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authorIngo Molnar <mingo@elte.hu>2009-08-25 10:04:27 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-25 10:04:32 +0200
commitdaedc71836e5a398fd0cc0e12c5cb43539478485 (patch)
treec56567a92017679e57195cef992d4a5561c20e0e /fs/notify/notification.c
parentirq: Remove superfluous NULL pointer check in check_irq_resend() (diff)
parentLinux 2.6.31-rc7 (diff)
downloadlinux-daedc71836e5a398fd0cc0e12c5cb43539478485.tar.xz
linux-daedc71836e5a398fd0cc0e12c5cb43539478485.zip
Merge commit 'v2.6.31-rc7' into irq/core
Merge reason: move from an -rc2 base to -rc7. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/notify/notification.c')
-rw-r--r--fs/notify/notification.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index 959b73e756fd..3816d5750dd5 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -136,18 +136,28 @@ static bool event_compare(struct fsnotify_event *old, struct fsnotify_event *new
{
if ((old->mask == new->mask) &&
(old->to_tell == new->to_tell) &&
- (old->data_type == new->data_type)) {
+ (old->data_type == new->data_type) &&
+ (old->name_len == new->name_len)) {
switch (old->data_type) {
case (FSNOTIFY_EVENT_INODE):
- if (old->inode == new->inode)
+ /* remember, after old was put on the wait_q we aren't
+ * allowed to look at the inode any more, only thing
+ * left to check was if the file_name is the same */
+ if (old->name_len &&
+ !strcmp(old->file_name, new->file_name))
return true;
break;
case (FSNOTIFY_EVENT_PATH):
if ((old->path.mnt == new->path.mnt) &&
(old->path.dentry == new->path.dentry))
return true;
+ break;
case (FSNOTIFY_EVENT_NONE):
- return true;
+ if (old->mask & FS_Q_OVERFLOW)
+ return true;
+ else if (old->mask & FS_IN_IGNORED)
+ return false;
+ return false;
};
}
return false;
@@ -165,9 +175,7 @@ int fsnotify_add_notify_event(struct fsnotify_group *group, struct fsnotify_even
struct list_head *list = &group->notification_list;
struct fsnotify_event_holder *last_holder;
struct fsnotify_event *last_event;
-
- /* easy to tell if priv was attached to the event */
- INIT_LIST_HEAD(&priv->event_list);
+ int ret = 0;
/*
* There is one fsnotify_event_holder embedded inside each fsnotify_event.
@@ -188,6 +196,7 @@ alloc_holder:
if (group->q_len >= group->max_events) {
event = &q_overflow_event;
+ ret = -EOVERFLOW;
/* sorry, no private data on the overflow event */
priv = NULL;
}
@@ -229,7 +238,7 @@ alloc_holder:
mutex_unlock(&group->notification_mutex);
wake_up(&group->notification_waitq);
- return 0;
+ return ret;
}
/*
@@ -339,18 +348,19 @@ static void initialize_event(struct fsnotify_event *event)
* @name the filename, if available
*/
struct fsnotify_event *fsnotify_create_event(struct inode *to_tell, __u32 mask, void *data,
- int data_type, const char *name, u32 cookie)
+ int data_type, const char *name, u32 cookie,
+ gfp_t gfp)
{
struct fsnotify_event *event;
- event = kmem_cache_alloc(fsnotify_event_cachep, GFP_KERNEL);
+ event = kmem_cache_alloc(fsnotify_event_cachep, gfp);
if (!event)
return NULL;
initialize_event(event);
if (name) {
- event->file_name = kstrdup(name, GFP_KERNEL);
+ event->file_name = kstrdup(name, gfp);
if (!event->file_name) {
kmem_cache_free(fsnotify_event_cachep, event);
return NULL;