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fanotify: fill in the metadata_len field on struct fanotify_event_metadata

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The fanotify_event_metadata now has a field which is supposed to
indicate the length of the metadata portion of the event.  Fill in that
field as well.

Based-in-part-on-patch-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris 2010-12-07 15:27:57 -05:00
parent 62731fa0c8
commit 7d13162332
1 changed files with 4 additions and 2 deletions
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6
fs/notify/fanotify/fanotify_user.c
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@ -116,6 +116,7 @@ static int fill_event_metadata(struct fsnotify_group *group,
group, metadata, event);
metadata->event_len = FAN_EVENT_METADATA_LEN;
metadata->metadata_len = FAN_EVENT_METADATA_LEN;
metadata->vers = FANOTIFY_METADATA_VERSION;
metadata->mask = event->mask & FAN_ALL_OUTGOING_EVENTS;
metadata->pid = pid_vnr(event->tgid);
@ -275,10 +276,11 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
goto out_close_fd;
ret = -EFAULT;
if (copy_to_user(buf, &fanotify_event_metadata, FAN_EVENT_METADATA_LEN))
if (copy_to_user(buf, &fanotify_event_metadata,
fanotify_event_metadata.event_len))
goto out_kill_access_response;
return FAN_EVENT_METADATA_LEN;
return fanotify_event_metadata.event_len;
out_kill_access_response:
remove_access_response(group, event, fd);