[XFS] Write log dummy record when freezing filesystem
SGI-PV: 945483
SGI-Modid: xfs-linux-melb:xfs-kern:202638a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index d1236d6..163031c 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -540,6 +540,32 @@
return(0);
}
+void
+xfs_fs_log_dummy(xfs_mount_t *mp)
+{
+ xfs_trans_t *tp;
+ xfs_inode_t *ip;
+
+
+ tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
+ atomic_inc(&mp->m_active_trans);
+ if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
+ xfs_trans_cancel(tp, 0);
+ return;
+ }
+
+ ip = mp->m_rootip;
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+ xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+ xfs_trans_ihold(tp, ip);
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+ xfs_trans_set_sync(tp);
+ xfs_trans_commit(tp, 0, NULL);
+
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+}
+
int
xfs_fs_goingdown(
xfs_mount_t *mp,
diff --git a/fs/xfs/xfs_fsops.h b/fs/xfs/xfs_fsops.h
index f32713f..300d0c9 100644
--- a/fs/xfs/xfs_fsops.h
+++ b/fs/xfs/xfs_fsops.h
@@ -25,5 +25,6 @@
extern int xfs_reserve_blocks(xfs_mount_t *mp, __uint64_t *inval,
xfs_fsop_resblks_t *outval);
extern int xfs_fs_goingdown(xfs_mount_t *mp, __uint32_t inflags);
+extern void xfs_fs_log_dummy(xfs_mount_t *mp);
#endif /* __XFS_FSOPS_H__ */
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index bfdabde..dcdb0a8 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -53,6 +53,7 @@
#include "xfs_acl.h"
#include "xfs_attr.h"
#include "xfs_clnt.h"
+#include "xfs_fsops.h"
STATIC int xfs_sync(bhv_desc_t *, int, cred_t *);
@@ -1967,6 +1968,7 @@
/* Push the superblock and write an unmount record */
xfs_log_unmount_write(mp);
xfs_unmountfs_writesb(mp);
+ xfs_fs_log_dummy(mp);
}