Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...

[safe/jmp/linux-2.6] / include / linux / blktrace_api.h

diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 267edc4..7e4350e 100644 (file)
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -116,9 +116,9 @@ struct blk_io_trace {
  * The remap event
  */
 struct blk_io_trace_remap {
-       __be32 device;
        __be32 device_from;
-       __be64 sector;
+       __be32 device_to;
+       __be64 sector_from;
 };
 
 enum {
@@ -198,6 +198,7 @@ extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
                           char __user *arg);
 extern int blk_trace_startstop(struct request_queue *q, int start);
 extern int blk_trace_remove(struct request_queue *q);
+extern int blk_trace_init_sysfs(struct device *dev);
 
 extern struct attribute_group blk_trace_attr_group;
 
@@ -210,7 +211,25 @@ extern struct attribute_group blk_trace_attr_group;
 # define blk_trace_startstop(q, start)                 (-ENOTTY)
 # define blk_trace_remove(q)                           (-ENOTTY)
 # define blk_add_trace_msg(q, fmt, ...)                        do { } while (0)
+static inline int blk_trace_init_sysfs(struct device *dev)
+{
+       return 0;
+}
+
 #endif /* CONFIG_BLK_DEV_IO_TRACE */
 
+#if defined(CONFIG_EVENT_TRACING) && defined(CONFIG_BLOCK)
+
+static inline int blk_cmd_buf_len(struct request *rq)
+{
+       return blk_pc_request(rq) ? rq->cmd_len * 3 : 1;
+}
+
+extern void blk_dump_cmd(char *buf, struct request *rq);
+extern void blk_fill_rwbs(char *rwbs, u32 rw, int bytes);
+extern void blk_fill_rwbs_rq(char *rwbs, struct request *rq);
+
+#endif /* CONFIG_EVENT_TRACING && CONFIG_BLOCK */
+
 #endif /* __KERNEL__ */
 #endif