From 03e06e68ff76294e53ffa898cb844d2a997b043e Mon Sep 17 00:00:00 2001 From: Ram Pai Date: Mon, 7 Nov 2005 17:19:33 -0500 Subject: [PATCH] introduce shared mounts 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 Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/linux/mount.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/mount.h') diff --git a/include/linux/mount.h b/include/linux/mount.h index 8eadd3b6589..2582559718f 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -20,6 +20,7 @@ #define MNT_NOSUID 0x01 #define MNT_NODEV 0x02 #define MNT_NOEXEC 0x04 +#define MNT_SHARED 0x10 /* if the vfsmount is a shared mount */ #define MNT_PNODE_MASK 0x30 /* propogation flag mask */ struct vfsmount { @@ -36,6 +37,7 @@ struct vfsmount { char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */ struct list_head mnt_list; struct list_head mnt_expire; /* link in fs-specific expiry list */ + struct list_head mnt_share; /* circular list of shared mounts */ struct namespace *mnt_namespace; /* containing namespace */ int mnt_pinned; }; -- cgit v1.2.3