3 files changed, 29 insertions, 9 deletions

diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index fcd268ce0674..009bd6149d99 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -3,6 +3,14 @@
 
 #include <linux/types.h>
 
+/*
+ * FMODE_EXEC is 0x20
+ * FMODE_NONOTIFY is 0x800000
+ * These cannot be used by userspace O_* until internal and external open
+ * flags are split.
+ * -Eric Paris
+ */
+
 #define O_ACCMODE       00000003
 #define O_RDONLY        00000000
 #define O_WRONLY        00000001
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 85fe89c43487..50ef4d4c95bf 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -90,6 +90,9 @@ struct inodes_stat_t {
 /* Expect random access pattern */
 #define FMODE_RANDOM            ((__force fmode_t)0x1000)
 
+/* File was opened by fanotify and shouldn't generate fanotify events */
+#define FMODE_NONOTIFY          ((__force fmode_t)8388608)
+
 /*
  * The below are the various read and write types that we support. Some of
  * them include behavioral modifiers that send information down to the
@@ -2508,7 +2511,8 @@ int proc_nr_files(struct ctl_table *table, int write,
 int __init get_filesystem_list(char *buf);
 
 #define ACC_MODE(x) ("\004\002\006\006"[(x)&O_ACCMODE])
-#define OPEN_FMODE(flag) ((__force fmode_t)((flag + 1) & O_ACCMODE))
+#define OPEN_FMODE(flag) ((__force fmode_t)(((flag + 1) & O_ACCMODE) | \
+                                            (flag & FMODE_NONOTIFY)))
 
 #endif /* __KERNEL__ */
 #endif /* _LINUX_FS_H */
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 62e93a9dd115..5184a2b786c1 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -165,8 +165,10 @@ static inline void fsnotify_access(struct file *file)
         if (S_ISDIR(inode->i_mode))
                 mask |= FS_IN_ISDIR;
 
-        fsnotify_parent(path, NULL, mask);
-        fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        if (!(file->f_mode & FMODE_NONOTIFY)) {
+                fsnotify_parent(path, NULL, mask);
+                fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        }
 }
 
 /*
@@ -181,8 +183,10 @@ static inline void fsnotify_modify(struct file *file)
         if (S_ISDIR(inode->i_mode))
                 mask |= FS_IN_ISDIR;
 
-        fsnotify_parent(path, NULL, mask);
-        fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        if (!(file->f_mode & FMODE_NONOTIFY)) {
+                fsnotify_parent(path, NULL, mask);
+                fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        }
 }
 
 /*
@@ -197,8 +201,10 @@ static inline void fsnotify_open(struct file *file)
         if (S_ISDIR(inode->i_mode))
                 mask |= FS_IN_ISDIR;
 
-        fsnotify_parent(path, NULL, mask);
-        fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        if (!(file->f_mode & FMODE_NONOTIFY)) {
+                fsnotify_parent(path, NULL, mask);
+                fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        }
 }
 
 /*
@@ -214,8 +220,10 @@ static inline void fsnotify_close(struct file *file)
         if (S_ISDIR(inode->i_mode))
                 mask |= FS_IN_ISDIR;
 
-        fsnotify_parent(path, NULL, mask);
-        fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        if (!(file->f_mode & FMODE_NONOTIFY)) {
+                fsnotify_parent(path, NULL, mask);
+                fsnotify(inode, mask, path, FSNOTIFY_EVENT_PATH, NULL, 0);
+        }
 }
 
 /*