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Diffstat (limited to 'fs/xfs/xfs_vfsops.c')
-rw-r--r--fs/xfs/xfs_vfsops.c610
1 files changed, 3 insertions, 607 deletions
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 30bacd8bb0e5..4a9a43315a86 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -58,586 +58,6 @@
 #include "xfs_utils.h"
 
 
-int __init
-xfs_init(void)
-{
-#ifdef XFS_DABUF_DEBUG
-	extern spinlock_t        xfs_dabuf_global_lock;
-	spin_lock_init(&xfs_dabuf_global_lock);
-#endif
-
-	/*
-	 * Initialize all of the zone allocators we use.
-	 */
-	xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t),
-						"xfs_log_ticket");
-	xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t),
-						"xfs_bmap_free_item");
-	xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t),
-						"xfs_btree_cur");
-	xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t),
-						"xfs_da_state");
-	xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
-	xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
-	xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans");
-	xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
-	xfs_mru_cache_init();
-	xfs_filestream_init();
-
-	/*
-	 * The size of the zone allocated buf log item is the maximum
-	 * size possible under XFS.  This wastes a little bit of memory,
-	 * but it is much faster.
-	 */
-	xfs_buf_item_zone =
-		kmem_zone_init((sizeof(xfs_buf_log_item_t) +
-				(((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) /
-				  NBWORD) * sizeof(int))),
-			       "xfs_buf_item");
-	xfs_efd_zone =
-		kmem_zone_init((sizeof(xfs_efd_log_item_t) +
-			       ((XFS_EFD_MAX_FAST_EXTENTS - 1) *
-				 sizeof(xfs_extent_t))),
-				      "xfs_efd_item");
-	xfs_efi_zone =
-		kmem_zone_init((sizeof(xfs_efi_log_item_t) +
-			       ((XFS_EFI_MAX_FAST_EXTENTS - 1) *
-				 sizeof(xfs_extent_t))),
-				      "xfs_efi_item");
-
-	/*
-	 * These zones warrant special memory allocator hints
-	 */
-	xfs_inode_zone =
-		kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode",
-					KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
-					KM_ZONE_SPREAD, NULL);
-	xfs_ili_zone =
-		kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
-					KM_ZONE_SPREAD, NULL);
-
-	/*
-	 * Allocate global trace buffers.
-	 */
-#ifdef XFS_ALLOC_TRACE
-	xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMAP_TRACE
-	xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMBT_TRACE
-	xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_ATTR_TRACE
-	xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_DIR2_TRACE
-	xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_SLEEP);
-#endif
-
-	xfs_dir_startup();
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
-	xfs_error_test_init();
-#endif /* DEBUG || INDUCE_IO_ERROR */
-
-	xfs_init_procfs();
-	xfs_sysctl_register();
-	return 0;
-}
-
-void __exit
-xfs_cleanup(void)
-{
-	extern kmem_zone_t	*xfs_inode_zone;
-	extern kmem_zone_t	*xfs_efd_zone;
-	extern kmem_zone_t	*xfs_efi_zone;
-
-	xfs_cleanup_procfs();
-	xfs_sysctl_unregister();
-	xfs_filestream_uninit();
-	xfs_mru_cache_uninit();
-	xfs_acl_zone_destroy(xfs_acl_zone);
-
-#ifdef XFS_DIR2_TRACE
-	ktrace_free(xfs_dir2_trace_buf);
-#endif
-#ifdef XFS_ATTR_TRACE
-	ktrace_free(xfs_attr_trace_buf);
-#endif
-#ifdef XFS_BMBT_TRACE
-	ktrace_free(xfs_bmbt_trace_buf);
-#endif
-#ifdef XFS_BMAP_TRACE
-	ktrace_free(xfs_bmap_trace_buf);
-#endif
-#ifdef XFS_ALLOC_TRACE
-	ktrace_free(xfs_alloc_trace_buf);
-#endif
-
-	kmem_zone_destroy(xfs_bmap_free_item_zone);
-	kmem_zone_destroy(xfs_btree_cur_zone);
-	kmem_zone_destroy(xfs_inode_zone);
-	kmem_zone_destroy(xfs_trans_zone);
-	kmem_zone_destroy(xfs_da_state_zone);
-	kmem_zone_destroy(xfs_dabuf_zone);
-	kmem_zone_destroy(xfs_buf_item_zone);
-	kmem_zone_destroy(xfs_efd_zone);
-	kmem_zone_destroy(xfs_efi_zone);
-	kmem_zone_destroy(xfs_ifork_zone);
-	kmem_zone_destroy(xfs_ili_zone);
-	kmem_zone_destroy(xfs_log_ticket_zone);
-}
-
-/*
- * xfs_start_flags
- *
- * This function fills in xfs_mount_t fields based on mount args.
- * Note: the superblock has _not_ yet been read in.
- */
-STATIC int
-xfs_start_flags(
-	struct xfs_mount_args	*ap,
-	struct xfs_mount	*mp)
-{
-	/* Values are in BBs */
-	if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
-		/*
-		 * At this point the superblock has not been read
-		 * in, therefore we do not know the block size.
-		 * Before the mount call ends we will convert
-		 * these to FSBs.
-		 */
-		mp->m_dalign = ap->sunit;
-		mp->m_swidth = ap->swidth;
-	}
-
-	if (ap->logbufs != -1 &&
-	    ap->logbufs != 0 &&
-	    (ap->logbufs < XLOG_MIN_ICLOGS ||
-	     ap->logbufs > XLOG_MAX_ICLOGS)) {
-		cmn_err(CE_WARN,
-			"XFS: invalid logbufs value: %d [not %d-%d]",
-			ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
-		return XFS_ERROR(EINVAL);
-	}
-	mp->m_logbufs = ap->logbufs;
-	if (ap->logbufsize != -1 &&
-	    ap->logbufsize !=  0 &&
-	    (ap->logbufsize < XLOG_MIN_RECORD_BSIZE ||
-	     ap->logbufsize > XLOG_MAX_RECORD_BSIZE ||
-	     !is_power_of_2(ap->logbufsize))) {
-		cmn_err(CE_WARN,
-	"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
-			ap->logbufsize);
-		return XFS_ERROR(EINVAL);
-	}
-	mp->m_logbsize = ap->logbufsize;
-	mp->m_fsname_len = strlen(ap->fsname) + 1;
-	mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP);
-	strcpy(mp->m_fsname, ap->fsname);
-	if (ap->rtname[0]) {
-		mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP);
-		strcpy(mp->m_rtname, ap->rtname);
-	}
-	if (ap->logname[0]) {
-		mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP);
-		strcpy(mp->m_logname, ap->logname);
-	}
-
-	if (ap->flags & XFSMNT_WSYNC)
-		mp->m_flags |= XFS_MOUNT_WSYNC;
-#if XFS_BIG_INUMS
-	if (ap->flags & XFSMNT_INO64) {
-		mp->m_flags |= XFS_MOUNT_INO64;
-		mp->m_inoadd = XFS_INO64_OFFSET;
-	}
-#endif
-	if (ap->flags & XFSMNT_RETERR)
-		mp->m_flags |= XFS_MOUNT_RETERR;
-	if (ap->flags & XFSMNT_NOALIGN)
-		mp->m_flags |= XFS_MOUNT_NOALIGN;
-	if (ap->flags & XFSMNT_SWALLOC)
-		mp->m_flags |= XFS_MOUNT_SWALLOC;
-	if (ap->flags & XFSMNT_OSYNCISOSYNC)
-		mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
-	if (ap->flags & XFSMNT_32BITINODES)
-		mp->m_flags |= XFS_MOUNT_32BITINODES;
-
-	if (ap->flags & XFSMNT_IOSIZE) {
-		if (ap->iosizelog > XFS_MAX_IO_LOG ||
-		    ap->iosizelog < XFS_MIN_IO_LOG) {
-			cmn_err(CE_WARN,
-		"XFS: invalid log iosize: %d [not %d-%d]",
-				ap->iosizelog, XFS_MIN_IO_LOG,
-				XFS_MAX_IO_LOG);
-			return XFS_ERROR(EINVAL);
-		}
-
-		mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
-		mp->m_readio_log = mp->m_writeio_log = ap->iosizelog;
-	}
-
-	if (ap->flags & XFSMNT_IKEEP)
-		mp->m_flags |= XFS_MOUNT_IKEEP;
-	if (ap->flags & XFSMNT_DIRSYNC)
-		mp->m_flags |= XFS_MOUNT_DIRSYNC;
-	if (ap->flags & XFSMNT_ATTR2)
-		mp->m_flags |= XFS_MOUNT_ATTR2;
-
-	if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE)
-		mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
-
-	/*
-	 * no recovery flag requires a read-only mount
-	 */
-	if (ap->flags & XFSMNT_NORECOVERY) {
-		if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
-			cmn_err(CE_WARN,
-	"XFS: tried to mount a FS read-write without recovery!");
-			return XFS_ERROR(EINVAL);
-		}
-		mp->m_flags |= XFS_MOUNT_NORECOVERY;
-	}
-
-	if (ap->flags & XFSMNT_NOUUID)
-		mp->m_flags |= XFS_MOUNT_NOUUID;
-	if (ap->flags & XFSMNT_BARRIER)
-		mp->m_flags |= XFS_MOUNT_BARRIER;
-	else
-		mp->m_flags &= ~XFS_MOUNT_BARRIER;
-
-	if (ap->flags2 & XFSMNT2_FILESTREAMS)
-		mp->m_flags |= XFS_MOUNT_FILESTREAMS;
-
-	if (ap->flags & XFSMNT_DMAPI)
-		mp->m_flags |= XFS_MOUNT_DMAPI;
-	return 0;
-}
-
-/*
- * This function fills in xfs_mount_t fields based on mount args.
- * Note: the superblock _has_ now been read in.
- */
-STATIC int
-xfs_finish_flags(
-	struct xfs_mount_args	*ap,
-	struct xfs_mount	*mp)
-{
-	int			ronly = (mp->m_flags & XFS_MOUNT_RDONLY);
-
-	/* Fail a mount where the logbuf is smaller then the log stripe */
-	if (xfs_sb_version_haslogv2(&mp->m_sb)) {
-		if ((ap->logbufsize <= 0) &&
-		    (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) {
-			mp->m_logbsize = mp->m_sb.sb_logsunit;
-		} else if (ap->logbufsize > 0 &&
-			   ap->logbufsize < mp->m_sb.sb_logsunit) {
-			cmn_err(CE_WARN,
-	"XFS: logbuf size must be greater than or equal to log stripe size");
-			return XFS_ERROR(EINVAL);
-		}
-	} else {
-		/* Fail a mount if the logbuf is larger than 32K */
-		if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) {
-			cmn_err(CE_WARN,
-	"XFS: logbuf size for version 1 logs must be 16K or 32K");
-			return XFS_ERROR(EINVAL);
-		}
-	}
-
-	if (xfs_sb_version_hasattr2(&mp->m_sb))
-		mp->m_flags |= XFS_MOUNT_ATTR2;
-
-	/*
-	 * prohibit r/w mounts of read-only filesystems
-	 */
-	if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) {
-		cmn_err(CE_WARN,
-	"XFS: cannot mount a read-only filesystem as read-write");
-		return XFS_ERROR(EROFS);
-	}
-
-	/*
-	 * check for shared mount.
-	 */
-	if (ap->flags & XFSMNT_SHARED) {
-		if (!xfs_sb_version_hasshared(&mp->m_sb))
-			return XFS_ERROR(EINVAL);
-
-		/*
-		 * For IRIX 6.5, shared mounts must have the shared
-		 * version bit set, have the persistent readonly
-		 * field set, must be version 0 and can only be mounted
-		 * read-only.
-		 */
-		if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) ||
-		     (mp->m_sb.sb_shared_vn != 0))
-			return XFS_ERROR(EINVAL);
-
-		mp->m_flags |= XFS_MOUNT_SHARED;
-
-		/*
-		 * Shared XFS V0 can't deal with DMI.  Return EINVAL.
-		 */
-		if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI))
-			return XFS_ERROR(EINVAL);
-	}
-
-	if (ap->flags & XFSMNT_UQUOTA) {
-		mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_UQUOTAENF)
-			mp->m_qflags |= XFS_UQUOTA_ENFD;
-	}
-
-	if (ap->flags & XFSMNT_GQUOTA) {
-		mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_GQUOTAENF)
-			mp->m_qflags |= XFS_OQUOTA_ENFD;
-	} else if (ap->flags & XFSMNT_PQUOTA) {
-		mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
-		if (ap->flags & XFSMNT_PQUOTAENF)
-			mp->m_qflags |= XFS_OQUOTA_ENFD;
-	}
-
-	return 0;
-}
-
-/*
- * xfs_mount
- *
- * The file system configurations are:
- *	(1) device (partition) with data and internal log
- *	(2) logical volume with data and log subvolumes.
- *	(3) logical volume with data, log, and realtime subvolumes.
- *
- * We only have to handle opening the log and realtime volumes here if
- * they are present.  The data subvolume has already been opened by
- * get_sb_bdev() and is stored in vfsp->vfs_super->s_bdev.
- */
-int
-xfs_mount(
-	struct xfs_mount	*mp,
-	struct xfs_mount_args	*args,
-	cred_t			*credp)
-{
-	struct block_device	*ddev, *logdev, *rtdev;
-	int			flags = 0, error;
-
-	ddev = mp->m_super->s_bdev;
-	logdev = rtdev = NULL;
-
-	error = xfs_dmops_get(mp, args);
-	if (error)
-		return error;
-	error = xfs_qmops_get(mp, args);
-	if (error)
-		return error;
-
-	if (args->flags & XFSMNT_QUIET)
-		flags |= XFS_MFSI_QUIET;
-
-	/*
-	 * Open real time and log devices - order is important.
-	 */
-	if (args->logname[0]) {
-		error = xfs_blkdev_get(mp, args->logname, &logdev);
-		if (error)
-			return error;
-	}
-	if (args->rtname[0]) {
-		error = xfs_blkdev_get(mp, args->rtname, &rtdev);
-		if (error) {
-			xfs_blkdev_put(logdev);
-			return error;
-		}
-
-		if (rtdev == ddev || rtdev == logdev) {
-			cmn_err(CE_WARN,
-	"XFS: Cannot mount filesystem with identical rtdev and ddev/logdev.");
-			xfs_blkdev_put(logdev);
-			xfs_blkdev_put(rtdev);
-			return EINVAL;
-		}
-	}
-
-	/*
-	 * Setup xfs_mount buffer target pointers
-	 */
-	error = ENOMEM;
-	mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0);
-	if (!mp->m_ddev_targp) {
-		xfs_blkdev_put(logdev);
-		xfs_blkdev_put(rtdev);
-		return error;
-	}
-	if (rtdev) {
-		mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1);
-		if (!mp->m_rtdev_targp) {
-			xfs_blkdev_put(logdev);
-			xfs_blkdev_put(rtdev);
-			goto error0;
-		}
-	}
-	mp->m_logdev_targp = (logdev && logdev != ddev) ?
-				xfs_alloc_buftarg(logdev, 1) : mp->m_ddev_targp;
-	if (!mp->m_logdev_targp) {
-		xfs_blkdev_put(logdev);
-		xfs_blkdev_put(rtdev);
-		goto error0;
-	}
-
-	/*
-	 * Setup flags based on mount(2) options and then the superblock
-	 */
-	error = xfs_start_flags(args, mp);
-	if (error)
-		goto error1;
-	error = xfs_readsb(mp, flags);
-	if (error)
-		goto error1;
-	error = xfs_finish_flags(args, mp);
-	if (error)
-		goto error2;
-
-	/*
-	 * Setup xfs_mount buffer target pointers based on superblock
-	 */
-	error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize,
-				    mp->m_sb.sb_sectsize);
-	if (!error && logdev && logdev != ddev) {
-		unsigned int	log_sector_size = BBSIZE;
-
-		if (xfs_sb_version_hassector(&mp->m_sb))
-			log_sector_size = mp->m_sb.sb_logsectsize;
-		error = xfs_setsize_buftarg(mp->m_logdev_targp,
-					    mp->m_sb.sb_blocksize,
-					    log_sector_size);
-	}
-	if (!error && rtdev)
-		error = xfs_setsize_buftarg(mp->m_rtdev_targp,
-					    mp->m_sb.sb_blocksize,
-					    mp->m_sb.sb_sectsize);
-	if (error)
-		goto error2;
-
-	if (mp->m_flags & XFS_MOUNT_BARRIER)
-		xfs_mountfs_check_barriers(mp);
-
-	if ((error = xfs_filestream_mount(mp)))
-		goto error2;
-
-	error = xfs_mountfs(mp, flags);
-	if (error)
-		goto error2;
-
-	XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname);
-
-	return 0;
-
-error2:
-	if (mp->m_sb_bp)
-		xfs_freesb(mp);
-error1:
-	xfs_binval(mp->m_ddev_targp);
-	if (logdev && logdev != ddev)
-		xfs_binval(mp->m_logdev_targp);
-	if (rtdev)
-		xfs_binval(mp->m_rtdev_targp);
-error0:
-	xfs_unmountfs_close(mp, credp);
-	xfs_qmops_put(mp);
-	xfs_dmops_put(mp);
-	return error;
-}
-
-int
-xfs_unmount(
-	xfs_mount_t	*mp,
-	int		flags,
-	cred_t		*credp)
-{
-	xfs_inode_t	*rip;
-	bhv_vnode_t	*rvp;
-	int		unmount_event_wanted = 0;
-	int		unmount_event_flags = 0;
-	int		xfs_unmountfs_needed = 0;
-	int		error;
-
-	rip = mp->m_rootip;
-	rvp = XFS_ITOV(rip);
-
-#ifdef HAVE_DMAPI
-	if (mp->m_flags & XFS_MOUNT_DMAPI) {
-		error = XFS_SEND_PREUNMOUNT(mp,
-				rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL,
-				NULL, NULL, 0, 0,
-				(mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))?
-					0:DM_FLAGS_UNWANTED);
-			if (error)
-				return XFS_ERROR(error);
-		unmount_event_wanted = 1;
-		unmount_event_flags = (mp->m_dmevmask & (1<<DM_EVENT_UNMOUNT))?
-					0 : DM_FLAGS_UNWANTED;
-	}
-#endif
-
-	/*
-	 * Blow away any referenced inode in the filestreams cache.
-	 * This can and will cause log traffic as inodes go inactive
-	 * here.
-	 */
-	xfs_filestream_unmount(mp);
-
-	XFS_bflush(mp->m_ddev_targp);
-	error = xfs_unmount_flush(mp, 0);
-	if (error)
-		goto out;
-
-	ASSERT(vn_count(rvp) == 1);
-
-	/*
-	 * Drop the reference count
-	 */
-	IRELE(rip);
-
-	/*
-	 * If we're forcing a shutdown, typically because of a media error,
-	 * we want to make sure we invalidate dirty pages that belong to
-	 * referenced vnodes as well.
-	 */
-	if (XFS_FORCED_SHUTDOWN(mp)) {
-		error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE);
-		ASSERT(error != EFSCORRUPTED);
-	}
-	xfs_unmountfs_needed = 1;
-
-out:
-	/*	Send DMAPI event, if required.
-	 *	Then do xfs_unmountfs() if needed.
-	 *	Then return error (or zero).
-	 */
-	if (unmount_event_wanted) {
-		/* Note: mp structure must still exist for
-		 * XFS_SEND_UNMOUNT() call.
-		 */
-		XFS_SEND_UNMOUNT(mp, error == 0 ? rip : NULL,
-			DM_RIGHT_NULL, 0, error, unmount_event_flags);
-	}
-	if (xfs_unmountfs_needed) {
-		/*
-		 * Call common unmount function to flush to disk
-		 * and free the super block buffer & mount structures.
-		 */
-		xfs_unmountfs(mp, credp);
-		xfs_qmops_put(mp);
-		xfs_dmops_put(mp);
-		kmem_free(mp, sizeof(xfs_mount_t));
-	}
-
-	return XFS_ERROR(error);
-}
-
 STATIC void
 xfs_quiesce_fs(
 	xfs_mount_t		*mp)
@@ -694,30 +114,6 @@ xfs_attr_quiesce(
 	xfs_unmountfs_writesb(mp);
 }
 
-int
-xfs_mntupdate(
-	struct xfs_mount		*mp,
-	int				*flags,
-	struct xfs_mount_args		*args)
-{
-	if (!(*flags & MS_RDONLY)) {			/* rw/ro -> rw */
-		if (mp->m_flags & XFS_MOUNT_RDONLY)
-			mp->m_flags &= ~XFS_MOUNT_RDONLY;
-		if (args->flags & XFSMNT_BARRIER) {
-			mp->m_flags |= XFS_MOUNT_BARRIER;
-			xfs_mountfs_check_barriers(mp);
-		} else {
-			mp->m_flags &= ~XFS_MOUNT_BARRIER;
-		}
-	} else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {	/* rw -> ro */
-		xfs_filestream_flush(mp);
-		xfs_sync(mp, SYNC_DATA_QUIESCE);
-		xfs_attr_quiesce(mp);
-		mp->m_flags |= XFS_MOUNT_RDONLY;
-	}
-	return 0;
-}
-
 /*
  * xfs_unmount_flush implements a set of flush operation on special
  * inodes, which are needed as a separate set of operations so that
@@ -1048,7 +444,7 @@ xfs_sync_inodes(
 
 		if (XFS_FORCED_SHUTDOWN(mp) && !(flags & SYNC_CLOSE)) {
 			XFS_MOUNT_IUNLOCK(mp);
-			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			kmem_free(ipointer);
 			return 0;
 		}
 
@@ -1194,7 +590,7 @@ xfs_sync_inodes(
 			}
 			XFS_MOUNT_IUNLOCK(mp);
 			ASSERT(ipointer_in == B_FALSE);
-			kmem_free(ipointer, sizeof(xfs_iptr_t));
+			kmem_free(ipointer);
 			return XFS_ERROR(error);
 		}
 
@@ -1224,7 +620,7 @@ xfs_sync_inodes(
 
 	ASSERT(ipointer_in == B_FALSE);
 
-	kmem_free(ipointer, sizeof(xfs_iptr_t));
+	kmem_free(ipointer);
 	return XFS_ERROR(last_error);
 }