From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Coly Li <colyli@suse.de>, Mike Snitzer <snitzer@redhat.com>,
Song Liu <song@kernel.org>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Josef Bacik <josef@toxicpanda.com>,
David Sterba <dsterba@suse.com>,
Phillip Lougher <phillip@squashfs.org.uk>,
linux-block@vger.kernel.org, dm-devel@redhat.com,
linux-kernel@vger.kernel.org, linux-bcache@vger.kernel.org,
linux-raid@vger.kernel.org, target-devel@vger.kernel.org,
linux-btrfs@vger.kernel.org
Subject: [PATCH 5/5] pktcdvd: stop using bio_reset
Date: Tue, 8 Mar 2022 07:15:51 +0100 [thread overview]
Message-ID: <20220308061551.737853-6-hch@lst.de> (raw)
In-Reply-To: <20220308061551.737853-1-hch@lst.de>
Just initialize the bios on-demand.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/pktcdvd.c | 25 +++++++++----------------
1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 5ab43f9027631..335099c4076ee 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -525,7 +525,6 @@ static struct packet_data *pkt_alloc_packet_data(int frames)
pkt->w_bio = bio_kmalloc(frames, GFP_KERNEL);
if (!pkt->w_bio)
goto no_bio;
- bio_init(pkt->w_bio, NULL, pkt->w_bio->bi_inline_vecs, frames, 0);
for (i = 0; i < frames / FRAMES_PER_PAGE; i++) {
pkt->pages[i] = alloc_page(GFP_KERNEL|__GFP_ZERO);
@@ -537,26 +536,20 @@ static struct packet_data *pkt_alloc_packet_data(int frames)
bio_list_init(&pkt->orig_bios);
for (i = 0; i < frames; i++) {
- struct bio *bio = bio_kmalloc(1, GFP_KERNEL);
- if (!bio)
+ pkt->r_bios[i] = bio_kmalloc(1, GFP_KERNEL);
+ if (!pkt->r_bios[i])
goto no_rd_bio;
- bio_init(bio, NULL, bio->bi_inline_vecs, 1, 0);
- pkt->r_bios[i] = bio;
}
return pkt;
no_rd_bio:
- for (i = 0; i < frames; i++) {
- if (pkt->r_bios[i])
- bio_uninit(pkt->r_bios[i]);
+ for (i = 0; i < frames; i++)
kfree(pkt->r_bios[i]);
- }
no_page:
for (i = 0; i < frames / FRAMES_PER_PAGE; i++)
if (pkt->pages[i])
__free_page(pkt->pages[i]);
- bio_uninit(pkt->w_bio);
kfree(pkt->w_bio);
no_bio:
kfree(pkt);
@@ -571,13 +564,10 @@ static void pkt_free_packet_data(struct packet_data *pkt)
{
int i;
- for (i = 0; i < pkt->frames; i++) {
- bio_uninit(pkt->r_bios[i]);
+ for (i = 0; i < pkt->frames; i++)
kfree(pkt->r_bios[i]);
- }
for (i = 0; i < pkt->frames / FRAMES_PER_PAGE; i++)
__free_page(pkt->pages[i]);
- bio_uninit(pkt->w_bio);
kfree(pkt->w_bio);
kfree(pkt);
}
@@ -950,6 +940,7 @@ static void pkt_end_io_read(struct bio *bio)
if (bio->bi_status)
atomic_inc(&pkt->io_errors);
+ bio_uninit(bio);
if (atomic_dec_and_test(&pkt->io_wait)) {
atomic_inc(&pkt->run_sm);
wake_up(&pd->wqueue);
@@ -967,6 +958,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
pd->stats.pkt_ended++;
+ bio_uninit(bio);
pkt_bio_finished(pd);
atomic_dec(&pkt->io_wait);
atomic_inc(&pkt->run_sm);
@@ -1021,7 +1013,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
continue;
bio = pkt->r_bios[f];
- bio_reset(bio, pd->bdev, REQ_OP_READ);
+ bio_init(bio, pd->bdev, bio->bi_inline_vecs, 1, REQ_OP_READ);
bio->bi_iter.bi_sector = pkt->sector + f * (CD_FRAMESIZE >> 9);
bio->bi_end_io = pkt_end_io_read;
bio->bi_private = pkt;
@@ -1234,7 +1226,8 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
{
int f;
- bio_reset(pkt->w_bio, pd->bdev, REQ_OP_WRITE);
+ bio_init(pkt->w_bio, pd->bdev, pkt->w_bio->bi_inline_vecs, pkt->frames,
+ REQ_OP_WRITE);
pkt->w_bio->bi_iter.bi_sector = pkt->sector;
pkt->w_bio->bi_end_io = pkt_end_io_packet_write;
pkt->w_bio->bi_private = pkt;
--
2.30.2
next prev parent reply other threads:[~2022-03-08 6:16 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-08 6:15 cleanup bio_kmalloc v2 Christoph Hellwig
2022-03-08 6:15 ` [PATCH 1/5] btrfs: simplify ->flush_bio handling Christoph Hellwig
2022-03-08 22:07 ` Chaitanya Kulkarni
2022-03-08 6:15 ` [PATCH 2/5] squashfs: always use bio_kmalloc in squashfs_bio_read Christoph Hellwig
2022-03-08 6:15 ` [PATCH 3/5] target/pscsi: remove pscsi_get_bio Christoph Hellwig
2022-03-08 22:08 ` Chaitanya Kulkarni
2022-03-08 6:15 ` [PATCH 4/5] block: turn bio_kmalloc into a simple kmalloc wrapper Christoph Hellwig
2022-03-09 3:06 ` Martin K. Petersen
[not found] ` <CGME20220331211804eucas1p28da21f2dfd57aa490abffb8f87417f42@eucas1p2.samsung.com>
2022-03-31 21:18 ` Marek Szyprowski
2022-03-31 21:22 ` Jens Axboe
2022-04-01 4:57 ` Christoph Hellwig
2022-03-08 6:15 ` Christoph Hellwig [this message]
2022-03-08 22:10 ` [PATCH 5/5] pktcdvd: stop using bio_reset Chaitanya Kulkarni
2022-03-30 14:29 ` cleanup bio_kmalloc v2 Christoph Hellwig
2022-03-30 14:37 ` Jens Axboe
2022-03-30 14:49 ` Jens Axboe
2022-03-31 16:34 ` Qian Cai
2022-03-31 16:40 ` Christoph Hellwig
2022-03-31 16:48 ` Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2022-04-06 6:12 cleanup bio_kmalloc v3 Christoph Hellwig
2022-04-06 6:12 ` [PATCH 5/5] pktcdvd: stop using bio_reset Christoph Hellwig
2022-03-01 8:45 cleanup bio_kmalloc Christoph Hellwig
2022-03-01 8:45 ` [PATCH 5/5] pktcdvd: stop using bio_reset Christoph Hellwig
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