diff options
Diffstat (limited to 'tools/vgchange.c')
| -rw-r--r-- | tools/vgchange.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/vgchange.c b/tools/vgchange.c index 80d91c647..3e22b09df 100644 --- a/tools/vgchange.c +++ b/tools/vgchange.c @@ -665,8 +665,45 @@ static int vgchange_single(struct cmd_context *cmd, const char *vg_name, return ret; } +/* + * vgchange can do a different things that require different + * locking, so look at each of those things here. + * + * Set up overrides for the default VG locking for various special cases. + * The VG lock will be acquired in process_each_vg. + * + * Acquire the gl lock according to which kind of vgchange command this is. + */ + static int dlock_vgchange(struct cmd_context *cmd, int argc, char **argv) { + /* The default vg lock mode is ex, but these options only need sh. */ + + if (arg_is_set(cmd, activate_ARG) || arg_is_set(cmd, refresh_ARG)) + cmd->command->flags |= DLOCK_VG_SH; + + /* Starting a vg lockspace means there are no locks available yet. */ + + if (arg_is_set(cmd, lockstart_ARG)) + cmd->disable_dlock_vg = 1; + + /* + * In most cases, dlock_vg does not apply when changing lock type. + * (We don't generally allow changing *from* dlock type yet.) + * dlock_vg could be called within _vgchange_locktype as needed. + */ + + if (arg_is_set(cmd, locktype_ARG)) + cmd->disable_dlock_vg = 1; + + /* + * Changing system_id or lock_type must only be done on explicitly + * named vgs. + */ + + if (arg_is_set(cmd, systemid_ARG) || arg_is_set(cmd, locktype_ARG)) + cmd->command->flags &= ~ALL_VGS_IS_DEFAULT; + if (!argc || arg_tag_count(argc, argv) || arg_is_set(cmd, lockstart_ARG)) { /* * The first two standard conditions want the current |