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Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"

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This reverts commit e9496ff46a. Quoth Al:

 "it's dependent on a lot of other stuff not currently in mainline
  and badly broken with current fs/namespace.c.  Sorry, badly
  out-of-order cherry-pick from old queue.

  PS: there's a large pending series reworking the refcounting and
  lifetime rules for vfsmounts that will, among other things, allow to
  rip a subtree away _without_ dissolving connections in it, to be
  garbage-collected when all active references are gone.  It's
  considerably saner wrt "is the subtree busy" logics, but it's nowhere
  near being ready for merge at the moment; this changeset is one of the
  things becoming possible with that sucker, but it certainly shouldn't
  have been picked during this cycle.  My apologies..."

Noticed-by: Eric Paris <[email protected]>
Requested-by: Al Viro <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Linus Torvalds 2009-12-17 12:51:05 -08:00
commit a2770d86b3
3 changed files with 11 additions and 1 deletions
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3
fs/namespace.c
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@ -2068,7 +2068,7 @@ struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
* create_mnt_ns - creates a private namespace and adds a root filesystem
* @mnt: pointer to the new root filesystem mountpoint
*/
static struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
{
struct mnt_namespace *new_ns;
@ -2080,6 +2080,7 @@ static struct mnt_namespace *create_mnt_ns(struct vfsmount *mnt)
}
return new_ns;
}
EXPORT_SYMBOL(create_mnt_ns);
SYSCALL_DEFINE5(mount, char __user *, dev_name, char __user *, dir_name,
char __user *, type, unsigned long, flags, void __user *, data)