---

yaml --- r: 207688 b: refs/heads/master c: 4d92604 h: refs/heads/master v: v3
git-mirror · Jul 28, 2010 · aeaecc2 · aeaecc2
1 parent bf927a5
commit aeaecc2
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Showing 7 changed files with 47 additions and 8 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c9778a98e7440fb73e0d27b8155a688663a0d493
+refs/heads/master: 4d92604cc90aa18bbbe0f6e23b7a9fdb612836d3
diff --git a/trunk/fs/notify/fanotify/fanotify_user.c b/trunk/fs/notify/fanotify/fanotify_user.c
@@ -514,9 +514,10 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
 
 	if (flags & ~FAN_ALL_MARK_FLAGS)
 		return -EINVAL;
-	switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE)) {
+	switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) {
 	case FAN_MARK_ADD:
 	case FAN_MARK_REMOVE:
+	case FAN_MARK_FLUSH:
 		break;
 	default:
 		return -EINVAL;
@@ -545,7 +546,7 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
 	group = filp->private_data;
 
 	/* create/update an inode mark */
-	switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE)) {
+	switch (flags & (FAN_MARK_ADD | FAN_MARK_REMOVE | FAN_MARK_FLUSH)) {
 	case FAN_MARK_ADD:
 		if (flags & FAN_MARK_MOUNT)
 			ret = fanotify_add_vfsmount_mark(group, mnt, mask, flags);
@@ -558,6 +559,13 @@ SYSCALL_DEFINE(fanotify_mark)(int fanotify_fd, unsigned int flags,
 		else
 			ret = fanotify_remove_inode_mark(group, inode, mask, flags);
 		break;
+	case FAN_MARK_FLUSH:
+		if (flags & FAN_MARK_MOUNT)
+			fsnotify_clear_vfsmount_marks_by_group(group);
+		else
+			fsnotify_clear_inode_marks_by_group(group);
+		fsnotify_recalc_group_mask(group);
+		break;
 	default:
 		ret = -EINVAL;
 	}

diff --git a/trunk/fs/notify/inode_mark.c b/trunk/fs/notify/inode_mark.c
@@ -103,6 +103,14 @@ void fsnotify_clear_marks_by_inode(struct inode *inode)
 	}
 }
 
+/*
+ * Given a group clear all of the inode marks associated with that group.
+ */
+void fsnotify_clear_inode_marks_by_group(struct fsnotify_group *group)
+{
+	fsnotify_clear_marks_by_group_flags(group, FSNOTIFY_MARK_FLAG_INODE);
+}
+
 /*
  * given a group and inode, find the mark associated with that combination.
  * if found take a reference to that mark and return it, else return NULL

diff --git a/trunk/fs/notify/mark.c b/trunk/fs/notify/mark.c
@@ -270,18 +270,21 @@ int fsnotify_add_mark(struct fsnotify_mark *mark,
 }
 
 /*
- * Given a group, destroy all of the marks associated with that group.
+ * clear any marks in a group in which mark->flags & flags is true
  */
-void fsnotify_clear_marks_by_group(struct fsnotify_group *group)
+void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group,
+					 unsigned int flags)
 {
 	struct fsnotify_mark *lmark, *mark;
 	LIST_HEAD(free_list);
 
 	spin_lock(&group->mark_lock);
 	list_for_each_entry_safe(mark, lmark, &group->marks_list, g_list) {
-		list_add(&mark->free_g_list, &free_list);
-		list_del_init(&mark->g_list);
-		fsnotify_get_mark(mark);
+		if (mark->flags & flags) {
+			list_add(&mark->free_g_list, &free_list);
+			list_del_init(&mark->g_list);
+			fsnotify_get_mark(mark);
+		}
 	}
 	spin_unlock(&group->mark_lock);
 
@@ -291,6 +294,14 @@ void fsnotify_clear_marks_by_group(struct fsnotify_group *group)
 	}
 }
 
+/*
+ * Given a group, destroy all of the marks associated with that group.
+ */
+void fsnotify_clear_marks_by_group(struct fsnotify_group *group)
+{
+	fsnotify_clear_marks_by_group_flags(group, (unsigned int)-1);
+}
+
 void fsnotify_duplicate_mark(struct fsnotify_mark *new, struct fsnotify_mark *old)
 {
 	assert_spin_locked(&old->lock);

diff --git a/trunk/fs/notify/vfsmount_mark.c b/trunk/fs/notify/vfsmount_mark.c
@@ -51,6 +51,11 @@ void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
 	}
 }
 
+void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group)
+{
+	fsnotify_clear_marks_by_group_flags(group, FSNOTIFY_MARK_FLAG_VFSMOUNT);
+}
+
 /*
  * Recalculate the mask of events relevant to a given vfsmount locked.
  */

diff --git a/trunk/include/linux/fanotify.h b/trunk/include/linux/fanotify.h
@@ -32,6 +32,7 @@
 #define FAN_MARK_MOUNT		0x00000010
 #define FAN_MARK_IGNORED_MASK	0x00000020
 #define FAN_MARK_IGNORED_SURV_MODIFY	0x00000040
+#define FAN_MARK_FLUSH		0x00000080
 
 #define FAN_ALL_MARK_FLAGS	(FAN_MARK_ADD |\
 				 FAN_MARK_REMOVE |\

diff --git a/trunk/include/linux/fsnotify_backend.h b/trunk/include/linux/fsnotify_backend.h
@@ -384,6 +384,12 @@ extern int fsnotify_add_mark(struct fsnotify_mark *mark, struct fsnotify_group *
 			     struct inode *inode, struct vfsmount *mnt, int allow_dups);
 /* given a mark, flag it to be freed when all references are dropped */
 extern void fsnotify_destroy_mark(struct fsnotify_mark *mark);
+/* run all the marks in a group, and clear all of the vfsmount marks */
+extern void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group);
+/* run all the marks in a group, and clear all of the inode marks */
+extern void fsnotify_clear_inode_marks_by_group(struct fsnotify_group *group);
+/* run all the marks in a group, and clear all of the marks where mark->flags & flags is true*/
+extern void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group, unsigned int flags);
 /* run all the marks in a group, and flag them to be freed */
 extern void fsnotify_clear_marks_by_group(struct fsnotify_group *group);
 extern void fsnotify_get_mark(struct fsnotify_mark *mark);
-Original file line number
+Diff line change
@@ Expand Up / @@ -51,6 +51,11 @@ void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) @@
     	}
     }
+    void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group)
+    {
+    	fsnotify_clear_marks_by_group_flags(group, FSNOTIFY_MARK_FLAG_VFSMOUNT);
+    }
     /*
      * Recalculate the mask of events relevant to a given vfsmount locked.
      */
@@ Expand Down @@