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authorSteven Whitehouse <swhiteho@redhat.com>2010-01-25 12:20:19 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2010-02-03 10:47:04 +0100
commite402746a945ceb9d0486a8e3d5917c9228fa4404 (patch)
treec2e6c4d619c1cf35e97b16a9849517871c15d97b /fs/gfs2/super.c
parentMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block (diff)
downloadlinux-e402746a945ceb9d0486a8e3d5917c9228fa4404.tar.xz
linux-e402746a945ceb9d0486a8e3d5917c9228fa4404.zip
GFS2: Wait for unlock completion on umount
This patch adds a wait on umount between the point at which we dispose of all glocks and the point at which we unmount the lock protocol. This ensures that we've received all the replies to our unlock requests before we stop the locking. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reported-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Diffstat (limited to '')
-rw-r--r--fs/gfs2/super.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index c282ad41f3d1..66242b32db5b 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -21,6 +21,7 @@
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/time.h>
+#include <linux/wait.h>
#include "gfs2.h"
#include "incore.h"
@@ -860,6 +861,8 @@ restart:
gfs2_jindex_free(sdp);
/* Take apart glock structures and buffer lists */
gfs2_gl_hash_clear(sdp);
+ /* Wait for dlm to reply to all our unlock requests */
+ wait_event(sdp->sd_glock_wait, atomic_read(&sdp->sd_glock_disposal) == 0);
/* Unmount the locking protocol */
gfs2_lm_unmount(sdp);