1 files changed, 47 insertions, 4 deletions

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index a8387e0b5068..611f84d22573 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -35,7 +35,6 @@
 #include "glock.h"
 #include "glops.h"
 #include "inode.h"
-#include "lm.h"
 #include "lops.h"
 #include "meta_io.h"
 #include "quota.h"
@@ -183,7 +182,8 @@ static void glock_free(struct gfs2_glock *gl)
         struct gfs2_sbd *sdp = gl->gl_sbd;
         struct inode *aspace = gl->gl_aspace;
 
-        gfs2_lm_put_lock(sdp, gl->gl_lock);
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                sdp->sd_lockstruct.ls_ops->lm_put_lock(gl->gl_lock);
 
         if (aspace)
                 gfs2_aspace_put(aspace);
@@ -293,6 +293,16 @@ static void glock_work_func(struct work_struct *work)
         gfs2_glock_put(gl);
 }
 
+static int gfs2_lm_get_lock(struct gfs2_sbd *sdp, struct lm_lockname *name,
+                     void **lockp)
+{
+        int error = -EIO;
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                error = sdp->sd_lockstruct.ls_ops->lm_get_lock(
+                                sdp->sd_lockstruct.ls_lockspace, name, lockp);
+        return error;
+}
+
 /**
  * gfs2_glock_get() - Get a glock, or create one if one doesn't exist
  * @sdp: The GFS2 superblock
@@ -882,6 +892,17 @@ out:
                 gfs2_holder_wake(gh);
 }
 
+static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
+                                 unsigned int cur_state, unsigned int req_state,
+                                 unsigned int flags)
+{
+        int ret = 0;
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                ret = sdp->sd_lockstruct.ls_ops->lm_lock(lock, cur_state,
+                                                         req_state, flags);
+        return ret;
+}
+
 /**
  * gfs2_glock_xmote_th - Call into the lock module to acquire or change a glock
  * @gl: The glock in question
@@ -922,6 +943,15 @@ static void gfs2_glock_xmote_th(struct gfs2_glock *gl, struct gfs2_holder *gh)
                 xmote_bh(gl, lck_ret);
 }
 
+static unsigned int gfs2_lm_unlock(struct gfs2_sbd *sdp, void *lock,
+                                   unsigned int cur_state)
+{
+        int ret = 0;
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                ret =  sdp->sd_lockstruct.ls_ops->lm_unlock(lock, cur_state);
+        return ret;
+}
+
 /**
  * gfs2_glock_drop_th - call into the lock module to unlock a lock
  * @gl: the glock
@@ -964,6 +994,7 @@ static void gfs2_glock_drop_th(struct gfs2_glock *gl)
 static void do_cancels(struct gfs2_holder *gh)
 {
         struct gfs2_glock *gl = gh->gh_gl;
+        struct gfs2_sbd *sdp = gl->gl_sbd;
 
         spin_lock(&gl->gl_spin);
 
@@ -972,7 +1003,8 @@ static void do_cancels(struct gfs2_holder *gh)
                !list_empty(&gh->gh_list)) {
                 if (!(gl->gl_req_gh && (gl->gl_req_gh->gh_flags & GL_NOCANCEL))) {
                         spin_unlock(&gl->gl_spin);
-                        gfs2_lm_cancel(gl->gl_sbd, gl->gl_lock);
+                        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                                sdp->sd_lockstruct.ls_ops->lm_cancel(gl->gl_lock);
                         msleep(100);
                         spin_lock(&gl->gl_spin);
                 } else {
@@ -1426,6 +1458,14 @@ void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs)
                 gfs2_glock_dq_uninit(&ghs[x]);
 }
 
+static int gfs2_lm_hold_lvb(struct gfs2_sbd *sdp, void *lock, char **lvbp)
+{
+        int error = -EIO;
+        if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                error = sdp->sd_lockstruct.ls_ops->lm_hold_lvb(lock, lvbp);
+        return error;
+}
+
 /**
  * gfs2_lvb_hold - attach a LVB from a glock
  * @gl: The glock in question
@@ -1461,12 +1501,15 @@ int gfs2_lvb_hold(struct gfs2_glock *gl)
 
 void gfs2_lvb_unhold(struct gfs2_glock *gl)
 {
+        struct gfs2_sbd *sdp = gl->gl_sbd;
+
         gfs2_glock_hold(gl);
         gfs2_glmutex_lock(gl);
 
         gfs2_assert(gl->gl_sbd, atomic_read(&gl->gl_lvb_count) > 0);
         if (atomic_dec_and_test(&gl->gl_lvb_count)) {
-                gfs2_lm_unhold_lvb(gl->gl_sbd, gl->gl_lock, gl->gl_lvb);
+                if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)))
+                        sdp->sd_lockstruct.ls_ops->lm_unhold_lvb(gl->gl_lock, gl->gl_lvb);
                 gl->gl_lvb = NULL;
                 gfs2_glock_put(gl);
         }