static int au_hin_alloc(struct au_hnotify *hn, struct inode *h_inode)
{
int err;
s32 wd;
struct inotify_watch *watch;
err = -EEXIST;
wd = inotify_find_watch(au_hin_handle, h_inode, &watch);
if (wd >= 0) {
put_inotify_watch(watch);
goto out;
}
err = 0;
inotify_init_watch(&hn->hn_watch);
wd = inotify_add_watch(au_hin_handle, &hn->hn_watch, h_inode,
AuHinMask);
if (unlikely(wd < 0)) {
err = wd;
put_inotify_watch(&hn->hn_watch);
}
out:
return err;
}
static void audit_remove_watch(struct audit_watch *watch)
{
list_del(&watch->wlist);
put_inotify_watch(&watch->parent->wdata);
watch->parent = NULL;
audit_put_watch(watch); /* match initial get */
}
static void aufs_inotify(struct inotify_watch *watch, u32 wd __maybe_unused,
u32 mask, u32 cookie __maybe_unused,
const char *h_child_name, struct inode *h_child_inode)
{
struct au_hnotify *hnotify;
struct qstr h_child_qstr = {
.name = h_child_name
};
/* if IN_UNMOUNT happens, there must be another bug */
AuDebugOn(mask & IN_UNMOUNT);
if (mask & (IN_IGNORED | IN_UNMOUNT)) {
put_inotify_watch(watch);
return;
}
#ifdef AuDbgHnotify
au_debug(1);
if (1 || !h_child_name || strcmp(h_child_name, AUFS_XINO_FNAME)) {
AuDbg("i%lu, wd %d, mask 0x%x %s, cookie 0x%x, hcname %s,"
" hi%lu\n",
watch->inode->i_ino, wd, mask, in_name(mask), cookie,
h_child_name ? h_child_name : "",
h_child_inode ? h_child_inode->i_ino : 0);
WARN_ON(1);
}
au_debug(0);
#endif
if (h_child_name)
h_child_qstr.len = strlen(h_child_name);
hnotify = container_of(watch, struct au_hnotify, hn_watch);
au_hnotify(watch->inode, hnotify, mask, &h_child_qstr, h_child_inode);
}
