}
/*
- * xfs_cmountfs
- *
- * This function is the common mount file system function for XFS.
+ * 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_cmountfs(
- vfs_t *vfsp,
- dev_t ddev,
- dev_t logdev,
- dev_t rtdev,
- struct xfs_mount_args *ap,
- struct cred *cr)
+int
+xfs_start_flags(
+ vfs_t *vfsp,
+ dev_t ddev,
+ dev_t logdev,
+ dev_t rtdev,
+ struct xfs_mount_args *ap,
+ struct xfs_mount *mp)
{
- xfs_mount_t *mp;
- int error = 0;
-
-
- /*
- * Allocate VFS private data (xfs mount structure).
- */
- mp = xfs_mount_init();
-
- vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
-
- /*
- * Open data, real time, and log devices now - order is important.
- */
- mp->m_ddev_targp = pagebuf_lock_enable(ddev, 0);
- if (IS_ERR(mp->m_ddev_targp)) {
- error = PTR_ERR(mp->m_ddev_targp);
- goto error2;
- }
-
- if (rtdev != 0) {
- mp->m_rtdev_targp =
- pagebuf_lock_enable(rtdev, 1);
- if (IS_ERR(mp->m_rtdev_targp)) {
- error = PTR_ERR(mp->m_rtdev_targp);
- pagebuf_lock_disable(mp->m_ddev_targp, 0);
- goto error2;
- }
- }
-
- if (logdev != ddev) {
- mp->m_logdev_targp =
- pagebuf_lock_enable(logdev, 1);
- if (IS_ERR(mp->m_logdev_targp)) {
- error = PTR_ERR(mp->m_logdev_targp);
- pagebuf_lock_disable(mp->m_ddev_targp, 1);
- if (mp->m_rtdev_targp)
- pagebuf_lock_disable(mp->m_rtdev_targp, 1);
- goto error2;
- }
- }
-
/* Values are in BBs */
if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
/*
cmn_err(CE_WARN,
"XFS: invalid logbufs value: %d [not %d-%d]\n",
ap->logbufs, XLOG_NUM_ICLOGS, XLOG_MAX_ICLOGS);
- error = XFS_ERROR(EINVAL);
- goto error3;
+ return XFS_ERROR(EINVAL);
}
mp->m_logbufs = ap->logbufs;
if (ap->logbufsize != -1 &&
cmn_err(CE_WARN,
"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]\n",
ap->logbufsize);
- error = XFS_ERROR(EINVAL);
- goto error3;
+ return XFS_ERROR(EINVAL);
}
mp->m_logbsize = ap->logbufsize;
mp->m_fsname_len = strlen(ap->fsname) + 1;
if (rtdev == ddev || rtdev == logdev) {
cmn_err(CE_WARN,
"XFS: Cannot mount filesystem with identical rtdev and logdev.");
- error = XFS_ERROR(EINVAL);
- goto error3;
+ return XFS_ERROR(EINVAL);
} else {
/* Set the realtime device's block size */
set_blocksize(mp->m_rtdev_targp->pbr_bdev, 512);
"XFS: invalid log iosize: %d [not %d-%d]",
ap->iosizelog, XFS_MIN_IO_LOG,
XFS_MAX_IO_LOG);
- error = XFS_ERROR(EINVAL);
- goto error3;
+ return XFS_ERROR(EINVAL);
}
mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
if (!(vfsp->vfs_flag & VFS_RDONLY)) {
cmn_err(CE_WARN,
"XFS: tried to mount a FS read-write without recovery!");
- error = XFS_ERROR(EINVAL);
- goto error3;
+ return XFS_ERROR(EINVAL);
}
mp->m_flags |= XFS_MOUNT_NORECOVERY;
}
mp->m_flags |= XFS_MOUNT_NOLOGFLUSH;
}
- /*
- * read in superblock to check read-only flags and shared
- * mount status
- */
- if ((error = xfs_readsb(mp)))
- goto error3;
+ return 0;
+}
+/*
+ * This function fills in xfs_mount_t fields based on mount args.
+ * Note: the superblock _has_ now been read in.
+ */
+int
+xfs_finish_flags(
+ vfs_t *vfsp,
+ dev_t ddev,
+ dev_t logdev,
+ dev_t rtdev,
+ struct xfs_mount_args *ap,
+ struct xfs_mount *mp)
+{
/* Fail a mount where the logbuf is smaller then the log stripe */
if (XFS_SB_VERSION_HASLOGV2(&mp->m_sb)) {
if (((ap->logbufsize == -1) &&
(mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) ||
(ap->logbufsize < mp->m_sb.sb_logsunit)) {
- cmn_err(CE_WARN, "XFS: "
- "logbuf size must be greater than or equal to log stripe size");
- xfs_freesb(mp);
- error = XFS_ERROR(EINVAL);
- goto error3;
+ 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: "
- "XFS: logbuf size for version 1 logs must be 16K or 32K");
- xfs_freesb(mp);
- error = XFS_ERROR(EINVAL);
- goto error3;
+ cmn_err(CE_WARN,
+ "XFS: logbuf size for version 1 logs must be 16K or 32K");
+ return XFS_ERROR(EINVAL);
}
}
- pagebuf_target_blocksize(mp->m_ddev_targp, mp->m_sb.sb_blocksize);
- if (logdev != 0 && logdev != ddev)
- pagebuf_target_blocksize(mp->m_logdev_targp, mp->m_sb.sb_blocksize);
- if (rtdev != 0)
- pagebuf_target_blocksize(mp->m_rtdev_targp, mp->m_sb.sb_blocksize);
-
/*
* prohibit r/w mounts of read-only filesystems
*/
if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) &&
!(vfsp->vfs_flag & VFS_RDONLY)) {
- cmn_err(CE_WARN, "XFS: "
- "cannot mount a read-only filesystem as read-write");
- error = XFS_ERROR(EROFS);
- xfs_freesb(mp);
- goto error3;
+ cmn_err(CE_WARN,
+ "XFS: cannot mount a read-only filesystem as read-write");
+ return XFS_ERROR(EROFS);
+ }
+
+ /*
+ * disallow mount attempts with (IRIX) project quota enabled
+ */
+ if (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
+ (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT)) {
+ cmn_err(CE_WARN,
+ "XFS: cannot mount a filesystem with IRIX project quota enabled");
+ return XFS_ERROR(ENOSYS);
}
/*
* check for shared mount.
*/
if (ap && ap->flags & XFSMNT_SHARED) {
- if (!XFS_SB_VERSION_HASSHARED(&mp->m_sb)) {
- error = XFS_ERROR(EINVAL);
- xfs_freesb(mp);
- goto error3;
- }
+ if (!XFS_SB_VERSION_HASSHARED(&mp->m_sb))
+ return XFS_ERROR(EINVAL);
/*
* For IRIX 6.5, shared mounts must have the shared
*/
if (!(vfsp->vfs_flag & VFS_RDONLY) ||
!(mp->m_sb.sb_flags & XFS_SBF_READONLY) ||
- mp->m_sb.sb_shared_vn != 0) {
- error = XFS_ERROR(EINVAL);
- xfs_freesb(mp);
- goto error3;
- }
+ (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)) {
- error = XFS_ERROR(EINVAL);
- xfs_freesb(mp);
- goto error3;
+ if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI))
+ return XFS_ERROR(EINVAL);
+ }
+
+ return 0;
+}
+
+/*
+ * xfs_cmountfs
+ *
+ * This function is the common mount file system function for XFS.
+ */
+STATIC int
+xfs_cmountfs(
+ vfs_t *vfsp,
+ dev_t ddev,
+ dev_t logdev,
+ dev_t rtdev,
+ struct xfs_mount_args *ap,
+ struct cred *cr)
+{
+ xfs_mount_t *mp;
+ int error = 0;
+
+ /*
+ * Allocate VFS private data (xfs mount structure).
+ */
+ mp = xfs_mount_init();
+
+ vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
+
+ /*
+ * Open data, real time, and log devices now - order is important.
+ */
+ mp->m_ddev_targp = pagebuf_lock_enable(ddev, 0);
+ if (IS_ERR(mp->m_ddev_targp)) {
+ error = PTR_ERR(mp->m_ddev_targp);
+ goto error2;
+ }
+
+ if (rtdev != 0) {
+ mp->m_rtdev_targp = pagebuf_lock_enable(rtdev, 1);
+ if (IS_ERR(mp->m_rtdev_targp)) {
+ error = PTR_ERR(mp->m_rtdev_targp);
+ pagebuf_lock_disable(mp->m_ddev_targp, 0);
+ goto error2;
+ }
+ }
+
+ if (logdev != ddev) {
+ mp->m_logdev_targp = pagebuf_lock_enable(logdev, 1);
+ if (IS_ERR(mp->m_logdev_targp)) {
+ error = PTR_ERR(mp->m_logdev_targp);
+ pagebuf_lock_disable(mp->m_ddev_targp, 1);
+ if (mp->m_rtdev_targp)
+ pagebuf_lock_disable(mp->m_rtdev_targp, 1);
+ goto error2;
}
}
- if ((error = xfs_mountfs(vfsp, mp, ddev, 0)) == 0)
+ if ((error = xfs_start_flags(vfsp, ddev, logdev, rtdev, ap, mp)))
+ goto error3;
+
+ if ((error = xfs_readsb(mp)))
+ goto error3;
+
+ if ((error = xfs_finish_flags(vfsp, ddev, logdev, rtdev, ap, mp))) {
+ xfs_freesb(mp);
+ goto error3;
+ }
+
+ pagebuf_target_blocksize(mp->m_ddev_targp, mp->m_sb.sb_blocksize);
+ if (logdev != 0 && logdev != ddev)
+ pagebuf_target_blocksize(mp->m_logdev_targp,
+ mp->m_sb.sb_blocksize);
+ if (rtdev != 0)
+ pagebuf_target_blocksize(mp->m_rtdev_targp,
+ mp->m_sb.sb_blocksize);
+
+ mp->m_cxfstype = XFS_CXFS_NOT;
+ if ((error = xfs_mountfs(vfsp, mp, ddev, 0)) == 0) {
+ /* Success! */
return 0;
+ }
/*
* Be careful not to clobber the value of 'error' here.
projects / history.git / commitdiff