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dlm: add new RELEASE_RECOVER uevent attribute for release_lockspace

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RELEASE_RECOVER=0|1 is passed to user space as part of the OFFLINE
uevent for leaving a lockspace, and used by subsequent patches.
RELEASE_RECOVER=1 tells user space that the release_lockspace/leave
should be handled by the remaining lockspace members as if the
leaving node had failed.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Alexander Aring 2025-07-23 11:21:54 -04:00 committed by David Teigland
parent bea90085dc
commit 5665374c72
1 changed files with 12 additions and 7 deletions
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19
fs/dlm/lockspace.c
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@ -186,12 +186,17 @@ static struct kobj_type dlm_ktype = {
static struct kset *dlm_kset;
static int do_uevent(struct dlm_ls *ls, int in)
static int do_uevent(struct dlm_ls *ls, int in, unsigned int release_recover)
{
if (in)
char message[512] = {};
char *envp[] = { message, NULL };
if (in) {
kobject_uevent(&ls->ls_kobj, KOBJ_ONLINE);
else
kobject_uevent(&ls->ls_kobj, KOBJ_OFFLINE);
} else {
snprintf(message, 511, "RELEASE_RECOVER=%u", release_recover);
kobject_uevent_env(&ls->ls_kobj, KOBJ_OFFLINE, envp);
}
log_rinfo(ls, "%s the lockspace group...", in ? "joining" : "leaving");
@ -575,7 +580,7 @@ static int new_lockspace(const char *name, const char *cluster,
current lockspace members are (via configfs) and then tells the
lockspace to start running (via sysfs) in dlm_ls_start(). */
error = do_uevent(ls, 1);
error = do_uevent(ls, 1, 0);
if (error < 0)
goto out_recoverd;
@ -592,7 +597,7 @@ static int new_lockspace(const char *name, const char *cluster,
return 0;
out_members:
do_uevent(ls, 0);
do_uevent(ls, 0, 0);
dlm_clear_members(ls);
kfree(ls->ls_node_array);
out_recoverd:
@ -733,7 +738,7 @@ static int release_lockspace(struct dlm_ls *ls, int release_option)
if (release_option != DLM_RELEASE_NO_EVENT &&
dlm_user_daemon_available())
do_uevent(ls, 0);
do_uevent(ls, 0, 0);
dlm_recoverd_stop(ls);