[PATCH] dcache: fix implicit wait.h include in

To fix: In file included from fs/notify/fsnotify.c:19:0: ./include/linux/dcache.h:103:3: error: unknown type name ‘wait_queue_head_t’ wait_queue_head_t *d_wait; /* in-lookup ones only */ ^ ./include/linux/dcache.h:233:6: error: unknown type name ‘wait_queue_head_t’

[PATCH] dcache: fix implicit wait.h include in

To fix: In file included from fs/notify/fsnotify.c:19:0: ./include/linux/dcache.h:103:3: error: unknown type name ‘wait_queue_head_t’ wait_queue_head_t *d_wait; /* in-lookup ones only */ ^ ./include/linux/dcache.h:233:6: error: unknown type name ‘wait_queue_head_t’