FS-Cache: Clear remaining page count on retrieval cancellation

[profile/ivi/kernel-adaptation-intel-automotive.git] / fs / fscache / page.c

diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 8a92b9f..ff000e5 100644 (file)
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -303,6 +303,17 @@ static int fscache_wait_for_deferred_lookup(struct fscache_cookie *cookie)
 }
 
 /*
+ * Handle cancellation of a pending retrieval op
+ */
+static void fscache_do_cancel_retrieval(struct fscache_operation *_op)
+{
+       struct fscache_retrieval *op =
+               container_of(_op, struct fscache_retrieval, op);
+
+       op->n_pages = 0;
+}
+
+/*
  * wait for an object to become active (or dead)
  */
 static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
@@ -320,7 +331,7 @@ static int fscache_wait_for_retrieval_activation(struct fscache_object *object,
        if (wait_on_bit(&op->op.flags, FSCACHE_OP_WAITING,
                        fscache_wait_bit_interruptible,
                        TASK_INTERRUPTIBLE) != 0) {
-               ret = fscache_cancel_op(&op->op);
+               ret = fscache_cancel_op(&op->op, fscache_do_cancel_retrieval);
                if (ret == 0)
                        return -ERESTARTSYS;
 
@@ -338,8 +349,8 @@ check_if_dead:
                return -ENOBUFS;
        }
        if (unlikely(fscache_object_is_dead(object))) {
-               pr_err("%s() = -ENOBUFS [obj dead %d]", __func__, op->op.state);
-               fscache_cancel_op(&op->op);
+               pr_err("%s() = -ENOBUFS [obj dead %d]\n", __func__, op->op.state);
+               fscache_cancel_op(&op->op, fscache_do_cancel_retrieval);
                fscache_stat(stat_object_dead);
                return -ENOBUFS;
        }