Merge ../linus

56 files changed, 561 insertions, 488 deletions

diff --git a/fs/xfs/linux-2.6/mrlock.h b/fs/xfs/linux-2.6/mrlock.h
index 16b44c3c2362..1b262b790d9c 100644
--- a/fs/xfs/linux-2.6/mrlock.h
+++ b/fs/xfs/linux-2.6/mrlock.h
@@ -79,7 +79,7 @@ static inline void mrdemote(mrlock_t *mrp)
  * Debug-only routine, without some platform-specific asm code, we can
  * now only answer requests regarding whether we hold the lock for write
  * (reader state is outside our visibility, we only track writer state).
- * Note: means !ismrlocked would give false positivies, so don't do that.
+ * Note: means !ismrlocked would give false positives, so don't do that.
  */
 static inline int ismrlocked(mrlock_t *mrp, int type)
 {
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c02f7c5b7462..4d191ef39b67 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -372,7 +372,7 @@ static inline int bio_add_buffer(struct bio *bio, struct buffer_head *bh)
  * assumes that all buffers on the page are started at the same time.
  *
  * The fix is two passes across the ioend list - one to start writeback on the
- * bufferheads, and then the second one submit them for I/O.
+ * buffer_heads, and then submit them for I/O on the second pass.
  */
 STATIC void
 xfs_submit_ioend(
@@ -699,7 +699,7 @@ xfs_convert_page(
 
 	/*
 	 * page_dirty is initially a count of buffers on the page before
-	 * EOF and is decrememted as we move each into a cleanable state.
+	 * EOF and is decremented as we move each into a cleanable state.
 	 *
 	 * Derivation:
 	 *
@@ -842,7 +842,7 @@ xfs_cluster_write(
  * page if possible.
  * The bh->b_state's cannot know if any of the blocks or which block for
  * that matter are dirty due to mmap writes, and therefore bh uptodate is
- * only vaild if the page itself isn't completely uptodate.  Some layers
+ * only valid if the page itself isn't completely uptodate.  Some layers
  * may clear the page dirty flag prior to calling write page, under the
  * assumption the entire page will be written out; by not writing out the
  * whole page the page can be reused before all valid dirty data is
@@ -870,12 +870,14 @@ xfs_page_state_convert(
 	pgoff_t                 end_index, last_index, tlast;
 	ssize_t			size, len;
 	int			flags, err, iomap_valid = 0, uptodate = 1;
-	int			page_dirty, count = 0, trylock_flag = 0;
+	int			page_dirty, count = 0;
+	int			trylock = 0;
 	int			all_bh = unmapped;
 
-	/* wait for other IO threads? */
-	if (startio && (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking))
-		trylock_flag |= BMAPI_TRYLOCK;
+	if (startio) {
+		if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
+			trylock |= BMAPI_TRYLOCK;
+	}
 
 	/* Is this page beyond the end of the file? */
 	offset = i_size_read(inode);
@@ -892,7 +894,7 @@ xfs_page_state_convert(
 
 	/*
 	 * page_dirty is initially a count of buffers on the page before
-	 * EOF and is decrememted as we move each into a cleanable state.
+	 * EOF and is decremented as we move each into a cleanable state.
 	 *
 	 * Derivation:
 	 *
@@ -956,15 +958,13 @@ xfs_page_state_convert(
 
 			if (buffer_unwritten(bh)) {
 				type = IOMAP_UNWRITTEN;
-				flags = BMAPI_WRITE|BMAPI_IGNSTATE;
+				flags = BMAPI_WRITE | BMAPI_IGNSTATE;
 			} else if (buffer_delay(bh)) {
 				type = IOMAP_DELAY;
-				flags = BMAPI_ALLOCATE;
-				if (!startio)
-					flags |= trylock_flag;
+				flags = BMAPI_ALLOCATE | trylock;
 			} else {
 				type = IOMAP_NEW;
-				flags = BMAPI_WRITE|BMAPI_MMAP;
+				flags = BMAPI_WRITE | BMAPI_MMAP;
 			}
 
 			if (!iomap_valid) {
@@ -1223,10 +1223,9 @@ free_buffers:
 }
 
 STATIC int
-__xfs_get_block(
+__xfs_get_blocks(
 	struct inode		*inode,
 	sector_t		iblock,
-	unsigned long		blocks,
 	struct buffer_head	*bh_result,
 	int			create,
 	int			direct,
@@ -1236,22 +1235,17 @@ __xfs_get_block(
 	xfs_iomap_t		iomap;
 	xfs_off_t		offset;
 	ssize_t			size;
-	int			retpbbm = 1;
+	int			niomap = 1;
 	int			error;
 
 	offset = (xfs_off_t)iblock << inode->i_blkbits;
-	if (blocks)
-		size = (ssize_t) min_t(xfs_off_t, LONG_MAX,
-					(xfs_off_t)blocks << inode->i_blkbits);
-	else
-		size = 1 << inode->i_blkbits;
-
+	ASSERT(bh_result->b_size >= (1 << inode->i_blkbits));
+	size = bh_result->b_size;
 	VOP_BMAP(vp, offset, size,
-		create ? flags : BMAPI_READ, &iomap, &retpbbm, error);
+		create ? flags : BMAPI_READ, &iomap, &niomap, error);
 	if (error)
 		return -error;
-
-	if (retpbbm == 0)
+	if (niomap == 0)
 		return 0;
 
 	if (iomap.iomap_bn != IOMAP_DADDR_NULL) {
@@ -1271,12 +1265,16 @@ __xfs_get_block(
 		}
 	}
 
-	/* If this is a realtime file, data might be on a new device */
+	/*
+	 * If this is a realtime file, data may be on a different device.
+	 * to that pointed to from the buffer_head b_bdev currently.
+	 */
 	bh_result->b_bdev = iomap.iomap_target->bt_bdev;
 
-	/* If we previously allocated a block out beyond eof and
-	 * we are now coming back to use it then we will need to
-	 * flag it as new even if it has a disk address.
+	/*
+	 * If we previously allocated a block out beyond eof and we are
+	 * now coming back to use it then we will need to flag it as new
+	 * even if it has a disk address.
 	 */
 	if (create &&
 	    ((!buffer_mapped(bh_result) && !buffer_uptodate(bh_result)) ||
@@ -1292,26 +1290,24 @@ __xfs_get_block(
 		}
 	}
 
-	if (blocks) {
+	if (direct || size > (1 << inode->i_blkbits)) {
 		ASSERT(iomap.iomap_bsize - iomap.iomap_delta > 0);
 		offset = min_t(xfs_off_t,
-				iomap.iomap_bsize - iomap.iomap_delta,
-				(xfs_off_t)blocks << inode->i_blkbits);
-		bh_result->b_size = (u32) min_t(xfs_off_t, UINT_MAX, offset);
+				iomap.iomap_bsize - iomap.iomap_delta, size);
+		bh_result->b_size = (ssize_t)min_t(xfs_off_t, LONG_MAX, offset);
 	}
 
 	return 0;
 }
 
 int
-xfs_get_block(
+xfs_get_blocks(
 	struct inode		*inode,
 	sector_t		iblock,
 	struct buffer_head	*bh_result,
 	int			create)
 {
-	return __xfs_get_block(inode, iblock,
-				bh_result->b_size >> inode->i_blkbits,
+	return __xfs_get_blocks(inode, iblock,
 				bh_result, create, 0, BMAPI_WRITE);
 }
 
@@ -1322,8 +1318,7 @@ xfs_get_blocks_direct(
 	struct buffer_head	*bh_result,
 	int			create)
 {
-	return __xfs_get_block(inode, iblock,
-				bh_result->b_size >> inode->i_blkbits,
+	return __xfs_get_blocks(inode, iblock,
 				bh_result, create, 1, BMAPI_WRITE|BMAPI_DIRECT);
 }
 
@@ -1339,9 +1334,9 @@ xfs_end_io_direct(
 	/*
 	 * Non-NULL private data means we need to issue a transaction to
 	 * convert a range from unwritten to written extents.  This needs
-	 * to happen from process contect but aio+dio I/O completion
+	 * to happen from process context but aio+dio I/O completion
 	 * happens from irq context so we need to defer it to a workqueue.
-	 * This is not nessecary for synchronous direct I/O, but we do
+	 * This is not necessary for synchronous direct I/O, but we do
 	 * it anyway to keep the code uniform and simpler.
 	 *
 	 * The core direct I/O code might be changed to always call the
@@ -1358,7 +1353,7 @@ xfs_end_io_direct(
 	}
 
 	/*
-	 * blockdev_direct_IO can return an error even afer the I/O
+	 * blockdev_direct_IO can return an error even after the I/O
 	 * completion handler was called.  Thus we need to protect
 	 * against double-freeing.
 	 */
@@ -1405,7 +1400,7 @@ xfs_vm_prepare_write(
 	unsigned int		from,
 	unsigned int		to)
 {
-	return block_prepare_write(page, from, to, xfs_get_block);
+	return block_prepare_write(page, from, to, xfs_get_blocks);
 }
 
 STATIC sector_t
@@ -1422,7 +1417,7 @@ xfs_vm_bmap(
 	VOP_RWLOCK(vp, VRWLOCK_READ);
 	VOP_FLUSH_PAGES(vp, (xfs_off_t)0, -1, 0, FI_REMAPF, error);
 	VOP_RWUNLOCK(vp, VRWLOCK_READ);
-	return generic_block_bmap(mapping, block, xfs_get_block);
+	return generic_block_bmap(mapping, block, xfs_get_blocks);
 }
 
 STATIC int
@@ -1430,7 +1425,7 @@ xfs_vm_readpage(
 	struct file		*unused,
 	struct page		*page)
 {
-	return mpage_readpage(page, xfs_get_block);
+	return mpage_readpage(page, xfs_get_blocks);
 }
 
 STATIC int
@@ -1440,7 +1435,7 @@ xfs_vm_readpages(
 	struct list_head	*pages,
 	unsigned		nr_pages)
 {
-	return mpage_readpages(mapping, pages, nr_pages, xfs_get_block);
+	return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks);
 }
 
 STATIC void
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 795699f121d2..60716543c68b 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -41,6 +41,6 @@ typedef struct xfs_ioend {
 } xfs_ioend_t;
 
 extern struct address_space_operations xfs_address_space_operations;
-extern int xfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
+extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int);
 
 #endif /* __XFS_IOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 9fb0312665ca..26fed0756f01 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -182,7 +182,7 @@ free_address(
 {
 	a_list_t	*aentry;
 
-	aentry = kmalloc(sizeof(a_list_t), GFP_ATOMIC & ~__GFP_HIGH);
+	aentry = kmalloc(sizeof(a_list_t), GFP_NOWAIT);
 	if (likely(aentry)) {
 		spin_lock(&as_lock);
 		aentry->next = as_free_head;
diff --git a/fs/xfs/linux-2.6/xfs_export.h b/fs/xfs/linux-2.6/xfs_export.h
index e5b0559700a4..e794ca4efc76 100644
--- a/fs/xfs/linux-2.6/xfs_export.h
+++ b/fs/xfs/linux-2.6/xfs_export.h
@@ -54,7 +54,7 @@
  * Note, the NFS filehandle also includes an fsid portion which
  * may have an inode number in it.  That number is hardcoded to
  * 32bits and there is no way for XFS to intercept it.  In
- * practice this means when exporting an XFS filesytem with 64bit
+ * practice this means when exporting an XFS filesystem with 64bit
  * inodes you should either export the mountpoint (rather than
  * a subdirectory) or use the "fsid" export option.
  */
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 85997b1205f5..c847416f6d10 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -69,7 +69,6 @@ __xfs_file_read(
 	return rval;
 }
 
-
 STATIC ssize_t
 xfs_file_aio_read(
 	struct kiocb		*iocb,
@@ -90,7 +89,6 @@ xfs_file_aio_read_invis(
 	return __xfs_file_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
 }
 
-
 STATIC inline ssize_t
 __xfs_file_write(
 	struct kiocb	*iocb,
@@ -113,7 +111,6 @@ __xfs_file_write(
 	return rval;
 }
 
-
 STATIC ssize_t
 xfs_file_aio_write(
 	struct kiocb		*iocb,
@@ -134,7 +131,6 @@ xfs_file_aio_write_invis(
 	return __xfs_file_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
 }
 
-
 STATIC inline ssize_t
 __xfs_file_readv(
 	struct file		*file,
@@ -179,7 +175,6 @@ xfs_file_readv_invis(
 	return __xfs_file_readv(file, iov, IO_INVIS, nr_segs, ppos);
 }
 
-
 STATIC inline ssize_t
 __xfs_file_writev(
 	struct file		*file,
@@ -204,7 +199,6 @@ __xfs_file_writev(
 	return rval;
 }
 
-
 STATIC ssize_t
 xfs_file_writev(
 	struct file		*file,
@@ -228,7 +222,7 @@ xfs_file_writev_invis(
 STATIC ssize_t
 xfs_file_sendfile(
 	struct file		*filp,
-	loff_t			*ppos,
+	loff_t			*pos,
 	size_t			count,
 	read_actor_t		actor,
 	void			*target)
@@ -236,10 +230,84 @@ xfs_file_sendfile(
 	vnode_t			*vp = vn_from_inode(filp->f_dentry->d_inode);
 	ssize_t			rval;
 
-	VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, rval);
+	VOP_SENDFILE(vp, filp, pos, 0, count, actor, target, NULL, rval);
+	return rval;
+}
+
+STATIC ssize_t
+xfs_file_sendfile_invis(
+	struct file		*filp,
+	loff_t			*pos,
+	size_t			count,
+	read_actor_t		actor,
+	void			*target)
+{
+	vnode_t			*vp = vn_from_inode(filp->f_dentry->d_inode);
+	ssize_t			rval;
+
+	VOP_SENDFILE(vp, filp, pos, IO_INVIS, count, actor, target, NULL, rval);
+	return rval;
+}
+
+STATIC ssize_t
+xfs_file_splice_read(
+	struct file		*infilp,
+	loff_t			*ppos,
+	struct pipe_inode_info	*pipe,
+	size_t			len,
+	unsigned int		flags)
+{
+	vnode_t			*vp = vn_from_inode(infilp->f_dentry->d_inode);
+	ssize_t			rval;
+
+	VOP_SPLICE_READ(vp, infilp, ppos, pipe, len, flags, 0, NULL, rval);
+	return rval;
+}
+
+STATIC ssize_t
+xfs_file_splice_read_invis(
+	struct file		*infilp,
+	loff_t			*ppos,
+	struct pipe_inode_info	*pipe,
+	size_t			len,
+	unsigned int		flags)
+{
+	vnode_t			*vp = vn_from_inode(infilp->f_dentry->d_inode);
+	ssize_t			rval;
+
+	VOP_SPLICE_READ(vp, infilp, ppos, pipe, len, flags, IO_INVIS, NULL, rval);
 	return rval;
 }
 
+STATIC ssize_t
+xfs_file_splice_write(
+	struct pipe_inode_info	*pipe,
+	struct file		*outfilp,
+	loff_t			*ppos,
+	size_t			len,
+	unsigned int		flags)
+{
+	vnode_t			*vp = vn_from_inode(outfilp->f_dentry->d_inode);
+	ssize_t			rval;
+
+	VOP_SPLICE_WRITE(vp, pipe, outfilp, ppos, len, flags, 0, NULL, rval);
+	return rval;
+}
+
+STATIC ssize_t
+xfs_file_splice_write_invis(
+	struct pipe_inode_info	*pipe,
+	struct file		*outfilp,
+	loff_t			*ppos,
+	size_t			len,
+	unsigned int		flags)
+{
+	vnode_t			*vp = vn_from_inode(outfilp->f_dentry->d_inode);
+	ssize_t			rval;
+
+	VOP_SPLICE_WRITE(vp, pipe, outfilp, ppos, len, flags, IO_INVIS, NULL, rval);
+	return rval;
+}
 
 STATIC int
 xfs_file_open(
@@ -251,13 +319,10 @@ xfs_file_open(
 
 	if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
 		return -EFBIG;
-
-	ASSERT(vp);
 	VOP_OPEN(vp, NULL, error);
 	return -error;
 }
 
-
 STATIC int
 xfs_file_release(
 	struct inode	*inode,
@@ -271,7 +336,6 @@ xfs_file_release(
 	return -error;
 }
 
-
 STATIC int
 xfs_file_fsync(
 	struct file	*filp,
@@ -285,21 +349,11 @@ xfs_file_fsync(
 
 	if (datasync)
 		flags |= FSYNC_DATA;
-
-	ASSERT(vp);
 	VOP_FSYNC(vp, flags, NULL, (xfs_off_t)0, (xfs_off_t)-1, error);
 	return -error;
 }
 
-/*
- * xfs_file_readdir maps to VOP_READDIR().
- * We need to build a uio, cred, ...
- */
-
-#define nextdp(dp)      ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen))
-
 #ifdef CONFIG_XFS_DMAPI
-
 STATIC struct page *
 xfs_vm_nopage(
 	struct vm_area_struct	*area,
@@ -319,10 +373,8 @@ xfs_vm_nopage(
 
 	return filemap_nopage(area, address, type);
 }
-
 #endif /* CONFIG_XFS_DMAPI */
 
-
 STATIC int
 xfs_file_readdir(
 	struct file	*filp,
@@ -330,7 +382,7 @@ xfs_file_readdir(
 	filldir_t	filldir)
 {
 	int		error = 0;
-	vnode_t		*vp;
+	vnode_t		*vp = vn_from_inode(filp->f_dentry->d_inode);
 	uio_t		uio;
 	iovec_t		iov;
 	int		eof = 0;
@@ -340,9 +392,6 @@ xfs_file_readdir(
 	xfs_off_t	start_offset, curr_offset;
 	xfs_dirent_t	*dbp = NULL;
 
-	vp = vn_from_inode(filp->f_dentry->d_inode);
-	ASSERT(vp);
-
 	/* Try fairly hard to get memory */
 	do {
 		if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL)))
@@ -387,7 +436,7 @@ xfs_file_readdir(
 			}
 			size -= dbp->d_reclen;
 			curr_offset = (loff_t)dbp->d_off /* & 0x7fffffff */;
-			dbp = nextdp(dbp);
+			dbp = (xfs_dirent_t *)((char *)dbp + dbp->d_reclen);
 		}
 	}
 done:
@@ -402,7 +451,6 @@ done:
 	return -error;
 }
 
-
 STATIC int
 xfs_file_mmap(
 	struct file	*filp,
@@ -457,11 +505,10 @@ xfs_file_ioctl_invis(
 	unsigned int	cmd,
 	unsigned long	arg)
 {
-	int		error;
 	struct inode	*inode = filp->f_dentry->d_inode;
 	vnode_t		*vp = vn_from_inode(inode);
+	int		error;
 
-	ASSERT(vp);
 	VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error);
 	VMODIFY(vp);
 
@@ -537,6 +584,8 @@ const struct file_operations xfs_file_operations = {
 	.aio_read	= xfs_file_aio_read,
 	.aio_write	= xfs_file_aio_write,
 	.sendfile	= xfs_file_sendfile,
+	.splice_read	= xfs_file_splice_read,
+	.splice_write	= xfs_file_splice_write,
 	.unlocked_ioctl	= xfs_file_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= xfs_file_compat_ioctl,
@@ -558,7 +607,9 @@ const struct file_operations xfs_invis_file_operations = {
 	.writev		= xfs_file_writev_invis,
 	.aio_read	= xfs_file_aio_read_invis,
 	.aio_write	= xfs_file_aio_write_invis,
-	.sendfile	= xfs_file_sendfile,
+	.sendfile	= xfs_file_sendfile_invis,
+	.splice_read	= xfs_file_splice_read_invis,
+	.splice_write	= xfs_file_splice_write_invis,
 	.unlocked_ioctl	= xfs_file_ioctl_invis,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= xfs_file_compat_invis_ioctl,
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index b6321abd9a81..251bfe451a3f 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -72,7 +72,7 @@ xfs_ioctl32_flock(
 	    copy_in_user(&p->l_pid,	&p32->l_pid,	sizeof(u32)) ||
 	    copy_in_user(&p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
 		return -EFAULT;
-	
+
 	return (unsigned long)p;
 }
 
@@ -107,11 +107,15 @@ xfs_ioctl32_bulkstat(
 #endif
 
 STATIC long
-xfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
+xfs_compat_ioctl(
+	int		mode,
+	struct file	*file,
+	unsigned	cmd,
+	unsigned long	arg)
 {
+	struct inode	*inode = file->f_dentry->d_inode;
+	vnode_t		*vp = vn_from_inode(inode);
 	int		error;
-	struct		inode *inode = f->f_dentry->d_inode;
-	vnode_t		*vp = vn_to_inode(inode);
 
 	switch (cmd) {
 	case XFS_IOC_DIOINFO:
@@ -189,7 +193,7 @@ xfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
 		return -ENOIOCTLCMD;
 	}
 
-	VOP_IOCTL(vp, inode, f, mode, cmd, (void __user *)arg, error);
+	VOP_IOCTL(vp, inode, file, mode, cmd, (void __user *)arg, error);
 	VMODIFY(vp);
 
 	return error;
@@ -197,18 +201,18 @@ xfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
 
 long
 xfs_file_compat_ioctl(
-	struct file		*f,
+	struct file		*file,
 	unsigned		cmd,
 	unsigned long		arg)
 {
-	return xfs_compat_ioctl(0, f, cmd, arg);
+	return xfs_compat_ioctl(0, file, cmd, arg);
 }
 
 long
 xfs_file_compat_invis_ioctl(
-	struct file		*f,
+	struct file		*file,
 	unsigned		cmd,
 	unsigned long		arg)
 {
-	return xfs_compat_ioctl(IO_INVIS, f, cmd, arg);
+	return xfs_compat_ioctl(IO_INVIS, file, cmd, arg);
 }
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index af487437bd7e..2e2e275c786f 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -673,8 +673,7 @@ xfs_vn_setattr(
 	if (ia_valid & ATTR_ATIME) {
 		vattr.va_mask |= XFS_AT_ATIME;
 		vattr.va_atime = attr->ia_atime;
-		if (ia_valid & ATTR_ATIME_SET)
-			inode->i_atime = attr->ia_atime;
+		inode->i_atime = attr->ia_atime;
 	}
 	if (ia_valid & ATTR_MTIME) {
 		vattr.va_mask |= XFS_AT_MTIME;
@@ -708,7 +707,7 @@ STATIC void
 xfs_vn_truncate(
 	struct inode	*inode)
 {
-	block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_block);
+	block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_blocks);
 }
 
 STATIC int
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 1fe09f2d6519..e9fe43d74768 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -103,6 +103,7 @@
  */
 #undef  HAVE_REFCACHE	/* reference cache not needed for NFS in 2.6 */
 #define HAVE_SENDFILE	/* sendfile(2) exists in 2.6, but not in 2.4 */
+#define HAVE_SPLICE	/* a splice(2) exists in 2.6, but not in 2.4 */
 #ifdef CONFIG_SMP
 #define HAVE_PERCPU_SB	/* per cpu superblock counters are a 2.6 feature */
 #else
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 0169360475c4..67efe3308980 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -301,36 +301,23 @@ xfs_sendfile(
 	void			*target,
 	cred_t			*credp)
 {
+	xfs_inode_t		*ip = XFS_BHVTOI(bdp);
+	xfs_mount_t		*mp = ip->i_mount;
 	ssize_t			ret;
-	xfs_fsize_t		n;
-	xfs_inode_t		*ip;
-	xfs_mount_t		*mp;
-	vnode_t			*vp;
-
-	ip = XFS_BHVTOI(bdp);
-	vp = BHV_TO_VNODE(bdp);
-	mp = ip->i_mount;
 
 	XFS_STATS_INC(xs_read_calls);
-
-	n = XFS_MAXIOFFSET(mp) - *offset;
-	if ((n <= 0) || (count == 0))
-		return 0;
-
-	if (n < count)
-		count = n;
-
-	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
-	if (DM_EVENT_ENABLED(vp->v_vfsp, ip, DM_EVENT_READ) &&
+	if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
 	    (!(ioflags & IO_INVIS))) {
 		vrwlock_t locktype = VRWLOCK_READ;
 		int error;
 
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp), *offset, count,
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
+				      *offset, count,
 				      FILP_DELAY_FLAG(filp), &locktype);
 		if (error) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
@@ -340,12 +327,98 @@ xfs_sendfile(
 	xfs_rw_enter_trace(XFS_SENDFILE_ENTER, &ip->i_iocore,
 		   (void *)(unsigned long)target, count, *offset, ioflags);
 	ret = generic_file_sendfile(filp, offset, count, actor, target);
+	if (ret > 0)
+		XFS_STATS_ADD(xs_read_bytes, ret);
 
 	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+	return ret;
+}
 
+ssize_t
+xfs_splice_read(
+	bhv_desc_t		*bdp,
+	struct file		*infilp,
+	loff_t			*ppos,
+	struct pipe_inode_info	*pipe,
+	size_t			count,
+	int			flags,
+	int			ioflags,
+	cred_t			*credp)
+{
+	xfs_inode_t		*ip = XFS_BHVTOI(bdp);
+	xfs_mount_t		*mp = ip->i_mount;
+	ssize_t			ret;
+
+	XFS_STATS_INC(xs_read_calls);
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return -EIO;
+
+	xfs_ilock(ip, XFS_IOLOCK_SHARED);
+
+	if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_READ) &&
+	    (!(ioflags & IO_INVIS))) {
+		vrwlock_t locktype = VRWLOCK_READ;
+		int error;
+
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, BHV_TO_VNODE(bdp),
+					*ppos, count,
+					FILP_DELAY_FLAG(infilp), &locktype);
+		if (error) {
+			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+			return -error;
+		}
+	}
+	xfs_rw_enter_trace(XFS_SPLICE_READ_ENTER, &ip->i_iocore,
+			   pipe, count, *ppos, ioflags);
+	ret = generic_file_splice_read(infilp, ppos, pipe, count, flags);
 	if (ret > 0)
 		XFS_STATS_ADD(xs_read_bytes, ret);
 
+	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
+	return ret;
+}
+
+ssize_t
+xfs_splice_write(
+	bhv_desc_t		*bdp,
+	struct pipe_inode_info	*pipe,
+	struct file		*outfilp,
+	loff_t			*ppos,
+	size_t			count,
+	int			flags,
+	int			ioflags,
+	cred_t			*credp)
+{
+	xfs_inode_t		*ip = XFS_BHVTOI(bdp);
+	xfs_mount_t		*mp = ip->i_mount;
+	ssize_t			ret;
+
+	XFS_STATS_INC(xs_write_calls);
+	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+		return -EIO;
+
+	xfs_ilock(ip, XFS_IOLOCK_EXCL);
+
+	if (DM_EVENT_ENABLED(BHV_TO_VNODE(bdp)->v_vfsp, ip, DM_EVENT_WRITE) &&
+	    (!(ioflags & IO_INVIS))) {
+		vrwlock_t locktype = VRWLOCK_WRITE;
+		int error;
+
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, BHV_TO_VNODE(bdp),
+					*ppos, count,
+					FILP_DELAY_FLAG(outfilp), &locktype);
+		if (error) {
+			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+			return -error;
+		}
+	}
+	xfs_rw_enter_trace(XFS_SPLICE_WRITE_ENTER, &ip->i_iocore,
+			   pipe, count, *ppos, ioflags);
+	ret = generic_file_splice_write(pipe, outfilp, ppos, count, flags);
+	if (ret > 0)
+		XFS_STATS_ADD(xs_write_bytes, ret);
+
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 	return ret;
 }
 
@@ -363,7 +436,7 @@ xfs_zero_last_block(
 	xfs_fsize_t	end_size)
 {
 	xfs_fileoff_t	last_fsb;
-	xfs_mount_t	*mp;
+	xfs_mount_t	*mp = io->io_mount;
 	int		nimaps;
 	int		zero_offset;
 	int		zero_len;
@@ -373,8 +446,6 @@ xfs_zero_last_block(
 
 	ASSERT(ismrlocked(io->io_lock, MR_UPDATE) != 0);
 
-	mp = io->io_mount;
-
 	zero_offset = XFS_B_FSB_OFFSET(mp, isize);
 	if (zero_offset == 0) {
 		/*
@@ -405,10 +476,9 @@ xfs_zero_last_block(
 	 * don't deadlock when the buffer cache calls back to us.
 	 */
 	XFS_IUNLOCK(mp, io, XFS_ILOCK_EXCL| XFS_EXTSIZE_RD);
-	loff = XFS_FSB_TO_B(mp, last_fsb);
 
+	loff = XFS_FSB_TO_B(mp, last_fsb);
 	zero_len = mp->m_sb.sb_blocksize - zero_offset;
-
 	error = xfs_iozero(ip, loff + zero_offset, zero_len, end_size);
 
 	XFS_ILOCK(mp, io, XFS_ILOCK_EXCL|XFS_EXTSIZE_RD);
@@ -441,7 +511,7 @@ xfs_zero_eof(
 	xfs_fileoff_t	zero_count_fsb;
 	xfs_fileoff_t	last_fsb;
 	xfs_extlen_t	buf_len_fsb;
-	xfs_mount_t	*mp;
+	xfs_mount_t	*mp = io->io_mount;
 	int		nimaps;
 	int		error = 0;
 	xfs_bmbt_irec_t	imap;
@@ -450,8 +520,6 @@ xfs_zero_eof(
 	ASSERT(ismrlocked(io->io_iolock, MR_UPDATE));
 	ASSERT(offset > isize);
 
-	mp = io->io_mount;
-
 	/*
 	 * First handle zeroing the block on which isize resides.
 	 * We only zero a part of that block so it is handled specially.
@@ -681,7 +749,7 @@ start:
 		eventsent = 1;
 
 		/*
-		 * The iolock was dropped and reaquired in XFS_SEND_DATA
+		 * The iolock was dropped and reacquired in XFS_SEND_DATA
 		 * so we have to recheck the size when appending.
 		 * We will only "goto start;" once, since having sent the
 		 * event prevents another call to XFS_SEND_DATA, which is
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h
index 38864a88d42d..8f4539952350 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.h
+++ b/fs/xfs/linux-2.6/xfs_lrw.h
@@ -60,6 +60,8 @@ struct xfs_iomap;
 #define	XFS_IOMAP_ALLOC_ENTER	25
 #define	XFS_IOMAP_ALLOC_MAP	26
 #define	XFS_IOMAP_UNWRITTEN	27
+#define XFS_SPLICE_READ_ENTER	28
+#define XFS_SPLICE_WRITE_ENTER	29
 extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
 				void *, size_t, loff_t, int);
 extern void xfs_inval_cached_trace(struct xfs_iocore *,
@@ -78,6 +80,7 @@ extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int,
 			struct xfs_iomap *, int *);
 extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
 extern int xfs_bdstrat_cb(struct xfs_buf *);
+extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
 
 extern int xfs_zero_eof(struct vnode *, struct xfs_iocore *, xfs_off_t,
 				xfs_fsize_t, xfs_fsize_t);
@@ -90,7 +93,11 @@ extern ssize_t xfs_write(struct bhv_desc *, struct kiocb *,
 extern ssize_t xfs_sendfile(struct bhv_desc *, struct file *,
 				loff_t *, int, size_t, read_actor_t,
 				void *, struct cred *);
-
-extern int xfs_dev_is_read_only(struct xfs_mount *, char *);
+extern ssize_t xfs_splice_read(struct bhv_desc *, struct file *, loff_t *,
+				struct pipe_inode_info *, size_t, int, int,
+				struct cred *);
+extern ssize_t xfs_splice_write(struct bhv_desc *, struct pipe_inode_info *,
+				struct file *, loff_t *, size_t, int, int,
+				struct cred *);
 
 #endif	/* __XFS_LRW_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 1884300417e3..68f4793e8a11 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -67,7 +67,8 @@ mempool_t *xfs_ioend_pool;
 
 STATIC struct xfs_mount_args *
 xfs_args_allocate(
-	struct super_block	*sb)
+	struct super_block	*sb,
+	int			silent)
 {
 	struct xfs_mount_args	*args;
 
@@ -80,8 +81,8 @@ xfs_args_allocate(
 		args->flags |= XFSMNT_DIRSYNC;
 	if (sb->s_flags & MS_SYNCHRONOUS)
 		args->flags |= XFSMNT_WSYNC;
-
-	/* Default to 32 bit inodes on Linux all the time */
+	if (silent)
+		args->flags |= XFSMNT_QUIET;
 	args->flags |= XFSMNT_32BITINODES;
 
 	return args;
@@ -719,7 +720,7 @@ xfs_fs_remount(
 	char			*options)
 {
 	vfs_t			*vfsp = vfs_from_sb(sb);
-	struct xfs_mount_args	*args = xfs_args_allocate(sb);
+	struct xfs_mount_args	*args = xfs_args_allocate(sb, 0);
 	int			error;
 
 	VFS_PARSEARGS(vfsp, options, args, 1, error);
@@ -825,7 +826,7 @@ xfs_fs_fill_super(
 {
 	vnode_t			*rootvp;
 	struct vfs		*vfsp = vfs_allocate(sb);
-	struct xfs_mount_args	*args = xfs_args_allocate(sb);
+	struct xfs_mount_args	*args = xfs_args_allocate(sb, silent);
 	struct kstatfs		statvfs;
 	int			error, error2;
 
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 8fed356db055..841200c03092 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -92,7 +92,7 @@ typedef enum {
 #define SYNC_FSDATA		0x0020	/* flush fs data (e.g. superblocks) */
 #define SYNC_REFCACHE		0x0040  /* prune some of the nfs ref cache */
 #define SYNC_REMOUNT		0x0080  /* remount readonly, no dummy LRs */
-#define SYNC_QUIESCE		0x0100  /* quiesce fileystem for a snapshot */
+#define SYNC_QUIESCE		0x0100  /* quiesce filesystem for a snapshot */
 
 typedef int	(*vfs_mount_t)(bhv_desc_t *,
 				struct xfs_mount_args *, struct cred *);
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 06f5845e9568..2a8e16c22353 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -173,6 +173,12 @@ typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *,
 typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
 				loff_t *, int, size_t, read_actor_t,
 				void *, struct cred *);
+typedef ssize_t (*vop_splice_read_t)(bhv_desc_t *, struct file *, loff_t *,
+				struct pipe_inode_info *, size_t, int, int,
+				struct cred *);
+typedef ssize_t (*vop_splice_write_t)(bhv_desc_t *, struct pipe_inode_info *,
+				struct file *, loff_t *, size_t, int, int,
+				struct cred *);
 typedef int	(*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
 				int, unsigned int, void __user *);
 typedef int	(*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
@@ -231,6 +237,8 @@ typedef struct vnodeops {
 	vop_read_t		vop_read;
 	vop_write_t		vop_write;
 	vop_sendfile_t		vop_sendfile;
+	vop_splice_read_t	vop_splice_read;
+	vop_splice_write_t	vop_splice_write;
 	vop_ioctl_t		vop_ioctl;
 	vop_getattr_t		vop_getattr;
 	vop_setattr_t		vop_setattr;
@@ -276,6 +284,10 @@ typedef struct vnodeops {
 	rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
 #define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv)		\
 	rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr)
+#define VOP_SPLICE_READ(vp,f,o,pipe,cnt,fl,iofl,cr,rv)			\
+	rv = _VOP_(vop_splice_read, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
+#define VOP_SPLICE_WRITE(vp,f,o,pipe,cnt,fl,iofl,cr,rv)			\
+	rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
 #define VOP_BMAP(vp,of,sz,rw,b,n,rv)					\
 	rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
 #define VOP_OPEN(vp, cr, rv)						\
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index e4e5f05b841b..546f48af882a 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -221,7 +221,7 @@ xfs_qm_dqunpin_wait(
  * as possible.
  *
  * We must not be holding the AIL_LOCK at this point. Calling incore() to
- * search the buffercache can be a time consuming thing, and AIL_LOCK is a
+ * search the buffer cache can be a time consuming thing, and AIL_LOCK is a
  * spinlock.
  */
 STATIC void
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 1fb757ef3f41..7fb5eca9bd50 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -289,7 +289,7 @@ xfs_qm_rele_quotafs_ref(
 
 /*
  * This is called at mount time from xfs_mountfs to initialize the quotainfo
- * structure and start the global quotamanager (xfs_Gqm) if it hasn't done
+ * structure and start the global quota manager (xfs_Gqm) if it hasn't done
  * so already.	Note that the superblock has not been read in yet.
  */
 void
@@ -807,7 +807,7 @@ xfs_qm_dqattach_one(
  * Given a udquot and gdquot, attach a ptr to the group dquot in the
  * udquot as a hint for future lookups. The idea sounds simple, but the
  * execution isn't, because the udquot might have a group dquot attached
- * already and getting rid of that gets us into lock ordering contraints.
+ * already and getting rid of that gets us into lock ordering constraints.
  * The process is complicated more by the fact that the dquots may or may not
  * be locked on entry.
  */
@@ -1094,10 +1094,10 @@ xfs_qm_sync(
 			}
 			/*
 			 * If we can't grab the flush lock then if the caller
-			 * really wanted us to give this our best shot,
+			 * really wanted us to give this our best shot, so
 			 * see if we can give a push to the buffer before we wait
 			 * on the flush lock. At this point, we know that
-			 * eventhough the dquot is being flushed,
+			 * even though the dquot is being flushed,
 			 * it has (new) dirty data.
 			 */
 			xfs_qm_dqflock_pushbuf_wait(dqp);
@@ -1491,7 +1491,7 @@ xfs_qm_reset_dqcounts(
 		/*
 		 * Do a sanity check, and if needed, repair the dqblk. Don't
 		 * output any warnings because it's perfectly possible to
-		 * find unitialized dquot blks. See comment in xfs_qm_dqcheck.
+		 * find uninitialised dquot blks. See comment in xfs_qm_dqcheck.
 		 */
 		(void) xfs_qm_dqcheck(ddq, id+j, type, XFS_QMOPT_DQREPAIR,
 				      "xfs_quotacheck");
@@ -1580,7 +1580,7 @@ xfs_qm_dqiterate(
 
 	error = 0;
 	/*
-	 * This looks racey, but we can't keep an inode lock across a
+	 * This looks racy, but we can't keep an inode lock across a
 	 * trans_reserve. But, this gets called during quotacheck, and that
 	 * happens only at mount time which is single threaded.
 	 */
@@ -1824,7 +1824,7 @@ xfs_qm_dqusage_adjust(
 	 * we have to start from the beginning anyway.
 	 * Once we're done, we'll log all the dquot bufs.
 	 *
-	 * The *QUOTA_ON checks below may look pretty racey, but quotachecks
+	 * The *QUOTA_ON checks below may look pretty racy, but quotachecks
 	 * and quotaoffs don't race. (Quotachecks happen at mount time only).
 	 */
 	if (XFS_IS_UQUOTA_ON(mp)) {
@@ -2624,7 +2624,7 @@ xfs_qm_vop_chown_reserve(
 {
 	int		error;
 	xfs_mount_t	*mp;
-	uint		delblks, blkflags;
+	uint		delblks, blkflags, prjflags = 0;
 	xfs_dquot_t	*unresudq, *unresgdq, *delblksudq, *delblksgdq;
 
 	ASSERT(XFS_ISLOCKED_INODE(ip));
@@ -2650,10 +2650,13 @@ xfs_qm_vop_chown_reserve(
 		}
 	}
 	if (XFS_IS_OQUOTA_ON(ip->i_mount) && gdqp) {
-		if ((XFS_IS_GQUOTA_ON(ip->i_mount) &&
-		     ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) ||
-		    (XFS_IS_PQUOTA_ON(ip->i_mount) &&
-		     ip->i_d.di_projid != be32_to_cpu(gdqp->q_core.d_id))) {
+		if (XFS_IS_PQUOTA_ON(ip->i_mount) &&
+		     ip->i_d.di_projid != be32_to_cpu(gdqp->q_core.d_id))
+			prjflags = XFS_QMOPT_ENOSPC;
+
+		if (prjflags ||
+		    (XFS_IS_GQUOTA_ON(ip->i_mount) &&
+		     ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id))) {
 			delblksgdq = gdqp;
 			if (delblks) {
 				ASSERT(ip->i_gdquot);
@@ -2664,7 +2667,7 @@ xfs_qm_vop_chown_reserve(
 
 	if ((error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount,
 				delblksudq, delblksgdq, ip->i_d.di_nblocks, 1,
-				flags | blkflags)))
+				flags | blkflags | prjflags)))
 		return (error);
 
 	/*
@@ -2681,7 +2684,7 @@ xfs_qm_vop_chown_reserve(
 		ASSERT(unresudq || unresgdq);
 		if ((error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
 				delblksudq, delblksgdq, (xfs_qcnt_t)delblks, 0,
-				flags | blkflags)))
+				flags | blkflags | prjflags)))
 			return (error);
 		xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount,
 				unresudq, unresgdq, -((xfs_qcnt_t)delblks), 0,
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 676884394aae..c55db463bbf2 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -912,7 +912,7 @@ xfs_qm_export_dquot(
 
 	/*
 	 * Internally, we don't reset all the timers when quota enforcement
-	 * gets turned off. No need to confuse the userlevel code,
+	 * gets turned off. No need to confuse the user level code,
 	 * so return zeroes in that case.
 	 */
 	if (! XFS_IS_QUOTA_ENFORCED(mp)) {
diff --git a/fs/xfs/quota/xfs_trans_dquot.c b/fs/xfs/quota/xfs_trans_dquot.c
index 3290975d31f7..9168918db252 100644
--- a/fs/xfs/quota/xfs_trans_dquot.c
+++ b/fs/xfs/quota/xfs_trans_dquot.c
@@ -595,12 +595,19 @@ xfs_trans_unreserve_and_mod_dquots(
 	}
 }
 
+STATIC int
+xfs_quota_error(uint flags)
+{
+	if (flags & XFS_QMOPT_ENOSPC)
+		return ENOSPC;
+	return EDQUOT;
+}
+
 /*
  * This reserves disk blocks and inodes against a dquot.
  * Flags indicate if the dquot is to be locked here and also
  * if the blk reservation is for RT or regular blocks.
  * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check.
- * Returns EDQUOT if quota is exceeded.
  */
 STATIC int
 xfs_trans_dqresv(
@@ -666,19 +673,15 @@ xfs_trans_dqresv(
 			 */
 			if (hardlimit > 0ULL &&
 			     (hardlimit <= nblks + *resbcountp)) {
-				error = EDQUOT;
+				error = xfs_quota_error(flags);
 				goto error_return;
 			}
 
 			if (softlimit > 0ULL &&
 			     (softlimit <= nblks + *resbcountp)) {
-				/*
-				 * If timer or warnings has expired,
-				 * return EDQUOT
-				 */
 				if ((timer != 0 && get_seconds() > timer) ||
 				    (warns != 0 && warns >= warnlimit)) {
-					error = EDQUOT;
+					error = xfs_quota_error(flags);
 					goto error_return;
 				}
 			}
@@ -695,16 +698,12 @@ xfs_trans_dqresv(
 			if (!softlimit)
 				softlimit = q->qi_isoftlimit;
 			if (hardlimit > 0ULL && count >= hardlimit) {
-				error = EDQUOT;
+				error = xfs_quota_error(flags);
 				goto error_return;
 			} else if (softlimit > 0ULL && count >= softlimit) {
-				/*
-				 * If timer or warnings has expired,
-				 * return EDQUOT
-				 */
 				if ((timer != 0 && get_seconds() > timer) ||
 				     (warns != 0 && warns >= warnlimit)) {
-					error = EDQUOT;
+					error = xfs_quota_error(flags);
 					goto error_return;
 				}
 			}
@@ -751,13 +750,14 @@ error_return:
 
 
 /*
- * Given a dquot(s), make disk block and/or inode reservations against them.
+ * Given dquot(s), make disk block and/or inode reservations against them.
  * The fact that this does the reservation against both the usr and
- * grp quotas is important, because this follows a both-or-nothing
+ * grp/prj quotas is important, because this follows a both-or-nothing
  * approach.
  *
  * flags = XFS_QMOPT_DQLOCK indicate if dquot(s) need to be locked.
  *	   XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown.
+ *	   XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT.  Used by pquota.
  *	   XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks
  *	   XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks
  * dquots are unlocked on return, if they were not locked by caller.
@@ -772,25 +772,27 @@ xfs_trans_reserve_quota_bydquots(
 	long		ninos,
 	uint		flags)
 {
-	int		resvd;
+	int		resvd = 0, error;
 
-	if (! XFS_IS_QUOTA_ON(mp))
-		return (0);
+	if (!XFS_IS_QUOTA_ON(mp))
+		return 0;
 
 	if (tp && tp->t_dqinfo == NULL)
 		xfs_trans_alloc_dqinfo(tp);
 
 	ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
-	resvd = 0;
 
 	if (udqp) {
-		if (xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, flags))
-			return (EDQUOT);
+		error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos,
+					(flags & ~XFS_QMOPT_ENOSPC));
+		if (error)
+			return error;
 		resvd = 1;
 	}
 
 	if (gdqp) {
-		if (xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags)) {
+		error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags);
+		if (error) {
 			/*
 			 * can't do it, so backout previous reservation
 			 */
@@ -799,14 +801,14 @@ xfs_trans_reserve_quota_bydquots(
 				xfs_trans_dqresv(tp, mp, udqp,
 						 -nblks, -ninos, flags);
 			}
-			return (EDQUOT);
+			return error;
 		}
 	}
 
 	/*
-	 * Didnt change anything critical, so, no need to log
+	 * Didn't change anything critical, so, no need to log
 	 */
-	return (0);
+	return 0;
 }
 
 
@@ -814,8 +816,6 @@ xfs_trans_reserve_quota_bydquots(
  * Lock the dquot and change the reservation if we can.
  * This doesn't change the actual usage, just the reservation.
  * The inode sent in is locked.
- *
- * Returns 0 on success, EDQUOT or other errors otherwise
  */
 STATIC int
 xfs_trans_reserve_quota_nblks(
@@ -824,20 +824,24 @@ xfs_trans_reserve_quota_nblks(
 	xfs_inode_t	*ip,
 	long		nblks,
 	long		ninos,
-	uint		type)
+	uint		flags)
 {
 	int		error;
 
 	if (!XFS_IS_QUOTA_ON(mp))
-		return (0);
+		return 0;
+	if (XFS_IS_PQUOTA_ON(mp))
+		flags |= XFS_QMOPT_ENOSPC;
 
 	ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
 	ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
 
 	ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
 	ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
-	ASSERT((type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_RTBLKS ||
-	       (type & ~XFS_QMOPT_FORCE_RES) == XFS_TRANS_DQ_RES_BLKS);
+	ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
+				XFS_TRANS_DQ_RES_RTBLKS ||
+	       (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
+				XFS_TRANS_DQ_RES_BLKS);
 
 	/*
 	 * Reserve nblks against these dquots, with trans as the mediator.
@@ -845,8 +849,8 @@ xfs_trans_reserve_quota_nblks(
 	error = xfs_trans_reserve_quota_bydquots(tp, mp,
 						 ip->i_udquot, ip->i_gdquot,
 						 nblks, ninos,
-						 type);
-	return (error);
+						 flags);
+	return error;
 }
 
 /*
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 4ff0f4e41c61..2539af34eb63 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -395,7 +395,7 @@ xfs_acl_allow_set(
  * The access control process to determine the access permission:
  *	if uid == file owner id, use the file owner bits.
  *	if gid == file owner group id, use the file group bits.
- *	scan ACL for a maching user or group, and use matched entry
+ *	scan ACL for a matching user or group, and use matched entry
  *	permission. Use total permissions of all matching group entries,
  *	until all acl entries are exhausted. The final permission produced
  *	by matching acl entry or entries needs to be & with group permission.
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index a96e2ffce0cc..dc2361dd740a 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -179,7 +179,7 @@ typedef struct xfs_perag
 {
 	char		pagf_init;	/* this agf's entry is initialized */
 	char		pagi_init;	/* this agi's entry is initialized */
-	char		pagf_metadata;	/* the agf is prefered to be metadata */
+	char		pagf_metadata;	/* the agf is preferred to be metadata */
 	char		pagi_inodeok;	/* The agi is ok for inodes */
 	__uint8_t	pagf_levels[XFS_BTNUM_AGF];
 					/* # of levels in bno & cnt btree */
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index f4328e1e2a74..64ee07db0d5e 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -511,7 +511,7 @@ STATIC void
 xfs_alloc_trace_busy(
 	char		*name,		/* function tag string */
 	char		*str,		/* additional string */
-	xfs_mount_t	*mp,		/* file system mount poing */
+	xfs_mount_t	*mp,		/* file system mount point */
 	xfs_agnumber_t	agno,		/* allocation group number */
 	xfs_agblock_t	agbno,		/* a.g. relative block number */
 	xfs_extlen_t	len,		/* length of extent */
@@ -1843,7 +1843,7 @@ xfs_alloc_fix_freelist(
 	} else
 		agbp = NULL;
 
-	/* If this is a metadata prefered pag and we are user data
+	/* If this is a metadata preferred pag and we are user data
 	 * then try somewhere else if we are not being asked to
 	 * try harder at this point
 	 */
@@ -2458,7 +2458,7 @@ error0:
 /*
  * AG Busy list management
  * The busy list contains block ranges that have been freed but whose
- * transacations have not yet hit disk.  If any block listed in a busy
+ * transactions have not yet hit disk.  If any block listed in a busy
  * list is reused, the transaction that freed it must be forced to disk
  * before continuing to use the block.
  *
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 3546dea27b7d..2d1f8928b267 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -68,7 +68,7 @@ typedef struct xfs_alloc_arg {
 	xfs_alloctype_t	otype;		/* original allocation type */
 	char		wasdel;		/* set if allocation was prev delayed */
 	char		wasfromfl;	/* set if allocation is from freelist */
-	char		isfl;		/* set if is freelist blocks - !actg */
+	char		isfl;		/* set if is freelist blocks - !acctg */
 	char		userdata;	/* set if this is user data */
 } xfs_alloc_arg_t;
 
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 093fac476bda..b6e1e02bbb28 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -294,7 +294,7 @@ xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
 	xfs_trans_ihold(args.trans, dp);
 
 	/*
-	 * If the attribute list is non-existant or a shortform list,
+	 * If the attribute list is non-existent or a shortform list,
 	 * upgrade it to a single-leaf-block attribute list.
 	 */
 	if ((dp->i_d.di_aformat == XFS_DINODE_FMT_LOCAL) ||
@@ -1584,7 +1584,7 @@ out:
  * Fill in the disk block numbers in the state structure for the buffers
  * that are attached to the state structure.
  * This is done so that we can quickly reattach ourselves to those buffers
- * after some set of transaction commit's has released these buffers.
+ * after some set of transaction commits have released these buffers.
  */
 STATIC int
 xfs_attr_fillstate(xfs_da_state_t *state)
@@ -1631,7 +1631,7 @@ xfs_attr_fillstate(xfs_da_state_t *state)
 /*
  * Reattach the buffers to the state structure based on the disk block
  * numbers stored in the state structure.
- * This is done after some set of transaction commit's has released those
+ * This is done after some set of transaction commits have released those
  * buffers from our grip.
  */
 STATIC int
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 717682747bd2..9462be86aa14 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -524,7 +524,7 @@ xfs_attr_shortform_compare(const void *a, const void *b)
 
 /*
  * Copy out entries of shortform attribute lists for attr_list().
- * Shortform atrtribute lists are not stored in hashval sorted order.
+ * Shortform attribute lists are not stored in hashval sorted order.
  * If the output buffer is not large enough to hold them all, then we
  * we have to calculate each entries' hashvalue and sort them before
  * we can begin returning them to the user.
@@ -1541,7 +1541,7 @@ xfs_attr_leaf_toosmall(xfs_da_state_t *state, int *action)
 	/*
 	 * Check for the degenerate case of the block being empty.
 	 * If the block is empty, we'll simply delete it, no need to
-	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * coalesce it with a sibling block.  We choose (arbitrarily)
 	 * to merge with the forward block unless it is NULL.
 	 */
 	if (count == 0) {
diff --git a/fs/xfs/xfs_behavior.c b/fs/xfs/xfs_behavior.c
index 9880adae3938..f4fe3715a803 100644
--- a/fs/xfs/xfs_behavior.c
+++ b/fs/xfs/xfs_behavior.c
@@ -31,7 +31,7 @@
  * The behavior chain is ordered based on the 'position' number which
  * lives in the first field of the ops vector (higher numbers first).
  *
- * Attemps to insert duplicate ops result in an EINVAL return code.
+ * Attempts to insert duplicate ops result in an EINVAL return code.
  * Otherwise, return 0 to indicate success.
  */
 int
@@ -84,7 +84,7 @@ bhv_insert(bhv_head_t *bhp, bhv_desc_t *bdp)
 
 /*
  * Remove a behavior descriptor from a position in a behavior chain;
- * the postition is guaranteed not to be the first position.
+ * the position is guaranteed not to be the first position.
  * Should only be called by the bhv_remove() macro.
  */
 void
diff --git a/fs/xfs/xfs_behavior.h b/fs/xfs/xfs_behavior.h
index 2cd89bb5ab10..1d8ff103201c 100644
--- a/fs/xfs/xfs_behavior.h
+++ b/fs/xfs/xfs_behavior.h
@@ -39,7 +39,7 @@
  * behaviors is synchronized with operations-in-progress (oip's) so that
  * the oip's always see a consistent view of the chain.
  *
- * The term "interpostion" is used to refer to the act of inserting
+ * The term "interposition" is used to refer to the act of inserting
  * a behavior such that it interposes on (i.e., is inserted in front
  * of) a particular other behavior.  A key example of this is when a
  * system implementing distributed single system image wishes to
@@ -51,7 +51,7 @@
  *
  * Behavior synchronization is logic which is necessary under certain
  * circumstances that there is no conflict between ongoing operations
- * traversing the behavior chain and those dunamically modifying the
+ * traversing the behavior chain and those dynamically modifying the
  * behavior chain.  Because behavior synchronization adds extra overhead
  * to virtual operation invocation, we want to restrict, as much as
  * we can, the requirement for this extra code, to those situations
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 2d702e4a74a3..26939d364bc4 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -3467,113 +3467,6 @@ done:
 	return error;
 }
 
-xfs_bmbt_rec_t *			/* pointer to found extent entry */
-xfs_bmap_do_search_extents(
-	xfs_bmbt_rec_t	*base,		/* base of extent list */
-	xfs_extnum_t	lastx,		/* last extent index used */
-	xfs_extnum_t	nextents,	/* number of file extents */
-	xfs_fileoff_t	bno,		/* block number searched for */
-	int		*eofp,		/* out: end of file found */
-	xfs_extnum_t	*lastxp,	/* out: last extent index */
-	xfs_bmbt_irec_t	*gotp,		/* out: extent entry found */
-	xfs_bmbt_irec_t	*prevp)		/* out: previous extent entry found */
-{
-	xfs_bmbt_rec_t	*ep;		/* extent list entry pointer */
-	xfs_bmbt_irec_t	got;		/* extent list entry, decoded */
-	int		high;		/* high index of binary search */
-	int		low;		/* low index of binary search */
-
-	/*
-	 * Initialize the extent entry structure to catch access to
-	 * uninitialized br_startblock field.
-	 */
-	got.br_startoff = 0xffa5a5a5a5a5a5a5LL;
-	got.br_blockcount = 0xa55a5a5a5a5a5a5aLL;
-	got.br_state = XFS_EXT_INVALID;
-
-#if XFS_BIG_BLKNOS
-	got.br_startblock = 0xffffa5a5a5a5a5a5LL;
-#else
-	got.br_startblock = 0xffffa5a5;
-#endif
-
-	if (lastx != NULLEXTNUM && lastx < nextents)
-		ep = base + lastx;
-	else
-		ep = NULL;
-	prevp->br_startoff = NULLFILEOFF;
-	if (ep && bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep)) &&
-	    bno < got.br_startoff +
-		  (got.br_blockcount = xfs_bmbt_get_blockcount(ep)))
-		*eofp = 0;
-	else if (ep && lastx < nextents - 1 &&
-		 bno >= (got.br_startoff = xfs_bmbt_get_startoff(ep + 1)) &&
-		 bno < got.br_startoff +
-		       (got.br_blockcount = xfs_bmbt_get_blockcount(ep + 1))) {
-		lastx++;
-		ep++;
-		*eofp = 0;
-	} else if (nextents == 0)
-		*eofp = 1;
-	else if (bno == 0 &&
-		 (got.br_startoff = xfs_bmbt_get_startoff(base)) == 0) {
-		ep = base;
-		lastx = 0;
-		got.br_blockcount = xfs_bmbt_get_blockcount(ep);
-		*eofp = 0;
-	} else {
-		low = 0;
-		high = nextents - 1;
-		/* binary search the extents array */
-		while (low <= high) {
-			XFS_STATS_INC(xs_cmp_exlist);
-			lastx = (low + high) >> 1;
-			ep = base + lastx;
-			got.br_startoff = xfs_bmbt_get_startoff(ep);
-			got.br_blockcount = xfs_bmbt_get_blockcount(ep);
-			if (bno < got.br_startoff)
-				high = lastx - 1;
-			else if (bno >= got.br_startoff + got.br_blockcount)
-				low = lastx + 1;
-			else {
-				got.br_startblock = xfs_bmbt_get_startblock(ep);
-				got.br_state = xfs_bmbt_get_state(ep);
-				*eofp = 0;
-				*lastxp = lastx;
-				*gotp = got;
-				return ep;
-			}
-		}
-		if (bno >= got.br_startoff + got.br_blockcount) {
-			lastx++;
-			if (lastx == nextents) {
-				*eofp = 1;
-				got.br_startblock = xfs_bmbt_get_startblock(ep);
-				got.br_state = xfs_bmbt_get_state(ep);
-				*prevp = got;
-				ep = NULL;
-			} else {
-				*eofp = 0;
-				xfs_bmbt_get_all(ep, prevp);
-				ep++;
-				got.br_startoff = xfs_bmbt_get_startoff(ep);
-				got.br_blockcount = xfs_bmbt_get_blockcount(ep);
-			}
-		} else {
-			*eofp = 0;
-			if (ep > base)
-				xfs_bmbt_get_all(ep - 1, prevp);
-		}
-	}
-	if (ep) {
-		got.br_startblock = xfs_bmbt_get_startblock(ep);
-		got.br_state = xfs_bmbt_get_state(ep);
-	}
-	*lastxp = lastx;
-	*gotp = got;
-	return ep;
-}
-
 /*
  * Search the extent records for the entry containing block bno.
  * If bno lies in a hole, point to the next entry.  If bno lies
@@ -4826,18 +4719,17 @@ xfs_bmapi(
 				/*
 				 * Make a transaction-less quota reservation for
 				 * delayed allocation blocks. This number gets
-				 * adjusted later.
-				 * We return EDQUOT if we haven't allocated
-				 * blks already inside this loop;
+				 * adjusted later.  We return if we haven't
+				 * allocated blocks already inside this loop.
 				 */
-				if (XFS_TRANS_RESERVE_QUOTA_NBLKS(
+				if ((error = XFS_TRANS_RESERVE_QUOTA_NBLKS(
 						mp, NULL, ip, (long)alen, 0,
 						rt ? XFS_QMOPT_RES_RTBLKS :
-						     XFS_QMOPT_RES_REGBLKS)) {
+						     XFS_QMOPT_RES_REGBLKS))) {
 					if (n == 0) {
 						*nmap = 0;
 						ASSERT(cur == NULL);
-						return XFS_ERROR(EDQUOT);
+						return error;
 					}
 					break;
 				}
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h
index 011ccaa9a1c0..8e0d73d9ccc4 100644
--- a/fs/xfs/xfs_bmap.h
+++ b/fs/xfs/xfs_bmap.h
@@ -353,23 +353,16 @@ xfs_check_nostate_extents(
 	xfs_extnum_t		num);
 
 /*
- * Call xfs_bmap_do_search_extents() to search for the extent
- * record containing block bno. If in multi-level in-core extent
- * allocation mode, find and extract the target extent buffer,
- * otherwise just use the direct extent list.
+ * Search the extent records for the entry containing block bno.
+ * If bno lies in a hole, point to the next entry.  If bno lies
+ * past eof, *eofp will be set, and *prevp will contain the last
+ * entry (null if none).  Else, *lastxp will be set to the index
+ * of the found entry; *gotp will contain the entry.
  */
 xfs_bmbt_rec_t *
 xfs_bmap_search_multi_extents(struct xfs_ifork *, xfs_fileoff_t, int *,
 			xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
 
-/*
- * Search an extent list for the extent which includes block
- * bno.
- */
-xfs_bmbt_rec_t *xfs_bmap_do_search_extents(xfs_bmbt_rec_t *,
-			xfs_extnum_t, xfs_extnum_t, xfs_fileoff_t, int *,
-			xfs_extnum_t *, xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
-
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_BMAP_H__ */
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 07e2324152b1..5fed15682dda 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -98,12 +98,12 @@ xfs_buf_item_flush_log_debug(
 }
 
 /*
- * This function is called to verify that our caller's have logged
+ * This function is called to verify that our callers have logged
  * all the bytes that they changed.
  *
  * It does this by comparing the original copy of the buffer stored in
  * the buf log item's bli_orig array to the current copy of the buffer
- * and ensuring that all bytes which miscompare are set in the bli_logged
+ * and ensuring that all bytes which mismatch are set in the bli_logged
  * array of the buf log item.
  */
 STATIC void
diff --git a/fs/xfs/xfs_cap.h b/fs/xfs/xfs_cap.h
index 433ec537f9bd..d0035c6e9514 100644
--- a/fs/xfs/xfs_cap.h
+++ b/fs/xfs/xfs_cap.h
@@ -38,7 +38,7 @@ typedef struct xfs_cap_set {
 /*
  * For Linux, we take the bitfields directly from capability.h
  * and no longer attempt to keep this attribute ondisk compatible
- * with IRIX.  Since this attribute is only set on exectuables,
+ * with IRIX.  Since this attribute is only set on executables,
  * it just doesn't make much sense to try.  We do use a different
  * named attribute though, to avoid confusion.
  */
diff --git a/fs/xfs/xfs_clnt.h b/fs/xfs/xfs_clnt.h
index 022fff62085b..5b7eb81453be 100644
--- a/fs/xfs/xfs_clnt.h
+++ b/fs/xfs/xfs_clnt.h
@@ -68,6 +68,7 @@ struct xfs_mount_args {
 						 * enforcement */
 #define XFSMNT_PQUOTAENF	0x00000040	/* IRIX project quota limit
 						 * enforcement */
+#define XFSMNT_QUIET		0x00000080	/* don't report mount errors */
 #define XFSMNT_NOALIGN		0x00000200	/* don't allocate at
 						 * stripe boundaries*/
 #define XFSMNT_RETERR		0x00000400	/* return error to user */
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 4bae3a76c678..8988b9051175 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -840,7 +840,7 @@ xfs_da_node_toosmall(xfs_da_state_t *state, int *action)
 	/*
 	 * Check for the degenerate case of the block being empty.
 	 * If the block is empty, we'll simply delete it, no need to
-	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * coalesce it with a sibling block.  We choose (arbitrarily)
 	 * to merge with the forward block unless it is NULL.
 	 */
 	if (count == 0) {
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index bd5cee6aa51a..972ded595476 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -533,7 +533,7 @@ xfs_dir2_block_getdents(
 
 	/*
 	 * Reached the end of the block.
-	 * Set the offset to a nonexistent block 1 and return.
+	 * Set the offset to a non-existent block 1 and return.
 	 */
 	*eofp = 1;
 
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 08648b18265c..0f5e2f2ce6ec 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -515,7 +515,7 @@ xfs_dir2_leaf_addname(
 			ASSERT(be32_to_cpu(leaf->ents[highstale].address) ==
 			       XFS_DIR2_NULL_DATAPTR);
 			/*
-			 * Copy entries down to copver the stale entry
+			 * Copy entries down to cover the stale entry
 			 * and make room for the new entry.
 			 */
 			if (highstale - index > 0)
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index af556f16a0c7..ac511ab9c52d 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -830,7 +830,7 @@ xfs_dir2_leafn_rebalance(
 		state->inleaf = 1;
 		blk2->index = 0;
 		cmn_err(CE_ALERT,
-			"xfs_dir2_leafn_rebalance: picked the wrong leaf? reverting orignal leaf: "
+			"xfs_dir2_leafn_rebalance: picked the wrong leaf? reverting original leaf: "
 			"blk1->index %d\n",
 			blk1->index);
 	}
diff --git a/fs/xfs/xfs_dir_leaf.c b/fs/xfs/xfs_dir_leaf.c
index ee88751c3be6..6d711869262f 100644
--- a/fs/xfs/xfs_dir_leaf.c
+++ b/fs/xfs/xfs_dir_leaf.c
@@ -1341,7 +1341,7 @@ xfs_dir_leaf_toosmall(xfs_da_state_t *state, int *action)
 	/*
 	 * Check for the degenerate case of the block being empty.
 	 * If the block is empty, we'll simply delete it, no need to
-	 * coalesce it with a sibling block.  We choose (aribtrarily)
+	 * coalesce it with a sibling block.  We choose (arbitrarily)
 	 * to merge with the forward block unless it is NULL.
 	 */
 	if (count == 0) {
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
index 26b8e709a569..bc43163456ef 100644
--- a/fs/xfs/xfs_error.h
+++ b/fs/xfs/xfs_error.h
@@ -186,4 +186,7 @@ extern void xfs_fs_cmn_err(int level, struct xfs_mount *mp, char *fmt, ...);
 #define xfs_fs_repair_cmn_err(level, mp, fmt, args...) \
 	xfs_fs_cmn_err(level, mp, fmt "  Unmount and run xfs_repair.", ## args)
 
+#define xfs_fs_mount_cmn_err(f, fmt, args...) \
+	((f & XFS_MFSI_QUIET)? cmn_err(CE_WARN, "XFS: " fmt, ## args) : (void)0)
+
 #endif	/* __XFS_ERROR_H__ */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 56caa88713ab..dfa3527b20a7 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -477,7 +477,7 @@ xfs_fs_counts(
  *
  * xfs_reserve_blocks is called to set m_resblks
  * in the in-core mount table. The number of unused reserved blocks
- * is kept in m_resbls_avail.
+ * is kept in m_resblks_avail.
  *
  * Reserve the requested number of blocks if available. Otherwise return
  * as many as possible to satisfy the request. The actual number
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 0024892841a3..deddbd03c166 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -136,7 +136,7 @@ xfs_ialloc_ag_alloc(
 	int		ninodes;	/* num inodes per buf */
 	xfs_agino_t	thisino;	/* current inode number, for loop */
 	int		version;	/* inode version number to use */
-	int		isaligned;	/* inode allocation at stripe unit */
+	int		isaligned = 0;	/* inode allocation at stripe unit */
 					/* boundary */
 
 	args.tp = tp;
@@ -152,46 +152,75 @@ xfs_ialloc_ag_alloc(
 		return XFS_ERROR(ENOSPC);
 	args.minlen = args.maxlen = XFS_IALLOC_BLOCKS(args.mp);
 	/*
-	 * Set the alignment for the allocation.
-	 * If stripe alignment is turned on then align at stripe unit
-	 * boundary.
-	 * If the cluster size is smaller than a filesystem block
-	 * then we're doing I/O for inodes in filesystem block size pieces,
-	 * so don't need alignment anyway.
-	 */
-	isaligned = 0;
-	if (args.mp->m_sinoalign) {
-		ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
-		args.alignment = args.mp->m_dalign;
-		isaligned = 1;
-	} else if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
-	    args.mp->m_sb.sb_inoalignmt >=
-	    XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
-		args.alignment = args.mp->m_sb.sb_inoalignmt;
-	else
-		args.alignment = 1;
+	 * First try to allocate inodes contiguous with the last-allocated
+	 * chunk of inodes.  If the filesystem is striped, this will fill
+	 * an entire stripe unit with inodes.
+ 	 */
 	agi = XFS_BUF_TO_AGI(agbp);
-	/*
-	 * Need to figure out where to allocate the inode blocks.
-	 * Ideally they should be spaced out through the a.g.
-	 * For now, just allocate blocks up front.
-	 */
-	args.agbno = be32_to_cpu(agi->agi_root);
-	args.fsbno = XFS_AGB_TO_FSB(args.mp, be32_to_cpu(agi->agi_seqno),
-				    args.agbno);
-	/*
-	 * Allocate a fixed-size extent of inodes.
-	 */
-	args.type = XFS_ALLOCTYPE_NEAR_BNO;
-	args.mod = args.total = args.wasdel = args.isfl = args.userdata =
-		args.minalignslop = 0;
-	args.prod = 1;
-	/*
-	 * Allow space for the inode btree to split.
-	 */
-	args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
-	if ((error = xfs_alloc_vextent(&args)))
-		return error;
+	newino = be32_to_cpu(agi->agi_newino);
+	args.agbno = XFS_AGINO_TO_AGBNO(args.mp, newino) +
+			XFS_IALLOC_BLOCKS(args.mp);
+	if (likely(newino != NULLAGINO &&
+		  (args.agbno < be32_to_cpu(agi->agi_length)))) {
+		args.fsbno = XFS_AGB_TO_FSB(args.mp,
+				be32_to_cpu(agi->agi_seqno), args.agbno);
+		args.type = XFS_ALLOCTYPE_THIS_BNO;
+		args.mod = args.total = args.wasdel = args.isfl =
+			args.userdata = args.minalignslop = 0;
+		args.prod = 1;
+		args.alignment = 1;
+		/*
+		 * Allow space for the inode btree to split.
+		 */
+		args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
+		if ((error = xfs_alloc_vextent(&args)))
+			return error;
+	} else
+		args.fsbno = NULLFSBLOCK;
+
+	if (unlikely(args.fsbno == NULLFSBLOCK)) {
+		/*
+		 * Set the alignment for the allocation.
+		 * If stripe alignment is turned on then align at stripe unit
+		 * boundary.
+		 * If the cluster size is smaller than a filesystem block
+		 * then we're doing I/O for inodes in filesystem block size
+		 * pieces, so don't need alignment anyway.
+		 */
+		isaligned = 0;
+		if (args.mp->m_sinoalign) {
+			ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
+			args.alignment = args.mp->m_dalign;
+			isaligned = 1;
+		} else if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
+			   args.mp->m_sb.sb_inoalignmt >=
+			   XFS_B_TO_FSBT(args.mp,
+			  	XFS_INODE_CLUSTER_SIZE(args.mp)))
+				args.alignment = args.mp->m_sb.sb_inoalignmt;
+		else
+			args.alignment = 1;
+		/*
+		 * Need to figure out where to allocate the inode blocks.
+		 * Ideally they should be spaced out through the a.g.
+		 * For now, just allocate blocks up front.
+		 */
+		args.agbno = be32_to_cpu(agi->agi_root);
+		args.fsbno = XFS_AGB_TO_FSB(args.mp,
+				be32_to_cpu(agi->agi_seqno), args.agbno);
+		/*
+		 * Allocate a fixed-size extent of inodes.
+		 */
+		args.type = XFS_ALLOCTYPE_NEAR_BNO;
+		args.mod = args.total = args.wasdel = args.isfl =
+			args.userdata = args.minalignslop = 0;
+		args.prod = 1;
+		/*
+		 * Allow space for the inode btree to split.
+		 */
+		args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
+		if ((error = xfs_alloc_vextent(&args)))
+			return error;
+	}
 
 	/*
 	 * If stripe alignment is turned on, then try again with cluster
@@ -1023,7 +1052,7 @@ xfs_difree(
 	rec.ir_freecount++;
 
 	/*
-	 * When an inode cluster is free, it becomes elgible for removal
+	 * When an inode cluster is free, it becomes eligible for removal
 	 */
 	if ((mp->m_flags & XFS_MOUNT_IDELETE) &&
 	    (rec.ir_freecount == XFS_IALLOC_INODES(mp))) {
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 3ce35a6f700b..b53854325266 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -421,7 +421,10 @@ finish_inode:
 			ip->i_chash = chlnew;
 			chlnew->chl_ip = ip;
 			chlnew->chl_blkno = ip->i_blkno;
+			if (ch->ch_list)
+				ch->ch_list->chl_prev = chlnew;
 			chlnew->chl_next = ch->ch_list;
+			chlnew->chl_prev = NULL;
 			ch->ch_list = chlnew;
 			chlnew = NULL;
 		}
@@ -509,7 +512,7 @@ retry:
 		} else {
 			/*
 			 * If the inode is not fully constructed due to
-			 * filehandle mistmatches wait for the inode to go
+			 * filehandle mismatches wait for the inode to go
 			 * away and try again.
 			 *
 			 * iget_locked will call __wait_on_freeing_inode
@@ -723,23 +726,15 @@ xfs_iextract(
 		ASSERT(ip->i_cnext == ip && ip->i_cprev == ip);
 		ASSERT(ip->i_chash != NULL);
 		chm=NULL;
-		for (chl = ch->ch_list; chl != NULL; chl = chl->chl_next) {
-			if (chl->chl_blkno == ip->i_blkno) {
-				if (chm == NULL) {
-					/* first item on the list */
-					ch->ch_list = chl->chl_next;
-				} else {
-					chm->chl_next = chl->chl_next;
-				}
-				kmem_zone_free(xfs_chashlist_zone, chl);
-				break;
-			} else {
-				ASSERT(chl->chl_ip != ip);
-				chm = chl;
-			}
-		}
-		ASSERT_ALWAYS(chl != NULL);
-       } else {
+		chl = ip->i_chash;
+		if (chl->chl_prev)
+			chl->chl_prev->chl_next = chl->chl_next;
+		else
+			ch->ch_list = chl->chl_next;
+		if (chl->chl_next)
+			chl->chl_next->chl_prev = chl->chl_prev;
+		kmem_zone_free(xfs_chashlist_zone, chl);
+	} else {
 		/* delete one inode from a non-empty list */
 		iq = ip->i_cnext;
 		iq->i_cprev = ip->i_cprev;
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 88a517fad07b..94b60dd03801 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -160,7 +160,7 @@ xfs_inotobp(
 	xfs_dinode_t	*dip;
 
 	/*
-	 * Call the space managment code to find the location of the
+	 * Call the space management code to find the location of the
 	 * inode on disk.
 	 */
 	imap.im_blkno = 0;
@@ -837,7 +837,7 @@ xfs_dic2xflags(
 
 /*
  * Given a mount structure and an inode number, return a pointer
- * to a newly allocated in-core inode coresponding to the given
+ * to a newly allocated in-core inode corresponding to the given
  * inode number.
  *
  * Initialize the inode's attributes and extent pointers if it
@@ -2723,7 +2723,7 @@ xfs_ipin(
 /*
  * Decrement the pin count of the given inode, and wake up
  * anyone in xfs_iwait_unpin() if the count goes to 0.  The
- * inode must have been previoulsy pinned with a call to xfs_ipin().
+ * inode must have been previously pinned with a call to xfs_ipin().
  */
 void
 xfs_iunpin(
@@ -2732,16 +2732,29 @@ xfs_iunpin(
 	ASSERT(atomic_read(&ip->i_pincount) > 0);
 
 	if (atomic_dec_and_test(&ip->i_pincount)) {
-		vnode_t	*vp = XFS_ITOV_NULL(ip);
+		/*
+		 * If the inode is currently being reclaimed, the
+		 * linux inode _and_ the xfs vnode may have been
+		 * freed so we cannot reference either of them safely.
+		 * Hence we should not try to do anything to them
+		 * if the xfs inode is currently in the reclaim
+		 * path.
+		 *
+		 * However, we still need to issue the unpin wakeup
+		 * call as the inode reclaim may be blocked waiting for
+		 * the inode to become unpinned.
+		 */
+		if (!(ip->i_flags & (XFS_IRECLAIM|XFS_IRECLAIMABLE))) {
+			vnode_t	*vp = XFS_ITOV_NULL(ip);
 
-		/* make sync come back and flush this inode */
-		if (vp) {
-			struct inode	*inode = vn_to_inode(vp);
+			/* make sync come back and flush this inode */
+			if (vp) {
+				struct inode	*inode = vn_to_inode(vp);
 
-			if (!(inode->i_state & I_NEW))
-				mark_inode_dirty_sync(inode);
+				if (!(inode->i_state & I_NEW))
+					mark_inode_dirty_sync(inode);
+			}
 		}
-
 		wake_up(&ip->i_ipin_wait);
 	}
 }
@@ -3690,7 +3703,7 @@ void
 xfs_iext_add(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
 	xfs_extnum_t	idx,		/* index to begin adding exts */
-	int		ext_diff)	/* nubmer of extents to add */
+	int		ext_diff)	/* number of extents to add */
 {
 	int		byte_diff;	/* new bytes being added */
 	int		new_size;	/* size of extents after adding */
@@ -4038,7 +4051,7 @@ xfs_iext_remove_indirect(
 	xfs_extnum_t	ext_diff;	/* extents to remove in current list */
 	xfs_extnum_t	nex1;		/* number of extents before idx */
 	xfs_extnum_t	nex2;		/* extents after idx + count */
-	int		nlists;		/* entries in indirecton array */
+	int		nlists;		/* entries in indirection array */
 	int		page_idx = idx;	/* index in target extent list */
 
 	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
@@ -4291,9 +4304,9 @@ xfs_iext_bno_to_ext(
 	xfs_filblks_t	blockcount = 0;	/* number of blocks in extent */
 	xfs_bmbt_rec_t	*ep = NULL;	/* pointer to target extent */
 	xfs_ext_irec_t	*erp = NULL;	/* indirection array pointer */
-	int		high;		/* upper boundry in search */
+	int		high;		/* upper boundary in search */
 	xfs_extnum_t	idx = 0;	/* index of target extent */
-	int		low;		/* lower boundry in search */
+	int		low;		/* lower boundary in search */
 	xfs_extnum_t	nextents;	/* number of file extents */
 	xfs_fileoff_t	startoff = 0;	/* start offset of extent */
 
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 39ef9c36ea55..3b544db1790b 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -189,6 +189,7 @@ typedef struct xfs_ihash {
  */
 typedef struct xfs_chashlist {
 	struct xfs_chashlist	*chl_next;
+	struct xfs_chashlist	*chl_prev;
 	struct xfs_inode	*chl_ip;
 	xfs_daddr_t		chl_blkno;	/* starting block number of
 						 * the cluster */
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 36aa1fcb90a5..7497a481b2f5 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -580,7 +580,7 @@ xfs_inode_item_unpin_remove(
  * been or is in the process of being flushed, then (ideally) we'd like to
  * see if the inode's buffer is still incore, and if so give it a nudge.
  * We delay doing so until the pushbuf routine, though, to avoid holding
- * the AIL lock across a call to the blackhole which is the buffercache.
+ * the AIL lock across a call to the blackhole which is the buffer cache.
  * Also we don't want to sleep in any device strategy routines, which can happen
  * if we do the subsequent bawrite in here.
  */
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 32247b6bfee7..94068d014f27 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -272,7 +272,7 @@ xfs_bulkstat(
 	size_t			statstruct_size, /* sizeof struct filling */
 	char			__user *ubuffer, /* buffer with inode stats */
 	int			flags,	/* defined in xfs_itable.h */
-	int			*done)	/* 1 if there're more stats to get */
+	int			*done)	/* 1 if there are more stats to get */
 {
 	xfs_agblock_t		agbno=0;/* allocation group block number */
 	xfs_buf_t		*agbp;	/* agi header buffer */
@@ -676,7 +676,7 @@ xfs_bulkstat_single(
 	xfs_mount_t		*mp,	/* mount point for filesystem */
 	xfs_ino_t		*lastinop, /* inode to return */
 	char			__user *buffer, /* buffer with inode stats */
-	int			*done)	/* 1 if there're more stats to get */
+	int			*done)	/* 1 if there are more stats to get */
 {
 	int			count;	/* count value for bulkstat call */
 	int			error;	/* return value */
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
index 047d834ed210..11eb4e1b18c4 100644
--- a/fs/xfs/xfs_itable.h
+++ b/fs/xfs/xfs_itable.h
@@ -60,7 +60,7 @@ xfs_bulkstat(
 	size_t		statstruct_size,/* sizeof struct that we're filling */
 	char		__user *ubuffer,/* buffer with inode stats */
 	int		flags,		/* flag to control access method */
-	int		*done);		/* 1 if there're more stats to get */
+	int		*done);		/* 1 if there are more stats to get */
 
 int
 xfs_bulkstat_single(
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 9176995160ed..32e841d2f26d 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -59,7 +59,7 @@ STATIC xlog_t *  xlog_alloc_log(xfs_mount_t	*mp,
 				int		num_bblks);
 STATIC int	 xlog_space_left(xlog_t *log, int cycle, int bytes);
 STATIC int	 xlog_sync(xlog_t *log, xlog_in_core_t *iclog);
-STATIC void	 xlog_unalloc_log(xlog_t *log);
+STATIC void	 xlog_dealloc_log(xlog_t *log);
 STATIC int	 xlog_write(xfs_mount_t *mp, xfs_log_iovec_t region[],
 			    int nentries, xfs_log_ticket_t tic,
 			    xfs_lsn_t *start_lsn,
@@ -304,7 +304,7 @@ xfs_log_done(xfs_mount_t	*mp,
 	if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) == 0 ||
 	    (flags & XFS_LOG_REL_PERM_RESERV)) {
 		/*
-		 * Release ticket if not permanent reservation or a specifc
+		 * Release ticket if not permanent reservation or a specific
 		 * request has been made to release a permanent reservation.
 		 */
 		xlog_trace_loggrant(log, ticket, "xfs_log_done: (non-permanent)");
@@ -511,7 +511,7 @@ xfs_log_mount(xfs_mount_t	*mp,
 			vfsp->vfs_flag |= VFS_RDONLY;
 		if (error) {
 			cmn_err(CE_WARN, "XFS: log mount/recovery failed: error %d", error);
-			xlog_unalloc_log(mp->m_log);
+			xlog_dealloc_log(mp->m_log);
 			return error;
 		}
 	}
@@ -667,7 +667,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 		 *
 		 * Go through the motions of sync'ing and releasing
 		 * the iclog, even though no I/O will actually happen,
-		 * we need to wait for other log I/O's that may already
+		 * we need to wait for other log I/Os that may already
 		 * be in progress.  Do this as a separate section of
 		 * code so we'll know if we ever get stuck here that
 		 * we're in this odd situation of trying to unmount
@@ -704,7 +704,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 void
 xfs_log_unmount_dealloc(xfs_mount_t *mp)
 {
-	xlog_unalloc_log(mp->m_log);
+	xlog_dealloc_log(mp->m_log);
 }
 
 /*
@@ -1492,7 +1492,7 @@ xlog_sync(xlog_t		*log,
 		ASSERT(XFS_BUF_ADDR(bp) <= log->l_logBBsize-1);
 		ASSERT(XFS_BUF_ADDR(bp) + BTOBB(count) <= log->l_logBBsize);
 
-		/* account for internal log which does't start at block #0 */
+		/* account for internal log which doesn't start at block #0 */
 		XFS_BUF_SET_ADDR(bp, XFS_BUF_ADDR(bp) + log->l_logBBstart);
 		XFS_BUF_WRITE(bp);
 		if ((error = XFS_bwrite(bp))) {
@@ -1506,10 +1506,10 @@ xlog_sync(xlog_t		*log,
 
 
 /*
- * Unallocate a log structure
+ * Deallocate a log structure
  */
 void
-xlog_unalloc_log(xlog_t *log)
+xlog_dealloc_log(xlog_t *log)
 {
 	xlog_in_core_t	*iclog, *next_iclog;
 	xlog_ticket_t	*tic, *next_tic;
@@ -1539,7 +1539,7 @@ xlog_unalloc_log(xlog_t *log)
 	if ((log->l_ticket_cnt != log->l_ticket_tcnt)  &&
 	    !XLOG_FORCED_SHUTDOWN(log)) {
 		xfs_fs_cmn_err(CE_WARN, log->l_mp,
-			"xlog_unalloc_log: (cnt: %d, total: %d)",
+			"xlog_dealloc_log: (cnt: %d, total: %d)",
 			log->l_ticket_cnt, log->l_ticket_tcnt);
 		/* ASSERT(log->l_ticket_cnt == log->l_ticket_tcnt); */
 
@@ -1562,7 +1562,7 @@ xlog_unalloc_log(xlog_t *log)
 #endif
 	log->l_mp->m_log = NULL;
 	kmem_free(log, sizeof(xlog_t));
-}	/* xlog_unalloc_log */
+}	/* xlog_dealloc_log */
 
 /*
  * Update counters atomically now that memcpy is done.
@@ -2829,7 +2829,7 @@ xlog_state_release_iclog(xlog_t		*log,
 
 	/*
 	 * We let the log lock go, so it's possible that we hit a log I/O
-	 * error or someother SHUTDOWN condition that marks the iclog
+	 * error or some other SHUTDOWN condition that marks the iclog
 	 * as XLOG_STATE_IOERROR before the bwrite. However, we know that
 	 * this iclog has consistent data, so we ignore IOERROR
 	 * flags after this point.
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 4b2ac88dbb83..eacb3d4987f2 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -27,7 +27,7 @@
 
 #ifdef __KERNEL__
 /*
- * By comparing each compnent, we don't have to worry about extra
+ * By comparing each component, we don't have to worry about extra
  * endian issues in treating two 32 bit numbers as one 64 bit number
  */
 static inline xfs_lsn_t	_lsn_cmp(xfs_lsn_t lsn1, xfs_lsn_t lsn2)
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index add13f507ed2..1f0016b0b4ec 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -583,7 +583,7 @@ xlog_find_head(
 		 *        x | x ... | x - 1 | x
 		 * Another case that fits this picture would be
 		 *        x | x + 1 | x ... | x
-		 * In this case the head really is somwhere at the end of the
+		 * In this case the head really is somewhere at the end of the
 		 * log, as one of the latest writes at the beginning was
 		 * incomplete.
 		 * One more case is
@@ -2799,7 +2799,7 @@ xlog_recover_do_trans(
 		 * we don't need to worry about the block number being
 		 * truncated in > 1 TB buffers because in user-land,
 		 * we're now n32 or 64-bit so xfs_daddr_t is 64-bits so
-		 * the blkno's will get through the user-mode buffer
+		 * the blknos will get through the user-mode buffer
 		 * cache properly.  The only bad case is o32 kernels
 		 * where xfs_daddr_t is 32-bits but mount will warn us
 		 * off a > 1 TB filesystem before we get here.
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 20e8abc16d18..c0b1c2906880 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -213,7 +213,8 @@ xfs_mount_free(
 STATIC int
 xfs_mount_validate_sb(
 	xfs_mount_t	*mp,
-	xfs_sb_t	*sbp)
+	xfs_sb_t	*sbp,
+	int		flags)
 {
 	/*
 	 * If the log device and data device have the
@@ -223,33 +224,29 @@ xfs_mount_validate_sb(
 	 * a volume filesystem in a non-volume manner.
 	 */
 	if (sbp->sb_magicnum != XFS_SB_MAGIC) {
-		cmn_err(CE_WARN, "XFS: bad magic number");
+		xfs_fs_mount_cmn_err(flags, "bad magic number");
 		return XFS_ERROR(EWRONGFS);
 	}
 
 	if (!XFS_SB_GOOD_VERSION(sbp)) {
-		cmn_err(CE_WARN, "XFS: bad version");
+		xfs_fs_mount_cmn_err(flags, "bad version");
 		return XFS_ERROR(EWRONGFS);
 	}
 
 	if (unlikely(
 	    sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) {
-		cmn_err(CE_WARN,
-	"XFS: filesystem is marked as having an external log; "
-	"specify logdev on the\nmount command line.");
-		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(1)",
-				     XFS_ERRLEVEL_HIGH, mp, sbp);
-		return XFS_ERROR(EFSCORRUPTED);
+		xfs_fs_mount_cmn_err(flags,
+			"filesystem is marked as having an external log; "
+			"specify logdev on the\nmount command line.");
+		return XFS_ERROR(EINVAL);
 	}
 
 	if (unlikely(
 	    sbp->sb_logstart != 0 && mp->m_logdev_targp != mp->m_ddev_targp)) {
-		cmn_err(CE_WARN,
-	"XFS: filesystem is marked as having an internal log; "
-	"don't specify logdev on\nthe mount command line.");
-		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(2)",
-				     XFS_ERRLEVEL_HIGH, mp, sbp);
-		return XFS_ERROR(EFSCORRUPTED);
+		xfs_fs_mount_cmn_err(flags,
+			"filesystem is marked as having an internal log; "
+			"do not specify logdev on\nthe mount command line.");
+		return XFS_ERROR(EINVAL);
 	}
 
 	/*
@@ -273,10 +270,8 @@ xfs_mount_validate_sb(
 	    (sbp->sb_blocklog - sbp->sb_inodelog != sbp->sb_inopblog)	||
 	    (sbp->sb_rextsize * sbp->sb_blocksize > XFS_MAX_RTEXTSIZE)	||
 	    (sbp->sb_rextsize * sbp->sb_blocksize < XFS_MIN_RTEXTSIZE)	||
-	    (sbp->sb_imax_pct > 100 || sbp->sb_imax_pct < 1))) {
-		cmn_err(CE_WARN, "XFS: SB sanity check 1 failed");
-		XFS_CORRUPTION_ERROR("xfs_mount_validate_sb(3)",
-				     XFS_ERRLEVEL_LOW, mp, sbp);
+	    (sbp->sb_imax_pct > 100 /* zero sb_imax_pct is valid */))) {
+		xfs_fs_mount_cmn_err(flags, "SB sanity check 1 failed");
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 
@@ -289,9 +284,7 @@ xfs_mount_validate_sb(
 	     (xfs_drfsbno_t)sbp->sb_agcount * sbp->sb_agblocks ||
 	    sbp->sb_dblocks < (xfs_drfsbno_t)(sbp->sb_agcount - 1) *
 			      sbp->sb_agblocks + XFS_MIN_AG_BLOCKS)) {
-		cmn_err(CE_WARN, "XFS: SB sanity check 2 failed");
-		XFS_ERROR_REPORT("xfs_mount_validate_sb(4)",
-				 XFS_ERRLEVEL_LOW, mp);
+		xfs_fs_mount_cmn_err(flags, "SB sanity check 2 failed");
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 
@@ -307,15 +300,13 @@ xfs_mount_validate_sb(
 	    (sbp->sb_dblocks << (sbp->sb_blocklog - BBSHIFT)) > UINT_MAX ||
 	    (sbp->sb_rblocks << (sbp->sb_blocklog - BBSHIFT)) > UINT_MAX)) {
 #endif
-		cmn_err(CE_WARN,
-	"XFS: File system is too large to be mounted on this system.");
+		xfs_fs_mount_cmn_err(flags,
+			"file system too large to be mounted on this system.");
 		return XFS_ERROR(E2BIG);
 	}
 
 	if (unlikely(sbp->sb_inprogress)) {
-		cmn_err(CE_WARN, "XFS: file system busy");
-		XFS_ERROR_REPORT("xfs_mount_validate_sb(5)",
-				 XFS_ERRLEVEL_LOW, mp);
+		xfs_fs_mount_cmn_err(flags, "file system busy");
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 
@@ -323,8 +314,8 @@ xfs_mount_validate_sb(
 	 * Version 1 directory format has never worked on Linux.
 	 */
 	if (unlikely(!XFS_SB_VERSION_HASDIRV2(sbp))) {
-		cmn_err(CE_WARN,
-	"XFS: Attempted to mount file system using version 1 directory format");
+		xfs_fs_mount_cmn_err(flags,
+			"file system using version 1 directory format");
 		return XFS_ERROR(ENOSYS);
 	}
 
@@ -332,11 +323,11 @@ xfs_mount_validate_sb(
 	 * Until this is fixed only page-sized or smaller data blocks work.
 	 */
 	if (unlikely(sbp->sb_blocksize > PAGE_SIZE)) {
-		cmn_err(CE_WARN,
-		"XFS: Attempted to mount file system with blocksize %d bytes",
+		xfs_fs_mount_cmn_err(flags,
+			"file system with blocksize %d bytes",
 			sbp->sb_blocksize);
-		cmn_err(CE_WARN,
-		"XFS: Only page-sized (%ld) or less blocksizes currently work.",
+		xfs_fs_mount_cmn_err(flags,
+			"only pagesize (%ld) or less will currently work.",
 			PAGE_SIZE);
 		return XFS_ERROR(ENOSYS);
 	}
@@ -393,7 +384,7 @@ xfs_initialize_perag(
 				break;
 			}
 
-			/* This ag is prefered for inodes */
+			/* This ag is preferred for inodes */
 			pag = &mp->m_perag[index];
 			pag->pagi_inodeok = 1;
 			if (index < max_metadata)
@@ -484,7 +475,7 @@ xfs_xlatesb(
  * Does the initial read of the superblock.
  */
 int
-xfs_readsb(xfs_mount_t *mp)
+xfs_readsb(xfs_mount_t *mp, int flags)
 {
 	unsigned int	sector_size;
 	unsigned int	extra_flags;
@@ -506,7 +497,7 @@ xfs_readsb(xfs_mount_t *mp)
 	bp = xfs_buf_read_flags(mp->m_ddev_targp, XFS_SB_DADDR,
 				BTOBB(sector_size), extra_flags);
 	if (!bp || XFS_BUF_ISERROR(bp)) {
-		cmn_err(CE_WARN, "XFS: SB read failed");
+		xfs_fs_mount_cmn_err(flags, "SB read failed");
 		error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
 		goto fail;
 	}
@@ -520,9 +511,9 @@ xfs_readsb(xfs_mount_t *mp)
 	sbp = XFS_BUF_TO_SBP(bp);
 	xfs_xlatesb(XFS_BUF_PTR(bp), &(mp->m_sb), 1, XFS_SB_ALL_BITS);
 
-	error = xfs_mount_validate_sb(mp, &(mp->m_sb));
+	error = xfs_mount_validate_sb(mp, &(mp->m_sb), flags);
 	if (error) {
-		cmn_err(CE_WARN, "XFS: SB validate failed");
+		xfs_fs_mount_cmn_err(flags, "SB validate failed");
 		goto fail;
 	}
 
@@ -530,8 +521,8 @@ xfs_readsb(xfs_mount_t *mp)
 	 * We must be able to do sector-sized and sector-aligned IO.
 	 */
 	if (sector_size > mp->m_sb.sb_sectsize) {
-		cmn_err(CE_WARN,
-			"XFS: device supports only %u byte sectors (not %u)",
+		xfs_fs_mount_cmn_err(flags,
+			"device supports only %u byte sectors (not %u)",
 			sector_size, mp->m_sb.sb_sectsize);
 		error = ENOSYS;
 		goto fail;
@@ -548,7 +539,7 @@ xfs_readsb(xfs_mount_t *mp)
 		bp = xfs_buf_read_flags(mp->m_ddev_targp, XFS_SB_DADDR,
 					BTOBB(sector_size), extra_flags);
 		if (!bp || XFS_BUF_ISERROR(bp)) {
-			cmn_err(CE_WARN, "XFS: SB re-read failed");
+			xfs_fs_mount_cmn_err(flags, "SB re-read failed");
 			error = bp ? XFS_BUF_GETERROR(bp) : ENOMEM;
 			goto fail;
 		}
@@ -678,7 +669,7 @@ xfs_mountfs(
 	int		error = 0;
 
 	if (mp->m_sb_bp == NULL) {
-		if ((error = xfs_readsb(mp))) {
+		if ((error = xfs_readsb(mp, mfsi_flags))) {
 			return error;
 		}
 	}
@@ -1728,7 +1719,7 @@ xfs_mount_log_sbunit(
  * We cannot use the hotcpu_register() function because it does
  * not allow notifier instances. We need a notifier per filesystem
  * as we need to be able to identify the filesystem to balance
- * the counters out. This is acheived by having a notifier block
+ * the counters out. This is achieved by having a notifier block
  * embedded in the xfs_mount_t and doing pointer magic to get the
  * mount pointer from the notifier block address.
  */
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index ebd73960e9db..668ad23fd37c 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -379,7 +379,7 @@ typedef struct xfs_mount {
 #endif
 	int			m_dalign;	/* stripe unit */
 	int			m_swidth;	/* stripe width */
-	int			m_sinoalign;	/* stripe unit inode alignmnt */
+	int			m_sinoalign;	/* stripe unit inode alignment */
 	int			m_attr_magicpct;/* 37% of the blocksize */
 	int			m_dir_magicpct;	/* 37% of the dir blocksize */
 	__uint8_t		m_mk_sharedro;	/* mark shared ro on unmount */
@@ -510,9 +510,12 @@ xfs_preferred_iosize(xfs_mount_t *mp)
  */
 #define XFS_MFSI_SECOND		0x01	/* Secondary mount -- skip stuff */
 #define XFS_MFSI_CLIENT		0x02	/* Is a client -- skip lots of stuff */
+/*	XFS_MFSI_RRINODES	*/
 #define XFS_MFSI_NOUNLINK	0x08	/* Skip unlinked inode processing in */
 					/* log recovery */
 #define XFS_MFSI_NO_QUOTACHECK	0x10	/* Skip quotacheck processing */
+/*	XFS_MFSI_CONVERT_SUNIT	*/
+#define XFS_MFSI_QUIET		0x40	/* Be silent if mount errors found */
 
 /*
  * Macros for getting from mount to vfs and back.
@@ -581,7 +584,7 @@ extern int	xfs_mod_incore_sb_unlocked(xfs_mount_t *, xfs_sb_field_t,
 extern int	xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *,
 			uint, int);
 extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int);
-extern int	xfs_readsb(xfs_mount_t *mp);
+extern int	xfs_readsb(xfs_mount_t *, int);
 extern void	xfs_freesb(xfs_mount_t *);
 extern void	xfs_do_force_shutdown(bhv_desc_t *, int, char *, int);
 extern int	xfs_syncsub(xfs_mount_t *, int, int, int *);
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 82a08baf437b..7fbef974bce6 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -31,7 +31,7 @@
 typedef __uint32_t	xfs_dqid_t;
 
 /*
- * Eventhough users may not have quota limits occupying all 64-bits,
+ * Even though users may not have quota limits occupying all 64-bits,
  * they may need 64-bit accounting. Hence, 64-bit quota-counters,
  * and quota-limits. This is a waste in the common case, but hey ...
  */
@@ -196,10 +196,11 @@ typedef struct xfs_qoff_logformat {
 #define XFS_QMOPT_QUOTAOFF	0x0000080 /* quotas are being turned off */
 #define XFS_QMOPT_UMOUNTING	0x0000100 /* filesys is being unmounted */
 #define XFS_QMOPT_DOLOG		0x0000200 /* log buf changes (in quotacheck) */
-#define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if necessary */
+#define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if needed */
 #define XFS_QMOPT_ILOCKED	0x0000800 /* inode is already locked (excl) */
-#define XFS_QMOPT_DQREPAIR	0x0001000 /* repair dquot, if damaged. */
+#define XFS_QMOPT_DQREPAIR	0x0001000 /* repair dquot if damaged */
 #define XFS_QMOPT_GQUOTA	0x0002000 /* group dquot requested */
+#define XFS_QMOPT_ENOSPC	0x0004000 /* enospc instead of edquot (prj) */
 
 /*
  * flags to xfs_trans_mod_dquot to indicate which field needs to be
@@ -246,7 +247,7 @@ typedef struct xfs_qoff_logformat {
 #ifdef __KERNEL__
 /*
  * This check is done typically without holding the inode lock;
- * that may seem racey, but it is harmless in the context that it is used.
+ * that may seem racy, but it is harmless in the context that it is used.
  * The inode cannot go inactive as long a reference is kept, and
  * therefore if dquot(s) were attached, they'll stay consistent.
  * If, for example, the ownership of the inode changes while
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 2918956553a5..8d056cef5d1f 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -490,7 +490,7 @@ xfs_trans_mod_sb(
 	case XFS_TRANS_SB_RES_FREXTENTS:
 		/*
 		 * The allocation has already been applied to the
-		 * in-core superblocks's counter.  This should only
+		 * in-core superblock's counter.  This should only
 		 * be applied to the on-disk superblock.
 		 */
 		ASSERT(delta < 0);
@@ -611,7 +611,7 @@ xfs_trans_apply_sb_deltas(
 
 	if (whole)
 		/*
-		 * Log the whole thing, the fields are discontiguous.
+		 * Log the whole thing, the fields are noncontiguous.
 		 */
 		xfs_trans_log_buf(tp, bp, 0, sizeof(xfs_sb_t) - 1);
 	else
@@ -669,7 +669,7 @@ xfs_trans_unreserve_and_mod_sb(
 	/*
 	 * Apply any superblock modifications to the in-core version.
 	 * The t_res_fdblocks_delta and t_res_frextents_delta fields are
-	 * explicity NOT applied to the in-core superblock.
+	 * explicitly NOT applied to the in-core superblock.
 	 * The idea is that that has already been done.
 	 */
 	if (tp->t_flags & XFS_TRANS_SB_DIRTY) {
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index e48befa4e337..100d9a4b38ee 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -354,7 +354,7 @@ typedef struct xfs_trans {
 	xfs_lsn_t		t_commit_lsn;	/* log seq num of end of
 						 * transaction. */
 	struct xfs_mount	*t_mountp;	/* ptr to fs mount struct */
-	struct xfs_dquot_acct   *t_dqinfo;	/* accting info for dquots */
+	struct xfs_dquot_acct   *t_dqinfo;	/* acctg info for dquots */
 	xfs_trans_callback_t	t_callback;	/* transaction callback */
 	void			*t_callarg;	/* callback arg */
 	unsigned int		t_flags;	/* misc flags */
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index e341409172d2..7c5894d59f81 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -272,7 +272,7 @@ xfs_trans_log_inode(
 	 * This is to coordinate with the xfs_iflush() and xfs_iflush_done()
 	 * routines in the eventual clearing of the ilf_fields bits.
 	 * See the big comment in xfs_iflush() for an explanation of
-	 * this coorination mechanism.
+	 * this coordination mechanism.
 	 */
 	flags |= ip->i_itemp->ili_last_fields;
 	ip->i_itemp->ili_format.ilf_fields |= flags;
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index d4ec4dfaf19c..f0e09ca14139 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -442,6 +442,9 @@ xfs_mount(
 	p = vfs_bhv_lookup(vfsp, VFS_POSITION_IO);
 	mp->m_io_ops = p ? *(xfs_ioops_t *) vfs_bhv_custom(p) : xfs_iocore_xfs;
 
+	if (args->flags & XFSMNT_QUIET)
+		flags |= XFS_MFSI_QUIET;
+
 	/*
 	 * Open real time and log devices - order is important.
 	 */
@@ -492,7 +495,7 @@ xfs_mount(
 	error = xfs_start_flags(vfsp, args, mp);
 	if (error)
 		goto error1;
-	error = xfs_readsb(mp);
+	error = xfs_readsb(mp, flags);
 	if (error)
 		goto error1;
 	error = xfs_finish_flags(vfsp, args, mp);
@@ -880,10 +883,10 @@ xfs_statvfs(
  *		       determine if they should be flushed sync, async, or
  *		       delwri.
  *      SYNC_CLOSE   - This flag is passed when the system is being
- *		       unmounted.  We should sync and invalidate everthing.
+ *		       unmounted.  We should sync and invalidate everything.
  *      SYNC_FSDATA  - This indicates that the caller would like to make
  *		       sure the superblock is safe on disk.  We can ensure
- *		       this by simply makeing sure the log gets flushed
+ *		       this by simply making sure the log gets flushed
  *		       if SYNC_BDFLUSH is set, and by actually writing it
  *		       out otherwise.
  *
@@ -908,7 +911,7 @@ xfs_sync(
  *
  * This routine supports all of the flags defined for the generic VFS_SYNC
  * interface as explained above under xfs_sync.  In the interests of not
- * changing interfaces within the 6.5 family, additional internallly-
+ * changing interfaces within the 6.5 family, additional internally-
  * required functions are specified within a separate xflags parameter,
  * only available by calling this routine.
  *
@@ -1090,7 +1093,7 @@ xfs_sync_inodes(
 		 * If this is just vfs_sync() or pflushd() calling
 		 * then we can skip inodes for which it looks like
 		 * there is nothing to do.  Since we don't have the
-		 * inode locked this is racey, but these are periodic
+		 * inode locked this is racy, but these are periodic
 		 * calls so it doesn't matter.  For the others we want
 		 * to know for sure, so we at least try to lock them.
 		 */
@@ -1429,7 +1432,7 @@ xfs_sync_inodes(
  *
  * This routine supports all of the flags defined for the generic VFS_SYNC
  * interface as explained above under xfs_sync.  In the interests of not
- * changing interfaces within the 6.5 family, additional internallly-
+ * changing interfaces within the 6.5 family, additional internally-
  * required functions are specified within a separate xflags parameter,
  * only available by calling this routine.
  *
@@ -1697,8 +1700,9 @@ xfs_parseargs(
 	int			dsunit, dswidth, vol_dsunit, vol_dswidth;
 	int			iosize;
 
-	args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
 	args->flags |= XFSMNT_IDELETE;
+	args->flags |= XFSMNT_BARRIER;
+	args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
 
 	if (!options)
 		goto done;
@@ -1947,8 +1951,6 @@ xfs_showargs(
 		seq_printf(m, "," MNTOPT_IKEEP);
 	if (!(mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE))
 		seq_printf(m, "," MNTOPT_LARGEIO);
-	if (mp->m_flags & XFS_MOUNT_BARRIER)
-		seq_printf(m, "," MNTOPT_BARRIER);
 
 	if (!(vfsp->vfs_flag & VFS_32BITINODES))
 		seq_printf(m, "," MNTOPT_64BITINODE);
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 0f0a64e81db9..fa71b305ba5c 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -848,7 +848,7 @@ xfs_setattr(
 	 * If this is a synchronous mount, make sure that the
 	 * transaction goes to disk before returning to the user.
 	 * This is slightly sub-optimal in that truncates require
-	 * two sync transactions instead of one for wsync filesytems.
+	 * two sync transactions instead of one for wsync filesystems.
 	 * One for the truncate and one for the timestamps since we
 	 * don't want to change the timestamps unless we're sure the
 	 * truncate worked.  Truncates are less than 1% of the laddis
@@ -1170,7 +1170,7 @@ xfs_fsync(
 
 		/*
 		 * If this inode is on the RT dev we need to flush that
-		 * cache aswell.
+		 * cache as well.
 		 */
 		if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME)
 			xfs_blkdev_issue_flush(ip->i_mount->m_rtdev_targp);
@@ -1380,7 +1380,7 @@ xfs_inactive_symlink_rmt(
 	 */
 	ntp = xfs_trans_dup(tp);
 	/*
-	 * Commit the transaction containing extent freeing and EFD's.
+	 * Commit the transaction containing extent freeing and EFDs.
 	 * If we get an error on the commit here or on the reserve below,
 	 * we need to unlock the inode since the new transaction doesn't
 	 * have the inode attached.
@@ -2023,7 +2023,7 @@ xfs_create(
 	XFS_QM_DQRELE(mp, gdqp);
 
 	/*
-	 * Propogate the fact that the vnode changed after the
+	 * Propagate the fact that the vnode changed after the
 	 * xfs_inode locks have been released.
 	 */
 	VOP_VNODE_CHANGE(vp, VCHANGE_FLAGS_TRUNCATED, 3);
@@ -2370,7 +2370,7 @@ xfs_remove(
 	 * for a log reservation. Since we'll have to wait for the
 	 * inactive code to complete before returning from xfs_iget,
 	 * we need to make sure that we don't have log space reserved
-	 * when we call xfs_iget.  Instead we get an unlocked referece
+	 * when we call xfs_iget.  Instead we get an unlocked reference
 	 * to the inode before getting our log reservation.
 	 */
 	error = xfs_get_dir_entry(dentry, &ip);
@@ -3020,7 +3020,7 @@ xfs_rmdir(
 	 * for a log reservation.  Since we'll have to wait for the
 	 * inactive code to complete before returning from xfs_iget,
 	 * we need to make sure that we don't have log space reserved
-	 * when we call xfs_iget.  Instead we get an unlocked referece
+	 * when we call xfs_iget.  Instead we get an unlocked reference
 	 * to the inode before getting our log reservation.
 	 */
 	error = xfs_get_dir_entry(dentry, &cdp);
@@ -4649,6 +4649,10 @@ vnodeops_t xfs_vnodeops = {
 #ifdef HAVE_SENDFILE
 	.vop_sendfile		= xfs_sendfile,
 #endif
+#ifdef HAVE_SPLICE
+	.vop_splice_read	= xfs_splice_read,
+	.vop_splice_write	= xfs_splice_write,
+#endif
 	.vop_write		= xfs_write,
 	.vop_ioctl		= xfs_ioctl,
 	.vop_getattr		= xfs_getattr,