From 32301920f44a9334f57dd94bebfc6e593b99ad47 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 25 Nov 2011 00:10:28 -0500 Subject: [PATCH] vfs: and now we can make ->mnt_master point to struct mount Signed-off-by: Al Viro --- fs/mount.h | 2 +- fs/namespace.c | 4 ++-- fs/pnode.c | 18 +++++++++--------- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/fs/mount.h b/fs/mount.h index 7071d8fa9307..d4db4c7e1815 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -20,7 +20,7 @@ struct mount { struct list_head mnt_mounts; /* list of children, anchored here */ struct list_head mnt_child; /* and going through their mnt_child */ /* yet to be moved - up to mnt_slave */ - struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */ + struct mount *mnt_master; /* slave is on master->mnt_slave_list */ }; static inline struct mount *real_mount(struct vfsmount *mnt) diff --git a/fs/namespace.c b/fs/namespace.c index 3439042fc9f2..847b7240c512 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -715,7 +715,7 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, if (flag & CL_SLAVE) { list_add(&mnt->mnt.mnt_slave, &old->mnt.mnt_slave_list); - mnt->mnt_master = &old->mnt; + mnt->mnt_master = old; CLEAR_MNT_SHARED(&mnt->mnt); } else if (!(flag & CL_PRIVATE)) { if ((flag & CL_MAKE_SHARED) || IS_MNT_SHARED(&old->mnt)) @@ -1052,7 +1052,7 @@ static int show_mountinfo(struct seq_file *m, void *v) if (IS_MNT_SHARED(mnt)) seq_printf(m, " shared:%i", mnt->mnt_group_id); if (IS_MNT_SLAVE(r)) { - int master = r->mnt_master->mnt_group_id; + int master = r->mnt_master->mnt.mnt_group_id; int dom = get_dominating_id(r, &p->root); seq_printf(m, " master:%i", master); if (dom && dom != master) diff --git a/fs/pnode.c b/fs/pnode.c index 3ac44d15fe58..9bf22b61f8fb 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -55,7 +55,7 @@ int get_dominating_id(struct mount *mnt, const struct path *root) { struct mount *m; - for (m = real_mount(mnt->mnt_master); m != NULL; m = real_mount(m->mnt_master)) { + for (m = mnt->mnt_master; m != NULL; m = m->mnt_master) { struct mount *d = get_peer_under_root(m, mnt->mnt.mnt_ns, root); if (d) return d->mnt.mnt_group_id; @@ -66,7 +66,7 @@ int get_dominating_id(struct mount *mnt, const struct path *root) static int do_make_slave(struct mount *mnt) { - struct mount *peer_mnt = mnt, *master = real_mount(mnt->mnt_master); + struct mount *peer_mnt = mnt, *master = mnt->mnt_master; struct mount *slave_mnt; /* @@ -93,7 +93,7 @@ static int do_make_slave(struct mount *mnt) if (master) { list_for_each_entry(slave_mnt, &mnt->mnt.mnt_slave_list, mnt.mnt_slave) - slave_mnt->mnt_master = &master->mnt; + slave_mnt->mnt_master = master; list_move(&mnt->mnt.mnt_slave, &master->mnt.mnt_slave_list); list_splice(&mnt->mnt.mnt_slave_list, master->mnt.mnt_slave_list.prev); INIT_LIST_HEAD(&mnt->mnt.mnt_slave_list); @@ -106,7 +106,7 @@ static int do_make_slave(struct mount *mnt) slave_mnt->mnt_master = NULL; } } - mnt->mnt_master = &master->mnt; + mnt->mnt_master = master; CLEAR_MNT_SHARED(&mnt->mnt); return 0; } @@ -149,9 +149,9 @@ static struct mount *propagation_next(struct mount *m, return first_slave(m); while (1) { - struct mount *master = real_mount(m->mnt_master); + struct mount *master = m->mnt_master; - if (&master->mnt == origin->mnt_master) { + if (master == origin->mnt_master) { struct mount *next = next_peer(m); return (next == origin) ? NULL : next; } else if (m->mnt.mnt_slave.next != &master->mnt.mnt_slave_list) @@ -179,11 +179,11 @@ static struct mount *get_source(struct mount *dest, struct mount *p_last_src = NULL; struct mount *p_last_dest = NULL; - while (&last_dest->mnt != dest->mnt_master) { + while (last_dest != dest->mnt_master) { p_last_dest = last_dest; p_last_src = last_src; - last_dest = real_mount(last_dest->mnt_master); - last_src = real_mount(last_src->mnt_master); + last_dest = last_dest->mnt_master; + last_src = last_src->mnt_master; } if (p_last_dest) { -- GitLab