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| author | Zdenek Kabelac <zkabelac@redhat.com> | 2017-01-23 14:24:27 +0100 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2017-01-23 14:55:47 +0100 |
| commit | ec93f37b86977380b59080981fb912ff30dd80ab (patch) | |
| tree | 2964488b0bd694ca99c8216a26ce3883a3938453 | |
| parent | 836eb122cec35c1f00281968d92f9d85e67652d7 (diff) | |
| download | lvm2-ec93f37b86977380b59080981fb912ff30dd80ab.tar.gz | |
toolcontext: action for LVM_RUN_BY_DMEVENTD env var
When LVM_RUN_BY_DMEVENTD is set to 1, ensure there will
be no interaction with dmeventd.
| -rw-r--r-- | lib/commands/toolcontext.c | 3 | ||||
| -rw-r--r-- | man/lvm.8.in | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/lib/commands/toolcontext.c b/lib/commands/toolcontext.c index 2843bf800..678ee8a0c 100644 --- a/lib/commands/toolcontext.c +++ b/lib/commands/toolcontext.c @@ -192,6 +192,9 @@ static int _get_env_vars(struct cmd_context *cmd) } } + if (strcmp((getenv("LVM_RUN_BY_DMEVENTD") ? : "0"), "1") == 0) + init_run_by_dmeventd(cmd); + return 1; } diff --git a/man/lvm.8.in b/man/lvm.8.in index f1ffc7a74..cad724bfa 100644 --- a/man/lvm.8.in +++ b/man/lvm.8.in @@ -668,6 +668,11 @@ File descriptor to use for report output from LVM commands. Name of default command profile to use for LVM commands. This profile is overriden by direct use of \fB\-\-commandprofile\fP command line option. .TP +.B LVM_RUN_BY_DMEVENTD +This variable is normally set by dmeventd plugin to inform lvm2 command +it is running from dmeventd plugin so lvm2 takes some extra action +to avoid comunication and deadlocks with dmeventd. +.TP .B LVM_SYSTEM_DIR Directory containing \fBlvm.conf\fP(5) and other LVM system files. Defaults to "\fI#DEFAULT_SYS_DIR#\fP". |