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authorAl Viro <viro@zeniv.linux.org.uk>2019-07-04 22:57:51 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2019-07-17 04:52:37 +0200
commit56cbb429d911991170fe867b4bba14f0efed5829 (patch)
tree0a50d1ccc57136faa844be4e616c9ed7c69322be /fs/mount.h
parentget rid of detach_mnt() (diff)
downloadlinux-56cbb429d911991170fe867b4bba14f0efed5829.tar.xz
linux-56cbb429d911991170fe867b4bba14f0efed5829.zip
switch the remnants of releasing the mountpoint away from fs_pin
We used to need rather convoluted ordering trickery to guarantee that dput() of ex-mountpoints happens before the final mntput() of the same. Since we don't need that anymore, there's no point playing with fs_pin for that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/mount.h')
-rw-r--r--fs/mount.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/mount.h b/fs/mount.h
index 84aa8cdf4971..711a4093e475 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -58,7 +58,10 @@ struct mount {
struct mount *mnt_master; /* slave is on master->mnt_slave_list */
struct mnt_namespace *mnt_ns; /* containing namespace */
struct mountpoint *mnt_mp; /* where is it mounted */
- struct hlist_node mnt_mp_list; /* list mounts with the same mountpoint */
+ union {
+ struct hlist_node mnt_mp_list; /* list mounts with the same mountpoint */
+ struct hlist_node mnt_umount;
+ };
struct list_head mnt_umounting; /* list entry for umount propagation */
#ifdef CONFIG_FSNOTIFY
struct fsnotify_mark_connector __rcu *mnt_fsnotify_marks;
@@ -68,7 +71,7 @@ struct mount {
int mnt_group_id; /* peer group identifier */
int mnt_expiry_mark; /* true if marked for expiry */
struct hlist_head mnt_pins;
- struct fs_pin mnt_umount;
+ struct hlist_head mnt_stuck_children;
} __randomize_layout;
#define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */