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Diffstat (limited to 'fs/notify/inotify/inotify_user.c')
-rw-r--r--fs/notify/inotify/inotify_user.c28
1 files changed, 11 insertions, 17 deletions
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 228a2c2ad8d7..e0f7c1241a6a 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -364,22 +364,20 @@ static int inotify_add_to_idr(struct idr *idr, spinlock_t *idr_lock,
{
int ret;
- do {
- if (unlikely(!idr_pre_get(idr, GFP_KERNEL)))
- return -ENOMEM;
+ idr_preload(GFP_KERNEL);
+ spin_lock(idr_lock);
- spin_lock(idr_lock);
- ret = idr_get_new_above(idr, i_mark, *last_wd + 1,
- &i_mark->wd);
+ ret = idr_alloc(idr, i_mark, *last_wd + 1, 0, GFP_NOWAIT);
+ if (ret >= 0) {
/* we added the mark to the idr, take a reference */
- if (!ret) {
- *last_wd = i_mark->wd;
- fsnotify_get_mark(&i_mark->fsn_mark);
- }
- spin_unlock(idr_lock);
- } while (ret == -EAGAIN);
+ i_mark->wd = ret;
+ *last_wd = i_mark->wd;
+ fsnotify_get_mark(&i_mark->fsn_mark);
+ }
- return ret;
+ spin_unlock(idr_lock);
+ idr_preload_end();
+ return ret < 0 ? ret : 0;
}
static struct inotify_inode_mark *inotify_idr_find_locked(struct fsnotify_group *group,
@@ -576,8 +574,6 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
/* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
- if (unlikely(!(mask & IN_ALL_EVENTS)))
- return -EINVAL;
fsn_mark = fsnotify_find_inode_mark(group, inode);
if (!fsn_mark)
@@ -629,8 +625,6 @@ static int inotify_new_watch(struct fsnotify_group *group,
/* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
- if (unlikely(!(mask & IN_ALL_EVENTS)))
- return -EINVAL;
tmp_i_mark = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
if (unlikely(!tmp_i_mark))