18 files changed, 529 insertions, 613 deletions

diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index e040f1ce1b6..9b1bb17a050 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -37,7 +37,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
 #ifdef DEBUG
 	if (unlikely(!(flags & KM_LARGE) && (size > PAGE_SIZE))) {
 		printk(KERN_WARNING "Large %s attempt, size=%ld\n",
-			__FUNCTION__, (long)size);
+			__func__, (long)size);
 		dump_stack();
 	}
 #endif
@@ -52,7 +52,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
 		if (!(++retries % 100))
 			printk(KERN_ERR "XFS: possible memory allocation "
 					"deadlock in %s (mode:0x%x)\n",
-					__FUNCTION__, lflags);
+					__func__, lflags);
 		congestion_wait(WRITE, HZ/50);
 	} while (1);
 }
@@ -129,7 +129,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
 		if (!(++retries % 100))
 			printk(KERN_ERR "XFS: possible memory allocation "
 					"deadlock in %s (mode:0x%x)\n",
-					__FUNCTION__, lflags);
+					__func__, lflags);
 		congestion_wait(WRITE, HZ/50);
 	} while (1);
 }
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index e0519529c26..a55c3b26d84 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -243,8 +243,12 @@ xfs_end_bio_unwritten(
 	size_t			size = ioend->io_size;
 
 	if (likely(!ioend->io_error)) {
-		if (!XFS_FORCED_SHUTDOWN(ip->i_mount))
-			xfs_iomap_write_unwritten(ip, offset, size);
+		if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+			int error;
+			error = xfs_iomap_write_unwritten(ip, offset, size);
+			if (error)
+				ioend->io_error = error;
+		}
 		xfs_setfilesize(ioend);
 	}
 	xfs_destroy_ioend(ioend);
@@ -1532,9 +1536,9 @@ xfs_vm_bmap(
 	struct xfs_inode	*ip = XFS_I(inode);
 
 	xfs_itrace_entry(XFS_I(inode));
-	xfs_rwlock(ip, VRWLOCK_READ);
+	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 	xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF);
-	xfs_rwunlock(ip, VRWLOCK_READ);
+	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 	return generic_block_bmap(mapping, block, xfs_get_blocks);
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index e347bfd47c9..52f6846101d 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -400,7 +400,7 @@ _xfs_buf_lookup_pages(
 				printk(KERN_ERR
 					"XFS: possible memory allocation "
 					"deadlock in %s (mode:0x%x)\n",
-					__FUNCTION__, gfp_mask);
+					__func__, gfp_mask);
 
 			XFS_STATS_INC(xb_page_retries);
 			xfsbufd_wakeup(0, gfp_mask);
@@ -598,7 +598,7 @@ xfs_buf_get_flags(
 		error = _xfs_buf_map_pages(bp, flags);
 		if (unlikely(error)) {
 			printk(KERN_WARNING "%s: failed to map pages\n",
-					__FUNCTION__);
+					__func__);
 			goto no_buffer;
 		}
 	}
@@ -778,7 +778,7 @@ xfs_buf_get_noaddr(
 	error = _xfs_buf_map_pages(bp, XBF_MAPPED);
 	if (unlikely(error)) {
 		printk(KERN_WARNING "%s: failed to map pages\n",
-				__FUNCTION__);
+				__func__);
 		goto fail_free_mem;
 	}
 
@@ -1060,7 +1060,7 @@ xfs_buf_iostart(
 		bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_ASYNC);
 		bp->b_flags |= flags & (XBF_DELWRI | XBF_ASYNC);
 		xfs_buf_delwri_queue(bp, 1);
-		return status;
+		return 0;
 	}
 
 	bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_ASYNC | XBF_DELWRI | \
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index a3d207de48b..841d7883528 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -387,11 +387,15 @@ static inline int XFS_bwrite(xfs_buf_t *bp)
 	return error;
 }
 
-static inline int xfs_bdwrite(void *mp, xfs_buf_t *bp)
+/*
+ * No error can be returned from xfs_buf_iostart for delwri
+ * buffers as they are queued and no I/O is issued.
+ */
+static inline void xfs_bdwrite(void *mp, xfs_buf_t *bp)
 {
 	bp->b_strat = xfs_bdstrat_cb;
 	bp->b_fspriv3 = mp;
-	return xfs_buf_iostart(bp, XBF_DELWRI | XBF_ASYNC);
+	(void)xfs_buf_iostart(bp, XBF_DELWRI | XBF_ASYNC);
 }
 
 #define XFS_bdstrat(bp) xfs_buf_iorequest(bp)
diff --git a/fs/xfs/linux-2.6/xfs_cred.h b/fs/xfs/linux-2.6/xfs_cred.h
index e7f3da61c6c..652721ce0ea 100644
--- a/fs/xfs/linux-2.6/xfs_cred.h
+++ b/fs/xfs/linux-2.6/xfs_cred.h
@@ -30,7 +30,7 @@ typedef struct cred {
 extern struct cred *sys_cred;
 
 /* this is a hack.. (assumes sys_cred is the only cred_t in the system) */
-static __inline int capable_cred(cred_t *cr, int cid)
+static inline int capable_cred(cred_t *cr, int cid)
 {
 	return (cr == sys_cred) ? 1 : capable(cid);
 }
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index ca4f66c4de1..265f0168ab7 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -22,6 +22,7 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
+#include "xfs_dir2.h"
 #include "xfs_dmapi.h"
 #include "xfs_mount.h"
 #include "xfs_export.h"
@@ -30,8 +31,6 @@
 #include "xfs_inode.h"
 #include "xfs_vfsops.h"
 
-static struct dentry dotdot = { .d_name.name = "..", .d_name.len = 2, };
-
 /*
  * Note that we only accept fileids which are long enough rather than allow
  * the parent generation number to default to zero.  XFS considers zero a
@@ -66,7 +65,7 @@ xfs_fs_encode_fh(
 	int			len;
 
 	/* Directories don't need their parent encoded, they have ".." */
-	if (S_ISDIR(inode->i_mode))
+	if (S_ISDIR(inode->i_mode) || !connectable)
 		fileid_type = FILEID_INO32_GEN;
 	else
 		fileid_type = FILEID_INO32_GEN_PARENT;
@@ -213,17 +212,16 @@ xfs_fs_get_parent(
 	struct dentry		*child)
 {
 	int			error;
-	bhv_vnode_t		*cvp;
+	struct xfs_inode	*cip;
 	struct dentry		*parent;
 
-	cvp = NULL;
-	error = xfs_lookup(XFS_I(child->d_inode), &dotdot, &cvp);
+	error = xfs_lookup(XFS_I(child->d_inode), &xfs_name_dotdot, &cip);
 	if (unlikely(error))
 		return ERR_PTR(-error);
 
-	parent = d_alloc_anon(vn_to_inode(cvp));
+	parent = d_alloc_anon(cip->i_vnode);
 	if (unlikely(!parent)) {
-		VN_RELE(cvp);
+		iput(cip->i_vnode);
 		return ERR_PTR(-ENOMEM);
 	}
 	return parent;
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index edab1ffbb16..05905246434 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -469,16 +469,11 @@ xfs_file_open_exec(
 	struct inode	*inode)
 {
 	struct xfs_mount *mp = XFS_M(inode->i_sb);
+	struct xfs_inode *ip = XFS_I(inode);
 
-	if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI)) {
-		if (DM_EVENT_ENABLED(XFS_I(inode), DM_EVENT_READ)) {
-			bhv_vnode_t *vp = vn_from_inode(inode);
-
-			return -XFS_SEND_DATA(mp, DM_EVENT_READ,
-						vp, 0, 0, 0, NULL);
-		}
-	}
-
+	if (unlikely(mp->m_flags & XFS_MOUNT_DMAPI) &&
+	             DM_EVENT_ENABLED(ip, DM_EVENT_READ))
+		return -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, 0, 0, 0, NULL);
 	return 0;
 }
 #endif /* HAVE_FOP_OPEN_EXEC */
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index ac6d34cc355..1eefe61f0e1 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -17,18 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_vnodeops.h"
-
-/*
- * The following six includes are needed so that we can include
- * xfs_inode.h.  What a mess..
- */
 #include "xfs_bmap_btree.h"
-#include "xfs_inum.h"
-#include "xfs_dir2.h"
-#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
-
 #include "xfs_inode.h"
 
 int  fs_noerr(void) { return 0; }
@@ -42,11 +31,10 @@ xfs_tosspages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 
-	if (VN_CACHED(vp))
-		truncate_inode_pages(inode->i_mapping, first);
+	if (mapping->nrpages)
+		truncate_inode_pages(mapping, first);
 }
 
 int
@@ -56,15 +44,14 @@ xfs_flushinval_pages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 	int		ret = 0;
 
-	if (VN_CACHED(vp)) {
+	if (mapping->nrpages) {
 		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = filemap_write_and_wait(inode->i_mapping);
+		ret = filemap_write_and_wait(mapping);
 		if (!ret)
-			truncate_inode_pages(inode->i_mapping, first);
+			truncate_inode_pages(mapping, first);
 	}
 	return ret;
 }
@@ -77,17 +64,16 @@ xfs_flush_pages(
 	uint64_t	flags,
 	int		fiopt)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
-	struct inode	*inode = vn_to_inode(vp);
+	struct address_space *mapping = ip->i_vnode->i_mapping;
 	int		ret = 0;
 	int		ret2;
 
-	if (VN_DIRTY(vp)) {
+	if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
 		xfs_iflags_clear(ip, XFS_ITRUNCATED);
-		ret = filemap_fdatawrite(inode->i_mapping);
+		ret = filemap_fdatawrite(mapping);
 		if (flags & XFS_B_ASYNC)
 			return ret;
-		ret2 = filemap_fdatawait(inode->i_mapping);
+		ret2 = filemap_fdatawait(mapping);
 		if (!ret)
 			ret = ret2;
 	}
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index f34bd010eb5..bf775979385 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -651,314 +651,6 @@ xfs_attrmulti_by_handle(
 	return -error;
 }
 
-/* prototypes for a few of the stack-hungry cases that have
- * their own functions.  Functions are defined after their use
- * so gcc doesn't get fancy and inline them with -03 */
-
-STATIC int
-xfs_ioc_space(
-	struct xfs_inode	*ip,
-	struct inode		*inode,
-	struct file		*filp,
-	int			flags,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_bulkstat(
-	xfs_mount_t		*mp,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgeometry_v1(
-	xfs_mount_t		*mp,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgeometry(
-	xfs_mount_t		*mp,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_xattr(
-	xfs_inode_t		*ip,
-	struct file		*filp,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_fsgetxattr(
-	xfs_inode_t		*ip,
-	int			attr,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_getbmap(
-	struct xfs_inode	*ip,
-	int			flags,
-	unsigned int		cmd,
-	void			__user *arg);
-
-STATIC int
-xfs_ioc_getbmapx(
-	struct xfs_inode	*ip,
-	void			__user *arg);
-
-int
-xfs_ioctl(
-	xfs_inode_t		*ip,
-	struct file		*filp,
-	int			ioflags,
-	unsigned int		cmd,
-	void			__user *arg)
-{
-	struct inode		*inode = filp->f_path.dentry->d_inode;
-	xfs_mount_t		*mp = ip->i_mount;
-	int			error;
-
-	xfs_itrace_entry(XFS_I(inode));
-	switch (cmd) {
-
-	case XFS_IOC_ALLOCSP:
-	case XFS_IOC_FREESP:
-	case XFS_IOC_RESVSP:
-	case XFS_IOC_UNRESVSP:
-	case XFS_IOC_ALLOCSP64:
-	case XFS_IOC_FREESP64:
-	case XFS_IOC_RESVSP64:
-	case XFS_IOC_UNRESVSP64:
-		/*
-		 * Only allow the sys admin to reserve space unless
-		 * unwritten extents are enabled.
-		 */
-		if (!xfs_sb_version_hasextflgbit(&mp->m_sb) &&
-		    !capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
-
-	case XFS_IOC_DIOINFO: {
-		struct dioattr	da;
-		xfs_buftarg_t	*target =
-			XFS_IS_REALTIME_INODE(ip) ?
-			mp->m_rtdev_targp : mp->m_ddev_targp;
-
-		da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
-		da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
-
-		if (copy_to_user(arg, &da, sizeof(da)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_FSBULKSTAT_SINGLE:
-	case XFS_IOC_FSBULKSTAT:
-	case XFS_IOC_FSINUMBERS:
-		return xfs_ioc_bulkstat(mp, cmd, arg);
-
-	case XFS_IOC_FSGEOMETRY_V1:
-		return xfs_ioc_fsgeometry_v1(mp, arg);
-
-	case XFS_IOC_FSGEOMETRY:
-		return xfs_ioc_fsgeometry(mp, arg);
-
-	case XFS_IOC_GETVERSION:
-		return put_user(inode->i_generation, (int __user *)arg);
-
-	case XFS_IOC_FSGETXATTR:
-		return xfs_ioc_fsgetxattr(ip, 0, arg);
-	case XFS_IOC_FSGETXATTRA:
-		return xfs_ioc_fsgetxattr(ip, 1, arg);
-	case XFS_IOC_GETXFLAGS:
-	case XFS_IOC_SETXFLAGS:
-	case XFS_IOC_FSSETXATTR:
-		return xfs_ioc_xattr(ip, filp, cmd, arg);
-
-	case XFS_IOC_FSSETDM: {
-		struct fsdmidata	dmi;
-
-		if (copy_from_user(&dmi, arg, sizeof(dmi)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
-				dmi.fsd_dmstate);
-		return -error;
-	}
-
-	case XFS_IOC_GETBMAP:
-	case XFS_IOC_GETBMAPA:
-		return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
-
-	case XFS_IOC_GETBMAPX:
-		return xfs_ioc_getbmapx(ip, arg);
-
-	case XFS_IOC_FD_TO_HANDLE:
-	case XFS_IOC_PATH_TO_HANDLE:
-	case XFS_IOC_PATH_TO_FSHANDLE:
-		return xfs_find_handle(cmd, arg);
-
-	case XFS_IOC_OPEN_BY_HANDLE:
-		return xfs_open_by_handle(mp, arg, filp, inode);
-
-	case XFS_IOC_FSSETDM_BY_HANDLE:
-		return xfs_fssetdm_by_handle(mp, arg, inode);
-
-	case XFS_IOC_READLINK_BY_HANDLE:
-		return xfs_readlink_by_handle(mp, arg, inode);
-
-	case XFS_IOC_ATTRLIST_BY_HANDLE:
-		return xfs_attrlist_by_handle(mp, arg, inode);
-
-	case XFS_IOC_ATTRMULTI_BY_HANDLE:
-		return xfs_attrmulti_by_handle(mp, arg, inode);
-
-	case XFS_IOC_SWAPEXT: {
-		error = xfs_swapext((struct xfs_swapext __user *)arg);
-		return -error;
-	}
-
-	case XFS_IOC_FSCOUNTS: {
-		xfs_fsop_counts_t out;
-
-		error = xfs_fs_counts(mp, &out);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &out, sizeof(out)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_SET_RESBLKS: {
-		xfs_fsop_resblks_t inout;
-		__uint64_t	   in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&inout, arg, sizeof(inout)))
-			return -XFS_ERROR(EFAULT);
-
-		/* input parameter is passed in resblks field of structure */
-		in = inout.resblks;
-		error = xfs_reserve_blocks(mp, &in, &inout);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &inout, sizeof(inout)))
-			return -XFS_ERROR(EFAULT);
-		return 0;
-	}
-
-	case XFS_IOC_GET_RESBLKS: {
-		xfs_fsop_resblks_t out;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		error = xfs_reserve_blocks(mp, NULL, &out);
-		if (error)
-			return -error;
-
-		if (copy_to_user(arg, &out, sizeof(out)))
-			return -XFS_ERROR(EFAULT);
-
-		return 0;
-	}
-
-	case XFS_IOC_FSGROWFSDATA: {
-		xfs_growfs_data_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_data(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FSGROWFSLOG: {
-		xfs_growfs_log_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_log(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FSGROWFSRT: {
-		xfs_growfs_rt_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_growfs_rt(mp, &in);
-		return -error;
-	}
-
-	case XFS_IOC_FREEZE:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (inode->i_sb->s_frozen == SB_UNFROZEN)
-			freeze_bdev(inode->i_sb->s_bdev);
-		return 0;
-
-	case XFS_IOC_THAW:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-		if (inode->i_sb->s_frozen != SB_UNFROZEN)
-			thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
-		return 0;
-
-	case XFS_IOC_GOINGDOWN: {
-		__uint32_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (get_user(in, (__uint32_t __user *)arg))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_fs_goingdown(mp, in);
-		return -error;
-	}
-
-	case XFS_IOC_ERROR_INJECTION: {
-		xfs_error_injection_t in;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&in, arg, sizeof(in)))
-			return -XFS_ERROR(EFAULT);
-
-		error = xfs_errortag_add(in.errtag, mp);
-		return -error;
-	}
-
-	case XFS_IOC_ERROR_CLEARALL:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		error = xfs_errortag_clearall(mp, 1);
-		return -error;
-
-	default:
-		return -ENOTTY;
-	}
-}
-
 STATIC int
 xfs_ioc_space(
 	struct xfs_inode	*ip,
@@ -1179,85 +871,85 @@ xfs_ioc_fsgetxattr(
 }
 
 STATIC int
-xfs_ioc_xattr(
+xfs_ioc_fssetxattr(
 	xfs_inode_t		*ip,
 	struct file		*filp,
-	unsigned int		cmd,
 	void			__user *arg)
 {
 	struct fsxattr		fa;
 	struct bhv_vattr	*vattr;
-	int			error = 0;
+	int			error;
 	int			attr_flags;
-	unsigned int		flags;
+
+	if (copy_from_user(&fa, arg, sizeof(fa)))
+		return -EFAULT;
 
 	vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
 	if (unlikely(!vattr))
 		return -ENOMEM;
 
-	switch (cmd) {
-	case XFS_IOC_FSSETXATTR: {
-		if (copy_from_user(&fa, arg, sizeof(fa))) {
-			error = -EFAULT;
-			break;
-		}
+	attr_flags = 0;
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		attr_flags |= ATTR_NONBLOCK;
 
-		attr_flags = 0;
-		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-			attr_flags |= ATTR_NONBLOCK;
+	vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
+	vattr->va_xflags  = fa.fsx_xflags;
+	vattr->va_extsize = fa.fsx_extsize;
+	vattr->va_projid  = fa.fsx_projid;
 
-		vattr->va_mask = XFS_AT_XFLAGS | XFS_AT_EXTSIZE | XFS_AT_PROJID;
-		vattr->va_xflags  = fa.fsx_xflags;
-		vattr->va_extsize = fa.fsx_extsize;
-		vattr->va_projid  = fa.fsx_projid;
+	error = -xfs_setattr(ip, vattr, attr_flags, NULL);
+	if (!error)
+		vn_revalidate(XFS_ITOV(ip));	/* update flags */
+	kfree(vattr);
+	return 0;
+}
 
-		error = xfs_setattr(ip, vattr, attr_flags, NULL);
-		if (likely(!error))
-			vn_revalidate(XFS_ITOV(ip));	/* update flags */
-		error = -error;
-		break;
-	}
+STATIC int
+xfs_ioc_getxflags(
+	xfs_inode_t		*ip,
+	void			__user *arg)
+{
+	unsigned int		flags;
 
-	case XFS_IOC_GETXFLAGS: {
-		flags = xfs_di2lxflags(ip->i_d.di_flags);
-		if (copy_to_user(arg, &flags, sizeof(flags)))
-			error = -EFAULT;
-		break;
-	}
+	flags = xfs_di2lxflags(ip->i_d.di_flags);
+	if (copy_to_user(arg, &flags, sizeof(flags)))
+		return -EFAULT;
+	return 0;
+}
 
-	case XFS_IOC_SETXFLAGS: {
-		if (copy_from_user(&flags, arg, sizeof(flags))) {
-			error = -EFAULT;
-			break;
-		}
+STATIC int
+xfs_ioc_setxflags(
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	void			__user *arg)
+{
+	struct bhv_vattr	*vattr;
+	unsigned int		flags;
+	int			attr_flags;
+	int			error;
 
-		if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
-			      FS_NOATIME_FL | FS_NODUMP_FL | \
-			      FS_SYNC_FL)) {
-			error = -EOPNOTSUPP;
-			break;
-		}
+	if (copy_from_user(&flags, arg, sizeof(flags)))
+		return -EFAULT;
 
-		attr_flags = 0;
-		if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-			attr_flags |= ATTR_NONBLOCK;
+	if (flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | \
+		      FS_NOATIME_FL | FS_NODUMP_FL | \
+		      FS_SYNC_FL))
+		return -EOPNOTSUPP;
 
-		vattr->va_mask = XFS_AT_XFLAGS;
-		vattr->va_xflags = xfs_merge_ioc_xflags(flags,
-							xfs_ip2xflags(ip));
+	vattr = kmalloc(sizeof(*vattr), GFP_KERNEL);
+	if (unlikely(!vattr))
+		return -ENOMEM;
 
-		error = xfs_setattr(ip, vattr, attr_flags, NULL);
-		if (likely(!error))
-			vn_revalidate(XFS_ITOV(ip));	/* update flags */
-		error = -error;
-		break;
-	}
+	attr_flags = 0;
+	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
+		attr_flags |= ATTR_NONBLOCK;
 
-	default:
-		error = -ENOTTY;
-		break;
-	}
+	vattr->va_mask = XFS_AT_XFLAGS;
+	vattr->va_xflags = xfs_merge_ioc_xflags(flags, xfs_ip2xflags(ip));
 
+	error = -xfs_setattr(ip, vattr, attr_flags, NULL);
+	if (likely(!error))
+		vn_revalidate(XFS_ITOV(ip));	/* update flags */
 	kfree(vattr);
 	return error;
 }
@@ -1332,3 +1024,259 @@ xfs_ioc_getbmapx(
 
 	return 0;
 }
+
+int
+xfs_ioctl(
+	xfs_inode_t		*ip,
+	struct file		*filp,
+	int			ioflags,
+	unsigned int		cmd,
+	void			__user *arg)
+{
+	struct inode		*inode = filp->f_path.dentry->d_inode;
+	xfs_mount_t		*mp = ip->i_mount;
+	int			error;
+
+	xfs_itrace_entry(XFS_I(inode));
+	switch (cmd) {
+
+	case XFS_IOC_ALLOCSP:
+	case XFS_IOC_FREESP:
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_ALLOCSP64:
+	case XFS_IOC_FREESP64:
+	case XFS_IOC_RESVSP64:
+	case XFS_IOC_UNRESVSP64:
+		/*
+		 * Only allow the sys admin to reserve space unless
+		 * unwritten extents are enabled.
+		 */
+		if (!xfs_sb_version_hasextflgbit(&mp->m_sb) &&
+		    !capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		return xfs_ioc_space(ip, inode, filp, ioflags, cmd, arg);
+
+	case XFS_IOC_DIOINFO: {
+		struct dioattr	da;
+		xfs_buftarg_t	*target =
+			XFS_IS_REALTIME_INODE(ip) ?
+			mp->m_rtdev_targp : mp->m_ddev_targp;
+
+		da.d_mem = da.d_miniosz = 1 << target->bt_sshift;
+		da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
+
+		if (copy_to_user(arg, &da, sizeof(da)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_FSBULKSTAT_SINGLE:
+	case XFS_IOC_FSBULKSTAT:
+	case XFS_IOC_FSINUMBERS:
+		return xfs_ioc_bulkstat(mp, cmd, arg);
+
+	case XFS_IOC_FSGEOMETRY_V1:
+		return xfs_ioc_fsgeometry_v1(mp, arg);
+
+	case XFS_IOC_FSGEOMETRY:
+		return xfs_ioc_fsgeometry(mp, arg);
+
+	case XFS_IOC_GETVERSION:
+		return put_user(inode->i_generation, (int __user *)arg);
+
+	case XFS_IOC_FSGETXATTR:
+		return xfs_ioc_fsgetxattr(ip, 0, arg);
+	case XFS_IOC_FSGETXATTRA:
+		return xfs_ioc_fsgetxattr(ip, 1, arg);
+	case XFS_IOC_FSSETXATTR:
+		return xfs_ioc_fssetxattr(ip, filp, arg);
+	case XFS_IOC_GETXFLAGS:
+		return xfs_ioc_getxflags(ip, arg);
+	case XFS_IOC_SETXFLAGS:
+		return xfs_ioc_setxflags(ip, filp, arg);
+
+	case XFS_IOC_FSSETDM: {
+		struct fsdmidata	dmi;
+
+		if (copy_from_user(&dmi, arg, sizeof(dmi)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_set_dmattrs(ip, dmi.fsd_dmevmask,
+				dmi.fsd_dmstate);
+		return -error;
+	}
+
+	case XFS_IOC_GETBMAP:
+	case XFS_IOC_GETBMAPA:
+		return xfs_ioc_getbmap(ip, ioflags, cmd, arg);
+
+	case XFS_IOC_GETBMAPX:
+		return xfs_ioc_getbmapx(ip, arg);
+
+	case XFS_IOC_FD_TO_HANDLE:
+	case XFS_IOC_PATH_TO_HANDLE:
+	case XFS_IOC_PATH_TO_FSHANDLE:
+		return xfs_find_handle(cmd, arg);
+
+	case XFS_IOC_OPEN_BY_HANDLE:
+		return xfs_open_by_handle(mp, arg, filp, inode);
+
+	case XFS_IOC_FSSETDM_BY_HANDLE:
+		return xfs_fssetdm_by_handle(mp, arg, inode);
+
+	case XFS_IOC_READLINK_BY_HANDLE:
+		return xfs_readlink_by_handle(mp, arg, inode);
+
+	case XFS_IOC_ATTRLIST_BY_HANDLE:
+		return xfs_attrlist_by_handle(mp, arg, inode);
+
+	case XFS_IOC_ATTRMULTI_BY_HANDLE:
+		return xfs_attrmulti_by_handle(mp, arg, inode);
+
+	case XFS_IOC_SWAPEXT: {
+		error = xfs_swapext((struct xfs_swapext __user *)arg);
+		return -error;
+	}
+
+	case XFS_IOC_FSCOUNTS: {
+		xfs_fsop_counts_t out;
+
+		error = xfs_fs_counts(mp, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_SET_RESBLKS: {
+		xfs_fsop_resblks_t inout;
+		__uint64_t	   in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&inout, arg, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+
+		/* input parameter is passed in resblks field of structure */
+		in = inout.resblks;
+		error = xfs_reserve_blocks(mp, &in, &inout);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &inout, sizeof(inout)))
+			return -XFS_ERROR(EFAULT);
+		return 0;
+	}
+
+	case XFS_IOC_GET_RESBLKS: {
+		xfs_fsop_resblks_t out;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_reserve_blocks(mp, NULL, &out);
+		if (error)
+			return -error;
+
+		if (copy_to_user(arg, &out, sizeof(out)))
+			return -XFS_ERROR(EFAULT);
+
+		return 0;
+	}
+
+	case XFS_IOC_FSGROWFSDATA: {
+		xfs_growfs_data_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_data(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSLOG: {
+		xfs_growfs_log_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_log(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FSGROWFSRT: {
+		xfs_growfs_rt_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_growfs_rt(mp, &in);
+		return -error;
+	}
+
+	case XFS_IOC_FREEZE:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (inode->i_sb->s_frozen == SB_UNFROZEN)
+			freeze_bdev(inode->i_sb->s_bdev);
+		return 0;
+
+	case XFS_IOC_THAW:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+		if (inode->i_sb->s_frozen != SB_UNFROZEN)
+			thaw_bdev(inode->i_sb->s_bdev, inode->i_sb);
+		return 0;
+
+	case XFS_IOC_GOINGDOWN: {
+		__uint32_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (get_user(in, (__uint32_t __user *)arg))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_fs_goingdown(mp, in);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_INJECTION: {
+		xfs_error_injection_t in;
+
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		if (copy_from_user(&in, arg, sizeof(in)))
+			return -XFS_ERROR(EFAULT);
+
+		error = xfs_errortag_add(in.errtag, mp);
+		return -error;
+	}
+
+	case XFS_IOC_ERROR_CLEARALL:
+		if (!capable(CAP_SYS_ADMIN))
+			return -EPERM;
+
+		error = xfs_errortag_clearall(mp, 1);
+		return -error;
+
+	default:
+		return -ENOTTY;
+	}
+}
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index cc4abd3daa4..0c958cf7775 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -62,12 +62,11 @@ void
 xfs_synchronize_atime(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp;
+	struct inode	*inode = ip->i_vnode;
 
-	vp = XFS_ITOV_NULL(ip);
-	if (vp) {
-		ip->i_d.di_atime.t_sec = (__int32_t)vp->i_atime.tv_sec;
-		ip->i_d.di_atime.t_nsec = (__int32_t)vp->i_atime.tv_nsec;
+	if (inode) {
+		ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
+		ip->i_d.di_atime.t_nsec = (__int32_t)inode->i_atime.tv_nsec;
 	}
 }
 
@@ -80,11 +79,10 @@ void
 xfs_mark_inode_dirty_sync(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp;
+	struct inode	*inode = ip->i_vnode;
 
-	vp = XFS_ITOV_NULL(ip);
-	if (vp)
-		mark_inode_dirty_sync(vn_to_inode(vp));
+	if (inode)
+		mark_inode_dirty_sync(inode);
 }
 
 /*
@@ -215,66 +213,62 @@ xfs_validate_fields(
  */
 STATIC int
 xfs_init_security(
-	bhv_vnode_t	*vp,
+	struct inode	*inode,
 	struct inode	*dir)
 {
-	struct inode	*ip = vn_to_inode(vp);
+	struct xfs_inode *ip = XFS_I(inode);
 	size_t		length;
 	void		*value;
 	char		*name;
 	int		error;
 
-	error = security_inode_init_security(ip, dir, &name, &value, &length);
+	error = security_inode_init_security(inode, dir, &name,
+					     &value, &length);
 	if (error) {
 		if (error == -EOPNOTSUPP)
 			return 0;
 		return -error;
 	}
 
-	error = xfs_attr_set(XFS_I(ip), name, value,
-			length, ATTR_SECURE);
+	error = xfs_attr_set(ip, name, value, length, ATTR_SECURE);
 	if (!error)
-		xfs_iflags_set(XFS_I(ip), XFS_IMODIFIED);
+		xfs_iflags_set(ip, XFS_IMODIFIED);
 
 	kfree(name);
 	kfree(value);
 	return error;
 }
 
-/*
- * Determine whether a process has a valid fs_struct (kernel daemons
- * like knfsd don't have an fs_struct).
- *
- * XXX(hch):  nfsd is broken, better fix it instead.
- */
-STATIC_INLINE int
-xfs_has_fs_struct(struct task_struct *task)
+static void
+xfs_dentry_to_name(
+	struct xfs_name	*namep,
+	struct dentry	*dentry)
 {
-	return (task->fs != init_task.fs);
+	namep->name = dentry->d_name.name;
+	namep->len = dentry->d_name.len;
 }
 
 STATIC void
 xfs_cleanup_inode(
 	struct inode	*dir,
-	bhv_vnode_t	*vp,
+	struct inode	*inode,
 	struct dentry	*dentry,
 	int		mode)
 {
-	struct dentry   teardown = {};
+	struct xfs_name	teardown;
 
 	/* Oh, the horror.
 	 * If we can't add the ACL or we fail in
 	 * xfs_init_security we must back out.
 	 * ENOSPC can hit here, among other things.
 	 */
-	teardown.d_inode = vn_to_inode(vp);
-	teardown.d_name = dentry->d_name;
+	xfs_dentry_to_name(&teardown, dentry);
 
 	if (S_ISDIR(mode))
-		xfs_rmdir(XFS_I(dir), &teardown);
+		xfs_rmdir(XFS_I(dir), &teardown, XFS_I(inode));
 	else
-		xfs_remove(XFS_I(dir), &teardown);
-	VN_RELE(vp);
+		xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
+	iput(inode);
 }
 
 STATIC int
@@ -284,9 +278,10 @@ xfs_vn_mknod(
 	int		mode,
 	dev_t		rdev)
 {
-	struct inode	*ip;
-	bhv_vnode_t	*vp = NULL, *dvp = vn_from_inode(dir);
+	struct inode	*inode;
+	struct xfs_inode *ip = NULL;
 	xfs_acl_t	*default_acl = NULL;
+	struct xfs_name	name;
 	attrexists_t	test_default_acl = _ACL_DEFAULT_EXISTS;
 	int		error;
 
@@ -297,59 +292,67 @@ xfs_vn_mknod(
 	if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
 		return -EINVAL;
 
-	if (unlikely(test_default_acl && test_default_acl(dvp))) {
+	if (test_default_acl && test_default_acl(dir)) {
 		if (!_ACL_ALLOC(default_acl)) {
 			return -ENOMEM;
 		}
-		if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
+		if (!_ACL_GET_DEFAULT(dir, default_acl)) {
 			_ACL_FREE(default_acl);
 			default_acl = NULL;
 		}
 	}
 
-	if (IS_POSIXACL(dir) && !default_acl && xfs_has_fs_struct(current))
+	xfs_dentry_to_name(&name, dentry);
+
+	if (IS_POSIXACL(dir) && !default_acl)
 		mode &= ~current->fs->umask;
 
 	switch (mode & S_IFMT) {
-	case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
+	case S_IFCHR:
+	case S_IFBLK:
+	case S_IFIFO:
+	case S_IFSOCK:
 		rdev = sysv_encode_dev(rdev);
 	case S_IFREG:
-		error = xfs_create(XFS_I(dir), dentry, mode, rdev, &vp, NULL);
+		error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip, NULL);
 		break;
 	case S_IFDIR:
-		error = xfs_mkdir(XFS_I(dir), dentry, mode, &vp, NULL);
+		error = xfs_mkdir(XFS_I(dir), &name, mode, &ip, NULL);
 		break;
 	default:
 		error = EINVAL;
 		break;
 	}
 
-	if (unlikely(!error)) {
-		error = xfs_init_security(vp, dir);
-		if (error)
-			xfs_cleanup_inode(dir, vp, dentry, mode);
-	}
+	if (unlikely(error))
+		goto out_free_acl;
 
-	if (unlikely(default_acl)) {
-		if (!error) {
-			error = _ACL_INHERIT(vp, mode, default_acl);
-			if (!error)
-				xfs_iflags_set(XFS_I(vp), XFS_IMODIFIED);
-			else
-				xfs_cleanup_inode(dir, vp, dentry, mode);
-		}
+	inode = ip->i_vnode;
+
+	error = xfs_init_security(inode, dir);
+	if (unlikely(error))
+		goto out_cleanup_inode;
+
+	if (default_acl) {
+		error = _ACL_INHERIT(inode, mode, default_acl);
+		if (unlikely(error))
+			goto out_cleanup_inode;
+		xfs_iflags_set(ip, XFS_IMODIFIED);
 		_ACL_FREE(default_acl);
 	}
 
-	if (likely(!error)) {
-		ASSERT(vp);
-		ip = vn_to_inode(vp);
 
-		if (S_ISDIR(mode))
-			xfs_validate_fields(ip);
-		d_instantiate(dentry, ip);
-		xfs_validate_fields(dir);
-	}
+	if (S_ISDIR(mode))
+		xfs_validate_fields(inode);
+	d_instantiate(dentry, inode);
+	xfs_validate_fields(dir);
+	return -error;
+
+ out_cleanup_inode:
+	xfs_cleanup_inode(dir, inode, dentry, mode);
+ out_free_acl:
+	if (default_acl)
+		_ACL_FREE(default_acl);
 	return -error;
 }
 
@@ -378,13 +381,15 @@ xfs_vn_lookup(
 	struct dentry	*dentry,
 	struct nameidata *nd)
 {
-	bhv_vnode_t	*cvp;
+	struct xfs_inode *cip;
+	struct xfs_name	name;
 	int		error;
 
 	if (dentry->d_name.len >= MAXNAMELEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	error = xfs_lookup(XFS_I(dir), dentry, &cvp);
+	xfs_dentry_to_name(&name, dentry);
+	error = xfs_lookup(XFS_I(dir), &name, &cip);
 	if (unlikely(error)) {
 		if (unlikely(error != ENOENT))
 			return ERR_PTR(-error);
@@ -392,7 +397,7 @@ xfs_vn_lookup(
 		return NULL;
 	}
 
-	return d_splice_alias(vn_to_inode(cvp), dentry);
+	return d_splice_alias(cip->i_vnode, dentry);
 }
 
 STATIC int
@@ -401,23 +406,24 @@ xfs_vn_link(
 	struct inode	*dir,
 	struct dentry	*dentry)
 {
-	struct inode	*ip;	/* inode of guy being linked to */
-	bhv_vnode_t	*vp;	/* vp of name being linked */
+	struct inode	*inode;	/* inode of guy being linked to */
+	struct xfs_name	name;
 	int		error;
 
-	ip = old_dentry->d_inode;	/* inode being linked to */
-	vp = vn_from_inode(ip);
+	inode = old_dentry->d_inode;
+	xfs_dentry_to_name(&name, dentry);
 
-	VN_HOLD(vp);
-	error = xfs_link(XFS_I(dir), vp, dentry);
+	igrab(inode);
+	error = xfs_link(XFS_I(dir), XFS_I(inode), &name);
 	if (unlikely(error)) {
-		VN_RELE(vp);
-	} else {
-		xfs_iflags_set(XFS_I(dir), XFS_IMODIFIED);
-		xfs_validate_fields(ip);
-		d_instantiate(dentry, ip);
+		iput(inode);
+		return -error;
 	}
-	return -error;
+
+	xfs_iflags_set(XFS_I(dir), XFS_IMODIFIED);
+	xfs_validate_fields(inode);
+	d_instantiate(dentry, inode);
+	return 0;
 }
 
 STATIC int
@@ -426,11 +432,13 @@ xfs_vn_unlink(
 	struct dentry	*dentry)
 {
 	struct inode	*inode;
+	struct xfs_name	name;
 	int		error;
 
 	inode = dentry->d_inode;
+	xfs_dentry_to_name(&name, dentry);
 
-	error = xfs_remove(XFS_I(dir), dentry);
+	error = xfs_remove(XFS_I(dir), &name, XFS_I(inode));
 	if (likely(!error)) {
 		xfs_validate_fields(dir);	/* size needs update */
 		xfs_validate_fields(inode);
@@ -444,29 +452,34 @@ xfs_vn_symlink(
 	struct dentry	*dentry,
 	const char	*symname)
 {
-	struct inode	*ip;
-	bhv_vnode_t	*cvp;	/* used to lookup symlink to put in dentry */
+	struct inode	*inode;
+	struct xfs_inode *cip = NULL;
+	struct xfs_name	name;
 	int		error;
 	mode_t		mode;
 
-	cvp = NULL;
-
 	mode = S_IFLNK |
 		(irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
+	xfs_dentry_to_name(&name, dentry);
 
-	error = xfs_symlink(XFS_I(dir), dentry, (char *)symname, mode,
-			    &cvp, NULL);
-	if (likely(!error && cvp)) {
-		error = xfs_init_security(cvp, dir);
-		if (likely(!error)) {
-			ip = vn_to_inode(cvp);
-			d_instantiate(dentry, ip);
-			xfs_validate_fields(dir);
-			xfs_validate_fields(ip);
-		} else {
-			xfs_cleanup_inode(dir, cvp, dentry, 0);
-		}
-	}
+	error = xfs_symlink(XFS_I(dir), &name, symname, mode, &cip, NULL);
+	if (unlikely(error))
+		goto out;
+
+	inode = cip->i_vnode;
+
+	error = xfs_init_security(inode, dir);
+	if (unlikely(error))
+		goto out_cleanup_inode;
+
+	d_instantiate(dentry, inode);
+	xfs_validate_fields(dir);
+	xfs_validate_fields(inode);
+	return 0;
+
+ out_cleanup_inode:
+	xfs_cleanup_inode(dir, inode, dentry, 0);
+ out:
 	return -error;
 }
 
@@ -476,9 +489,12 @@ xfs_vn_rmdir(
 	struct dentry	*dentry)
 {
 	struct inode	*inode = dentry->d_inode;
+	struct xfs_name	name;
 	int		error;
 
-	error = xfs_rmdir(XFS_I(dir), dentry);
+	xfs_dentry_to_name(&name, dentry);
+
+	error = xfs_rmdir(XFS_I(dir), &name, XFS_I(inode));
 	if (likely(!error)) {
 		xfs_validate_fields(inode);
 		xfs_validate_fields(dir);
@@ -494,12 +510,15 @@ xfs_vn_rename(
 	struct dentry	*ndentry)
 {
 	struct inode	*new_inode = ndentry->d_inode;
-	bhv_vnode_t	*tvp;	/* target directory */
+	struct xfs_name	oname;
+	struct xfs_name	nname;
 	int		error;
 
-	tvp = vn_from_inode(ndir);
+	xfs_dentry_to_name(&oname, odentry);
+	xfs_dentry_to_name(&nname, ndentry);
 
-	error = xfs_rename(XFS_I(odir), odentry, tvp, ndentry);
+	error = xfs_rename(XFS_I(odir), &oname, XFS_I(odentry->d_inode),
+							XFS_I(ndir), &nname);
 	if (likely(!error)) {
 		if (new_inode)
 			xfs_validate_fields(new_inode);
@@ -700,11 +719,19 @@ xfs_vn_setattr(
 	return -error;
 }
 
+/*
+ * block_truncate_page can return an error, but we can't propagate it
+ * at all here. Leave a complaint + stack trace in the syslog because
+ * this could be bad. If it is bad, we need to propagate the error further.
+ */
 STATIC void
 xfs_vn_truncate(
 	struct inode	*inode)
 {
-	block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_blocks);
+	int	error;
+	error = block_truncate_page(inode->i_mapping, inode->i_size,
+							xfs_get_blocks);
+	WARN_ON(error);
 }
 
 STATIC int
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 3ca39c4e5d2..e5143323e71 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -99,7 +99,6 @@
 /*
  * Feature macros (disable/enable)
  */
-#undef  HAVE_REFCACHE	/* reference cache not needed for NFS in 2.6 */
 #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 */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 16635338849..21c0dbc7409 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -176,7 +176,6 @@ xfs_read(
 {
 	struct file		*file = iocb->ki_filp;
 	struct inode		*inode = file->f_mapping->host;
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	size_t			size = 0;
 	ssize_t			ret = 0;
@@ -228,11 +227,11 @@ xfs_read(
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_READ;
 		int dmflags = FILP_DELAY_FLAG(file) | DM_SEM_FLAG_RD(ioflags);
+		int iolock = XFS_IOLOCK_SHARED;
 
-		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *offset, size,
-					dmflags, &locktype);
+		ret = -XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *offset, size,
+					dmflags, &iolock);
 		if (ret) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 			if (unlikely(ioflags & IO_ISDIRECT))
@@ -242,7 +241,7 @@ xfs_read(
 	}
 
 	if (unlikely(ioflags & IO_ISDIRECT)) {
-		if (VN_CACHED(vp))
+		if (inode->i_mapping->nrpages)
 			ret = xfs_flushinval_pages(ip, (*offset & PAGE_CACHE_MASK),
 						    -1, FI_REMAPF_LOCKED);
 		mutex_unlock(&inode->i_mutex);
@@ -276,7 +275,6 @@ xfs_splice_read(
 	int			flags,
 	int			ioflags)
 {
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	ssize_t			ret;
 
@@ -287,11 +285,11 @@ xfs_splice_read(
 	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_READ;
+		int iolock = XFS_IOLOCK_SHARED;
 		int error;
 
-		error = XFS_SEND_DATA(mp, DM_EVENT_READ, vp, *ppos, count,
-					FILP_DELAY_FLAG(infilp), &locktype);
+		error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip, *ppos, count,
+					FILP_DELAY_FLAG(infilp), &iolock);
 		if (error) {
 			xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 			return -error;
@@ -317,7 +315,6 @@ xfs_splice_write(
 	int			flags,
 	int			ioflags)
 {
-	bhv_vnode_t		*vp = XFS_ITOV(ip);
 	xfs_mount_t		*mp = ip->i_mount;
 	ssize_t			ret;
 	struct inode		*inode = outfilp->f_mapping->host;
@@ -330,11 +327,11 @@ xfs_splice_write(
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
 
 	if (DM_EVENT_ENABLED(ip, DM_EVENT_WRITE) && !(ioflags & IO_INVIS)) {
-		bhv_vrwlock_t locktype = VRWLOCK_WRITE;
+		int iolock = XFS_IOLOCK_EXCL;
 		int error;
 
-		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, vp, *ppos, count,
-					FILP_DELAY_FLAG(outfilp), &locktype);
+		error = XFS_SEND_DATA(mp, DM_EVENT_WRITE, ip, *ppos, count,
+					FILP_DELAY_FLAG(outfilp), &iolock);
 		if (error) {
 			xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 			return -error;
@@ -573,14 +570,12 @@ xfs_write(
 	struct file		*file = iocb->ki_filp;
 	struct address_space	*mapping = file->f_mapping;
 	struct inode		*inode = mapping->host;
-	bhv_vnode_t		*vp = XFS_ITOV(xip);
 	unsigned long		segs = nsegs;
 	xfs_mount_t		*mp;
 	ssize_t			ret = 0, error = 0;
 	xfs_fsize_t		isize, new_size;
 	int			iolock;
 	int			eventsent = 0;
-	bhv_vrwlock_t		locktype;
 	size_t			ocount = 0, count;
 	loff_t			pos;
 	int			need_i_mutex;
@@ -607,11 +602,9 @@ xfs_write(
 relock:
 	if (ioflags & IO_ISDIRECT) {
 		iolock = XFS_IOLOCK_SHARED;
-		locktype = VRWLOCK_WRITE_DIRECT;
 		need_i_mutex = 0;
 	} else {
 		iolock = XFS_IOLOCK_EXCL;
-		locktype = VRWLOCK_WRITE;
 		need_i_mutex = 1;
 		mutex_lock(&inode->i_mutex);
 	}
@@ -634,9 +627,8 @@ start:
 			dmflags |= DM_FLAGS_IMUX;
 
 		xfs_iunlock(xip, XFS_ILOCK_EXCL);
-		error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, vp,
-				      pos, count,
-				      dmflags, &locktype);
+		error = XFS_SEND_DATA(xip->i_mount, DM_EVENT_WRITE, xip,
+				      pos, count, dmflags, &iolock);
 		if (error) {
 			goto out_unlock_internal;
 		}
@@ -664,10 +656,9 @@ start:
 			return XFS_ERROR(-EINVAL);
 		}
 
-		if (!need_i_mutex && (VN_CACHED(vp) || pos > xip->i_size)) {
+		if (!need_i_mutex && (mapping->nrpages || pos > xip->i_size)) {
 			xfs_iunlock(xip, XFS_ILOCK_EXCL|iolock);
 			iolock = XFS_IOLOCK_EXCL;
-			locktype = VRWLOCK_WRITE;
 			need_i_mutex = 1;
 			mutex_lock(&inode->i_mutex);
 			xfs_ilock(xip, XFS_ILOCK_EXCL|iolock);
@@ -727,7 +718,7 @@ retry:
 	current->backing_dev_info = mapping->backing_dev_info;
 
 	if ((ioflags & IO_ISDIRECT)) {
-		if (VN_CACHED(vp)) {
+		if (mapping->nrpages) {
 			WARN_ON(need_i_mutex == 0);
 			xfs_inval_cached_trace(xip, pos, -1,
 					(pos & PAGE_CACHE_MASK), -1);
@@ -744,7 +735,6 @@ retry:
 			mutex_unlock(&inode->i_mutex);
 
 			iolock = XFS_IOLOCK_SHARED;
-			locktype = VRWLOCK_WRITE_DIRECT;
 			need_i_mutex = 0;
 		}
 
@@ -781,15 +771,15 @@ retry:
 
 	if (ret == -ENOSPC &&
 	    DM_EVENT_ENABLED(xip, DM_EVENT_NOSPACE) && !(ioflags & IO_INVIS)) {
-		xfs_rwunlock(xip, locktype);
+		xfs_iunlock(xip, iolock);
 		if (need_i_mutex)
 			mutex_unlock(&inode->i_mutex);
-		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, vp,
-				DM_RIGHT_NULL, vp, DM_RIGHT_NULL, NULL, NULL,
+		error = XFS_SEND_NAMESP(xip->i_mount, DM_EVENT_NOSPACE, xip,
+				DM_RIGHT_NULL, xip, DM_RIGHT_NULL, NULL, NULL,
 				0, 0, 0); /* Delay flag intentionally  unused */
 		if (need_i_mutex)
 			mutex_lock(&inode->i_mutex);
-		xfs_rwlock(xip, locktype);
+		xfs_ilock(xip, iolock);
 		if (error)
 			goto out_unlock_internal;
 		pos = xip->i_size;
@@ -817,7 +807,8 @@ retry:
 	/* Handle various SYNC-type writes */
 	if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) {
 		int error2;
-		xfs_rwunlock(xip, locktype);
+
+		xfs_iunlock(xip, iolock);
 		if (need_i_mutex)
 			mutex_unlock(&inode->i_mutex);
 		error2 = sync_page_range(inode, mapping, pos, ret);
@@ -825,7 +816,7 @@ retry:
 			error = error2;
 		if (need_i_mutex)
 			mutex_lock(&inode->i_mutex);
-		xfs_rwlock(xip, locktype);
+		xfs_ilock(xip, iolock);
 		error2 = xfs_write_sync_logforce(mp, xip);
 		if (!error)
 			error = error2;
@@ -846,7 +837,7 @@ retry:
 			xip->i_d.di_size = xip->i_size;
 		xfs_iunlock(xip, XFS_ILOCK_EXCL);
 	}
-	xfs_rwunlock(xip, locktype);
+	xfs_iunlock(xip, iolock);
  out_unlock_mutex:
 	if (need_i_mutex)
 		mutex_unlock(&inode->i_mutex);
@@ -884,28 +875,23 @@ xfs_bdstrat_cb(struct xfs_buf *bp)
 }
 
 /*
- * Wrapper around bdstrat so that we can stop data
- * from going to disk in case we are shutting down the filesystem.
- * Typically user data goes thru this path; one of the exceptions
- * is the superblock.
+ * Wrapper around bdstrat so that we can stop data from going to disk in case
+ * we are shutting down the filesystem.  Typically user data goes thru this
+ * path; one of the exceptions is the superblock.
  */
-int
+void
 xfsbdstrat(
 	struct xfs_mount	*mp,
 	struct xfs_buf		*bp)
 {
 	ASSERT(mp);
 	if (!XFS_FORCED_SHUTDOWN(mp)) {
-		/* Grio redirection would go here
-		 * if (XFS_BUF_IS_GRIO(bp)) {
-		 */
-
 		xfs_buf_iorequest(bp);
-		return 0;
+		return;
 	}
 
 	xfs_buftrace("XFSBDSTRAT IOERROR", bp);
-	return (xfs_bioerror_relse(bp));
+	xfs_bioerror_relse(bp);
 }
 
 /*
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h
index e200253139c..e1d498b4ba7 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.h
+++ b/fs/xfs/linux-2.6/xfs_lrw.h
@@ -68,7 +68,8 @@ extern void xfs_inval_cached_trace(struct xfs_inode *,
 #define xfs_inval_cached_trace(ip, offset, len, first, last)
 #endif
 
-extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
+/* errors from xfsbdstrat() must be extracted from the buffer */
+extern void 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 *);
 
diff --git a/fs/xfs/linux-2.6/xfs_stats.h b/fs/xfs/linux-2.6/xfs_stats.h
index 8ba7a2fa6c1..afd0b0d5fdb 100644
--- a/fs/xfs/linux-2.6/xfs_stats.h
+++ b/fs/xfs/linux-2.6/xfs_stats.h
@@ -144,8 +144,8 @@ extern void xfs_cleanup_procfs(void);
 # define XFS_STATS_DEC(count)
 # define XFS_STATS_ADD(count, inc)
 
-static __inline void xfs_init_procfs(void) { };
-static __inline void xfs_cleanup_procfs(void) { };
+static inline void xfs_init_procfs(void) { };
+static inline void xfs_cleanup_procfs(void) { };
 
 #endif	/* !CONFIG_PROC_FS */
 
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 8831d951879..865eb708aa9 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -896,7 +896,8 @@ xfs_fs_write_inode(
 	struct inode		*inode,
 	int			sync)
 {
-	int			error = 0, flags = FLUSH_INODE;
+	int			error = 0;
+	int			flags = 0;
 
 	xfs_itrace_entry(XFS_I(inode));
 	if (sync) {
@@ -934,7 +935,7 @@ xfs_fs_clear_inode(
 		xfs_inactive(ip);
 		xfs_iflags_clear(ip, XFS_IMODIFIED);
 		if (xfs_reclaim(ip))
-			panic("%s: cannot reclaim 0x%p\n", __FUNCTION__, inode);
+			panic("%s: cannot reclaim 0x%p\n", __func__, inode);
 	}
 
 	ASSERT(XFS_I(inode) == NULL);
@@ -1027,8 +1028,7 @@ xfs_sync_worker(
 	int		error;
 
 	if (!(mp->m_flags & XFS_MOUNT_RDONLY))
-		error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR |
-				     SYNC_REFCACHE | SYNC_SUPER);
+		error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR);
 	mp->m_sync_seq++;
 	wake_up(&mp->m_wait_single_sync_task);
 }
@@ -1306,7 +1306,7 @@ xfs_fs_fill_super(
 	void			*data,
 	int			silent)
 {
-	struct inode		*rootvp;
+	struct inode		*root;
 	struct xfs_mount	*mp = NULL;
 	struct xfs_mount_args	*args = xfs_args_allocate(sb, silent);
 	int			error;
@@ -1344,19 +1344,18 @@ xfs_fs_fill_super(
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
-	rootvp = igrab(mp->m_rootip->i_vnode);
-	if (!rootvp) {
+	root = igrab(mp->m_rootip->i_vnode);
+	if (!root) {
 		error = ENOENT;
 		goto fail_unmount;
 	}
-
-	sb->s_root = d_alloc_root(vn_to_inode(rootvp));
-	if (!sb->s_root) {
-		error = ENOMEM;
+	if (is_bad_inode(root)) {
+		error = EINVAL;
 		goto fail_vnrele;
 	}
-	if (is_bad_inode(sb->s_root->d_inode)) {
-		error = EINVAL;
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		error = ENOMEM;
 		goto fail_vnrele;
 	}
 
@@ -1378,7 +1377,7 @@ fail_vnrele:
 		dput(sb->s_root);
 		sb->s_root = NULL;
 	} else {
-		VN_RELE(rootvp);
+		iput(root);
 	}
 
 fail_unmount:
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index 3efcf45b14a..3efb7c6d330 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -50,13 +50,7 @@ extern void xfs_qm_exit(void);
 # define set_posix_acl_flag(sb)	do { } while (0)
 #endif
 
-#ifdef CONFIG_XFS_SECURITY
-# define XFS_SECURITY_STRING	"security attributes, "
-# define ENOSECURITY		0
-#else
-# define XFS_SECURITY_STRING
-# define ENOSECURITY		EOPNOTSUPP
-#endif
+#define XFS_SECURITY_STRING	"security attributes, "
 
 #ifdef CONFIG_XFS_RT
 # define XFS_REALTIME_STRING	"realtime, "
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 4da03a4e352..7e60c7776b1 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -49,7 +49,6 @@ typedef struct bhv_vfs_sync_work {
 #define SYNC_REFCACHE		0x0040  /* prune some of the nfs ref cache */
 #define SYNC_REMOUNT		0x0080  /* remount readonly, no dummy LRs */
 #define SYNC_IOWAIT		0x0100  /* wait for all I/O to complete */
-#define SYNC_SUPER		0x0200  /* flush superblock to disk */
 
 /*
  * When remounting a filesystem read-only or freezing the filesystem,
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index b5ea418693b..8b4d63ce869 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -23,8 +23,6 @@ struct bhv_vattr;
 struct xfs_iomap;
 struct attrlist_cursor_kern;
 
-typedef struct dentry	bhv_vname_t;
-typedef __u64		bhv_vnumber_t;
 typedef struct inode	bhv_vnode_t;
 
 #define VN_ISLNK(vp)	S_ISLNK((vp)->i_mode)
@@ -46,18 +44,6 @@ static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
 }
 
 /*
- * Values for the vop_rwlock/rwunlock flags parameter.
- */
-typedef enum bhv_vrwlock {
-	VRWLOCK_NONE,
-	VRWLOCK_READ,
-	VRWLOCK_WRITE,
-	VRWLOCK_WRITE_DIRECT,
-	VRWLOCK_TRY_READ,
-	VRWLOCK_TRY_WRITE
-} bhv_vrwlock_t;
-
-/*
  * Return values for xfs_inactive.  A return value of
  * VN_INACTIVE_NOCACHE implies that the file system behavior
  * has disassociated its state and bhv_desc_t from the vnode.
@@ -73,12 +59,9 @@ typedef enum bhv_vrwlock {
 #define IO_INVIS	0x00020		/* don't update inode timestamps */
 
 /*
- * Flags for vop_iflush call
+ * Flags for xfs_inode_flush
  */
 #define FLUSH_SYNC		1	/* wait for flush to complete	*/
-#define FLUSH_INODE		2	/* flush the inode itself	*/
-#define FLUSH_LOG		4	/* force the last log entry for
-					 * this inode out to disk	*/
 
 /*
  * Flush/Invalidate options for vop_toss/flush/flushinval_pages.
@@ -226,13 +209,6 @@ static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
 }
 
 /*
- * Vname handling macros.
- */
-#define VNAME(dentry)		((char *) (dentry)->d_name.name)
-#define VNAMELEN(dentry)	((dentry)->d_name.len)
-#define VNAME_TO_VNODE(dentry)	(vn_from_inode((dentry)->d_inode))
-
-/*
  * Dealing with bad inodes
  */
 static inline int VN_BAD(bhv_vnode_t *vp)
@@ -303,9 +279,9 @@ extern void xfs_itrace_hold(struct xfs_inode *, char *, int, inst_t *);
 extern void _xfs_itrace_ref(struct xfs_inode *, char *, int, inst_t *);
 extern void xfs_itrace_rele(struct xfs_inode *, char *, int, inst_t *);
 #define xfs_itrace_entry(ip)	\
-	_xfs_itrace_entry(ip, __FUNCTION__, (inst_t *)__return_address)
+	_xfs_itrace_entry(ip, __func__, (inst_t *)__return_address)
 #define xfs_itrace_exit(ip)	\
-	_xfs_itrace_exit(ip, __FUNCTION__, (inst_t *)__return_address)
+	_xfs_itrace_exit(ip, __func__, (inst_t *)__return_address)
 #define xfs_itrace_exit_tag(ip, tag)	\
 	_xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
 #define xfs_itrace_ref(ip)	\