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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/raid1.c
parent7655db80932d95f501a0811544d9520ec720e38d (diff)
downloadlinux-066ff571011d8416e903d3d4f1f41e0b5eb91e1d.tar.gz
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/raid1.c')
-rw-r--r--drivers/md/raid1.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 99d5464a51f8..d785c3169426 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -165,9 +165,10 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
 	 * Allocate bios : 1 for reading, n-1 for writing
 	 */
 	for (j = pi->raid_disks ; j-- ; ) {
-		bio = bio_kmalloc(gfp_flags, RESYNC_PAGES);
+		bio = bio_kmalloc(RESYNC_PAGES, gfp_flags);
 		if (!bio)
 			goto out_free_bio;
+		bio_init(bio, NULL, bio->bi_inline_vecs, RESYNC_PAGES, 0);
 		r1_bio->bios[j] = bio;
 	}
 	/*
@@ -206,8 +207,10 @@ out_free_pages:
 		resync_free_pages(&rps[j]);
 
 out_free_bio:
-	while (++j < pi->raid_disks)
-		bio_put(r1_bio->bios[j]);
+	while (++j < pi->raid_disks) {
+		bio_uninit(r1_bio->bios[j]);
+		kfree(r1_bio->bios[j]);
+	}
 	kfree(rps);
 
 out_free_r1bio:
@@ -225,7 +228,8 @@ static void r1buf_pool_free(void *__r1_bio, void *data)
 	for (i = pi->raid_disks; i--; ) {
 		rp = get_resync_pages(r1bio->bios[i]);
 		resync_free_pages(rp);
-		bio_put(r1bio->bios[i]);
+		bio_uninit(r1bio->bios[i]);
+		kfree(r1bio->bios[i]);
 	}
 
 	/* resync pages array stored in the 1st bio's .bi_private */