Revision 809b1e4945774c9ec5619a8f4e2189b7b3833c0c authored by Hannes Reinecke on 21 January 2021, 17:50:56 UTC, committed by Mike Snitzer on 21 January 2021, 20:06:45 UTC
This reverts commit
644bda6f3460 ("dm table: fall back to getting device using name_to_dev_t()")
dm_get_dev_t() is just used to convert an arbitrary 'path' string
into a dev_t. It doesn't presume that the device is present; that
check will be done later, as the only caller is dm_get_device(),
which does a dm_get_table_device() later on, which will properly
open the device.
So if the path string already _is_ in major:minor representation
we can convert it directly, avoiding a recursion into the filesystem
to lookup the block device.
This avoids a hang in multipath_message() when the filesystem is
inaccessible.
Fixes: 644bda6f3460 ("dm table: fall back to getting device using name_to_dev_t()")
Cc: stable@vger.kernel.org
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
1 parent 004b8ae
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 1.2 KB |
| lock_events.c | -rw-r--r-- | 4.3 KB |
| lock_events.h | -rw-r--r-- | 1.7 KB |
| lock_events_list.h | -rw-r--r-- | 3.1 KB |
| lockdep.c | -rw-r--r-- | 159.9 KB |
| lockdep_internals.h | -rw-r--r-- | 7.1 KB |
| lockdep_proc.c | -rw-r--r-- | 17.8 KB |
| lockdep_states.h | -rw-r--r-- | 207 bytes |
| locktorture.c | -rw-r--r-- | 28.2 KB |
| mcs_spinlock.h | -rw-r--r-- | 3.7 KB |
| mutex-debug.c | -rw-r--r-- | 2.8 KB |
| mutex-debug.h | -rw-r--r-- | 1.1 KB |
| mutex.c | -rw-r--r-- | 37.5 KB |
| mutex.h | -rw-r--r-- | 841 bytes |
| osq_lock.c | -rw-r--r-- | 5.8 KB |
| percpu-rwsem.c | -rw-r--r-- | 7.1 KB |
| qrwlock.c | -rw-r--r-- | 2.3 KB |
| qspinlock.c | -rw-r--r-- | 16.6 KB |
| qspinlock_paravirt.h | -rw-r--r-- | 16.0 KB |
| qspinlock_stat.h | -rw-r--r-- | 3.0 KB |
| rtmutex-debug.c | -rw-r--r-- | 4.6 KB |
| rtmutex-debug.h | -rw-r--r-- | 1.4 KB |
| rtmutex.c | -rw-r--r-- | 50.9 KB |
| rtmutex.h | -rw-r--r-- | 1.2 KB |
| rtmutex_common.h | -rw-r--r-- | 4.2 KB |
| rwsem.c | -rw-r--r-- | 41.6 KB |
| rwsem.h | -rw-r--r-- | 0 bytes |
| semaphore.c | -rw-r--r-- | 7.2 KB |
| spinlock.c | -rw-r--r-- | 9.6 KB |
| spinlock_debug.c | -rw-r--r-- | 5.7 KB |
| test-ww_mutex.c | -rw-r--r-- | 12.3 KB |
Computing file changes ...
