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 |
|---|---|---|
| bpf | ||
| cgroup | ||
| configs | ||
| debug | ||
| dma | ||
| entry | ||
| events | ||
| gcov | ||
| irq | ||
| kcsan | ||
| livepatch | ||
| locking | ||
| power | ||
| printk | ||
| rcu | ||
| sched | ||
| time | ||
| trace | ||
| .gitignore | -rw-r--r-- | 71 bytes |
| Kconfig.freezer | -rw-r--r-- | 92 bytes |
| Kconfig.hz | -rw-r--r-- | 1.7 KB |
| Kconfig.locks | -rw-r--r-- | 4.9 KB |
| Kconfig.preempt | -rw-r--r-- | 3.0 KB |
| Makefile | -rw-r--r-- | 5.0 KB |
| acct.c | -rw-r--r-- | 15.5 KB |
| async.c | -rw-r--r-- | 10.2 KB |
| audit.c | -rw-r--r-- | 63.5 KB |
| audit.h | -rw-r--r-- | 10.3 KB |
| audit_fsnotify.c | -rw-r--r-- | 5.2 KB |
| audit_tree.c | -rw-r--r-- | 25.6 KB |
| audit_watch.c | -rw-r--r-- | 13.7 KB |
| auditfilter.c | -rw-r--r-- | 34.1 KB |
| auditsc.c | -rw-r--r-- | 71.8 KB |
| backtracetest.c | -rw-r--r-- | 1.9 KB |
| bounds.c | -rw-r--r-- | 751 bytes |
| capability.c | -rw-r--r-- | 14.6 KB |
| compat.c | -rw-r--r-- | 7.3 KB |
| configs.c | -rw-r--r-- | 2.0 KB |
| context_tracking.c | -rw-r--r-- | 6.4 KB |
| cpu.c | -rw-r--r-- | 61.0 KB |
| cpu_pm.c | -rw-r--r-- | 5.4 KB |
| crash_core.c | -rw-r--r-- | 12.8 KB |
| crash_dump.c | -rw-r--r-- | 1.1 KB |
| cred.c | -rw-r--r-- | 23.3 KB |
| delayacct.c | -rw-r--r-- | 4.7 KB |
| dma.c | -rw-r--r-- | 3.3 KB |
| exec_domain.c | -rw-r--r-- | 1.1 KB |
| exit.c | -rw-r--r-- | 43.7 KB |
| extable.c | -rw-r--r-- | 4.4 KB |
| fail_function.c | -rw-r--r-- | 7.0 KB |
| fork.c | -rw-r--r-- | 74.2 KB |
| freezer.c | -rw-r--r-- | 4.4 KB |
| futex.c | -rw-r--r-- | 109.5 KB |
| gen_kheaders.sh | -rwxr-xr-x | 3.2 KB |
| groups.c | -rw-r--r-- | 4.9 KB |
| hung_task.c | -rw-r--r-- | 7.5 KB |
| iomem.c | -rw-r--r-- | 4.7 KB |
| irq_work.c | -rw-r--r-- | 4.8 KB |
| jump_label.c | -rw-r--r-- | 20.9 KB |
| kallsyms.c | -rw-r--r-- | 18.6 KB |
| kcmp.c | -rw-r--r-- | 5.4 KB |
| kcov.c | -rw-r--r-- | 27.7 KB |
| kexec.c | -rw-r--r-- | 8.0 KB |
| kexec_core.c | -rw-r--r-- | 31.2 KB |
| kexec_elf.c | -rw-r--r-- | 11.4 KB |
| kexec_file.c | -rw-r--r-- | 33.3 KB |
| kexec_internal.h | -rw-r--r-- | 976 bytes |
| kheaders.c | -rw-r--r-- | 1.6 KB |
| kmod.c | -rw-r--r-- | 5.0 KB |
| kprobes.c | -rw-r--r-- | 66.6 KB |
| ksysfs.c | -rw-r--r-- | 6.3 KB |
| kthread.c | -rw-r--r-- | 38.1 KB |
| latencytop.c | -rw-r--r-- | 7.2 KB |
| module-internal.h | -rw-r--r-- | 782 bytes |
| module.c | -rw-r--r-- | 118.9 KB |
| module_signature.c | -rw-r--r-- | 1.1 KB |
| module_signing.c | -rw-r--r-- | 1.1 KB |
| notifier.c | -rw-r--r-- | 16.3 KB |
| nsproxy.c | -rw-r--r-- | 12.8 KB |
| padata.c | -rw-r--r-- | 28.0 KB |
| panic.c | -rw-r--r-- | 18.3 KB |
| params.c | -rw-r--r-- | 22.7 KB |
| pid.c | -rw-r--r-- | 17.0 KB |
| pid_namespace.c | -rw-r--r-- | 11.2 KB |
| profile.c | -rw-r--r-- | 14.8 KB |
| ptrace.c | -rw-r--r-- | 36.4 KB |
| range.c | -rw-r--r-- | 3.0 KB |
| reboot.c | -rw-r--r-- | 19.0 KB |
| regset.c | -rw-r--r-- | 1.9 KB |
| relay.c | -rw-r--r-- | 30.0 KB |
| resource.c | -rw-r--r-- | 45.4 KB |
| resource_kunit.c | -rw-r--r-- | 4.3 KB |
| rseq.c | -rw-r--r-- | 9.8 KB |
| scftorture.c | -rw-r--r-- | 17.9 KB |
| scs.c | -rw-r--r-- | 2.8 KB |
| seccomp.c | -rw-r--r-- | 61.6 KB |
| signal.c | -rw-r--r-- | 119.6 KB |
| smp.c | -rw-r--r-- | 26.8 KB |
| smpboot.c | -rw-r--r-- | 11.7 KB |
| smpboot.h | -rw-r--r-- | 640 bytes |
| softirq.c | -rw-r--r-- | 18.0 KB |
| stackleak.c | -rw-r--r-- | 3.6 KB |
| stacktrace.c | -rw-r--r-- | 9.6 KB |
| static_call.c | -rw-r--r-- | 10.6 KB |
| stop_machine.c | -rw-r--r-- | 17.8 KB |
| sys.c | -rw-r--r-- | 63.1 KB |
| sys_ni.c | -rw-r--r-- | 10.0 KB |
| sysctl-test.c | -rw-r--r-- | 10.8 KB |
| sysctl.c | -rw-r--r-- | 80.5 KB |
| task_work.c | -rw-r--r-- | 3.9 KB |
| taskstats.c | -rw-r--r-- | 15.2 KB |
| test_kprobes.c | -rw-r--r-- | 5.9 KB |
| torture.c | -rw-r--r-- | 22.2 KB |
| tracepoint.c | -rw-r--r-- | 15.6 KB |
| tsacct.c | -rw-r--r-- | 4.7 KB |
| ucount.c | -rw-r--r-- | 5.6 KB |
| uid16.c | -rw-r--r-- | 5.1 KB |
| uid16.h | -rw-r--r-- | 442 bytes |
| umh.c | -rw-r--r-- | 15.0 KB |
| up.c | -rw-r--r-- | 2.3 KB |
| user-return-notifier.c | -rw-r--r-- | 1.3 KB |
| user.c | -rw-r--r-- | 5.5 KB |
| user_namespace.c | -rw-r--r-- | 33.2 KB |
| usermode_driver.c | -rw-r--r-- | 4.1 KB |
| utsname.c | -rw-r--r-- | 3.8 KB |
| utsname_sysctl.c | -rw-r--r-- | 3.2 KB |
| watch_queue.c | -rw-r--r-- | 16.4 KB |
| watchdog.c | -rw-r--r-- | 20.1 KB |
| watchdog_hld.c | -rw-r--r-- | 7.7 KB |
| workqueue.c | -rw-r--r-- | 166.2 KB |
| workqueue_internal.h | -rw-r--r-- | 2.4 KB |
Computing file changes ...
