Commit 5665374c authored by Alexander Aring's avatar Alexander Aring Committed by David Teigland
Browse files

dlm: add new RELEASE_RECOVER uevent attribute for release_lockspace 



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: default avatarAlexander Aring <aahringo@redhat.com>
Signed-off-by: default avatarDavid Teigland <teigland@redhat.com>
parent bea90085

fs/dlm/lockspace.c

+12 −7
Original line number Diff line number Diff line
@@ -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);