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fsnotify: include pathnames with entries when possible

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When inotify wants to send events to a directory about a child it includes
the name of the original file.  This patch collects that filename and makes
it available for notification.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Eric Paris 2009-05-21 17:01:43 -04:00
parent a2d8bc6cb4
commit 62ffe5dfba
4 changed files with 41 additions and 21 deletions
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16
fs/notify/notification.c
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@ -78,6 +78,7 @@ void fsnotify_put_event(struct fsnotify_event *event)
if (event->data_type == FSNOTIFY_EVENT_PATH)
path_put(&event->path);
kfree(event->file_name);
kmem_cache_free(fsnotify_event_cachep, event);
}
}
@ -262,6 +263,9 @@ static void initialize_event(struct fsnotify_event *event)
event->data_type = FSNOTIFY_EVENT_NONE;
event->to_tell = NULL;
event->file_name = NULL;
event->name_len = 0;
}
/*
@ -274,9 +278,10 @@ static void initialize_event(struct fsnotify_event *event)
* @mask what actually happened.
* @data pointer to the object which was actually affected
* @data_type flag indication if the data is a file, path, inode, nothing...
* @name the filename, if available
*/
struct fsnotify_event *fsnotify_create_event(struct inode *to_tell, __u32 mask,
void *data, int data_type)
void *data, int data_type, const char *name)
{
struct fsnotify_event *event;
@ -285,6 +290,15 @@ struct fsnotify_event *fsnotify_create_event(struct inode *to_tell, __u32 mask,
return NULL;
initialize_event(event);
if (name) {
event->file_name = kstrdup(name, GFP_KERNEL);
if (!event->file_name) {
kmem_cache_free(fsnotify_event_cachep, event);
return NULL;
}
event->name_len = strlen(event->file_name);
}
event->to_tell = to_tell;
switch (data_type) {