change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/fs/notify/notification.c
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@@ -1,19 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  Copyright (C) 2008 Red Hat, Inc., Eric Paris <eparis@redhat.com>
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- *
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- *  This program is free software; you can redistribute it and/or modify
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- *  it under the terms of the GNU General Public License as published by
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- *  the Free Software Foundation; either version 2, or (at your option)
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- *  any later version.
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- *
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- *  This program is distributed in the hope that it will be useful,
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- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *  GNU General Public License for more details.
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- *
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- *  You should have received a copy of the GNU General Public License
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- *  along with this program; see the file COPYING.  If not, write to
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- *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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  */
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 /*
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@@ -71,7 +58,7 @@
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 			    struct fsnotify_event *event)
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 {
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 	/* Overflow events are per-group and we don't want to free them */
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-	if (!event || event->mask == FS_Q_OVERFLOW)
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+	if (!event || event == group->overflow_event)
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 		return;
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 	/*
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 	 * If the event is still queued, we have a problem... Do an unreliable
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@@ -141,6 +128,18 @@
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 	return ret;
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 }
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+void fsnotify_remove_queued_event(struct fsnotify_group *group,
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+				  struct fsnotify_event *event)
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+{
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+	assert_spin_locked(&group->notification_lock);
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+	/*
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+	 * We need to init list head for the case of overflow event so that
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+	 * check in fsnotify_add_event() works
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+	 */
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+	list_del_init(&event->list);
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+	group->q_len--;
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+}
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+
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 /*
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  * Remove and return the first event from the notification list.  It is the
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  * responsibility of the caller to destroy the obtained event
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@@ -155,13 +154,7 @@
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 	event = list_first_entry(&group->notification_list,
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 				 struct fsnotify_event, list);
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-	/*
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-	 * We need to init list head for the case of overflow event so that
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-	 * check in fsnotify_add_event() works
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-	 */
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-	list_del_init(&event->list);
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-	group->q_len--;
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-
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+	fsnotify_remove_queued_event(group, event);
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 	return event;
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 }
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@@ -193,24 +186,4 @@
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 		spin_lock(&group->notification_lock);
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 	}
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 	spin_unlock(&group->notification_lock);
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-}
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-
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-/*
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- * fsnotify_create_event - Allocate a new event which will be sent to each
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- * group's handle_event function if the group was interested in this
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- * particular event.
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- *
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- * @inode the inode which is supposed to receive the event (sometimes a
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- *	parent of the inode to which the event happened.
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- * @mask what actually happened.
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- * @data pointer to the object which was actually affected
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- * @data_type flag indication if the data is a file, path, inode, nothing...
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- * @name the filename, if available
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- */
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-void fsnotify_init_event(struct fsnotify_event *event, struct inode *inode,
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-			 u32 mask)
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-{
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-	INIT_LIST_HEAD(&event->list);
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-	event->inode = inode;
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-	event->mask = mask;
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 }