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fanotify: generalize fanotify_should_send_event() 

Use fsnotify_foreach_obj_type macros to generalize the code that filters
events by marks mask and ignored_mask.

This is going to be used for adding mark of super block object type.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein 2018-04-20 16:10:54 -07:00 committed by Jan Kara
parent 3dca1a7494
commit 837a393438
1 changed files with 18 additions and 18 deletions
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36
fs/notify/fanotify/fanotify.c
View File

@ -91,14 +91,13 @@ static bool fanotify_should_send_event(struct fsnotify_iter_info *iter_info,
u32 event_mask, const void *data,
int data_type)
{
struct fsnotify_mark *inode_mark = fsnotify_iter_inode_mark(iter_info);
struct fsnotify_mark *vfsmnt_mark = fsnotify_iter_vfsmount_mark(iter_info);
__u32 marks_mask = 0, marks_ignored_mask = 0;
const struct path *path = data;
struct fsnotify_mark *mark;
int type;
pr_debug("%s: inode_mark=%p vfsmnt_mark=%p mask=%x data=%p"
" data_type=%d\n", __func__, inode_mark, vfsmnt_mark,
event_mask, data, data_type);
pr_debug("%s: report_mask=%x mask=%x data=%p data_type=%d\n",
__func__, iter_info->report_mask, event_mask, data, data_type);
/* if we don't have enough info to send an event to userspace say no */
if (data_type != FSNOTIFY_EVENT_PATH)
@ -109,20 +108,21 @@ static bool fanotify_should_send_event(struct fsnotify_iter_info *iter_info,
!d_can_lookup(path->dentry))
return false;
/*
* if the event is for a child and this inode doesn't care about
* events on the child, don't send it!
*/
if (inode_mark &&
(!(event_mask & FS_EVENT_ON_CHILD) ||
(inode_mark->mask & FS_EVENT_ON_CHILD))) {
marks_mask |= inode_mark->mask;
marks_ignored_mask |= inode_mark->ignored_mask;
}
fsnotify_foreach_obj_type(type) {
if (!fsnotify_iter_should_report_type(iter_info, type))
continue;
mark = iter_info->marks[type];
/*
* if the event is for a child and this inode doesn't care about
* events on the child, don't send it!
*/
if (type == FSNOTIFY_OBJ_TYPE_INODE &&
(event_mask & FS_EVENT_ON_CHILD) &&
!(mark->mask & FS_EVENT_ON_CHILD))
continue;
if (vfsmnt_mark) {
marks_mask |= vfsmnt_mark->mask;
marks_ignored_mask |= vfsmnt_mark->ignored_mask;
marks_mask |= mark->mask;
marks_ignored_mask |= mark->ignored_mask;
}
if (d_is_dir(path->dentry) &&