Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  merge fchmod() and fchmodat() guts, kill ancient broken kludge
  xfs: fix misspelled S_IS...()
  xfs: get rid of open-coded S_ISREG(), etc.
  vfs: document locking requirements for d_move, __d_move and d_materialise_unique
  omfs: fix (mode & S_IFDIR) abuse
  btrfs: S_ISREG(mode) is not mode & S_IFREG...
  ima: fmode_t misspelled as mode_t...
  pci-label.c: size_t misspelled as mode_t
  jffs2: S_ISLNK(mode & S_IFMT) is pointless
  snd_msnd ->mode is fmode_t, not mode_t
  v9fs_iop_get_acl: get rid of unused variable
  vfs: dont chain pipe/anon/socket on superblock s_inodes list
  Documentation: Exporting: update description of d_splice_alias
  fs: add missing unlock in default_llseek()

19 files changed, 119 insertions, 114 deletions

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 4d433d3..f11e43e 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -187,7 +187,7 @@ EXPORT_SYMBOL_GPL(anon_inode_getfd);
  */
 static struct inode *anon_inode_mkinode(void)
 {
-	struct inode *inode = new_inode(anon_inode_mnt->mnt_sb);
+	struct inode *inode = new_inode_pseudo(anon_inode_mnt->mnt_sb);
 
 	if (!inode)
 		return ERR_PTR(-ENOMEM);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e91b097..caa26ab 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4467,7 +4467,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 	inode->i_generation = BTRFS_I(inode)->generation;
 	btrfs_set_inode_space_info(root, inode);
 
-	if (mode & S_IFDIR)
+	if (S_ISDIR(mode))
 		owner = 0;
 	else
 		owner = 1;
@@ -4512,7 +4512,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 
 	btrfs_inherit_iflags(inode, dir);
 
-	if ((mode & S_IFREG)) {
+	if (S_ISREG(mode)) {
 		if (btrfs_test_opt(root, NODATASUM))
 			BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM;
 		if (btrfs_test_opt(root, NODATACOW) ||
diff --git a/fs/dcache.c b/fs/dcache.c
index be18598..b05aac3 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2138,8 +2138,9 @@ static void dentry_unlock_parents_for_move(struct dentry *dentry,
  * @target: new dentry
  *
  * Update the dcache to reflect the move of a file name. Negative
- * dcache entries should not be moved in this way.  Caller hold
- * rename_lock.
+ * dcache entries should not be moved in this way. Caller must hold
+ * rename_lock, the i_mutex of the source and target directories,
+ * and the sb->s_vfs_rename_mutex if they differ. See lock_rename().
  */
 static void __d_move(struct dentry * dentry, struct dentry * target)
 {
@@ -2202,7 +2203,8 @@ static void __d_move(struct dentry * dentry, struct dentry * target)
  * @target: new dentry
  *
  * Update the dcache to reflect the move of a file name. Negative
- * dcache entries should not be moved in this way.
+ * dcache entries should not be moved in this way. See the locking
+ * requirements for __d_move.
  */
 void d_move(struct dentry *dentry, struct dentry *target)
 {
@@ -2320,7 +2322,8 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon)
  * @inode: inode to bind to the dentry, to which aliases may be attached
  *
  * Introduces an dentry into the tree, substituting an extant disconnected
- * root directory alias in its place if there is one
+ * root directory alias in its place if there is one. Caller must hold the
+ * i_mutex of the parent directory.
  */
 struct dentry *d_materialise_unique(struct dentry *dentry, struct inode *inode)
 {
diff --git a/fs/inode.c b/fs/inode.c
index a48fa53..d0c72ff 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -361,9 +361,11 @@ EXPORT_SYMBOL_GPL(inode_sb_list_add);
 
 static inline void inode_sb_list_del(struct inode *inode)
 {
-	spin_lock(&inode_sb_list_lock);
-	list_del_init(&inode->i_sb_list);
-	spin_unlock(&inode_sb_list_lock);
+	if (!list_empty(&inode->i_sb_list)) {
+		spin_lock(&inode_sb_list_lock);
+		list_del_init(&inode->i_sb_list);
+		spin_unlock(&inode_sb_list_lock);
+	}
 }
 
 static unsigned long hash(struct super_block *sb, unsigned long hashval)
@@ -796,6 +798,29 @@ unsigned int get_next_ino(void)
 EXPORT_SYMBOL(get_next_ino);
 
 /**
+ *	new_inode_pseudo 	- obtain an inode
+ *	@sb: superblock
+ *
+ *	Allocates a new inode for given superblock.
+ *	Inode wont be chained in superblock s_inodes list
+ *	This means :
+ *	- fs can't be unmount
+ *	- quotas, fsnotify, writeback can't work
+ */
+struct inode *new_inode_pseudo(struct super_block *sb)
+{
+	struct inode *inode = alloc_inode(sb);
+
+	if (inode) {
+		spin_lock(&inode->i_lock);
+		inode->i_state = 0;
+		spin_unlock(&inode->i_lock);
+		INIT_LIST_HEAD(&inode->i_sb_list);
+	}
+	return inode;
+}
+
+/**
  *	new_inode 	- obtain an inode
  *	@sb: superblock
  *
@@ -813,13 +838,9 @@ struct inode *new_inode(struct super_block *sb)
 
 	spin_lock_prefetch(&inode_sb_list_lock);
 
-	inode = alloc_inode(sb);
-	if (inode) {
-		spin_lock(&inode->i_lock);
-		inode->i_state = 0;
-		spin_unlock(&inode->i_lock);
+	inode = new_inode_pseudo(sb);
+	if (inode)
 		inode_sb_list_add(inode);
-	}
 	return inode;
 }
 EXPORT_SYMBOL(new_inode);
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index eeead33..b81b35d 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -80,7 +80,7 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
 				  ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
 	if (ret) {
 		jffs2_free_raw_inode(ri);
-		if (S_ISLNK(inode->i_mode & S_IFMT))
+		if (S_ISLNK(inode->i_mode))
 			 kfree(mdata);
 		return ret;
 	}
diff --git a/fs/omfs/dir.c b/fs/omfs/dir.c
index 3b8d397..98e5442 100644
--- a/fs/omfs/dir.c
+++ b/fs/omfs/dir.c
@@ -93,7 +93,7 @@ int omfs_make_empty(struct inode *inode, struct super_block *sb)
 
 	memset(bh->b_data, 0, sizeof(struct omfs_inode));
 
-	if (inode->i_mode & S_IFDIR) {
+	if (S_ISDIR(inode->i_mode)) {
 		memset(&bh->b_data[OMFS_DIR_START], 0xff,
 			sbi->s_sys_blocksize - OMFS_DIR_START);
 	} else
diff --git a/fs/open.c b/fs/open.c
index 739b751..f711921 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -446,74 +446,52 @@ out:
 	return error;
 }
 
-SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
+static int chmod_common(struct path *path, umode_t mode)
 {
-	struct inode * inode;
-	struct dentry * dentry;
-	struct file * file;
-	int err = -EBADF;
+	struct inode *inode = path->dentry->d_inode;
 	struct iattr newattrs;
+	int error;
 
-	file = fget(fd);
-	if (!file)
-		goto out;
-
-	dentry = file->f_path.dentry;
-	inode = dentry->d_inode;
-
-	audit_inode(NULL, dentry);
-
-	err = mnt_want_write_file(file);
-	if (err)
-		goto out_putf;
+	error = mnt_want_write(path->mnt);
+	if (error)
+		return error;
 	mutex_lock(&inode->i_mutex);
-	err = security_path_chmod(dentry, file->f_vfsmnt, mode);
-	if (err)
+	error = security_path_chmod(path->dentry, path->mnt, mode);
+	if (error)
 		goto out_unlock;
-	if (mode == (mode_t) -1)
-		mode = inode->i_mode;
 	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
 	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-	err = notify_change(dentry, &newattrs);
+	error = notify_change(path->dentry, &newattrs);
 out_unlock:
 	mutex_unlock(&inode->i_mutex);
-	mnt_drop_write(file->f_path.mnt);
-out_putf:
-	fput(file);
-out:
+	mnt_drop_write(path->mnt);
+	return error;
+}
+
+SYSCALL_DEFINE2(fchmod, unsigned int, fd, mode_t, mode)
+{
+	struct file * file;
+	int err = -EBADF;
+
+	file = fget(fd);
+	if (file) {
+		audit_inode(NULL, file->f_path.dentry);
+		err = chmod_common(&file->f_path, mode);
+		fput(file);
+	}
 	return err;
 }
 
 SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, mode_t, mode)
 {
 	struct path path;
-	struct inode *inode;
 	int error;
-	struct iattr newattrs;
 
 	error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
-	if (error)
-		goto out;
-	inode = path.dentry->d_inode;
-
-	error = mnt_want_write(path.mnt);
-	if (error)
-		goto dput_and_out;
-	mutex_lock(&inode->i_mutex);
-	error = security_path_chmod(path.dentry, path.mnt, mode);
-	if (error)
-		goto out_unlock;
-	if (mode == (mode_t) -1)
-		mode = inode->i_mode;
-	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
-	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-	error = notify_change(path.dentry, &newattrs);
-out_unlock:
-	mutex_unlock(&inode->i_mutex);
-	mnt_drop_write(path.mnt);
-dput_and_out:
-	path_put(&path);
-out:
+	if (!error) {
+		error = chmod_common(&path, mode);
+		path_put(&path);
+	}
 	return error;
 }
 
diff --git a/fs/pipe.c b/fs/pipe.c
index 1b7f9af..0e0be1d 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -948,7 +948,7 @@ static const struct dentry_operations pipefs_dentry_operations = {
 
 static struct inode * get_pipe_inode(void)
 {
-	struct inode *inode = new_inode(pipe_mnt->mnt_sb);
+	struct inode *inode = new_inode_pseudo(pipe_mnt->mnt_sb);
 	struct pipe_inode_info *pipe;
 
 	if (!inode)
diff --git a/fs/read_write.c b/fs/read_write.c
index 5907b49..179f1c3 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -166,8 +166,10 @@ loff_t default_llseek(struct file *file, loff_t offset, int origin)
 			 * long as offset isn't at the end of the file then the
 			 * offset is data.
 			 */
-			if (offset >= inode->i_size)
-				return -ENXIO;
+			if (offset >= inode->i_size) {
+				retval = -ENXIO;
+				goto out;
+			}
 			break;
 		case SEEK_HOLE:
 			/*
@@ -175,8 +177,10 @@ loff_t default_llseek(struct file *file, loff_t offset, int origin)
 			 * as long as offset isn't i_size or larger, return
 			 * i_size.
 			 */
-			if (offset >= inode->i_size)
-				return -ENXIO;
+			if (offset >= inode->i_size) {
+				retval = -ENXIO;
+				goto out;
+			}
 			offset = inode->i_size;
 			break;
 	}
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index acca2c5..f7ce7de 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -265,7 +265,7 @@ xfs_open_by_handle(
 		return PTR_ERR(filp);
 	}
 
-	if (inode->i_mode & S_IFREG) {
+	if (S_ISREG(inode->i_mode)) {
 		filp->f_flags |= O_NOATIME;
 		filp->f_mode |= FMODE_NOCMTIME;
 	}
@@ -850,14 +850,14 @@ xfs_set_diflags(
 		di_flags |= XFS_DIFLAG_NODEFRAG;
 	if (xflags & XFS_XFLAG_FILESTREAM)
 		di_flags |= XFS_DIFLAG_FILESTREAM;
-	if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+	if (S_ISDIR(ip->i_d.di_mode)) {
 		if (xflags & XFS_XFLAG_RTINHERIT)
 			di_flags |= XFS_DIFLAG_RTINHERIT;
 		if (xflags & XFS_XFLAG_NOSYMLINKS)
 			di_flags |= XFS_DIFLAG_NOSYMLINKS;
 		if (xflags & XFS_XFLAG_EXTSZINHERIT)
 			di_flags |= XFS_DIFLAG_EXTSZINHERIT;
-	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
+	} else if (S_ISREG(ip->i_d.di_mode)) {
 		if (xflags & XFS_XFLAG_REALTIME)
 			di_flags |= XFS_DIFLAG_REALTIME;
 		if (xflags & XFS_XFLAG_EXTSIZE)
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index c51a3f9..ab3e5c6 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -414,7 +414,7 @@ xfs_bmap_add_attrfork_local(
 
 	if (ip->i_df.if_bytes <= XFS_IFORK_DSIZE(ip))
 		return 0;
-	if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+	if (S_ISDIR(ip->i_d.di_mode)) {
 		mp = ip->i_mount;
 		memset(&dargs, 0, sizeof(dargs));
 		dargs.dp = ip;
@@ -3344,8 +3344,7 @@ xfs_bmap_local_to_extents(
 	 * We don't want to deal with the case of keeping inode data inline yet.
 	 * So sending the data fork of a regular inode is invalid.
 	 */
-	ASSERT(!((ip->i_d.di_mode & S_IFMT) == S_IFREG &&
-		 whichfork == XFS_DATA_FORK));
+	ASSERT(!(S_ISREG(ip->i_d.di_mode) && whichfork == XFS_DATA_FORK));
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL);
 	flags = 0;
@@ -4052,7 +4051,7 @@ xfs_bmap_one_block(
 
 #ifndef DEBUG
 	if (whichfork == XFS_DATA_FORK) {
-		return ((ip->i_d.di_mode & S_IFMT) == S_IFREG) ?
+		return S_ISREG(ip->i_d.di_mode) ?
 			(ip->i_size == ip->i_mount->m_sb.sb_blocksize) :
 			(ip->i_d.di_size == ip->i_mount->m_sb.sb_blocksize);
 	}
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 4580ce0..a2e2701 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -121,7 +121,7 @@ xfs_dir_isempty(
 {
 	xfs_dir2_sf_hdr_t	*sfp;
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	if (dp->i_d.di_size == 0)	/* might happen during shutdown. */
 		return 1;
 	if (dp->i_d.di_size > XFS_IFORK_DSIZE(dp))
@@ -179,7 +179,7 @@ xfs_dir_init(
 	memset((char *)&args, 0, sizeof(args));
 	args.dp = dp;
 	args.trans = tp;
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	if ((error = xfs_dir_ino_validate(tp->t_mountp, pdp->i_ino)))
 		return error;
 	return xfs_dir2_sf_create(&args, pdp->i_ino);
@@ -202,7 +202,7 @@ xfs_dir_createname(
 	int			rval;
 	int			v;		/* type-checking value */
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum)))
 		return rval;
 	XFS_STATS_INC(xs_dir_create);
@@ -278,7 +278,7 @@ xfs_dir_lookup(
 	int		rval;
 	int		v;		/* type-checking value */
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	XFS_STATS_INC(xs_dir_lookup);
 
 	memset(&args, 0, sizeof(xfs_da_args_t));
@@ -333,7 +333,7 @@ xfs_dir_removename(
 	int		rval;
 	int		v;		/* type-checking value */
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	XFS_STATS_INC(xs_dir_remove);
 
 	memset(&args, 0, sizeof(xfs_da_args_t));
@@ -382,7 +382,7 @@ xfs_readdir(
 	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
 		return XFS_ERROR(EIO);
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 	XFS_STATS_INC(xs_dir_getdents);
 
 	if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL)
@@ -414,7 +414,7 @@ xfs_dir_replace(
 	int		rval;
 	int		v;		/* type-checking value */
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 
 	if ((rval = xfs_dir_ino_validate(tp->t_mountp, inum)))
 		return rval;
@@ -464,7 +464,7 @@ xfs_dir_canenter(
 	if (resblks)
 		return 0;
 
-	ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR);
+	ASSERT(S_ISDIR(dp->i_d.di_mode));
 
 	memset(&args, 0, sizeof(xfs_da_args_t));
 	args.name = name->name;
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 9124425..3ff3d9e 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -344,9 +344,9 @@ _xfs_filestream_update_ag(
 	 * Either ip is a regular file and pip is a directory, or ip is a
 	 * directory and pip is NULL.
 	 */
-	ASSERT(ip && (((ip->i_d.di_mode & S_IFREG) && pip &&
-	               (pip->i_d.di_mode & S_IFDIR)) ||
-	              ((ip->i_d.di_mode & S_IFDIR) && !pip)));
+	ASSERT(ip && ((S_ISREG(ip->i_d.di_mode) && pip &&
+	               S_ISDIR(pip->i_d.di_mode)) ||
+	              (S_ISDIR(ip->i_d.di_mode) && !pip)));
 
 	mp = ip->i_mount;
 	cache = mp->m_filestream;
@@ -537,7 +537,7 @@ xfs_filestream_lookup_ag(
 	xfs_agnumber_t	ag;
 	int		ref;
 
-	if (!(ip->i_d.di_mode & (S_IFREG | S_IFDIR))) {
+	if (!S_ISREG(ip->i_d.di_mode) && !S_ISDIR(ip->i_d.di_mode)) {
 		ASSERT(0);
 		return NULLAGNUMBER;
 	}
@@ -579,9 +579,9 @@ xfs_filestream_associate(
 	xfs_agnumber_t	ag, rotorstep, startag;
 	int		err = 0;
 
-	ASSERT(pip->i_d.di_mode & S_IFDIR);
-	ASSERT(ip->i_d.di_mode & S_IFREG);
-	if (!(pip->i_d.di_mode & S_IFDIR) || !(ip->i_d.di_mode & S_IFREG))
+	ASSERT(S_ISDIR(pip->i_d.di_mode));
+	ASSERT(S_ISREG(ip->i_d.di_mode));
+	if (!S_ISDIR(pip->i_d.di_mode) || !S_ISREG(ip->i_d.di_mode))
 		return -EINVAL;
 
 	mp = pip->i_mount;
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 3cc21dd..2fcca4b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -368,7 +368,7 @@ xfs_iformat(
 			/*
 			 * no local regular files yet
 			 */
-			if (unlikely((be16_to_cpu(dip->di_mode) & S_IFMT) == S_IFREG)) {
+			if (unlikely(S_ISREG(be16_to_cpu(dip->di_mode)))) {
 				xfs_warn(ip->i_mount,
 			"corrupt inode %Lu (local format for regular file).",
 					(unsigned long long) ip->i_ino);
@@ -1040,7 +1040,7 @@ xfs_ialloc(
 
 	if (pip && XFS_INHERIT_GID(pip)) {
 		ip->i_d.di_gid = pip->i_d.di_gid;
-		if ((pip->i_d.di_mode & S_ISGID) && (mode & S_IFMT) == S_IFDIR) {
+		if ((pip->i_d.di_mode & S_ISGID) && S_ISDIR(mode)) {
 			ip->i_d.di_mode |= S_ISGID;
 		}
 	}
@@ -1097,14 +1097,14 @@ xfs_ialloc(
 		if (pip && (pip->i_d.di_flags & XFS_DIFLAG_ANY)) {
 			uint	di_flags = 0;
 
-			if ((mode & S_IFMT) == S_IFDIR) {
+			if (S_ISDIR(mode)) {
 				if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT)
 					di_flags |= XFS_DIFLAG_RTINHERIT;
 				if (pip->i_d.di_flags & XFS_DIFLAG_EXTSZINHERIT) {
 					di_flags |= XFS_DIFLAG_EXTSZINHERIT;
 					ip->i_d.di_extsize = pip->i_d.di_extsize;
 				}
-			} else if ((mode & S_IFMT) == S_IFREG) {
+			} else if (S_ISREG(mode)) {
 				if (pip->i_d.di_flags & XFS_DIFLAG_RTINHERIT)
 					di_flags |= XFS_DIFLAG_REALTIME;
 				if (pip->i_d.di_flags & XFS_DIFLAG_EXTSZINHERIT) {
@@ -1188,7 +1188,7 @@ xfs_isize_check(
 	int			nimaps;
 	xfs_bmbt_irec_t		imaps[2];
 
-	if ((ip->i_d.di_mode & S_IFMT) != S_IFREG)
+	if (!S_ISREG(ip->i_d.di_mode))
 		return;
 
 	if (XFS_IS_REALTIME_INODE(ip))
@@ -1828,7 +1828,7 @@ xfs_ifree(
 	ASSERT(ip->i_d.di_nextents == 0);
 	ASSERT(ip->i_d.di_anextents == 0);
 	ASSERT((ip->i_d.di_size == 0 && ip->i_size == 0) ||
-	       ((ip->i_d.di_mode & S_IFMT) != S_IFREG));
+	       (!S_ISREG(ip->i_d.di_mode)));
 	ASSERT(ip->i_d.di_nblocks == 0);
 
 	/*
@@ -2671,7 +2671,7 @@ xfs_iflush_int(
 			__func__, ip->i_ino, ip, ip->i_d.di_magic);
 		goto corrupt_out;
 	}
-	if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
+	if (S_ISREG(ip->i_d.di_mode)) {
 		if (XFS_TEST_ERROR(
 		    (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) &&
 		    (ip->i_d.di_format != XFS_DINODE_FMT_BTREE),
@@ -2681,7 +2681,7 @@ xfs_iflush_int(
 				__func__, ip->i_ino, ip);
 			goto corrupt_out;
 		}
-	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+	} else if (S_ISDIR(ip->i_d.di_mode)) {
 		if (XFS_TEST_ERROR(
 		    (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS) &&
 		    (ip->i_d.di_format != XFS_DINODE_FMT_BTREE) &&
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index a97644a..2380a4b 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -263,7 +263,7 @@ typedef struct xfs_inode {
 	struct inode		i_vnode;	/* embedded VFS inode */
 } xfs_inode_t;
 
-#define XFS_ISIZE(ip)	(((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
+#define XFS_ISIZE(ip)	S_ISREG((ip)->i_d.di_mode) ? \
 				(ip)->i_size : (ip)->i_d.di_size;
 
 /* Convert from vfs inode to xfs inode */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 8fe4206..052a2c0 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2283,7 +2283,7 @@ xlog_recover_inode_pass2(
 	/* Take the opportunity to reset the flush iteration count */
 	dicp->di_flushiter = 0;
 
-	if (unlikely((dicp->di_mode & S_IFMT) == S_IFREG)) {
+	if (unlikely(S_ISREG(dicp->di_mode))) {
 		if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) &&
 		    (dicp->di_format != XFS_DINODE_FMT_BTREE)) {
 			XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(3)",
@@ -2296,7 +2296,7 @@ xlog_recover_inode_pass2(
 			error = EFSCORRUPTED;
 			goto error;
 		}
-	} else if (unlikely((dicp->di_mode & S_IFMT) == S_IFDIR)) {
+	} else if (unlikely(S_ISDIR(dicp->di_mode))) {
 		if ((dicp->di_format != XFS_DINODE_FMT_EXTENTS) &&
 		    (dicp->di_format != XFS_DINODE_FMT_BTREE) &&
 		    (dicp->di_format != XFS_DINODE_FMT_LOCAL)) {
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 7f25245..092e16a 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1331,7 +1331,7 @@ xfs_mountfs(
 
 	ASSERT(rip != NULL);
 
-	if (unlikely((rip->i_d.di_mode & S_IFMT) != S_IFDIR)) {
+	if (unlikely(!S_ISDIR(rip->i_d.di_mode))) {
 		xfs_warn(mp, "corrupted root inode %llu: not a directory",
 			(unsigned long long)rip->i_ino);
 		xfs_iunlock(rip, XFS_ILOCK_EXCL);
diff --git a/fs/xfs/xfs_rename.c b/fs/xfs/xfs_rename.c
index 77a5989..df78c29 100644
--- a/fs/xfs/xfs_rename.c
+++ b/fs/xfs/xfs_rename.c
@@ -116,7 +116,7 @@ xfs_rename(
 	trace_xfs_rename(src_dp, target_dp, src_name, target_name);
 
 	new_parent = (src_dp != target_dp);
-	src_is_directory = ((src_ip->i_d.di_mode & S_IFMT) == S_IFDIR);
+	src_is_directory = S_ISDIR(src_ip->i_d.di_mode);
 
 	if (src_is_directory) {
 		/*
@@ -226,7 +226,7 @@ xfs_rename(
 		 * target and source are directories and that target can be
 		 * destroyed, or that neither is a directory.
 		 */
-		if ((target_ip->i_d.di_mode & S_IFMT) == S_IFDIR) {
+		if (S_ISDIR(target_ip->i_d.di_mode)) {
 			/*
 			 * Make sure target dir is empty.
 			 */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 88d1214..9322e13 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -121,7 +121,7 @@ xfs_readlink(
 
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 
-	ASSERT((ip->i_d.di_mode & S_IFMT) == S_IFLNK);
+	ASSERT(S_ISLNK(ip->i_d.di_mode));
 	ASSERT(ip->i_d.di_size <= MAXPATHLEN);
 
 	pathlen = ip->i_d.di_size;
@@ -529,7 +529,7 @@ xfs_release(
 	if (ip->i_d.di_nlink == 0)
 		return 0;
 
-	if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
+	if ((S_ISREG(ip->i_d.di_mode) &&
 	     ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
 	       ip->i_delayed_blks > 0)) &&
 	     (ip->i_df.if_flags & XFS_IFEXTENTS))  &&
@@ -610,7 +610,7 @@ xfs_inactive(
 	truncate = ((ip->i_d.di_nlink == 0) &&
 	    ((ip->i_d.di_size != 0) || (ip->i_size != 0) ||
 	     (ip->i_d.di_nextents > 0) || (ip->i_delayed_blks > 0)) &&
-	    ((ip->i_d.di_mode & S_IFMT) == S_IFREG));
+	    S_ISREG(ip->i_d.di_mode));
 
 	mp = ip->i_mount;
 
@@ -621,7 +621,7 @@ xfs_inactive(
 		goto out;
 
 	if (ip->i_d.di_nlink != 0) {
-		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
+		if ((S_ISREG(ip->i_d.di_mode) &&
                      ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
                        ip->i_delayed_blks > 0)) &&
 		      (ip->i_df.if_flags & XFS_IFEXTENTS) &&
@@ -669,7 +669,7 @@ xfs_inactive(
 			xfs_iunlock(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL);
 			return VN_INACTIVE_CACHE;
 		}
-	} else if ((ip->i_d.di_mode & S_IFMT) == S_IFLNK) {
+	} else if (S_ISLNK(ip->i_d.di_mode)) {
 
 		/*
 		 * If we get an error while cleaning up a