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-rw-r--r--fs/notify/fanotify/fanotify.c5
-rw-r--r--fs/notify/fanotify/fanotify_user.c12
-rw-r--r--include/linux/fanotify.h10
3 files changed, 25 insertions, 2 deletions
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 8d98e1f5817..b04f88eed09 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -131,6 +131,7 @@ static int fanotify_handle_event(struct fsnotify_group *group,
BUILD_BUG_ON(FAN_Q_OVERFLOW != FS_Q_OVERFLOW);
BUILD_BUG_ON(FAN_OPEN_PERM != FS_OPEN_PERM);
BUILD_BUG_ON(FAN_ACCESS_PERM != FS_ACCESS_PERM);
+ BUILD_BUG_ON(FAN_ONDIR != FS_ISDIR);
pr_debug("%s: group=%p event=%p\n", __func__, group, event);
@@ -195,6 +196,10 @@ static bool fanotify_should_send_event(struct fsnotify_group *group,
BUG();
}
+ if (S_ISDIR(path->dentry->d_inode->i_mode) &&
+ (marks_ignored_mask & FS_ISDIR))
+ return false;
+
if (event_mask & marks_mask & ~marks_ignored_mask)
return true;
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index a7d9369482d..ff1a908c970 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -570,6 +570,12 @@ static __u32 fanotify_mark_add_to_mask(struct fsnotify_mark *fsn_mark,
if (flags & FAN_MARK_IGNORED_SURV_MODIFY)
fsn_mark->flags |= FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY;
}
+
+ if (!(flags & FAN_MARK_ONDIR)) {
+ __u32 tmask = fsn_mark->ignored_mask | FAN_ONDIR;
+ fsnotify_set_mark_ignored_mask_locked(fsn_mark, tmask);
+ }
+
spin_unlock(&fsn_mark->lock);
return mask & ~oldmask;
@@ -766,6 +772,12 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
default:
return -EINVAL;
}
+
+ if (mask & FAN_ONDIR) {
+ flags |= FAN_MARK_ONDIR;
+ mask &= ~FAN_ONDIR;
+ }
+
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
if (mask & ~(FAN_ALL_EVENTS | FAN_ALL_PERM_EVENTS | FAN_EVENT_ON_CHILD))
#else
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 7592a366a57..5e0400a80c3 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -10,13 +10,15 @@
#define FAN_CLOSE_NOWRITE 0x00000010 /* Writtable 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 */
@@ -47,6 +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 |\