lkml.org 
[lkml]   [2017]   [Apr]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH] lightnvm: don't check for failure from mempool_alloc()

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>
---
drivers/lightnvm/rrpc.c | 9 ---------
1 file changed, 9 deletions(-)

diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index e00b1d7b976f..34f5f1cc9452 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -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) {
@@ -1007,11 +1003,6 @@ 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);
--
2.12.2
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2017-04-10 04:09    [W:0.038 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site