diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-03-24 14:20:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-03-24 14:20:48 -0700 |
| commit | 5ad4fe9613cb8c202150f5cce5347fc8926c6c01 (patch) | |
| tree | fd5ef65a02d0ca440236911c23940951f7d01f97 /drivers/md/dm.c | |
| parent | 83511470af1a734ec47c37957612d2eecf1a2352 (diff) | |
| parent | d3aa3e060c4a80827eb801fc448debc9daa7c46b (diff) | |
Merge tag 'for-6.3/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM thin to work as a swap device by using 'limit_swap_bios' DM
target flag (initially added to allow swap to dm-crypt) to throttle
the amount of outstanding swap bios.
- Fix DM crypt soft lockup warnings by calling cond_resched() from the
cpu intensive loop in dmcrypt_write().
- Fix DM crypt to not access an uninitialized tasklet. This fix allows
for consistent handling of IO completion, by _not_ needlessly punting
to a workqueue when tasklets are not needed.
- Fix DM core's alloc_dev() initialization for DM stats to check for
and propagate alloc_percpu() failure.
* tag 'for-6.3/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm stats: check for and propagate alloc_percpu failure
dm crypt: avoid accessing uninitialized tasklet
dm crypt: add cond_resched() to dmcrypt_write()
dm thin: fix deadlock when swapping to thin device
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index f5cc330bb549..2d0f934ba6e6 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2097,7 +2097,9 @@ static struct mapped_device *alloc_dev(int minor) if (!md->pending_io) goto bad; - dm_stats_init(&md->stats); + r = dm_stats_init(&md->stats); + if (r < 0) + goto bad; /* Populate the mapping, nobody knows we exist yet */ spin_lock(&_minor_lock); |