#include "xfs_fsops.h"
#include "xfs_utils.h"
-STATIC int xfs_mount_log_sb(xfs_mount_t *, __int64_t);
STATIC int xfs_uuid_mount(xfs_mount_t *);
STATIC void xfs_unmountfs_wait(xfs_mount_t *);
mp->m_sectbb_log = sbp->sb_sectlog - BBSHIFT;
mp->m_agno_log = xfs_highbit32(sbp->sb_agcount - 1) + 1;
mp->m_agino_log = sbp->sb_inopblog + sbp->sb_agblklog;
- mp->m_litino = sbp->sb_inodesize -
- ((uint)sizeof(xfs_dinode_core_t) + (uint)sizeof(xfs_agino_t));
+ mp->m_litino = sbp->sb_inodesize - sizeof(struct xfs_dinode);
mp->m_blockmask = sbp->sb_blocksize - 1;
mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
mp->m_blockwmask = mp->m_blockwsize - 1;
* Update alignment values based on mount options and sb values
*/
STATIC int
-xfs_update_alignment(xfs_mount_t *mp, __uint64_t *update_flags)
+xfs_update_alignment(xfs_mount_t *mp)
{
xfs_sb_t *sbp = &(mp->m_sb);
if (xfs_sb_version_hasdalign(sbp)) {
if (sbp->sb_unit != mp->m_dalign) {
sbp->sb_unit = mp->m_dalign;
- *update_flags |= XFS_SB_UNIT;
+ mp->m_update_flags |= XFS_SB_UNIT;
}
if (sbp->sb_width != mp->m_swidth) {
sbp->sb_width = mp->m_swidth;
- *update_flags |= XFS_SB_WIDTH;
+ mp->m_update_flags |= XFS_SB_WIDTH;
}
}
} else if ((mp->m_flags & XFS_MOUNT_NOALIGN) != XFS_MOUNT_NOALIGN &&
}
/*
- * xfs_mountfs
- *
* This function does the following on an initial mount of a file system:
* - reads the superblock from disk and init the mount struct
* - if we're a 32-bit kernel, do a size check on the superblock
xfs_sb_t *sbp = &(mp->m_sb);
xfs_inode_t *rip;
__uint64_t resblks;
- __int64_t update_flags = 0LL;
uint quotamount, quotaflags;
- int uuid_mounted = 0;
int error = 0;
xfs_mount_common(mp, sbp);
"XFS: correcting sb_features alignment problem");
sbp->sb_features2 |= sbp->sb_bad_features2;
sbp->sb_bad_features2 = sbp->sb_features2;
- update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2;
+ mp->m_update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2;
/*
* Re-check for ATTR2 in case it was found in bad_features2
if (xfs_sb_version_hasattr2(&mp->m_sb) &&
(mp->m_flags & XFS_MOUNT_NOATTR2)) {
xfs_sb_version_removeattr2(&mp->m_sb);
- update_flags |= XFS_SB_FEATURES2;
+ mp->m_update_flags |= XFS_SB_FEATURES2;
/* update sb_versionnum for the clearing of the morebits */
if (!sbp->sb_features2)
- update_flags |= XFS_SB_VERSIONNUM;
+ mp->m_update_flags |= XFS_SB_VERSIONNUM;
}
/*
* allocator alignment is within an ag, therefore ag has
* to be aligned at stripe boundary.
*/
- error = xfs_update_alignment(mp, &update_flags);
+ error = xfs_update_alignment(mp);
if (error)
- goto error1;
+ goto out;
xfs_alloc_compute_maxlevels(mp);
xfs_bmap_compute_maxlevels(mp, XFS_DATA_FORK);
* since a single partition filesystem is identical to a single
* partition volume/filesystem.
*/
- if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
+ if (!(mp->m_flags & XFS_MOUNT_NOUUID)) {
if (xfs_uuid_mount(mp)) {
error = XFS_ERROR(EINVAL);
- goto error1;
+ goto out;
}
- uuid_mounted=1;
}
/*
*/
error = xfs_check_sizes(mp);
if (error)
- goto error1;
+ goto out_remove_uuid;
/*
* Initialize realtime fields in the mount structure
error = xfs_rtmount_init(mp);
if (error) {
cmn_err(CE_WARN, "XFS: RT mount failed");
- goto error1;
+ goto out_remove_uuid;
}
/*
mp->m_perag = kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t),
KM_MAYFAIL);
if (!mp->m_perag)
- goto error1;
+ goto out_remove_uuid;
mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
+ if (!sbp->sb_logblocks) {
+ cmn_err(CE_WARN, "XFS: no log defined");
+ XFS_ERROR_REPORT("xfs_mountfs", XFS_ERRLEVEL_LOW, mp);
+ error = XFS_ERROR(EFSCORRUPTED);
+ goto out_free_perag;
+ }
+
/*
* log's mount-time initialization. Perform 1st part recovery if needed
*/
- if (likely(sbp->sb_logblocks > 0)) { /* check for volume case */
- error = xfs_log_mount(mp, mp->m_logdev_targp,
- XFS_FSB_TO_DADDR(mp, sbp->sb_logstart),
- XFS_FSB_TO_BB(mp, sbp->sb_logblocks));
- if (error) {
- cmn_err(CE_WARN, "XFS: log mount failed");
- goto error2;
- }
- } else { /* No log has been defined */
- cmn_err(CE_WARN, "XFS: no log defined");
- XFS_ERROR_REPORT("xfs_mountfs_int(1)", XFS_ERRLEVEL_LOW, mp);
- error = XFS_ERROR(EFSCORRUPTED);
- goto error2;
+ error = xfs_log_mount(mp, mp->m_logdev_targp,
+ XFS_FSB_TO_DADDR(mp, sbp->sb_logstart),
+ XFS_FSB_TO_BB(mp, sbp->sb_logblocks));
+ if (error) {
+ cmn_err(CE_WARN, "XFS: log mount failed");
+ goto out_free_perag;
}
/*
* If we are currently making the filesystem, the initialisation will
* fail as the perag data is in an undefined state.
*/
-
if (xfs_sb_version_haslazysbcount(&mp->m_sb) &&
!XFS_LAST_UNMOUNT_WAS_CLEAN(mp) &&
!mp->m_sb.sb_inprogress) {
error = xfs_initialize_perag_data(mp, sbp->sb_agcount);
- if (error) {
- goto error2;
- }
+ if (error)
+ goto out_free_perag;
}
+
/*
* Get and sanity-check the root inode.
* Save the pointer to it in the mount structure.
error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip, 0);
if (error) {
cmn_err(CE_WARN, "XFS: failed to read root inode");
- goto error3;
+ goto out_log_dealloc;
}
ASSERT(rip != NULL);
XFS_ERROR_REPORT("xfs_mountfs_int(2)", XFS_ERRLEVEL_LOW,
mp);
error = XFS_ERROR(EFSCORRUPTED);
- goto error4;
+ goto out_rele_rip;
}
mp->m_rootip = rip; /* save it */
* Free up the root inode.
*/
cmn_err(CE_WARN, "XFS: failed to read RT inodes");
- goto error4;
+ goto out_rele_rip;
}
/*
- * If fs is not mounted readonly, then update the superblock changes.
+ * If this is a read-only mount defer the superblock updates until
+ * the next remount into writeable mode. Otherwise we would never
+ * perform the update e.g. for the root filesystem.
*/
- if (update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
- error = xfs_mount_log_sb(mp, update_flags);
+ if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ error = xfs_mount_log_sb(mp, mp->m_update_flags);
if (error) {
cmn_err(CE_WARN, "XFS: failed to write sb changes");
- goto error4;
+ goto out_rtunmount;
}
}
*/
error = XFS_QM_INIT(mp, "amount, "aflags);
if (error)
- goto error4;
+ goto out_rtunmount;
/*
* Finish recovering the file system. This part needed to be
error = xfs_log_mount_finish(mp);
if (error) {
cmn_err(CE_WARN, "XFS: log mount finish failed");
- goto error4;
+ goto out_rtunmount;
}
/*
*/
error = XFS_QM_MOUNT(mp, quotamount, quotaflags);
if (error)
- goto error4;
+ goto out_rtunmount;
/*
* Now we are mounted, reserve a small amount of unused space for
return 0;
- error4:
- /*
- * Free up the root inode.
- */
+ out_rtunmount:
+ xfs_rtunmount_inodes(mp);
+ out_rele_rip:
IRELE(rip);
- error3:
+ out_log_dealloc:
xfs_log_unmount_dealloc(mp);
- error2:
+ out_free_perag:
xfs_free_perag(mp);
- error1:
- if (uuid_mounted)
+ out_remove_uuid:
+ if (!(mp->m_flags & XFS_MOUNT_NOUUID))
uuid_table_remove(&mp->m_sb.sb_uuid);
+ out:
return error;
}
__uint64_t resblks;
int error;
+ /*
+ * Release dquot that rootinode, rbmino and rsumino might be holding,
+ * and release the quota inodes.
+ */
+ XFS_QM_UNMOUNT(mp);
+
+ xfs_rtunmount_inodes(mp);
IRELE(mp->m_rootip);
/*
return error;
}
-STATIC void
-xfs_mark_shared_ro(
- xfs_mount_t *mp,
- xfs_buf_t *bp)
-{
- xfs_dsb_t *sb = XFS_BUF_TO_SBP(bp);
- __uint16_t version;
-
- if (!(sb->sb_flags & XFS_SBF_READONLY))
- sb->sb_flags |= XFS_SBF_READONLY;
-
- version = be16_to_cpu(sb->sb_versionnum);
- if ((version & XFS_SB_VERSION_NUMBITS) != XFS_SB_VERSION_4 ||
- !(version & XFS_SB_VERSION_SHAREDBIT))
- version |= XFS_SB_VERSION_SHAREDBIT;
- sb->sb_versionnum = cpu_to_be16(version);
-}
-
int
xfs_unmountfs_writesb(xfs_mount_t *mp)
{
sbp = xfs_getsb(mp, 0);
- /*
- * mark shared-readonly if desired
- */
- if (mp->m_mk_sharedro)
- xfs_mark_shared_ro(mp, sbp);
-
XFS_BUF_UNDONE(sbp);
XFS_BUF_UNREAD(sbp);
XFS_BUF_UNDELAYWRITE(sbp);
if (error)
xfs_ioerror_alert("xfs_unmountfs_writesb",
mp, sbp, XFS_BUF_ADDR(sbp));
- if (error && mp->m_mk_sharedro)
- xfs_fs_cmn_err(CE_ALERT, mp, "Superblock write error detected while unmounting. Filesystem may not be marked shared readonly");
xfs_buf_relse(sbp);
}
return error;
* be altered by the mount options, as well as any potential sb_features2
* fixup. Only the first superblock is updated.
*/
-STATIC int
+int
xfs_mount_log_sb(
xfs_mount_t *mp,
__int64_t fields)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff