1 files changed, 549 insertions, 23 deletions

diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 8cb63c60c048..21dfc9da235e 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -41,6 +41,7 @@
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
+#include "xfs_fsops.h"
 #include "xfs_rw.h"
 #include "xfs_acl.h"
 #include "xfs_attr.h"
@@ -49,6 +50,8 @@
 #include "xfs_vnodeops.h"
 #include "xfs_vfsops.h"
 #include "xfs_version.h"
+#include "xfs_log_priv.h"
+#include "xfs_trans_priv.h"
 
 #include <linux/namei.h>
 #include <linux/init.h>
@@ -87,6 +90,435 @@ xfs_args_allocate(
 	return args;
 }
 
+#define MNTOPT_LOGBUFS	"logbufs"	/* number of XFS log buffers */
+#define MNTOPT_LOGBSIZE	"logbsize"	/* size of XFS log buffers */
+#define MNTOPT_LOGDEV	"logdev"	/* log device */
+#define MNTOPT_RTDEV	"rtdev"		/* realtime I/O device */
+#define MNTOPT_BIOSIZE	"biosize"	/* log2 of preferred buffered io size */
+#define MNTOPT_WSYNC	"wsync"		/* safe-mode nfs compatible mount */
+#define MNTOPT_INO64	"ino64"		/* force inodes into 64-bit range */
+#define MNTOPT_NOALIGN	"noalign"	/* turn off stripe alignment */
+#define MNTOPT_SWALLOC	"swalloc"	/* turn on stripe width allocation */
+#define MNTOPT_SUNIT	"sunit"		/* data volume stripe unit */
+#define MNTOPT_SWIDTH	"swidth"	/* data volume stripe width */
+#define MNTOPT_NOUUID	"nouuid"	/* ignore filesystem UUID */
+#define MNTOPT_MTPT	"mtpt"		/* filesystem mount point */
+#define MNTOPT_GRPID	"grpid"		/* group-ID from parent directory */
+#define MNTOPT_NOGRPID	"nogrpid"	/* group-ID from current process */
+#define MNTOPT_BSDGROUPS    "bsdgroups"    /* group-ID from parent directory */
+#define MNTOPT_SYSVGROUPS   "sysvgroups"   /* group-ID from current process */
+#define MNTOPT_ALLOCSIZE    "allocsize"    /* preferred allocation size */
+#define MNTOPT_NORECOVERY   "norecovery"   /* don't run XFS recovery */
+#define MNTOPT_BARRIER	"barrier"	/* use writer barriers for log write and
+					 * unwritten extent conversion */
+#define MNTOPT_NOBARRIER "nobarrier"	/* .. disable */
+#define MNTOPT_OSYNCISOSYNC "osyncisosync" /* o_sync is REALLY o_sync */
+#define MNTOPT_64BITINODE   "inode64"	/* inodes can be allocated anywhere */
+#define MNTOPT_IKEEP	"ikeep"		/* do not free empty inode clusters */
+#define MNTOPT_NOIKEEP	"noikeep"	/* free empty inode clusters */
+#define MNTOPT_LARGEIO	   "largeio"	/* report large I/O sizes in stat() */
+#define MNTOPT_NOLARGEIO   "nolargeio"	/* do not report large I/O sizes
+					 * in stat(). */
+#define MNTOPT_ATTR2	"attr2"		/* do use attr2 attribute format */
+#define MNTOPT_NOATTR2	"noattr2"	/* do not use attr2 attribute format */
+#define MNTOPT_FILESTREAM  "filestreams" /* use filestreams allocator */
+#define MNTOPT_QUOTA	"quota"		/* disk quotas (user) */
+#define MNTOPT_NOQUOTA	"noquota"	/* no quotas */
+#define MNTOPT_USRQUOTA	"usrquota"	/* user quota enabled */
+#define MNTOPT_GRPQUOTA	"grpquota"	/* group quota enabled */
+#define MNTOPT_PRJQUOTA	"prjquota"	/* project quota enabled */
+#define MNTOPT_UQUOTA	"uquota"	/* user quota (IRIX variant) */
+#define MNTOPT_GQUOTA	"gquota"	/* group quota (IRIX variant) */
+#define MNTOPT_PQUOTA	"pquota"	/* project quota (IRIX variant) */
+#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
+#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
+#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
+#define MNTOPT_QUOTANOENF  "qnoenforce"	/* same as uqnoenforce */
+#define MNTOPT_DMAPI	"dmapi"		/* DMI enabled (DMAPI / XDSM) */
+#define MNTOPT_XDSM	"xdsm"		/* DMI enabled (DMAPI / XDSM) */
+#define MNTOPT_DMI	"dmi"		/* DMI enabled (DMAPI / XDSM) */
+
+STATIC unsigned long
+suffix_strtoul(char *s, char **endp, unsigned int base)
+{
+	int	last, shift_left_factor = 0;
+	char	*value = s;
+
+	last = strlen(value) - 1;
+	if (value[last] == 'K' || value[last] == 'k') {
+		shift_left_factor = 10;
+		value[last] = '\0';
+	}
+	if (value[last] == 'M' || value[last] == 'm') {
+		shift_left_factor = 20;
+		value[last] = '\0';
+	}
+	if (value[last] == 'G' || value[last] == 'g') {
+		shift_left_factor = 30;
+		value[last] = '\0';
+	}
+
+	return simple_strtoul((const char *)s, endp, base) << shift_left_factor;
+}
+
+STATIC int
+xfs_parseargs(
+	struct xfs_mount	*mp,
+	char			*options,
+	struct xfs_mount_args	*args,
+	int			update)
+{
+	char			*this_char, *value, *eov;
+	int			dsunit, dswidth, vol_dsunit, vol_dswidth;
+	int			iosize;
+	int			ikeep = 0;
+
+	args->flags |= XFSMNT_BARRIER;
+	args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
+
+	if (!options)
+		goto done;
+
+	iosize = dsunit = dswidth = vol_dsunit = vol_dswidth = 0;
+
+	while ((this_char = strsep(&options, ",")) != NULL) {
+		if (!*this_char)
+			continue;
+		if ((value = strchr(this_char, '=')) != NULL)
+			*value++ = 0;
+
+		if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			args->logbufs = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			args->logbufsize = suffix_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			strncpy(args->logname, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_MTPT)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			strncpy(args->mtpt, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			strncpy(args->rtname, value, MAXNAMELEN);
+		} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			iosize = simple_strtoul(value, &eov, 10);
+			args->flags |= XFSMNT_IOSIZE;
+			args->iosizelog = (uint8_t) iosize;
+		} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			iosize = suffix_strtoul(value, &eov, 10);
+			args->flags |= XFSMNT_IOSIZE;
+			args->iosizelog = ffs(iosize) - 1;
+		} else if (!strcmp(this_char, MNTOPT_GRPID) ||
+			   !strcmp(this_char, MNTOPT_BSDGROUPS)) {
+			mp->m_flags |= XFS_MOUNT_GRPID;
+		} else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
+			   !strcmp(this_char, MNTOPT_SYSVGROUPS)) {
+			mp->m_flags &= ~XFS_MOUNT_GRPID;
+		} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
+			args->flags |= XFSMNT_WSYNC;
+		} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
+			args->flags |= XFSMNT_OSYNCISOSYNC;
+		} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
+			args->flags |= XFSMNT_NORECOVERY;
+		} else if (!strcmp(this_char, MNTOPT_INO64)) {
+			args->flags |= XFSMNT_INO64;
+#if !XFS_BIG_INUMS
+			cmn_err(CE_WARN,
+				"XFS: %s option not allowed on this system",
+				this_char);
+			return EINVAL;
+#endif
+		} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
+			args->flags |= XFSMNT_NOALIGN;
+		} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
+			args->flags |= XFSMNT_SWALLOC;
+		} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			dsunit = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
+			if (!value || !*value) {
+				cmn_err(CE_WARN,
+					"XFS: %s option requires an argument",
+					this_char);
+				return EINVAL;
+			}
+			dswidth = simple_strtoul(value, &eov, 10);
+		} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
+			args->flags &= ~XFSMNT_32BITINODES;
+#if !XFS_BIG_INUMS
+			cmn_err(CE_WARN,
+				"XFS: %s option not allowed on this system",
+				this_char);
+			return EINVAL;
+#endif
+		} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
+			args->flags |= XFSMNT_NOUUID;
+		} else if (!strcmp(this_char, MNTOPT_BARRIER)) {
+			args->flags |= XFSMNT_BARRIER;
+		} else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
+			args->flags &= ~XFSMNT_BARRIER;
+		} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
+			ikeep = 1;
+			args->flags &= ~XFSMNT_IDELETE;
+		} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
+			args->flags |= XFSMNT_IDELETE;
+		} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
+			args->flags2 &= ~XFSMNT2_COMPAT_IOSIZE;
+		} else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
+			args->flags2 |= XFSMNT2_COMPAT_IOSIZE;
+		} else if (!strcmp(this_char, MNTOPT_ATTR2)) {
+			args->flags |= XFSMNT_ATTR2;
+		} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
+			args->flags &= ~XFSMNT_ATTR2;
+		} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
+			args->flags2 |= XFSMNT2_FILESTREAMS;
+		} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
+			args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
+			args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
+		} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
+			   !strcmp(this_char, MNTOPT_UQUOTA) ||
+			   !strcmp(this_char, MNTOPT_USRQUOTA)) {
+			args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
+			   !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
+			args->flags |= XFSMNT_UQUOTA;
+			args->flags &= ~XFSMNT_UQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
+			   !strcmp(this_char, MNTOPT_PRJQUOTA)) {
+			args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
+			args->flags |= XFSMNT_PQUOTA;
+			args->flags &= ~XFSMNT_PQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
+			   !strcmp(this_char, MNTOPT_GRPQUOTA)) {
+			args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
+			args->flags |= XFSMNT_GQUOTA;
+			args->flags &= ~XFSMNT_GQUOTAENF;
+		} else if (!strcmp(this_char, MNTOPT_DMAPI)) {
+			args->flags |= XFSMNT_DMAPI;
+		} else if (!strcmp(this_char, MNTOPT_XDSM)) {
+			args->flags |= XFSMNT_DMAPI;
+		} else if (!strcmp(this_char, MNTOPT_DMI)) {
+			args->flags |= XFSMNT_DMAPI;
+		} else if (!strcmp(this_char, "ihashsize")) {
+			cmn_err(CE_WARN,
+	"XFS: ihashsize no longer used, option is deprecated.");
+		} else if (!strcmp(this_char, "osyncisdsync")) {
+			/* no-op, this is now the default */
+			cmn_err(CE_WARN,
+	"XFS: osyncisdsync is now the default, option is deprecated.");
+		} else if (!strcmp(this_char, "irixsgid")) {
+			cmn_err(CE_WARN,
+	"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
+		} else {
+			cmn_err(CE_WARN,
+				"XFS: unknown mount option [%s].", this_char);
+			return EINVAL;
+		}
+	}
+
+	if (args->flags & XFSMNT_NORECOVERY) {
+		if ((mp->m_flags & XFS_MOUNT_RDONLY) == 0) {
+			cmn_err(CE_WARN,
+				"XFS: no-recovery mounts must be read-only.");
+			return EINVAL;
+		}
+	}
+
+	if ((args->flags & XFSMNT_NOALIGN) && (dsunit || dswidth)) {
+		cmn_err(CE_WARN,
+	"XFS: sunit and swidth options incompatible with the noalign option");
+		return EINVAL;
+	}
+
+	if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
+		cmn_err(CE_WARN,
+			"XFS: cannot mount with both project and group quota");
+		return EINVAL;
+	}
+
+	if ((args->flags & XFSMNT_DMAPI) && *args->mtpt == '\0') {
+		printk("XFS: %s option needs the mount point option as well\n",
+			MNTOPT_DMAPI);
+		return EINVAL;
+	}
+
+	if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
+		cmn_err(CE_WARN,
+			"XFS: sunit and swidth must be specified together");
+		return EINVAL;
+	}
+
+	if (dsunit && (dswidth % dsunit != 0)) {
+		cmn_err(CE_WARN,
+	"XFS: stripe width (%d) must be a multiple of the stripe unit (%d)",
+			dswidth, dsunit);
+		return EINVAL;
+	}
+
+	/*
+	 * Applications using DMI filesystems often expect the
+	 * inode generation number to be monotonically increasing.
+	 * If we delete inode chunks we break this assumption, so
+	 * keep unused inode chunks on disk for DMI filesystems
+	 * until we come up with a better solution.
+	 * Note that if "ikeep" or "noikeep" mount options are
+	 * supplied, then they are honored.
+	 */
+	if (!(args->flags & XFSMNT_DMAPI) && !ikeep)
+		args->flags |= XFSMNT_IDELETE;
+
+	if ((args->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
+		if (dsunit) {
+			args->sunit = dsunit;
+			args->flags |= XFSMNT_RETERR;
+		} else {
+			args->sunit = vol_dsunit;
+		}
+		dswidth ? (args->swidth = dswidth) :
+			  (args->swidth = vol_dswidth);
+	} else {
+		args->sunit = args->swidth = 0;
+	}
+
+done:
+	if (args->flags & XFSMNT_32BITINODES)
+		mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
+	if (args->flags2)
+		args->flags |= XFSMNT_FLAGS2;
+	return 0;
+}
+
+struct proc_xfs_info {
+	int	flag;
+	char	*str;
+};
+
+STATIC int
+xfs_showargs(
+	struct xfs_mount	*mp,
+	struct seq_file		*m)
+{
+	static struct proc_xfs_info xfs_info_set[] = {
+		/* the few simple ones we can get from the mount struct */
+		{ XFS_MOUNT_WSYNC,		"," MNTOPT_WSYNC },
+		{ XFS_MOUNT_INO64,		"," MNTOPT_INO64 },
+		{ XFS_MOUNT_NOALIGN,		"," MNTOPT_NOALIGN },
+		{ XFS_MOUNT_SWALLOC,		"," MNTOPT_SWALLOC },
+		{ XFS_MOUNT_NOUUID,		"," MNTOPT_NOUUID },
+		{ XFS_MOUNT_NORECOVERY,		"," MNTOPT_NORECOVERY },
+		{ XFS_MOUNT_OSYNCISOSYNC,	"," MNTOPT_OSYNCISOSYNC },
+		{ XFS_MOUNT_ATTR2,		"," MNTOPT_ATTR2 },
+		{ XFS_MOUNT_FILESTREAMS,	"," MNTOPT_FILESTREAM },
+		{ XFS_MOUNT_DMAPI,		"," MNTOPT_DMAPI },
+		{ XFS_MOUNT_GRPID,		"," MNTOPT_GRPID },
+		{ 0, NULL }
+	};
+	static struct proc_xfs_info xfs_info_unset[] = {
+		/* the few simple ones we can get from the mount struct */
+		{ XFS_MOUNT_IDELETE,		"," MNTOPT_IKEEP },
+		{ XFS_MOUNT_COMPAT_IOSIZE,	"," MNTOPT_LARGEIO },
+		{ XFS_MOUNT_BARRIER,		"," MNTOPT_NOBARRIER },
+		{ XFS_MOUNT_SMALL_INUMS,	"," MNTOPT_64BITINODE },
+		{ 0, NULL }
+	};
+	struct proc_xfs_info	*xfs_infop;
+
+	for (xfs_infop = xfs_info_set; xfs_infop->flag; xfs_infop++) {
+		if (mp->m_flags & xfs_infop->flag)
+			seq_puts(m, xfs_infop->str);
+	}
+	for (xfs_infop = xfs_info_unset; xfs_infop->flag; xfs_infop++) {
+		if (!(mp->m_flags & xfs_infop->flag))
+			seq_puts(m, xfs_infop->str);
+	}
+
+	if (mp->m_flags & XFS_MOUNT_DFLT_IOSIZE)
+		seq_printf(m, "," MNTOPT_ALLOCSIZE "=%dk",
+				(int)(1 << mp->m_writeio_log) >> 10);
+
+	if (mp->m_logbufs > 0)
+		seq_printf(m, "," MNTOPT_LOGBUFS "=%d", mp->m_logbufs);
+	if (mp->m_logbsize > 0)
+		seq_printf(m, "," MNTOPT_LOGBSIZE "=%dk", mp->m_logbsize >> 10);
+
+	if (mp->m_logname)
+		seq_printf(m, "," MNTOPT_LOGDEV "=%s", mp->m_logname);
+	if (mp->m_rtname)
+		seq_printf(m, "," MNTOPT_RTDEV "=%s", mp->m_rtname);
+
+	if (mp->m_dalign > 0)
+		seq_printf(m, "," MNTOPT_SUNIT "=%d",
+				(int)XFS_FSB_TO_BB(mp, mp->m_dalign));
+	if (mp->m_swidth > 0)
+		seq_printf(m, "," MNTOPT_SWIDTH "=%d",
+				(int)XFS_FSB_TO_BB(mp, mp->m_swidth));
+
+	if (mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD))
+		seq_puts(m, "," MNTOPT_USRQUOTA);
+	else if (mp->m_qflags & XFS_UQUOTA_ACCT)
+		seq_puts(m, "," MNTOPT_UQUOTANOENF);
+
+	if (mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
+		seq_puts(m, "," MNTOPT_PRJQUOTA);
+	else if (mp->m_qflags & XFS_PQUOTA_ACCT)
+		seq_puts(m, "," MNTOPT_PQUOTANOENF);
+
+	if (mp->m_qflags & (XFS_GQUOTA_ACCT|XFS_OQUOTA_ENFD))
+		seq_puts(m, "," MNTOPT_GRPQUOTA);
+	else if (mp->m_qflags & XFS_GQUOTA_ACCT)
+		seq_puts(m, "," MNTOPT_GQUOTANOENF);
+
+	if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
+		seq_puts(m, "," MNTOPT_NOQUOTA);
+
+	return 0;
+}
 __uint64_t
 xfs_max_file_offset(
 	unsigned int		blockshift)
@@ -137,7 +569,7 @@ xfs_set_inodeops(
 		break;
 	case S_IFLNK:
 		inode->i_op = &xfs_symlink_inode_operations;
-		if (inode->i_blocks)
+		if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
 			inode->i_mapping->a_ops = &xfs_address_space_operations;
 		break;
 	default:
@@ -174,8 +606,6 @@ xfs_revalidate_inode(
 
 	inode->i_generation = ip->i_d.di_gen;
 	i_size_write(inode, ip->i_d.di_size);
-	inode->i_blocks =
-		XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
 	inode->i_atime.tv_sec	= ip->i_d.di_atime.t_sec;
 	inode->i_atime.tv_nsec	= ip->i_d.di_atime.t_nsec;
 	inode->i_mtime.tv_sec	= ip->i_d.di_mtime.t_sec;
@@ -334,6 +764,64 @@ xfs_blkdev_issue_flush(
 	blkdev_issue_flush(buftarg->bt_bdev, NULL);
 }
 
+/*
+ * XFS AIL push thread support
+ */
+void
+xfsaild_wakeup(
+	xfs_mount_t		*mp,
+	xfs_lsn_t		threshold_lsn)
+{
+	mp->m_ail.xa_target = threshold_lsn;
+	wake_up_process(mp->m_ail.xa_task);
+}
+
+int
+xfsaild(
+	void	*data)
+{
+	xfs_mount_t	*mp = (xfs_mount_t *)data;
+	xfs_lsn_t	last_pushed_lsn = 0;
+	long		tout = 0;
+
+	while (!kthread_should_stop()) {
+		if (tout)
+			schedule_timeout_interruptible(msecs_to_jiffies(tout));
+		tout = 1000;
+
+		/* swsusp */
+		try_to_freeze();
+
+		ASSERT(mp->m_log);
+		if (XFS_FORCED_SHUTDOWN(mp))
+			continue;
+
+		tout = xfsaild_push(mp, &last_pushed_lsn);
+	}
+
+	return 0;
+}	/* xfsaild */
+
+int
+xfsaild_start(
+	xfs_mount_t	*mp)
+{
+	mp->m_ail.xa_target = 0;
+	mp->m_ail.xa_task = kthread_run(xfsaild, mp, "xfsaild");
+	if (IS_ERR(mp->m_ail.xa_task))
+		return -PTR_ERR(mp->m_ail.xa_task);
+	return 0;
+}
+
+void
+xfsaild_stop(
+	xfs_mount_t	*mp)
+{
+	kthread_stop(mp->m_ail.xa_task);
+}
+
+
+
 STATIC struct inode *
 xfs_fs_alloc_inode(
 	struct super_block	*sb)
@@ -361,7 +849,7 @@ xfs_fs_inode_init_once(
 	inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
 }
 
-STATIC int
+STATIC int __init
 xfs_init_zones(void)
 {
 	xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
@@ -410,8 +898,7 @@ xfs_fs_write_inode(
 {
 	int			error = 0, flags = FLUSH_INODE;
 
-	vn_trace_entry(XFS_I(inode), __FUNCTION__,
-			(inst_t *)__return_address);
+	xfs_itrace_entry(XFS_I(inode));
 	if (sync) {
 		filemap_fdatawait(inode->i_mapping);
 		flags |= FLUSH_SYNC;
@@ -438,8 +925,7 @@ xfs_fs_clear_inode(
 	 * find an inode with di_mode == 0 but without IGET_CREATE set.
 	 */
 	if (ip) {
-		vn_trace_entry(ip, __FUNCTION__, (inst_t *)__return_address);
-
+		xfs_itrace_entry(ip);
 		XFS_STATS_INC(vn_rele);
 		XFS_STATS_INC(vn_remove);
 		XFS_STATS_INC(vn_reclaim);
@@ -683,8 +1169,44 @@ xfs_fs_statfs(
 	struct dentry		*dentry,
 	struct kstatfs		*statp)
 {
-	return -xfs_statvfs(XFS_M(dentry->d_sb), statp,
-				vn_from_inode(dentry->d_inode));
+	struct xfs_mount	*mp = XFS_M(dentry->d_sb);
+	xfs_sb_t		*sbp = &mp->m_sb;
+	__uint64_t		fakeinos, id;
+	xfs_extlen_t		lsize;
+
+	statp->f_type = XFS_SB_MAGIC;
+	statp->f_namelen = MAXNAMELEN - 1;
+
+	id = huge_encode_dev(mp->m_ddev_targp->bt_dev);
+	statp->f_fsid.val[0] = (u32)id;
+	statp->f_fsid.val[1] = (u32)(id >> 32);
+
+	xfs_icsb_sync_counters_flags(mp, XFS_ICSB_LAZY_COUNT);
+
+	spin_lock(&mp->m_sb_lock);
+	statp->f_bsize = sbp->sb_blocksize;
+	lsize = sbp->sb_logstart ? sbp->sb_logblocks : 0;
+	statp->f_blocks = sbp->sb_dblocks - lsize;
+	statp->f_bfree = statp->f_bavail =
+				sbp->sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
+	fakeinos = statp->f_bfree << sbp->sb_inopblog;
+#if XFS_BIG_INUMS
+	fakeinos += mp->m_inoadd;
+#endif
+	statp->f_files =
+	    MIN(sbp->sb_icount + fakeinos, (__uint64_t)XFS_MAXINUMBER);
+	if (mp->m_maxicount)
+#if XFS_BIG_INUMS
+		if (!mp->m_inoadd)
+#endif
+			statp->f_files = min_t(typeof(statp->f_files),
+						statp->f_files,
+						mp->m_maxicount);
+	statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
+	spin_unlock(&mp->m_sb_lock);
+
+	XFS_QM_DQSTATVFS(XFS_I(dentry->d_inode), statp);
+	return 0;
 }
 
 STATIC int
@@ -704,11 +1226,19 @@ xfs_fs_remount(
 	return -error;
 }
 
+/*
+ * Second stage of a freeze. The data is already frozen so we only
+ * need to take care of themetadata. Once that's done write a dummy
+ * record to dirty the log in case of a crash while frozen.
+ */
 STATIC void
 xfs_fs_lockfs(
 	struct super_block	*sb)
 {
-	xfs_freeze(XFS_M(sb));
+	struct xfs_mount	*mp = XFS_M(sb);
+
+	xfs_attr_quiesce(mp);
+	xfs_fs_log_dummy(mp);
 }
 
 STATIC int
@@ -779,7 +1309,6 @@ xfs_fs_fill_super(
 	struct inode		*rootvp;
 	struct xfs_mount	*mp = NULL;
 	struct xfs_mount_args	*args = xfs_args_allocate(sb, silent);
-	struct kstatfs		statvfs;
 	int			error;
 
 	mp = xfs_mount_init();
@@ -807,21 +1336,19 @@ xfs_fs_fill_super(
 	if (error)
 		goto fail_vfsop;
 
-	error = xfs_statvfs(mp, &statvfs, NULL);
-	if (error)
-		goto fail_unmount;
-
 	sb->s_dirt = 1;
-	sb->s_magic = statvfs.f_type;
-	sb->s_blocksize = statvfs.f_bsize;
-	sb->s_blocksize_bits = ffs(statvfs.f_bsize) - 1;
+	sb->s_magic = XFS_SB_MAGIC;
+	sb->s_blocksize = mp->m_sb.sb_blocksize;
+	sb->s_blocksize_bits = ffs(sb->s_blocksize) - 1;
 	sb->s_maxbytes = xfs_max_file_offset(sb->s_blocksize_bits);
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
-	error = xfs_root(mp, &rootvp);
-	if (error)
+	rootvp = igrab(mp->m_rootip->i_vnode);
+	if (!rootvp) {
+		error = ENOENT;
 		goto fail_unmount;
+	}
 
 	sb->s_root = d_alloc_root(vn_to_inode(rootvp));
 	if (!sb->s_root) {
@@ -841,8 +1368,7 @@ xfs_fs_fill_super(
 		goto fail_vnrele;
 	}
 
-	vn_trace_exit(XFS_I(sb->s_root->d_inode), __FUNCTION__,
-			(inst_t *)__return_address);
+	xfs_itrace_exit(XFS_I(sb->s_root->d_inode));
 
 	kmem_free(args, sizeof(*args));
 	return 0;