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-- | 1.6 KB |
| autogroup.c | -rw-r--r-- | 6.4 KB |
| autogroup.h | -rw-r--r-- | 1.4 KB |
| clock.c | -rw-r--r-- | 12.1 KB |
| completion.c | -rw-r--r-- | 10.0 KB |
| core.c | -rw-r--r-- | 230.9 KB |
| cpuacct.c | -rw-r--r-- | 8.2 KB |
| cpudeadline.c | -rw-r--r-- | 6.3 KB |
| cpudeadline.h | -rw-r--r-- | 637 bytes |
| cpufreq.c | -rw-r--r-- | 2.7 KB |
| cpufreq_schedutil.c | -rw-r--r-- | 26.8 KB |
| cpupri.c | -rw-r--r-- | 8.5 KB |
| cpupri.h | -rw-r--r-- | 775 bytes |
| cputime.c | -rw-r--r-- | 26.0 KB |
| deadline.c | -rw-r--r-- | 79.2 KB |
| debug.c | -rw-r--r-- | 23.9 KB |
| fair.c | -rw-r--r-- | 298.9 KB |
| features.h | -rw-r--r-- | 2.4 KB |
| idle.c | -rw-r--r-- | 12.1 KB |
| isolation.c | -rw-r--r-- | 5.2 KB |
| loadavg.c | -rw-r--r-- | 11.2 KB |
| membarrier.c | -rw-r--r-- | 19.1 KB |
| pelt.c | -rw-r--r-- | 12.3 KB |
| pelt.h | -rw-r--r-- | 5.6 KB |
| psi.c | -rw-r--r-- | 36.6 KB |
| rt.c | -rw-r--r-- | 66.3 KB |
| sched-pelt.h | -rw-r--r-- | 616 bytes |
| sched.h | -rw-r--r-- | 70.6 KB |
| smp.h | -rw-r--r-- | 266 bytes |
| stats.c | -rw-r--r-- | 2.9 KB |
| stats.h | -rw-r--r-- | 8.0 KB |
| stop_task.c | -rw-r--r-- | 3.1 KB |
| swait.c | -rw-r--r-- | 3.6 KB |
| topology.c | -rw-r--r-- | 59.4 KB |
| wait.c | -rw-r--r-- | 14.1 KB |
| wait_bit.c | -rw-r--r-- | 6.8 KB |
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