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

1 files changed, 64 insertions, 124 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cc00bd1d1f87..8833a4f264e3 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -392,11 +392,15 @@ static int alloc_dinode(struct gfs2_inode *ip, u32 flags)
 	int error;
 	int dblocks = 1;
 
-	error = gfs2_inplace_reserve(ip, RES_DINODE, flags);
+	error = gfs2_quota_lock_check(ip);
 	if (error)
 		goto out;
 
-	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS, 0);
+	error = gfs2_inplace_reserve(ip, RES_DINODE, flags);
+	if (error)
+		goto out_quota;
+
+	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_STATFS + RES_QUOTA, 0);
 	if (error)
 		goto out_ipreserv;
 
@@ -409,6 +413,8 @@ static int alloc_dinode(struct gfs2_inode *ip, u32 flags)
 
 out_ipreserv:
 	gfs2_inplace_release(ip);
+out_quota:
+	gfs2_quota_unlock(ip);
 out:
 	return error;
 }
@@ -440,59 +446,27 @@ static void gfs2_init_dir(struct buffer_head *dibh,
  */
 
 static void init_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip,
-			const char *symname, struct buffer_head **bhp)
+			const char *symname)
 {
-	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
 	struct gfs2_dinode *di;
 	struct buffer_head *dibh;
-	struct timespec tv = CURRENT_TIME;
 
 	dibh = gfs2_meta_new(ip->i_gl, ip->i_no_addr);
 	gfs2_trans_add_meta(ip->i_gl, dibh);
-	gfs2_metatype_set(dibh, GFS2_METATYPE_DI, GFS2_FORMAT_DI);
-	gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
 	di = (struct gfs2_dinode *)dibh->b_data;
+	gfs2_dinode_out(ip, di);
 
-	di->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
-	di->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
-	di->di_mode = cpu_to_be32(ip->i_inode.i_mode);
-	di->di_uid = cpu_to_be32(i_uid_read(&ip->i_inode));
-	di->di_gid = cpu_to_be32(i_gid_read(&ip->i_inode));
-	di->di_nlink = 0;
-	di->di_size = cpu_to_be64(ip->i_inode.i_size);
-	di->di_blocks = cpu_to_be64(1);
-	di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(tv.tv_sec);
 	di->di_major = cpu_to_be32(MAJOR(ip->i_inode.i_rdev));
 	di->di_minor = cpu_to_be32(MINOR(ip->i_inode.i_rdev));
-	di->di_goal_meta = di->di_goal_data = cpu_to_be64(ip->i_no_addr);
-	di->di_generation = cpu_to_be64(ip->i_generation);
-	di->di_flags = 0;
 	di->__pad1 = 0;
-	di->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) ? GFS2_FORMAT_DE : 0);
-	di->di_height = 0;
 	di->__pad2 = 0;
 	di->__pad3 = 0;
-	di->di_depth = 0;
-	di->di_entries = 0;
 	memset(&di->__pad4, 0, sizeof(di->__pad4));
-	di->di_eattr = 0;
-	di->di_atime_nsec = cpu_to_be32(tv.tv_nsec);
-	di->di_mtime_nsec = cpu_to_be32(tv.tv_nsec);
-	di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec);
 	memset(&di->di_reserved, 0, sizeof(di->di_reserved));
+	gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
 
 	switch(ip->i_inode.i_mode & S_IFMT) {
-	case S_IFREG:
-		if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
-		    gfs2_tune_get(sdp, gt_new_files_jdata))
-			di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
-		break;
 	case S_IFDIR:
-		di->di_flags |= cpu_to_be32(dip->i_diskflags &
-					    GFS2_DIF_INHERIT_JDATA);
-		di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
-		di->di_size = cpu_to_be64(sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode));
-		di->di_entries = cpu_to_be32(2);
 		gfs2_init_dir(dibh, dip);
 		break;
 	case S_IFLNK:
@@ -501,63 +475,17 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip,
 	}
 
 	set_buffer_uptodate(dibh);
-
-	*bhp = dibh;
-}
-
-static int make_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip,
-		       const char *symname, struct buffer_head **bhp)
-{
-	struct inode *inode = &ip->i_inode;
-	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
-	int error;
-
-	error = gfs2_rindex_update(sdp);
-	if (error)
-		return error;
-
-	error = gfs2_quota_lock(dip, inode->i_uid, inode->i_gid);
-	if (error)
-		return error;
-
-	error = gfs2_quota_check(dip, inode->i_uid, inode->i_gid);
-	if (error)
-		goto out_quota;
-
-	error = gfs2_trans_begin(sdp, RES_DINODE + RES_QUOTA, 0);
-	if (error)
-		goto out_quota;
-
-	init_dinode(dip, ip, symname, bhp);
-	gfs2_quota_change(dip, +1, inode->i_uid, inode->i_gid);
-	gfs2_trans_end(sdp);
-
-out_quota:
-	gfs2_quota_unlock(dip);
-	return error;
+	brelse(dibh);
 }
 
 static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
-		       struct gfs2_inode *ip)
+		       struct gfs2_inode *ip, int arq)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
-	int alloc_required;
-	struct buffer_head *dibh;
 	int error;
 
-	error = gfs2_rindex_update(sdp);
-	if (error)
-		return error;
-
-	error = gfs2_quota_lock(dip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
-	if (error)
-		goto fail;
-
-	error = alloc_required = gfs2_diradd_alloc_required(&dip->i_inode, name);
-	if (alloc_required < 0)
-		goto fail_quota_locks;
-	if (alloc_required) {
-		error = gfs2_quota_check(dip, dip->i_inode.i_uid, dip->i_inode.i_gid);
+	if (arq) {
+		error = gfs2_quota_lock_check(dip);
 		if (error)
 			goto fail_quota_locks;
 
@@ -581,26 +509,12 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
 	if (error)
 		goto fail_end_trans;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (error)
-		goto fail_end_trans;
-	set_nlink(&ip->i_inode, S_ISDIR(ip->i_inode.i_mode) ? 2 : 1);
-	gfs2_trans_add_meta(ip->i_gl, dibh);
-	gfs2_dinode_out(ip, dibh->b_data);
-	brelse(dibh);
-	return 0;
-
 fail_end_trans:
 	gfs2_trans_end(sdp);
-
 fail_ipreserv:
-	if (alloc_required)
-		gfs2_inplace_release(dip);
-
+	gfs2_inplace_release(dip);
 fail_quota_locks:
 	gfs2_quota_unlock(dip);
-
-fail:
 	return error;
 }
 
@@ -650,8 +564,8 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
 	struct gfs2_glock *io_gl;
 	int error;
-	struct buffer_head *bh = NULL;
 	u32 aflags = 0;
+	int arq;
 
 	if (!name->len || name->len > GFS2_FNAMESIZE)
 		return -ENAMETOOLONG;
@@ -660,6 +574,10 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	if (error)
 		return error;
 
+	error = gfs2_rindex_update(sdp);
+	if (error)
+		return error;
+
 	error = gfs2_glock_nq_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
 	if (error)
 		goto fail;
@@ -674,22 +592,48 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	if (error)
 		goto fail_gunlock;
 
+	arq = error = gfs2_diradd_alloc_required(dir, name);
+	if (error < 0)
+		goto fail_gunlock;
+
 	inode = new_inode(sdp->sd_vfs);
-	if (!inode) {
-		gfs2_glock_dq_uninit(ghs);
-		return -ENOMEM;
-	}
+	error = -ENOMEM;
+	if (!inode)
+		goto fail_gunlock;
+
 	ip = GFS2_I(inode);
 	error = gfs2_rs_alloc(ip);
 	if (error)
 		goto fail_free_inode;
 
-	set_bit(GIF_INVALID, &ip->i_flags);
 	inode->i_mode = mode;
+	set_nlink(inode, S_ISDIR(mode) ? 2 : 1);
 	inode->i_rdev = dev;
 	inode->i_size = size;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	gfs2_set_inode_blocks(inode, 1);
 	munge_mode_uid_gid(dip, inode);
 	ip->i_goal = dip->i_goal;
+	ip->i_diskflags = 0;
+	ip->i_eattr = 0;
+	ip->i_height = 0;
+	ip->i_depth = 0;
+	ip->i_entries = 0;
+
+	switch(mode & S_IFMT) {
+	case S_IFREG:
+		if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
+		    gfs2_tune_get(sdp, gt_new_files_jdata))
+			ip->i_diskflags |= GFS2_DIF_JDATA;
+		gfs2_set_aops(inode);
+		break;
+	case S_IFDIR:
+		ip->i_diskflags |= (dip->i_diskflags & GFS2_DIF_INHERIT_JDATA);
+		ip->i_diskflags |= GFS2_DIF_JDATA;
+		ip->i_entries = 2;
+		break;
+	}
+	gfs2_set_inode_flags(inode);
 
 	if ((GFS2_I(sdp->sd_root_dir->d_inode) == dip) ||
 	    (dip->i_diskflags & GFS2_DIF_TOPDIR))
@@ -708,10 +652,13 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	if (error)
 		goto fail_free_inode;
 
-	error = make_dinode(dip, ip, symname, &bh);
+	error = gfs2_trans_begin(sdp, RES_DINODE, 0);
 	if (error)
 		goto fail_gunlock2;
 
+	init_dinode(dip, ip, symname);
+	gfs2_trans_end(sdp);
+
 	error = gfs2_glock_get(sdp, ip->i_no_addr, &gfs2_iopen_glops, CREATE, &io_gl);
 	if (error)
 		goto fail_gunlock2;
@@ -725,10 +672,6 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	gfs2_set_iop(inode);
 	insert_inode_hash(inode);
 
-	error = gfs2_inode_refresh(ip);
-	if (error)
-		goto fail_gunlock3;
-
 	error = gfs2_acl_create(dip, inode);
 	if (error)
 		goto fail_gunlock3;
@@ -737,18 +680,13 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	if (error)
 		goto fail_gunlock3;
 
-	error = link_dinode(dip, name, ip);
+	error = link_dinode(dip, name, ip, arq);
 	if (error)
 		goto fail_gunlock3;
 
-	if (bh)
-		brelse(bh);
-
-	gfs2_trans_end(sdp);
-	gfs2_inplace_release(dip);
-	gfs2_quota_unlock(dip);
 	mark_inode_dirty(inode);
-	gfs2_glock_dq_uninit_m(2, ghs);
+	gfs2_glock_dq_uninit(ghs);
+	gfs2_glock_dq_uninit(ghs + 1);
 	d_instantiate(dentry, inode);
 	return 0;
 
@@ -769,12 +707,12 @@ fail_free_inode:
 fail_gunlock:
 	gfs2_glock_dq_uninit(ghs);
 	if (inode && !IS_ERR(inode)) {
+		clear_nlink(inode);
+		mark_inode_dirty(inode);
 		set_bit(GIF_ALLOC_FAILED, &GFS2_I(inode)->i_flags);
 		iput(inode);
 	}
 fail:
-	if (bh)
-		brelse(bh);
 	return error;
 }
 
@@ -1151,7 +1089,9 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
 
 static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
-	return gfs2_create_inode(dir, dentry, S_IFDIR | mode, 0, NULL, 0, 0);
+	struct gfs2_sbd *sdp = GFS2_SB(dir);
+	unsigned dsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
+	return gfs2_create_inode(dir, dentry, S_IFDIR | mode, 0, NULL, dsize, 0);
 }
 
 /**