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authorChristoph Hellwig <hch@lst.de>2022-04-06 08:12:27 +0200
committerJens Axboe <axboe@kernel.dk>2022-04-17 19:30:41 -0600
commit066ff571011d8416e903d3d4f1f41e0b5eb91e1d (patch)
tree749f3f28b12204c02e223ec27318d5a231eede0f /drivers/md/dm-bufio.c
parenttarget/pscsi: remove pscsi_get_bio (diff)
downloadlinux-dev-066ff571011d8416e903d3d4f1f41e0b5eb91e1d.tar.xz
linux-dev-066ff571011d8416e903d3d4f1f41e0b5eb91e1d.zip
block: turn bio_kmalloc into a simple kmalloc wrapper
Remove the magic autofree semantics and require the callers to explicitly call bio_init to initialize the bio. This allows bio_free to catch accidental bio_put calls on bio_init()ed bios as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Coly Li <colyli@suse.de> Acked-by: Mike Snitzer <snitzer@kernel.org> Link: https://lore.kernel.org/r/20220406061228.410163-5-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm-bufio.c')
-rw-r--r--drivers/md/dm-bufio.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index e9cbc70d5a0e..5ffa1dcf84cf 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -611,7 +611,8 @@ static void bio_complete(struct bio *bio)
{
struct dm_buffer *b = bio->bi_private;
blk_status_t status = bio->bi_status;
- bio_put(bio);
+ bio_uninit(bio);
+ kfree(bio);
b->end_io(b, status);
}
@@ -626,16 +627,14 @@ static void use_bio(struct dm_buffer *b, int rw, sector_t sector,
if (unlikely(b->c->sectors_per_block_bits < PAGE_SHIFT - SECTOR_SHIFT))
vec_size += 2;
- bio = bio_kmalloc(GFP_NOWAIT | __GFP_NORETRY | __GFP_NOWARN, vec_size);
+ bio = bio_kmalloc(vec_size, GFP_NOWAIT | __GFP_NORETRY | __GFP_NOWARN);
if (!bio) {
dmio:
use_dmio(b, rw, sector, n_sectors, offset);
return;
}
-
+ bio_init(bio, b->c->bdev, bio->bi_inline_vecs, vec_size, rw);
bio->bi_iter.bi_sector = sector;
- bio_set_dev(bio, b->c->bdev);
- bio_set_op_attrs(bio, rw, 0);
bio->bi_end_io = bio_complete;
bio->bi_private = b;