[XFS] Rework fid encode/decode wrt 64 bit inums interacting with NFS.
SGI-PV: 937127
SGI-Modid: xfs-linux:xfs-kern:24201a
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 3e97076..80eb249 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -96,9 +96,8 @@
int is64 = 0;
#if XFS_BIG_INUMS
vfs_t *vfs = LINVFS_GET_VFS(inode->i_sb);
- xfs_mount_t *mp = XFS_VFSTOM(vfs);
- if (!(mp->m_flags & XFS_MOUNT_32BITINOOPT)) {
+ if (!(vfs->vfs_flag & VFS_32BITINODES)) {
/* filesystem may contain 64bit inode numbers */
is64 = XFS_FILEID_TYPE_64FLAG;
}
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index d5fb28f..57caf9e 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -81,6 +81,7 @@
#define VFS_RDONLY 0x0001 /* read-only vfs */
#define VFS_GRPID 0x0002 /* group-ID assigned from directory */
#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */
+#define VFS_32BITINODES 0x0008 /* do not use inums above 32 bits */
#define VFS_END 0x0008 /* max flag */
#define SYNC_ATTR 0x0001 /* sync attributes */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 0ca597b..7ceabd0 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -171,7 +171,7 @@
memset(&mp->m_perag[oagcount], 0,
(nagcount - oagcount) * sizeof(xfs_perag_t));
mp->m_flags |= XFS_MOUNT_32BITINODES;
- nagimax = xfs_initialize_perag(mp, nagcount);
+ nagimax = xfs_initialize_perag(XFS_MTOVFS(mp), mp, nagcount);
up_write(&mp->m_peraglock);
}
tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 9e861d0..02b1892 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -316,7 +316,10 @@
}
xfs_agnumber_t
-xfs_initialize_perag(xfs_mount_t *mp, xfs_agnumber_t agcount)
+xfs_initialize_perag(
+ struct vfs *vfs,
+ xfs_mount_t *mp,
+ xfs_agnumber_t agcount)
{
xfs_agnumber_t index, max_metadata;
xfs_perag_t *pag;
@@ -332,7 +335,7 @@
/* Clear the mount flag if no inode can overflow 32 bits
* on this filesystem, or if specifically requested..
*/
- if ((mp->m_flags & XFS_MOUNT_32BITINOOPT) && ino > max_inum) {
+ if ((vfs->vfs_flag & VFS_32BITINODES) && ino > max_inum) {
mp->m_flags |= XFS_MOUNT_32BITINODES;
} else {
mp->m_flags &= ~XFS_MOUNT_32BITINODES;
@@ -944,7 +947,7 @@
mp->m_perag =
kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t), KM_SLEEP);
- mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
+ mp->m_maxagi = xfs_initialize_perag(vfsp, mp, sbp->sb_agcount);
/*
* log's mount-time initialization. Perform 1st part recovery if needed
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index f724a2b..08b2e0a 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -402,7 +402,7 @@
/* osyncisdsync is now default*/
#define XFS_MOUNT_32BITINODES (1ULL << 14) /* do not create inodes above
* 32 bits in size */
-#define XFS_MOUNT_32BITINOOPT (1ULL << 15) /* saved mount option state */
+ /* (1ULL << 15) -- currently unused */
#define XFS_MOUNT_NOUUID (1ULL << 16) /* ignore uuid during mount */
#define XFS_MOUNT_BARRIER (1ULL << 17)
#define XFS_MOUNT_IDELETE (1ULL << 18) /* delete empty inode clusters*/
@@ -557,7 +557,8 @@
extern void xfs_do_force_shutdown(bhv_desc_t *, int, char *, int);
extern int xfs_syncsub(xfs_mount_t *, int, int, int *);
extern int xfs_sync_inodes(xfs_mount_t *, int, int, int *);
-extern xfs_agnumber_t xfs_initialize_perag(xfs_mount_t *, xfs_agnumber_t);
+extern xfs_agnumber_t xfs_initialize_perag(struct vfs *, xfs_mount_t *,
+ xfs_agnumber_t);
extern void xfs_xlatesb(void *, struct xfs_sb *, int, __int64_t);
extern struct xfs_dmops xfs_dmcore_stub;
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index f4f8805..dd419e1 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -269,7 +269,7 @@
if (ap->flags & XFSMNT_OSYNCISOSYNC)
mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
if (ap->flags & XFSMNT_32BITINODES)
- mp->m_flags |= (XFS_MOUNT_32BITINODES | XFS_MOUNT_32BITINOOPT);
+ mp->m_flags |= XFS_MOUNT_32BITINODES;
if (ap->flags & XFSMNT_IOSIZE) {
if (ap->iosizelog > XFS_MAX_IO_LOG ||
@@ -1868,6 +1868,9 @@
args->sunit = args->swidth = 0;
}
+ if (args->flags & XFSMNT_32BITINODES)
+ vfsp->vfs_flag |= VFS_32BITINODES;
+
if (args->flags2)
args->flags |= XFSMNT_FLAGS2;
return 0;
@@ -1929,15 +1932,15 @@
seq_printf(m, "," MNTOPT_SWIDTH "=%d",
(int)XFS_FSB_TO_BB(mp, mp->m_swidth));
- if (!(mp->m_flags & XFS_MOUNT_32BITINOOPT))
- seq_printf(m, "," MNTOPT_64BITINODE);
-
if (!(mp->m_flags & XFS_MOUNT_COMPAT_ATTR))
seq_printf(m, "," MNTOPT_ATTR2);
if (!(mp->m_flags & XFS_MOUNT_COMPAT_IOSIZE))
seq_printf(m, "," MNTOPT_LARGEIO);
+ if (!(vfsp->vfs_flag & VFS_32BITINODES))
+ seq_printf(m, "," MNTOPT_64BITINODE);
+
if (vfsp->vfs_flag & VFS_GRPID)
seq_printf(m, "," MNTOPT_GRPID);