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authorKent Overstreet <kent.overstreet@gmail.com>2018-06-05 05:26:33 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-06 12:18:01 +0100
commit7ff8f2104cc9f371d64fc87a3f9a08e6e88f6614 (patch)
tree141d5bd9d79184bf13dd070c9e928ce3da105667 /drivers/md/dm-snap.c
parent37524335ac39dd4a77c305735c2ce5522278d674 (diff)
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dm: Use kzalloc for all structs with embedded biosets/mempools
[ Upstream commit d377535405686f735b90a8ad4ba269484cd7c96e ] mempool_init()/bioset_init() require that the mempools/biosets be zeroed first; they probably should not _require_ this, but not allocating those structs with kzalloc is a fairly nonsensical thing to do (calling mempool_exit()/bioset_exit() on an uninitialized mempool/bioset is legal and safe, but only works if said memory was zeroed.) Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/md/dm-snap.c')
-rw-r--r--drivers/md/dm-snap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index cf2f44e500e2..c04d9f22d160 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1136,7 +1136,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
origin_mode = FMODE_WRITE;
}
- s = kmalloc(sizeof(*s), GFP_KERNEL);
+ s = kzalloc(sizeof(*s), GFP_KERNEL);
if (!s) {
ti->error = "Cannot allocate private snapshot structure";
r = -ENOMEM;