AMD IOMMU: avoid unnecessary low zone allocation in alloc_coherent

[linux-2.6-omap-h63xx.git] / fs / gfs2 / glock.h

diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 2f9c6d136b37a860a790367a35e02c2e59d47130..971d92af70fce8ff1e857e73242c322352fcf50c 100644 (file)
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -26,30 +26,28 @@
 #define GL_SKIP                        0x00000100
 #define GL_ATIME               0x00000200
 #define GL_NOCACHE             0x00000400
-#define GL_FLOCK               0x00000800
-#define GL_NOCANCEL            0x00001000
 
 #define GLR_TRYFAILED          13
-#define GLR_CANCELED           14
 
-static inline int gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
+static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
 {
        struct gfs2_holder *gh;
-       int locked = 0;
        struct pid *pid;
 
        /* Look in glock's list of holders for one with current task as owner */
        spin_lock(&gl->gl_spin);
        pid = task_pid(current);
        list_for_each_entry(gh, &gl->gl_holders, gh_list) {
-               if (gh->gh_owner_pid == pid) {
-                       locked = 1;
+               if (!test_bit(HIF_HOLDER, &gh->gh_iflags))
                        break;
-               }
+               if (gh->gh_owner_pid == pid)
+                       goto out;
        }
+       gh = NULL;
+out:
        spin_unlock(&gl->gl_spin);
 
-       return locked;
+       return gh;
 }
 
 static inline int gfs2_glock_is_held_excl(struct gfs2_glock *gl)
@@ -71,7 +69,7 @@ static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
 {
        int ret;
        spin_lock(&gl->gl_spin);
-       ret = test_bit(GLF_DEMOTE, &gl->gl_flags) || !list_empty(&gl->gl_waiters3);
+       ret = test_bit(GLF_DEMOTE, &gl->gl_flags);
        spin_unlock(&gl->gl_spin);
        return ret;
 }
@@ -79,7 +77,6 @@ static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
 int gfs2_glock_get(struct gfs2_sbd *sdp,
                   u64 number, const struct gfs2_glock_operations *glops,
                   int create, struct gfs2_glock **glp);
-void gfs2_glock_hold(struct gfs2_glock *gl);
 int gfs2_glock_put(struct gfs2_glock *gl);
 void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
                      struct gfs2_holder *gh);
@@ -100,6 +97,7 @@ int gfs2_glock_nq_num(struct gfs2_sbd *sdp,
 int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs);
 void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs);
 void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs);
+void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...);
 
 /**
  * gfs2_glock_nq_init - intialize a holder and enqueue it on a glock
@@ -132,10 +130,9 @@ int gfs2_lvb_hold(struct gfs2_glock *gl);
 void gfs2_lvb_unhold(struct gfs2_glock *gl);
 
 void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
-
 void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
 void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
-void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait);
+void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
 
 int __init gfs2_glock_init(void);
 void gfs2_glock_exit(void);