Commit 660a6126 authored by Alexander Aring's avatar Alexander Aring Committed by Andreas Gruenbacher
Browse files

gfs2: check context in gfs2_glock_put 



Add a might_sleep call into gfs2_glock_put which can sleep in DLM when
the last reference is released.  This will show problems earlier, and
not only when the last reference is put.

Signed-off-by: default avatarAlexander Aring <aahringo@redhat.com>
Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
parent 7427f3bb

fs/gfs2/glock.c

+3 −0
Original line number Diff line number Diff line
@@ -301,6 +301,9 @@ void gfs2_glock_queue_put(struct gfs2_glock *gl) 


void gfs2_glock_put(struct gfs2_glock *gl)

{

	/* last put could call sleepable dlm api */

	might_sleep();



	if (lockref_put_or_lock(&gl->gl_lockref))

		return;