fs: rcu-walk aware d_revalidate method

[cascardo/linux.git] / include / linux / fanotify.h

diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index e37f559..6c6133f 100644 (file)
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -6,17 +6,19 @@
 /* the following events that user-space can register for */
 #define FAN_ACCESS             0x00000001      /* File was accessed */
 #define FAN_MODIFY             0x00000002      /* File was modified */
-#define FAN_CLOSE_WRITE                0x00000008      /* Unwrittable file closed */
-#define FAN_CLOSE_NOWRITE      0x00000010      /* Writtable file closed */
+#define FAN_CLOSE_WRITE                0x00000008      /* Writtable file closed */
+#define FAN_CLOSE_NOWRITE      0x00000010      /* Unwrittable file closed */
 #define FAN_OPEN               0x00000020      /* File was opened */
 
-#define FAN_EVENT_ON_CHILD     0x08000000      /* interested in child events */
-
 #define FAN_Q_OVERFLOW         0x00004000      /* Event queued overflowed */
 
 #define FAN_OPEN_PERM          0x00010000      /* File open in perm check */
 #define FAN_ACCESS_PERM                0x00020000      /* File accessed in perm check */
 
+#define FAN_ONDIR              0x40000000      /* event occurred against dir */
+
+#define FAN_EVENT_ON_CHILD     0x08000000      /* interested in child events */
+
 /* helper events */
 #define FAN_CLOSE              (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
 
@@ -32,9 +34,11 @@
                                 FAN_CLASS_PRE_CONTENT)
 
 #define FAN_UNLIMITED_QUEUE    0x00000010
+#define FAN_UNLIMITED_MARKS    0x00000020
 
 #define FAN_ALL_INIT_FLAGS     (FAN_CLOEXEC | FAN_NONBLOCK | \
-                                FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE)
+                                FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
+                                FAN_UNLIMITED_MARKS)
 
 /* flags used for fanotify_modify_mark() */
 #define FAN_MARK_ADD           0x00000001
@@ -45,6 +49,10 @@
 #define FAN_MARK_IGNORED_MASK  0x00000020
 #define FAN_MARK_IGNORED_SURV_MODIFY   0x00000040
 #define FAN_MARK_FLUSH         0x00000080
+#ifdef __KERNEL__
+/* not valid from userspace, only kernel internal */
+#define FAN_MARK_ONDIR         0x00000100
+#endif
 
 #define FAN_ALL_MARK_FLAGS     (FAN_MARK_ADD |\
                                 FAN_MARK_REMOVE |\
@@ -75,11 +83,13 @@
                                 FAN_ALL_PERM_EVENTS |\
                                 FAN_Q_OVERFLOW)
 
-#define FANOTIFY_METADATA_VERSION      2
+#define FANOTIFY_METADATA_VERSION      3
 
 struct fanotify_event_metadata {
        __u32 event_len;
-       __u32 vers;
+       __u8 vers;
+       __u8 reserved;
+       __u16 metadata_len;
        __aligned_u64 mask;
        __s32 fd;
        __s32 pid;
@@ -88,11 +98,13 @@ struct fanotify_event_metadata {
 struct fanotify_response {
        __s32 fd;
        __u32 response;
-} __attribute__ ((packed));
+};
 
 /* Legit userspace responses to a _PERM event */
 #define FAN_ALLOW      0x01
 #define FAN_DENY       0x02
+/* No fd set in event */
+#define FAN_NOFD       -1
 
 /* Helper functions to deal with fanotify_event_metadata buffers */
 #define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata))