diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 95983c744164a830661f105cd7b5ca54645a043f..1645fcfd9691c33bb58114546c262911edfdf25c 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -244,11 +244,13 @@ static int cachefiles_mark_object_active(struct cachefiles_cache *cache,
 
 	ASSERT(!test_bit(CACHEFILES_OBJECT_ACTIVE, &xobject->flags));
 
-	cache->cache.ops->put_object(&xobject->fscache, cachefiles_obj_put_wait_retry);
+	cache->cache.ops->put_object(&xobject->fscache,
+		(enum fscache_obj_ref_trace)cachefiles_obj_put_wait_retry);
 	goto try_again;
 
 requeue:
-	cache->cache.ops->put_object(&xobject->fscache, cachefiles_obj_put_wait_timeo);
+	cache->cache.ops->put_object(&xobject->fscache,
+		(enum fscache_obj_ref_trace)cachefiles_obj_put_wait_timeo);
 	_leave(" = -ETIMEDOUT");
 	return -ETIMEDOUT;
 }
@@ -336,7 +338,7 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
 try_again:
 	/* first step is to make up a grave dentry in the graveyard */
 	sprintf(nbuffer, "%08x%08x",
-		(uint32_t) get_seconds(),
+		(uint32_t) ktime_get_real_seconds(),
 		(uint32_t) atomic_inc_return(&cache->gravecounter));
 
 	/* do the multiway lock magic */
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 40f7595aad10f20666df7741b8ce8dce3db37b6e..8a577409d030b79757d546388bdbe88bbe124391 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -535,7 +535,10 @@ static int cachefiles_read_backing_file(struct cachefiles_object *object,
 					    netpage->index, cachefiles_gfp);
 		if (ret < 0) {
 			if (ret == -EEXIST) {
+				put_page(backpage);
+				backpage = NULL;
 				put_page(netpage);
+				netpage = NULL;
 				fscache_retrieval_complete(op, 1);
 				continue;
 			}
@@ -608,7 +611,10 @@ static int cachefiles_read_backing_file(struct cachefiles_object *object,
 					    netpage->index, cachefiles_gfp);
 		if (ret < 0) {
 			if (ret == -EEXIST) {
+				put_page(backpage);
+				backpage = NULL;
 				put_page(netpage);
+				netpage = NULL;
 				fscache_retrieval_complete(op, 1);
 				continue;
 			}
@@ -962,11 +968,8 @@ void cachefiles_uncache_page(struct fscache_object *_object, struct page *page)
 	__releases(&object->fscache.cookie->lock)
 {
 	struct cachefiles_object *object;
-	struct cachefiles_cache *cache;
 
 	object = container_of(_object, struct cachefiles_object, fscache);
-	cache = container_of(object->fscache.cache,
-			     struct cachefiles_cache, cache);
 
 	_enter("%p,{%lu}", object, page->index);
 
diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c
index 0a29a00aed2eba522c5b11ac509e8020d56d625b..511e6c68156a72355c63113205a20a1672c311e9 100644
--- a/fs/cachefiles/xattr.c
+++ b/fs/cachefiles/xattr.c
@@ -135,7 +135,8 @@ int cachefiles_update_object_xattr(struct cachefiles_object *object,
 	struct dentry *dentry = object->dentry;
 	int ret;
 
-	ASSERT(dentry);
+	if (!dentry)
+		return -ESTALE;
 
 	_enter("%p,#%d", object, auxdata->len);
 
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 9edc920f651f3929f9ad4f27e061df728c424794..6d9cb1719de5c010f20ef6ecea70aaec09c54a92 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -730,6 +730,9 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
 
 	if (awaken)
 		wake_up_bit(&cookie->flags, FSCACHE_COOKIE_INVALIDATING);
+	if (test_and_clear_bit(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags))
+		wake_up_bit(&cookie->flags, FSCACHE_COOKIE_LOOKING_UP);
+
 
 	/* Prevent a race with our last child, which has to signal EV_CLEARED
 	 * before dropping our spinlock.
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 34cf0fdd7dc76ac0ac754ad9af36d8a505aa9795..610815e3f1aaeb02c0a713128fd687a8adc78b5b 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -196,8 +196,7 @@ static inline void fscache_enqueue_retrieval(struct fscache_retrieval *op)
 static inline void fscache_retrieval_complete(struct fscache_retrieval *op,
 					      int n_pages)
 {
-	atomic_sub(n_pages, &op->n_pages);
-	if (atomic_read(&op->n_pages) <= 0)
+	if (atomic_sub_return_relaxed(n_pages, &op->n_pages) <= 0)
 		fscache_op_complete(&op->op, false);
 }