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lvmlockd: accept repeated global lock requests

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It's not an error if a command requests the global lock
when it has already acquired it.  It shouldn't happen,
but there could be cases we've not found.
This commit is contained in:
David Teigland 2018-05-23 13:16:48 -05:00
parent 6a44dceb48
commit 0c1d3db8db
1 changed files with 10 additions and 0 deletions
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10
lib/locking/lvmlockd.c
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@ -1547,6 +1547,16 @@ int lockd_gl(struct cmd_context *cmd, const char *def_mode, uint32_t flags)
}
}
if (result == -EALREADY) {
/*
* This should generally not happen because commands should be coded
* to avoid reacquiring the global lock. If there is a case that's
* missed which causes the command to request the gl when it's already
* held, it's not a problem, so let it go.
*/
log_debug("lockd global mode %s already held.", mode);
return 1;
}
if (!strcmp(mode, "un"))
return 1;