fsnotify/vfsmount: add fsnotify fields to struct vfsmount
This patch adds the list and mask fields needed to support vfsmount marks.
These are the same fields fsnotify needs on an inode. They are not used,
just declared and we note where the cleanup hook should be (the function is
not yet defined)
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/fs/namespace.c b/fs/namespace.c
index 88058de..a2d681a 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -29,6 +29,7 @@
#include <linux/log2.h>
#include <linux/idr.h>
#include <linux/fs_struct.h>
+#include <linux/fsnotify.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include "pnode.h"
@@ -150,6 +151,9 @@
INIT_LIST_HEAD(&mnt->mnt_share);
INIT_LIST_HEAD(&mnt->mnt_slave_list);
INIT_LIST_HEAD(&mnt->mnt_slave);
+#ifdef CONFIG_FSNOTIFY
+ INIT_HLIST_HEAD(&mnt->mnt_fsnotify_marks);
+#endif
#ifdef CONFIG_SMP
mnt->mnt_writers = alloc_percpu(int);
if (!mnt->mnt_writers)
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 60e84fd..e0bf869 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -163,9 +163,7 @@
if (!mnt)
return false;
- /* hook in this when mnt->mnt_fsnotify_mask is defined */
- /* return (test_mask & path->mnt->mnt_fsnotify_mask); */
- return false;
+ return (test_mask & mnt->mnt_fsnotify_mask);
}
/*
* This is the main call to fsnotify. The VFS calls into hook specific functions