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lightnvm: don't check for failure from mempool_alloc()

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mempool_alloc() cannot fail if the gfp flags allow it to
sleep, and both GFP_KERNEL and GFP_NOIO allows for sleeping.

So rrpc_move_valid_pages() and rrpc_make_rq() don't need to
test the return value.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
NeilBrown 2017-04-15 20:55:41 +02:00 committed by Jens Axboe
parent 48d663a314
commit b0e0306ce1
1 changed files with 0 additions and 9 deletions
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9
drivers/lightnvm/rrpc.c
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@ -318,10 +318,6 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
}
page = mempool_alloc(rrpc->page_pool, GFP_NOIO);
if (!page) {
bio_put(bio);
return -ENOMEM;
}
while ((slot = find_first_zero_bit(rblk->invalid_pages,
nr_sec_per_blk)) < nr_sec_per_blk) {
@ -1006,11 +1002,6 @@ static blk_qc_t rrpc_make_rq(struct request_queue *q, struct bio *bio)
}
rqd = mempool_alloc(rrpc->rq_pool, GFP_KERNEL);
if (!rqd) {
pr_err_ratelimited("rrpc: not able to queue bio.");
bio_io_error(bio);
return BLK_QC_T_NONE;
}
memset(rqd, 0, sizeof(struct nvm_rq));
err = rrpc_submit_io(rrpc, bio, rqd, NVM_IOTYPE_NONE);