change inotifyfs magic as the same magic is used for futexfs
Right now futexfs and inotifyfs have one magic 0xBAD1DEA, that looks a
little bit confusing. Use 0xBAD1DEA as magic for futexfs and 0x2BAD1DEA as
magic for inotifyfs.
Signed-off-by: Andrey Mirkin <major@openvz.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index 9bf2f6c..5e00933 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -31,6 +31,7 @@
#include <linux/list.h>
#include <linux/inotify.h>
#include <linux/syscalls.h>
+#include <linux/magic.h>
#include <asm/ioctls.h>
@@ -684,7 +685,8 @@
inotify_get_sb(struct file_system_type *fs_type, int flags,
const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_pseudo(fs_type, "inotify", NULL, 0xBAD1DEA, mnt);
+ return get_sb_pseudo(fs_type, "inotify", NULL,
+ INOTIFYFS_SUPER_MAGIC, mnt);
}
static struct file_system_type inotify_fs_type = {
diff --git a/include/linux/magic.h b/include/linux/magic.h
index 36cc20d..722d475 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -38,4 +38,7 @@
#define SMB_SUPER_MAGIC 0x517B
#define USBDEVICE_SUPER_MAGIC 0x9fa2
+#define FUTEXFS_SUPER_MAGIC 0xBAD1DEA
+#define INOTIFYFS_SUPER_MAGIC 0x2BAD1DEA
+
#endif /* __LINUX_MAGIC_H__ */
diff --git a/kernel/futex.c b/kernel/futex.c
index fcc94e7..d725676 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -52,6 +52,7 @@
#include <linux/syscalls.h>
#include <linux/signal.h>
#include <linux/module.h>
+#include <linux/magic.h>
#include <asm/futex.h>
#include "rtmutex_common.h"
@@ -2080,7 +2081,7 @@
int flags, const char *dev_name, void *data,
struct vfsmount *mnt)
{
- return get_sb_pseudo(fs_type, "futex", NULL, 0xBAD1DEA, mnt);
+ return get_sb_pseudo(fs_type, "futex", NULL, FUTEXFS_SUPER_MAGIC, mnt);
}
static struct file_system_type futex_fs_type = {