X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=block%2Fblk.h;h=d2e49af90db548ffa68e950bd800a48fdde79a1d;hb=c26156b2534c75bb3cdedf76f6ad1340971cf5bd;hp=de74254cb9161918121e10189fc095abfc897b1d;hpb=c7c22e4d5c1fdebfac4dba76de7d0338c2b0d832;p=safe%2Fjmp%2Flinux-2.6

diff --git a/block/blk.h b/block/blk.h
index de74254..d2e49af 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -17,6 +17,43 @@ void __blk_queue_free_tags(struct request_queue *q);
 
 void blk_unplug_work(struct work_struct *work);
 void blk_unplug_timeout(unsigned long data);
+void blk_rq_timed_out_timer(unsigned long data);
+void blk_delete_timer(struct request *);
+void blk_add_timer(struct request *);
+void __generic_unplug_device(struct request_queue *);
+
+/*
+ * Internal atomic flags for request handling
+ */
+enum rq_atomic_flags {
+	REQ_ATOM_COMPLETE = 0,
+};
+
+/*
+ * EH timer and IO completion will both attempt to 'grab' the request, make
+ * sure that only one of them suceeds
+ */
+static inline int blk_mark_rq_complete(struct request *rq)
+{
+	return test_and_set_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags);
+}
+
+static inline void blk_clear_rq_complete(struct request *rq)
+{
+	clear_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags);
+}
+
+#ifdef CONFIG_FAIL_IO_TIMEOUT
+int blk_should_fake_timeout(struct request_queue *);
+ssize_t part_timeout_show(struct device *, struct device_attribute *, char *);
+ssize_t part_timeout_store(struct device *, struct device_attribute *,
+				const char *, size_t);
+#else
+static inline int blk_should_fake_timeout(struct request_queue *q)
+{
+	return 0;
+}
+#endif
 
 struct io_context *current_io_context(gfp_t gfp_flags, int node);