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[PATCH] introduce shared mounts

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This creates shared mounts.  A shared mount when bind-mounted to some
mountpoint, propagates mount/umount events to each other.  All the
shared mounts that propagate events to each other belong to the same
peer-group.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ram Pai 2005-11-07 17:19:33 -05:00 • committed by Linus Torvalds
parent 07b20889e3
commit 03e06e68ff
5 changed files with 21 additions and 2 deletions
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4
fs/pnode.h
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@ -10,5 +10,9 @@
#include <linux/list.h>
#include <linux/mount.h>
#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
void change_mnt_propagation(struct vfsmount *, int);
#endif /* _LINUX_PNODE_H */