AcoSail/kernel_optimize_test
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lightnvm: fix bio submission issue

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Put bio when submission fails, since we get it
before submission. And return error when backend
device driver doesn't provide a submit_io method,
thus we can end IO properly.

Signed-off-by: Wenwei Tao <ww.tao0320@gmail.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Wenwei Tao 2016-01-12 07:49:15 +01:00 committed by Jens Axboe
parent 168309855a
commit 3cd485b1f8
2 changed files with 4 additions and 2 deletions
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2
drivers/lightnvm/gennvm.c
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@ -345,7 +345,7 @@ static void gennvm_generic_to_addr_mode(struct nvm_dev *dev, struct nvm_rq *rqd)
static int gennvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
{
if (!dev->ops->submit_io)
return 0;
return -ENODEV;
/* Convert address space */
gennvm_generic_to_addr_mode(dev, rqd);

4
drivers/lightnvm/rrpc.c
View File

@ -650,11 +650,12 @@ static int rrpc_end_io(struct nvm_rq *rqd, int error)
if (bio_data_dir(rqd->bio) == WRITE)
rrpc_end_io_write(rrpc, rrqd, laddr, npages);
bio_put(rqd->bio);
if (rrqd->flags & NVM_IOTYPE_GC)
return 0;
rrpc_unlock_rq(rrpc, rqd);
bio_put(rqd->bio);
if (npages > 1)
nvm_dev_dma_free(rrpc->dev, rqd->ppa_list, rqd->dma_ppa_list);
@ -841,6 +842,7 @@ static int rrpc_submit_io(struct rrpc *rrpc, struct bio *bio,
err = nvm_submit_io(rrpc->dev, rqd);
if (err) {
pr_err("rrpc: I/O submission failed: %d\n", err);
bio_put(bio);
return NVM_IO_ERR;
}