Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (56 commits)
  [GFS2] Allow journal recovery on read-only mount
  [GFS2] Lockup on error
  [GFS2] Fix page_mkwrite truncation race path
  [GFS2] Fix typo
  [GFS2] Fix write alloc required shortcut calculation
  [GFS2] gfs2_alloc_required performance
  [GFS2] Remove unneeded i_spin
  [GFS2] Reduce inode size by moving i_alloc out of line
  [GFS2] Fix assert in log code
  [GFS2] Fix problems relating to execution of files on GFS2
  [GFS2] Initialize extent_list earlier
  [GFS2] Allow page migration for writeback and ordered pages
  [GFS2] Remove unused variable
  [GFS2] Fix log block mapper
  [GFS2] Minor correction
  [GFS2] Eliminate the no longer needed sd_statfs_mutex
  [GFS2] Incremental patch to fix compiler warning
  [GFS2] Function meta_read optimization
  [GFS2] Only fetch the dinode once in block_map
  [GFS2] Reorganize function gfs2_glmutex_lock
  ...

40 files changed, 1092 insertions, 1109 deletions

diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 04ad0caebedb..8fff11058cee 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -2,7 +2,7 @@ obj-$(CONFIG_GFS2_FS) += gfs2.o
 gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
 	glops.o inode.o lm.o log.o lops.o locking.o main.o meta_io.o \
 	mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
-	ops_fstype.o ops_inode.o ops_super.o ops_vm.o quota.o \
+	ops_fstype.o ops_inode.o ops_super.o quota.o \
 	recovery.o rgrp.o super.o sys.o trans.o util.o
 
 obj-$(CONFIG_GFS2_FS_LOCKING_NOLOCK) += locking/nolock/
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 93fa427bb5f5..e4effc47abfc 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -59,7 +59,6 @@ struct strip_mine {
 static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
 			       u64 block, struct page *page)
 {
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct inode *inode = &ip->i_inode;
 	struct buffer_head *bh;
 	int release = 0;
@@ -95,7 +94,7 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
 	set_buffer_uptodate(bh);
 	if (!gfs2_is_jdata(ip))
 		mark_buffer_dirty(bh);
-	if (sdp->sd_args.ar_data == GFS2_DATA_ORDERED || gfs2_is_jdata(ip))
+	if (!gfs2_is_writeback(ip))
 		gfs2_trans_add_bh(ip->i_gl, bh, 0);
 
 	if (release) {
@@ -453,8 +452,8 @@ static inline void bmap_unlock(struct inode *inode, int create)
  * Returns: errno
  */
 
-int gfs2_block_map(struct inode *inode, u64 lblock, int create,
-		   struct buffer_head *bh_map)
+int gfs2_block_map(struct inode *inode, sector_t lblock,
+		   struct buffer_head *bh_map, int create)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -470,6 +469,7 @@ int gfs2_block_map(struct inode *inode, u64 lblock, int create,
 	unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
 	struct metapath mp;
 	u64 size;
+	struct buffer_head *dibh = NULL;
 
 	BUG_ON(maxlen == 0);
 
@@ -500,6 +500,8 @@ int gfs2_block_map(struct inode *inode, u64 lblock, int create,
 	error = gfs2_meta_inode_buffer(ip, &bh);
 	if (error)
 		goto out_fail;
+	dibh = bh;
+	get_bh(dibh);
 
 	for (x = 0; x < end_of_metadata; x++) {
 		lookup_block(ip, bh, x, &mp, create, &new, &dblock);
@@ -518,13 +520,8 @@ int gfs2_block_map(struct inode *inode, u64 lblock, int create,
 		if (boundary)
 			set_buffer_boundary(bh_map);
 		if (new) {
-			struct buffer_head *dibh;
-			error = gfs2_meta_inode_buffer(ip, &dibh);
-			if (!error) {
-				gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-				gfs2_dinode_out(ip, dibh->b_data);
-				brelse(dibh);
-			}
+			gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+			gfs2_dinode_out(ip, dibh->b_data);
 			set_buffer_new(bh_map);
 			goto out_brelse;
 		}
@@ -545,6 +542,8 @@ out_brelse:
 out_ok:
 	error = 0;
 out_fail:
+	if (dibh)
+		brelse(dibh);
 	bmap_unlock(inode, create);
 	return error;
 }
@@ -560,7 +559,7 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi
 	BUG_ON(!new);
 
 	bh.b_size = 1 << (inode->i_blkbits + 5);
-	ret = gfs2_block_map(inode, lblock, create, &bh);
+	ret = gfs2_block_map(inode, lblock, &bh, create);
 	*extlen = bh.b_size >> inode->i_blkbits;
 	*dblock = bh.b_blocknr;
 	if (buffer_new(&bh))
@@ -684,7 +683,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
 	if (metadata)
 		revokes = (height) ? sdp->sd_inptrs : sdp->sd_diptrs;
 
-	error = gfs2_rindex_hold(sdp, &ip->i_alloc.al_ri_gh);
+	error = gfs2_rindex_hold(sdp, &ip->i_alloc->al_ri_gh);
 	if (error)
 		return error;
 
@@ -786,7 +785,7 @@ out_rg_gunlock:
 out_rlist:
 	gfs2_rlist_free(&rlist);
 out:
-	gfs2_glock_dq_uninit(&ip->i_alloc.al_ri_gh);
+	gfs2_glock_dq_uninit(&ip->i_alloc->al_ri_gh);
 	return error;
 }
 
@@ -879,7 +878,6 @@ static int gfs2_block_truncate_page(struct address_space *mapping)
 {
 	struct inode *inode = mapping->host;
 	struct gfs2_inode *ip = GFS2_I(inode);
-	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	loff_t from = inode->i_size;
 	unsigned long index = from >> PAGE_CACHE_SHIFT;
 	unsigned offset = from & (PAGE_CACHE_SIZE-1);
@@ -911,7 +909,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping)
 	err = 0;
 
 	if (!buffer_mapped(bh)) {
-		gfs2_get_block(inode, iblock, bh, 0);
+		gfs2_block_map(inode, iblock, bh, 0);
 		/* unmapped? It's a hole - nothing to do */
 		if (!buffer_mapped(bh))
 			goto unlock;
@@ -931,7 +929,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping)
 		err = 0;
 	}
 
-	if (sdp->sd_args.ar_data == GFS2_DATA_ORDERED || gfs2_is_jdata(ip))
+	if (!gfs2_is_writeback(ip))
 		gfs2_trans_add_bh(ip->i_gl, bh, 0);
 
 	zero_user_page(page, offset, length, KM_USER0);
@@ -1224,8 +1222,13 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
 		do_div(lblock_stop, bsize);
 	} else {
 		unsigned int shift = sdp->sd_sb.sb_bsize_shift;
+		u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;
 		lblock = offset >> shift;
 		lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
+		if (lblock_stop > end_of_file) {
+			*alloc_required = 1;
+			return 0;
+		}
 	}
 
 	for (; lblock < lblock_stop; lblock += extlen) {
diff --git a/fs/gfs2/bmap.h b/fs/gfs2/bmap.h
index ac2fd04370dc..4e6cde2943bd 100644
--- a/fs/gfs2/bmap.h
+++ b/fs/gfs2/bmap.h
@@ -15,7 +15,7 @@ struct gfs2_inode;
 struct page;
 
 int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
-int gfs2_block_map(struct inode *inode, u64 lblock, int create, struct buffer_head *bh);
+int gfs2_block_map(struct inode *inode, sector_t lblock, struct buffer_head *bh, int create);
 int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
 
 int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
diff --git a/fs/gfs2/daemon.c b/fs/gfs2/daemon.c
index 3731ab0771d5..e51991947d2c 100644
--- a/fs/gfs2/daemon.c
+++ b/fs/gfs2/daemon.c
@@ -83,56 +83,6 @@ int gfs2_recoverd(void *data)
 }
 
 /**
- * gfs2_logd - Update log tail as Active Items get flushed to in-place blocks
- * @sdp: Pointer to GFS2 superblock
- *
- * Also, periodically check to make sure that we're using the most recent
- * journal index.
- */
-
-int gfs2_logd(void *data)
-{
-	struct gfs2_sbd *sdp = data;
-	struct gfs2_holder ji_gh;
-	unsigned long t;
-	int need_flush;
-
-	while (!kthread_should_stop()) {
-		/* Advance the log tail */
-
-		t = sdp->sd_log_flush_time +
-		    gfs2_tune_get(sdp, gt_log_flush_secs) * HZ;
-
-		gfs2_ail1_empty(sdp, DIO_ALL);
-		gfs2_log_lock(sdp);
-		need_flush = sdp->sd_log_num_buf > gfs2_tune_get(sdp, gt_incore_log_blocks);
-		gfs2_log_unlock(sdp);
-		if (need_flush || time_after_eq(jiffies, t)) {
-			gfs2_log_flush(sdp, NULL);
-			sdp->sd_log_flush_time = jiffies;
-		}
-
-		/* Check for latest journal index */
-
-		t = sdp->sd_jindex_refresh_time +
-		    gfs2_tune_get(sdp, gt_jindex_refresh_secs) * HZ;
-
-		if (time_after_eq(jiffies, t)) {
-			if (!gfs2_jindex_hold(sdp, &ji_gh))
-				gfs2_glock_dq_uninit(&ji_gh);
-			sdp->sd_jindex_refresh_time = jiffies;
-		}
-
-		t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
-		if (freezing(current))
-			refrigerator();
-		schedule_timeout_interruptible(t);
-	}
-
-	return 0;
-}
-
-/**
  * gfs2_quotad - Write cached quota changes into the quota file
  * @sdp: Pointer to GFS2 superblock
  *
diff --git a/fs/gfs2/daemon.h b/fs/gfs2/daemon.h
index 0de9b3557955..4be084fb6a62 100644
--- a/fs/gfs2/daemon.h
+++ b/fs/gfs2/daemon.h
@@ -12,7 +12,6 @@
 
 int gfs2_glockd(void *data);
 int gfs2_recoverd(void *data);
-int gfs2_logd(void *data);
 int gfs2_quotad(void *data);
 
 #endif /* __DAEMON_DOT_H__ */
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 9949bb746a52..57e2ed932adc 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1876,7 +1876,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
 	if (error)
 		goto out;
 
-	error = gfs2_rindex_hold(sdp, &dip->i_alloc.al_ri_gh);
+	error = gfs2_rindex_hold(sdp, &dip->i_alloc->al_ri_gh);
 	if (error)
 		goto out_qs;
 
@@ -1949,7 +1949,7 @@ out_rg_gunlock:
 	gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs);
 out_rlist:
 	gfs2_rlist_free(&rlist);
-	gfs2_glock_dq_uninit(&dip->i_alloc.al_ri_gh);
+	gfs2_glock_dq_uninit(&dip->i_alloc->al_ri_gh);
 out_qs:
 	gfs2_quota_unhold(dip);
 out:
diff --git a/fs/gfs2/eaops.c b/fs/gfs2/eaops.c
index aa8dbf303f6d..f114ba2b3557 100644
--- a/fs/gfs2/eaops.c
+++ b/fs/gfs2/eaops.c
@@ -56,46 +56,6 @@ unsigned int gfs2_ea_name2type(const char *name, const char **truncated_name)
 	return type;
 }
 
-static int user_eo_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-	int error = permission(inode, MAY_READ, NULL);
-	if (error)
-		return error;
-
-	return gfs2_ea_get_i(ip, er);
-}
-
-static int user_eo_set(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-
-	if (S_ISREG(inode->i_mode) ||
-	    (S_ISDIR(inode->i_mode) && !(inode->i_mode & S_ISVTX))) {
-		int error = permission(inode, MAY_WRITE, NULL);
-		if (error)
-			return error;
-	} else
-		return -EPERM;
-
-	return gfs2_ea_set_i(ip, er);
-}
-
-static int user_eo_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-
-	if (S_ISREG(inode->i_mode) ||
-	    (S_ISDIR(inode->i_mode) && !(inode->i_mode & S_ISVTX))) {
-		int error = permission(inode, MAY_WRITE, NULL);
-		if (error)
-			return error;
-	} else
-		return -EPERM;
-
-	return gfs2_ea_remove_i(ip, er);
-}
-
 static int system_eo_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 {
 	if (!GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len) &&
@@ -108,8 +68,6 @@ static int system_eo_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	     GFS2_ACL_IS_DEFAULT(er->er_name, er->er_name_len)))
 		return -EOPNOTSUPP;
 
-
-
 	return gfs2_ea_get_i(ip, er);
 }
 
@@ -170,40 +128,10 @@ static int system_eo_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er)
 	return gfs2_ea_remove_i(ip, er);
 }
 
-static int security_eo_get(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-	int error = permission(inode, MAY_READ, NULL);
-	if (error)
-		return error;
-
-	return gfs2_ea_get_i(ip, er);
-}
-
-static int security_eo_set(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-	int error = permission(inode, MAY_WRITE, NULL);
-	if (error)
-		return error;
-
-	return gfs2_ea_set_i(ip, er);
-}
-
-static int security_eo_remove(struct gfs2_inode *ip, struct gfs2_ea_request *er)
-{
-	struct inode *inode = &ip->i_inode;
-	int error = permission(inode, MAY_WRITE, NULL);
-	if (error)
-		return error;
-
-	return gfs2_ea_remove_i(ip, er);
-}
-
 static const struct gfs2_eattr_operations gfs2_user_eaops = {
-	.eo_get = user_eo_get,
-	.eo_set = user_eo_set,
-	.eo_remove = user_eo_remove,
+	.eo_get = gfs2_ea_get_i,
+	.eo_set = gfs2_ea_set_i,
+	.eo_remove = gfs2_ea_remove_i,
 	.eo_name = "user",
 };
 
@@ -215,9 +143,9 @@ const struct gfs2_eattr_operations gfs2_system_eaops = {
 };
 
 static const struct gfs2_eattr_operations gfs2_security_eaops = {
-	.eo_get = security_eo_get,
-	.eo_set = security_eo_set,
-	.eo_remove = security_eo_remove,
+	.eo_get = gfs2_ea_get_i,
+	.eo_set = gfs2_ea_set_i,
+	.eo_remove = gfs2_ea_remove_i,
 	.eo_name = "security",
 };
 
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
index 2a7435b5c4dc..bee99704ea10 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/eattr.c
@@ -1418,7 +1418,7 @@ out:
 static int ea_dealloc_block(struct gfs2_inode *ip)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_alloc *al = &ip->i_alloc;
+	struct gfs2_alloc *al = ip->i_alloc;
 	struct gfs2_rgrpd *rgd;
 	struct buffer_head *dibh;
 	int error;
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index a37efe4aae6f..80e09c50590a 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
@@ -217,7 +217,6 @@ int gfs2_glock_put(struct gfs2_glock *gl)
 	if (atomic_dec_and_test(&gl->gl_ref)) {
 		hlist_del(&gl->gl_list);
 		write_unlock(gl_lock_addr(gl->gl_hash));
-		BUG_ON(spin_is_locked(&gl->gl_spin));
 		gfs2_assert(sdp, gl->gl_state == LM_ST_UNLOCKED);
 		gfs2_assert(sdp, list_empty(&gl->gl_reclaim));
 		gfs2_assert(sdp, list_empty(&gl->gl_holders));
@@ -346,7 +345,6 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 	gl->gl_object = NULL;
 	gl->gl_sbd = sdp;
 	gl->gl_aspace = NULL;
-	lops_init_le(&gl->gl_le, &gfs2_glock_lops);
 	INIT_DELAYED_WORK(&gl->gl_work, glock_work_func);
 
 	/* If this glock protects actual on-disk data or metadata blocks,
@@ -461,7 +459,6 @@ static void wait_on_holder(struct gfs2_holder *gh)
 
 static void gfs2_demote_wake(struct gfs2_glock *gl)
 {
-	BUG_ON(!spin_is_locked(&gl->gl_spin));
 	gl->gl_demote_state = LM_ST_EXCLUSIVE;
         clear_bit(GLF_DEMOTE, &gl->gl_flags);
         smp_mb__after_clear_bit();
@@ -507,21 +504,12 @@ static int rq_mutex(struct gfs2_holder *gh)
 static int rq_promote(struct gfs2_holder *gh)
 {
 	struct gfs2_glock *gl = gh->gh_gl;
-	struct gfs2_sbd *sdp = gl->gl_sbd;
 
 	if (!relaxed_state_ok(gl->gl_state, gh->gh_state, gh->gh_flags)) {
 		if (list_empty(&gl->gl_holders)) {
 			gl->gl_req_gh = gh;
 			set_bit(GLF_LOCK, &gl->gl_flags);
 			spin_unlock(&gl->gl_spin);
-
-			if (atomic_read(&sdp->sd_reclaim_count) >
-			    gfs2_tune_get(sdp, gt_reclaim_limit) &&
-			    !(gh->gh_flags & LM_FLAG_PRIORITY)) {
-				gfs2_reclaim_glock(sdp);
-				gfs2_reclaim_glock(sdp);
-			}
-
 			gfs2_glock_xmote_th(gh->gh_gl, gh);
 			spin_lock(&gl->gl_spin);
 		}
@@ -567,7 +555,10 @@ static int rq_demote(struct gfs2_glock *gl)
 		gfs2_demote_wake(gl);
 		return 0;
 	}
+
 	set_bit(GLF_LOCK, &gl->gl_flags);
+	set_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags);
+
 	if (gl->gl_demote_state == LM_ST_UNLOCKED ||
 	    gl->gl_state != LM_ST_EXCLUSIVE) {
 		spin_unlock(&gl->gl_spin);
@@ -576,7 +567,9 @@ static int rq_demote(struct gfs2_glock *gl)
 		spin_unlock(&gl->gl_spin);
 		gfs2_glock_xmote_th(gl, NULL);
 	}
+
 	spin_lock(&gl->gl_spin);
+	clear_bit(GLF_DEMOTE_IN_PROGRESS, &gl->gl_flags);
 
 	return 0;
 }
@@ -598,23 +591,18 @@ static void run_queue(struct gfs2_glock *gl)
 		if (!list_empty(&gl->gl_waiters1)) {
 			gh = list_entry(gl->gl_waiters1.next,
 					struct gfs2_holder, gh_list);
-
-			if (test_bit(HIF_MUTEX, &gh->gh_iflags))
-				blocked = rq_mutex(gh);
-			else
-				gfs2_assert_warn(gl->gl_sbd, 0);
-
+			blocked = rq_mutex(gh);
 		} else if (test_bit(GLF_DEMOTE, &gl->gl_flags)) {
 			blocked = rq_demote(gl);
+			if (gl->gl_waiters2 && !blocked) {
+				set_bit(GLF_DEMOTE, &gl->gl_flags);
+				gl->gl_demote_state = LM_ST_UNLOCKED;
+			}
+			gl->gl_waiters2 = 0;
 		} else if (!list_empty(&gl->gl_waiters3)) {
 			gh = list_entry(gl->gl_waiters3.next,
 					struct gfs2_holder, gh_list);
-
-			if (test_bit(HIF_PROMOTE, &gh->gh_iflags))
-				blocked = rq_promote(gh);
-			else
-				gfs2_assert_warn(gl->gl_sbd, 0);
-
+			blocked = rq_promote(gh);
 		} else
 			break;
 
@@ -632,27 +620,21 @@ static void run_queue(struct gfs2_glock *gl)
 
 static void gfs2_glmutex_lock(struct gfs2_glock *gl)
 {
-	struct gfs2_holder gh;
-
-	gfs2_holder_init(gl, 0, 0, &gh);
-	set_bit(HIF_MUTEX, &gh.gh_iflags);
-	if (test_and_set_bit(HIF_WAIT, &gh.gh_iflags))
-		BUG();
-
 	spin_lock(&gl->gl_spin);
 	if (test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
+		struct gfs2_holder gh;
+
+		gfs2_holder_init(gl, 0, 0, &gh);
+		set_bit(HIF_WAIT, &gh.gh_iflags);
 		list_add_tail(&gh.gh_list, &gl->gl_waiters1);
+		spin_unlock(&gl->gl_spin);
+		wait_on_holder(&gh);
+		gfs2_holder_uninit(&gh);
 	} else {
 		gl->gl_owner_pid = current->pid;
 		gl->gl_ip = (unsigned long)__builtin_return_address(0);
-		clear_bit(HIF_WAIT, &gh.gh_iflags);
-		smp_mb();
-		wake_up_bit(&gh.gh_iflags, HIF_WAIT);
+		spin_unlock(&gl->gl_spin);
 	}
-	spin_unlock(&gl->gl_spin);
-
-	wait_on_holder(&gh);
-	gfs2_holder_uninit(&gh);
 }
 
 /**
@@ -691,7 +673,6 @@ static void gfs2_glmutex_unlock(struct gfs2_glock *gl)
 	gl->gl_owner_pid = 0;
 	gl->gl_ip = 0;
 	run_queue(gl);
-	BUG_ON(!spin_is_locked(&gl->gl_spin));
 	spin_unlock(&gl->gl_spin);
 }
 
@@ -722,7 +703,10 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
 		}
 	} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
 			gl->gl_demote_state != state) {
-		gl->gl_demote_state = LM_ST_UNLOCKED;
+		if (test_bit(GLF_DEMOTE_IN_PROGRESS,  &gl->gl_flags)) 
+			gl->gl_waiters2 = 1;
+		else 
+			gl->gl_demote_state = LM_ST_UNLOCKED;
 	}
 	spin_unlock(&gl->gl_spin);
 }
@@ -943,8 +927,8 @@ static void gfs2_glock_drop_th(struct gfs2_glock *gl)
 	const struct gfs2_glock_operations *glops = gl->gl_ops;
 	unsigned int ret;
 
-	if (glops->go_drop_th)
-		glops->go_drop_th(gl);
+	if (glops->go_xmote_th)
+		glops->go_xmote_th(gl);
 
 	gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
 	gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
@@ -1156,8 +1140,6 @@ restart:
 		return -EIO;
 	}
 
-	set_bit(HIF_PROMOTE, &gh->gh_iflags);
-
 	spin_lock(&gl->gl_spin);
 	add_to_queue(gh);
 	run_queue(gl);
@@ -1248,12 +1230,11 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
 	list_del_init(&gh->gh_list);
 
 	if (list_empty(&gl->gl_holders)) {
-		spin_unlock(&gl->gl_spin);
-
-		if (glops->go_unlock)
+		if (glops->go_unlock) {
+			spin_unlock(&gl->gl_spin);
 			glops->go_unlock(gh);
-
-		spin_lock(&gl->gl_spin);
+			spin_lock(&gl->gl_spin);
+		}
 		gl->gl_stamp = jiffies;
 	}
 
@@ -1910,8 +1891,6 @@ static int dump_glock(struct glock_iter *gi, struct gfs2_glock *gl)
 	print_dbg(gi, "  req_bh = %s\n", (gl->gl_req_bh) ? "yes" : "no");
 	print_dbg(gi, "  lvb_count = %d\n", atomic_read(&gl->gl_lvb_count));
 	print_dbg(gi, "  object = %s\n", (gl->gl_object) ? "yes" : "no");
-	print_dbg(gi, "  le = %s\n",
-		   (list_empty(&gl->gl_le.le_list)) ? "no" : "yes");
 	print_dbg(gi, "  reclaim = %s\n",
 		   (list_empty(&gl->gl_reclaim)) ? "no" : "yes");
 	if (gl->gl_aspace)
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 4670dcb2a877..c663b7a0f410 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -56,7 +56,7 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl)
 		bd = list_entry(head->next, struct gfs2_bufdata,
 				bd_ail_gl_list);
 		bh = bd->bd_bh;
-		gfs2_remove_from_ail(NULL, bd);
+		gfs2_remove_from_ail(bd);
 		bd->bd_bh = NULL;
 		bh->b_private = NULL;
 		bd->bd_blkno = bh->b_blocknr;
@@ -86,15 +86,10 @@ static void gfs2_pte_inval(struct gfs2_glock *gl)
 	if (!ip || !S_ISREG(inode->i_mode))
 		return;
 
-	if (!test_bit(GIF_PAGED, &ip->i_flags))
-		return;
-
 	unmap_shared_mapping_range(inode->i_mapping, 0, 0);
-
 	if (test_bit(GIF_SW_PAGED, &ip->i_flags))
 		set_bit(GLF_DIRTY, &gl->gl_flags);
 
-	clear_bit(GIF_SW_PAGED, &ip->i_flags);
 }
 
 /**
@@ -143,44 +138,34 @@ static void meta_go_inval(struct gfs2_glock *gl, int flags)
 static void inode_go_sync(struct gfs2_glock *gl)
 {
 	struct gfs2_inode *ip = gl->gl_object;
+	struct address_space *metamapping = gl->gl_aspace->i_mapping;
+	int error;
+
+	if (gl->gl_state != LM_ST_UNLOCKED)
+		gfs2_pte_inval(gl);
+	if (gl->gl_state != LM_ST_EXCLUSIVE)
+		return;
 
 	if (ip && !S_ISREG(ip->i_inode.i_mode))
 		ip = NULL;
 
 	if (test_bit(GLF_DIRTY, &gl->gl_flags)) {
-		if (ip && !gfs2_is_jdata(ip))
-			filemap_fdatawrite(ip->i_inode.i_mapping);
 		gfs2_log_flush(gl->gl_sbd, gl);
-		if (ip && gfs2_is_jdata(ip))
-			filemap_fdatawrite(ip->i_inode.i_mapping);
-		gfs2_meta_sync(gl);
+		filemap_fdatawrite(metamapping);
 		if (ip) {
 			struct address_space *mapping = ip->i_inode.i_mapping;
-			int error = filemap_fdatawait(mapping);
+			filemap_fdatawrite(mapping);
+			error = filemap_fdatawait(mapping);
 			mapping_set_error(mapping, error);
 		}
+		error = filemap_fdatawait(metamapping);
+		mapping_set_error(metamapping, error);
 		clear_bit(GLF_DIRTY, &gl->gl_flags);
 		gfs2_ail_empty_gl(gl);
 	}
 }
 
 /**
- * inode_go_xmote_th - promote/demote a glock
- * @gl: the glock
- * @state: the requested state
- * @flags:
- *
- */
-
-static void inode_go_xmote_th(struct gfs2_glock *gl)
-{
-	if (gl->gl_state != LM_ST_UNLOCKED)
-		gfs2_pte_inval(gl);
-	if (gl->gl_state == LM_ST_EXCLUSIVE)
-		inode_go_sync(gl);
-}
-
-/**
  * inode_go_xmote_bh - After promoting/demoting a glock
  * @gl: the glock
  *
@@ -201,22 +186,6 @@ static void inode_go_xmote_bh(struct gfs2_glock *gl)
 }
 
 /**
- * inode_go_drop_th - unlock a glock
- * @gl: the glock
- *
- * Invoked from rq_demote().
- * Another node needs the lock in EXCLUSIVE mode, or lock (unused for too long)
- * is being purged from our node's glock cache; we're dropping lock.
- */
-
-static void inode_go_drop_th(struct gfs2_glock *gl)
-{
-	gfs2_pte_inval(gl);
-	if (gl->gl_state == LM_ST_EXCLUSIVE)
-		inode_go_sync(gl);
-}
-
-/**
  * inode_go_inval - prepare a inode glock to be released
  * @gl: the glock
  * @flags:
@@ -234,10 +203,8 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
 			set_bit(GIF_INVALID, &ip->i_flags);
 	}
 
-	if (ip && S_ISREG(ip->i_inode.i_mode)) {
+	if (ip && S_ISREG(ip->i_inode.i_mode))
 		truncate_inode_pages(ip->i_inode.i_mapping, 0);
-		clear_bit(GIF_PAGED, &ip->i_flags);
-	}
 }
 
 /**
@@ -294,23 +261,6 @@ static int inode_go_lock(struct gfs2_holder *gh)
 }
 
 /**
- * inode_go_unlock - operation done before an inode lock is unlocked by a
- *		     process
- * @gl: the glock
- * @flags:
- *
- */
-
-static void inode_go_unlock(struct gfs2_holder *gh)
-{
-	struct gfs2_glock *gl = gh->gh_gl;
-	struct gfs2_inode *ip = gl->gl_object;
-
-	if (ip)
-		gfs2_meta_cache_flush(ip);
-}
-
-/**
  * rgrp_go_demote_ok - Check to see if it's ok to unlock a RG's glock
  * @gl: the glock
  *
@@ -350,14 +300,14 @@ static void rgrp_go_unlock(struct gfs2_holder *gh)
 }
 
 /**
- * trans_go_xmote_th - promote/demote the transaction glock
+ * trans_go_sync - promote/demote the transaction glock
  * @gl: the glock
  * @state: the requested state
  * @flags:
  *
  */
 
-static void trans_go_xmote_th(struct gfs2_glock *gl)
+static void trans_go_sync(struct gfs2_glock *gl)
 {
 	struct gfs2_sbd *sdp = gl->gl_sbd;
 
@@ -384,7 +334,6 @@ static void trans_go_xmote_bh(struct gfs2_glock *gl)
 
 	if (gl->gl_state != LM_ST_UNLOCKED &&
 	    test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
-		gfs2_meta_cache_flush(GFS2_I(sdp->sd_jdesc->jd_inode));
 		j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
 
 		error = gfs2_find_jhead(sdp->sd_jdesc, &head);
@@ -402,24 +351,6 @@ static void trans_go_xmote_bh(struct gfs2_glock *gl)
 }
 
 /**
- * trans_go_drop_th - unlock the transaction glock
- * @gl: the glock
- *
- * We want to sync the device even with localcaching.  Remember
- * that localcaching journal replay only marks buffers dirty.
- */
-
-static void trans_go_drop_th(struct gfs2_glock *gl)
-{
-	struct gfs2_sbd *sdp = gl->gl_sbd;
-
-	if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_f