; unsigned int resubmit; + *secs_left = 0; + spin_lock(&pblk->resubmit_lock); resubmit = !list_empty(&pblk->resubmit_list); spin_unlock(&pblk->resubmit_lock); @@ -601,17 +604,17 @@ static int pblk_submit_write(struct pblk *pblk) */ secs_avail = pblk_rb_read_count(&pblk->rwb); if (!secs_avail) - return 1; + return 0; secs_to_flush = pblk_rb_flush_point_count(&pblk->rwb); if (!secs_to_flush && secs_avail < pblk->min_write_pgs) - return 1; + return 0; secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, secs_to_flush); if (secs_to_sync > pblk->max_write_pgs) { pblk_err(pblk, "bad buffer sync calculation\n"); - return 1; + return 0; } secs_to_com = (secs_to_sync > secs_avail) ? @@ -640,6 +643,7 @@ static int pblk_submit_write(struct pblk *pblk) atomic_long_add(secs_to_sync, &pblk->sub_writes); #endif + *secs_left = 1; return 0; fail_free_bio: @@ -648,16 +652,22 @@ fail_put_bio: bio_put(bio); pblk_free_rqd(pblk, rqd, PBLK_WRITE); - return 1; + return -EINTR; } int pblk_write_ts(void *data) { struct pblk *pblk = data; + int secs_left; + int write_failure = 0; while (!kthread_should_stop()) { - if (!pblk_submit_write(pblk)) - continue; + if (!write_failure) { + write_failure = pblk_submit_write(pblk, &secs_left); + + if (secs_left) + continue; + } set_current_state(TASK_INTERRUPTIBLE); io_schedule(); } |