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 |
|---|---|---|
| Kconfig | -rw-r--r-- | 11.2 KB |
| Makefile | -rw-r--r-- | 595 bytes |
| autosleep.c | -rw-r--r-- | 2.6 KB |
| console.c | -rw-r--r-- | 3.5 KB |
| energy_model.c | -rw-r--r-- | 9.1 KB |
| hibernate.c | -rw-r--r-- | 30.1 KB |
| main.c | -rw-r--r-- | 22.5 KB |
| power.h | -rw-r--r-- | 8.6 KB |
| poweroff.c | -rw-r--r-- | 992 bytes |
| process.c | -rw-r--r-- | 5.6 KB |
| qos.c | -rw-r--r-- | 17.2 KB |
| snapshot.c | -rw-r--r-- | 72.6 KB |
| suspend.c | -rw-r--r-- | 15.3 KB |
| suspend_test.c | -rw-r--r-- | 5.7 KB |
| swap.c | -rw-r--r-- | 37.8 KB |
| user.c | -rw-r--r-- | 9.4 KB |
| wakelock.c | -rw-r--r-- | 5.9 KB |
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