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authorChristoph Hellwig <hch@lst.de>2008-12-03 12:20:34 +0100
committerNiv Sardi <xaiki@sgi.com>2008-12-04 15:39:23 +1100
commitb56757becf8bc62292263a24a23cf55edb4be55f (patch)
tree05940d51ed3819d59fdc78d8241128e7c27d1607
parente88f11abe09d14718b82a991db118c5e485aa897 (diff)
downloadop-kernel-dev-b56757becf8bc62292263a24a23cf55edb4be55f.zip
op-kernel-dev-b56757becf8bc62292263a24a23cf55edb4be55f.tar.gz
remove leftovers of shared read-only support
We never supported shared read-only filesystems, so remove the dead code left over from IRIX for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c29
-rw-r--r--fs/xfs/xfs_mount.c26
-rw-r--r--fs/xfs/xfs_mount.h2
3 files changed, 0 insertions, 57 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 37f2d11..c4f788e 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -1388,35 +1388,6 @@ xfs_finish_flags(
return XFS_ERROR(EROFS);
}
-#if 0 /* shared mounts were never supported on Linux */
- /*
- * 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 &&
- (mp->m_flags & XFS_MOUNT_DMAPI))
- return XFS_ERROR(EINVAL);
- }
-#endif
-
return 0;
}
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 3f999b1..1672ff56 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1352,24 +1352,6 @@ xfs_log_sbcount(
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)
{
@@ -1385,12 +1367,6 @@ 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);
@@ -1402,8 +1378,6 @@ xfs_unmountfs_writesb(xfs_mount_t *mp)
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;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index cfdac80..2ab2df5 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -301,7 +301,6 @@ typedef struct xfs_mount {
int m_sinoalign; /* stripe unit inode alignment */
int m_attr_magicpct;/* 37% of the blocksize */
int m_dir_magicpct; /* 37% of the dir blocksize */
- __uint8_t m_mk_sharedro; /* mark shared ro on unmount */
__uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */
int m_dirblksize; /* directory block sz--bytes */
@@ -349,7 +348,6 @@ typedef struct xfs_mount {
#define XFS_MOUNT_ATTR2 (1ULL << 8) /* allow use of attr2 format */
#define XFS_MOUNT_GRPID (1ULL << 9) /* group-ID assigned from directory */
#define XFS_MOUNT_NORECOVERY (1ULL << 10) /* no recovery - dirty fs */
-#define XFS_MOUNT_SHARED (1ULL << 11) /* shared mount */
#define XFS_MOUNT_DFLT_IOSIZE (1ULL << 12) /* set default i/o size */
#define XFS_MOUNT_OSYNCISOSYNC (1ULL << 13) /* o_sync is REALLY o_sync */
/* osyncisdsync is now default*/
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