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authorSteven Whitehouse <swhiteho@redhat.com>2010-01-29 15:21:27 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2010-02-03 09:56:21 +0000
commit8f05228ee7c8f409ae3c6f9c3e13d7ccb9c18360 (patch)
tree34e8cf87485edf4ecb6878ade96704975e5d5bf5 /fs/gfs2/lock_dlm.c
parente402746a945ceb9d0486a8e3d5917c9228fa4404 (diff)
GFS2: Extend umount wait coverage to full glock lifetime
Although all glocks are, by the time of the umount glock wait, scheduled for demotion, some of them haven't made it far enough through the process for the original set of waiting code to wait for them. This extends the ref count to the whole glock lifetime in order to ensure that the waiting does catch all glocks. It does make it a bit more invasive, but it seems the only sensible solution at the moment. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/lock_dlm.c')
-rw-r--r--fs/gfs2/lock_dlm.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index cdd0755d782..0e5e0e7022e 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -167,15 +167,16 @@ static unsigned int gdlm_lock(struct gfs2_glock *gl,
return LM_OUT_ASYNC;
}
-static void gdlm_put_lock(struct kmem_cache *cachep, void *ptr)
+static void gdlm_put_lock(struct kmem_cache *cachep, struct gfs2_glock *gl)
{
- struct gfs2_glock *gl = ptr;
struct gfs2_sbd *sdp = gl->gl_sbd;
struct lm_lockstruct *ls = &sdp->sd_lockstruct;
int error;
if (gl->gl_lksb.sb_lkid == 0) {
kmem_cache_free(cachep, gl);
+ if (atomic_dec_and_test(&sdp->sd_glock_disposal))
+ wake_up(&sdp->sd_glock_wait);
return;
}
@@ -187,7 +188,6 @@ static void gdlm_put_lock(struct kmem_cache *cachep, void *ptr)
(unsigned long long)gl->gl_name.ln_number, error);
return;
}
- atomic_inc(&sdp->sd_glock_disposal);
}
static void gdlm_cancel(struct gfs2_glock *gl)