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TAKE - Fix read-only mount of LVM snapshots.

Subject: TAKE - Fix read-only mount of LVM snapshots.
From: Eric Sandeen <sandeen@xxxxxxx>
Date: Mon, 17 Sep 2001 12:25:38 -0500
Sender: owner-linux-xfs@xxxxxxxxxxx
A dummy log entry was added to xfs_fs_freeze, to ensure that unlinked files
got processed on an otherwise clean filesystem that was shut down with umount
-i (an irix fix).  Dirtying the log in xfs_fs_freeze, though, affects
snapshotting such that the snapshot can't be mounted read-only.

For now, just don't dirty the log with a dummy transaction in xfs_fs_freeze().


Date:  Mon Sep 17 10:20:15 PDT 2001
Workarea:  stout.americas.sgi.com:/localhome/eric/2.4.x-xfs/workarea-clean

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:102882a
linux/fs/xfs/xfs_fsops.c - 1.69
        - Back out part of irix6.5f:irix:101630a mrege
          Don't dirty log in xfs_fs_freeze(), as this affects more than 
          just umount -k
          In Irix this will probably move to xfs_goingdown()



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