Messages in this thread | | | Subject | do_umount strangeness? | From | tvrtko.ursulin@sophos ... | Date | Mon, 21 Mar 2005 10:28:13 +0000 |
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[Reposted due to wrong LKML address, sorry Al]
Hi,
Looking at linux-2.6.11/fs/namespace.c line 418:
if (mnt == current->fs->rootmnt && !(flags & MNT_DETACH)) { /* * Special case for "unmounting" root ...
I wonder is this really a test for root? Couldn't the current->fs->rootmnt "point" somewhere else if per-process namespaces are used? Is it intended that processes can't umount their own root, or better to say, to only be able to remount it read-only?
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