switch the IO-triggering parts of umount to fs_pin
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/mount.h b/fs/mount.h
index 0ad6f76..6a61c2b 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -2,6 +2,7 @@
#include <linux/seq_file.h>
#include <linux/poll.h>
#include <linux/ns_common.h>
+#include <linux/fs_pin.h>
struct mnt_namespace {
atomic_t count;
@@ -62,7 +63,8 @@
int mnt_group_id; /* peer group identifier */
int mnt_expiry_mark; /* true if marked for expiry */
struct hlist_head mnt_pins;
- struct path mnt_ex_mountpoint;
+ struct fs_pin mnt_umount;
+ struct dentry *mnt_ex_mountpoint;
};
#define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */