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authorJosef Whiter <jwhiter@redhat.com>2007-07-23 10:02:40 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2007-10-10 08:54:42 +0100
commit26caee5bc643b318fa2e9bd4f66dace1755ec413 (patch)
treed41f2a4c131de2eb6e0981b9d7c8eb9c2ae25255 /fs/gfs2/glock.c
parent87124e581bfeaa5864662a435b6ee2a19e91b905 (diff)
downloadop-kernel-dev-26caee5bc643b318fa2e9bd4f66dace1755ec413.zip
op-kernel-dev-26caee5bc643b318fa2e9bd4f66dace1755ec413.tar.gz
[GFS2] Fix calculation of demote state
If a glock is in the exclusive state and a request for demote to deferred has been received, then further requests for demote to shared are being ignored. This patch fixes that by ensuring that we demote to unlocked in that case. Signed-off-by: Josef Whiter <jwhiter@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/glock.c')
-rw-r--r--fs/gfs2/glock.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 6a3eeba..6b6ae45 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -697,8 +697,9 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state, int remot
}
return;
}
- } else if (gl->gl_demote_state != LM_ST_UNLOCKED) {
- gl->gl_demote_state = state;
+ } else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
+ gl->gl_demote_state != state) {
+ gl->gl_demote_state = LM_ST_UNLOCKED;
}
spin_unlock(&gl->gl_spin);
}
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