Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw

Pull GFS2 updates from Steven Whitehouse:
 "There is not a whole lot of change this time - there are some further
  changes which are in the works, but those will be held over until next
  time.

  Here there are some clean ups to inode creation, the addition of an
  origin (local or remote) indicator to glock demote requests, removal
  of one of the remaining GFP_NOFAIL allocations during log flushes, one
  minor clean up, and a one liner bug fix."

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw:
  GFS2: Flush work queue before clearing glock hash tables
  GFS2: Add origin indicator to glock demote tracing
  GFS2: Add origin indicator to glock callbacks
  GFS2: replace gfs2_ail structure with gfs2_trans
  GFS2: Remove vestigial parameter ip from function rs_deltree
  GFS2: Use gfs2_dinode_out() in the inode create path
  GFS2: Remove gfs2_refresh_inode from inode creation path
  GFS2: Clean up inode creation path

fs/gfs2/aops.c

@@ -1055,7 +1055,7 @@ int gfs2_releasepage(struct page *page, gfp_t gfp_mask)
 		if (atomic_read(&bh->b_count))
 			goto cannot_release;
 		bd = bh->b_private;
-		if (bd && bd->bd_ail)
+		if (bd && bd->bd_tr)
 			goto cannot_release;
 		if (buffer_pinned(bh) || buffer_dirty(bh))
 			goto not_possible;

fs/gfs2/bmap.c

@@ -787,7 +787,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
 		goto out_rlist;
 
 	if (gfs2_rs_active(ip->i_res)) /* needs to be done with the rgrp glock held */
-		gfs2_rs_deltree(ip, ip->i_res);
+		gfs2_rs_deltree(ip->i_res);
 
 	error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE +
 				 RES_INDIRECT + RES_STATFS + RES_QUOTA,

fs/gfs2/glock.c

@@ -912,7 +912,7 @@ int gfs2_glock_wait(struct gfs2_holder *gh)
  */
 
 static void handle_callback(struct gfs2_glock *gl, unsigned int state,
-			    unsigned long delay)
+			    unsigned long delay, bool remote)
 {
 	int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE;
 
@@ -925,8 +925,8 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
 		gl->gl_demote_state = LM_ST_UNLOCKED;
 	}
 	if (gl->gl_ops->go_callback)
-		gl->gl_ops->go_callback(gl);
-	trace_gfs2_demote_rq(gl);
+		gl->gl_ops->go_callback(gl, remote);
+	trace_gfs2_demote_rq(gl, remote);
 }
 
 void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...)
@@ -1091,7 +1091,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
 
 	spin_lock(&gl->gl_spin);
 	if (gh->gh_flags & GL_NOCACHE)
-		handle_callback(gl, LM_ST_UNLOCKED, 0);
+		handle_callback(gl, LM_ST_UNLOCKED, 0, false);
 
 	list_del_init(&gh->gh_list);
 	if (find_first_holder(gl) == NULL) {
@@ -1279,19 +1279,6 @@ void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs)
 		gfs2_glock_dq(&ghs[num_gh]);
 }
 
-/**
- * gfs2_glock_dq_uninit_m - release multiple glocks
- * @num_gh: the number of structures
- * @ghs: an array of struct gfs2_holder structures
- *
- */
-
-void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs)
-{
-	while (num_gh--)
-		gfs2_glock_dq_uninit(&ghs[num_gh]);
-}
-
 void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
 {
 	unsigned long delay = 0;
@@ -1309,7 +1296,7 @@ void gfs2_glock_cb(struct gfs2_glock *gl, unsigned int state)
 	}
 
 	spin_lock(&gl->gl_spin);
-	handle_callback(gl, state, delay);
+	handle_callback(gl, state, delay, true);
 	spin_unlock(&gl->gl_spin);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
 		gfs2_glock_put(gl);
@@ -1422,7 +1409,7 @@ __acquires(&lru_lock)
 		spin_unlock(&lru_lock);
 		spin_lock(&gl->gl_spin);
 		if (demote_ok(gl))
-			handle_callback(gl, LM_ST_UNLOCKED, 0);
+			handle_callback(gl, LM_ST_UNLOCKED, 0, false);
 		WARN_ON(!test_and_clear_bit(GLF_LOCK, &gl->gl_flags));
 		smp_mb__after_clear_bit();
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
@@ -1547,7 +1534,7 @@ static void clear_glock(struct gfs2_glock *gl)
 
 	spin_lock(&gl->gl_spin);
 	if (gl->gl_state != LM_ST_UNLOCKED)
-		handle_callback(gl, LM_ST_UNLOCKED, 0);
+		handle_callback(gl, LM_ST_UNLOCKED, 0, false);
 	spin_unlock(&gl->gl_spin);
 	gfs2_glock_hold(gl);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
@@ -1590,6 +1577,7 @@ static void dump_glock_func(struct gfs2_glock *gl)
 void gfs2_gl_hash_clear(struct gfs2_sbd *sdp)
 {
 	set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
+	flush_workqueue(glock_workqueue);
 	glock_hash_walk(clear_glock, sdp);
 	flush_workqueue(glock_workqueue);
 	wait_event(sdp->sd_glock_wait, atomic_read(&sdp->sd_glock_disposal) == 0);

fs/gfs2/glock.h

@@ -201,7 +201,6 @@ extern int gfs2_glock_nq_num(struct gfs2_sbd *sdp, u64 number,
 			     struct gfs2_holder *gh);
 extern int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs);
 extern void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs);
-extern void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs);
 extern int gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl);
 #define GLOCK_BUG_ON(gl,x) do { if (unlikely(x)) { gfs2_dump_glock(NULL, gl); BUG(); } } while(0)
 extern __printf(2, 3)

fs/gfs2/glops.c

@@ -515,12 +515,12 @@ static int trans_go_demote_ok(const struct gfs2_glock *gl)
  *
  * gl_spin lock is held while calling this
  */
-static void iopen_go_callback(struct gfs2_glock *gl)
+static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
 {
 	struct gfs2_inode *ip = (struct gfs2_inode *)gl->gl_object;
 	struct gfs2_sbd *sdp = gl->gl_sbd;
 
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
+	if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY))
 		return;
 
 	if (gl->gl_demote_state == LM_ST_UNLOCKED &&

fs/gfs2/incore.h

@@ -31,7 +31,6 @@ struct gfs2_holder;
 struct gfs2_glock;
 struct gfs2_quota_data;
 struct gfs2_trans;
-struct gfs2_ail;
 struct gfs2_jdesc;
 struct gfs2_sbd;
 struct lm_lockops;
@@ -53,7 +52,7 @@ struct gfs2_log_header_host {
 
 struct gfs2_log_operations {
 	void (*lo_before_commit) (struct gfs2_sbd *sdp);
-	void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_ail *ai);
+	void (*lo_after_commit) (struct gfs2_sbd *sdp, struct gfs2_trans *tr);
 	void (*lo_before_scan) (struct gfs2_jdesc *jd,
 				struct gfs2_log_header_host *head, int pass);
 	int (*lo_scan_elements) (struct gfs2_jdesc *jd, unsigned int start,
@@ -139,7 +138,7 @@ struct gfs2_bufdata {
 	struct list_head bd_list;
 	const struct gfs2_log_operations *bd_ops;
 
-	struct gfs2_ail *bd_ail;
+	struct gfs2_trans *bd_tr;
 	struct list_head bd_ail_st_list;
 	struct list_head bd_ail_gl_list;
 };
@@ -211,7 +210,7 @@ struct gfs2_glock_operations {
 	int (*go_lock) (struct gfs2_holder *gh);
 	void (*go_unlock) (struct gfs2_holder *gh);
 	int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
-	void (*go_callback) (struct gfs2_glock *gl);
+	void (*go_callback)(struct gfs2_glock *gl, bool remote);
 	const int go_type;
 	const unsigned long go_flags;
 #define GLOF_ASPACE 1
@@ -433,21 +432,20 @@ struct gfs2_trans {
 	struct gfs2_holder tr_t_gh;
 
 	int tr_touched;
+	int tr_attached;
 
 	unsigned int tr_num_buf_new;
 	unsigned int tr_num_databuf_new;
 	unsigned int tr_num_buf_rm;
 	unsigned int tr_num_databuf_rm;
 	unsigned int tr_num_revoke;
 	unsigned int tr_num_revoke_rm;
-};
 
-struct gfs2_ail {
-	struct list_head ai_list;
+	struct list_head tr_list;
 
-	unsigned int ai_first;
-	struct list_head ai_ail1_list;
-	struct list_head ai_ail2_list;
+	unsigned int tr_first;
+	struct list_head tr_ail1_list;
+	struct list_head tr_ail2_list;
 };
 
 struct gfs2_journal_extent {
@@ -710,6 +708,7 @@ struct gfs2_sbd {
 
 	spinlock_t sd_log_lock;
 
+	struct gfs2_trans *sd_log_tr;
 	unsigned int sd_log_blks_reserved;
 	unsigned int sd_log_commited_buf;
 	unsigned int sd_log_commited_databuf;