[BLOCK] Fix failing compile with BLK_DEV_IO_TRACE=n
I get a compilation error in sglist-arch branch
with BLK_DEV_IO_TRACE=n:
CC block/compat_ioctl.o
/usr0/export/dev/bharrosh/git/pub/linux-2.6-block/block/compat_ioctl.c: In
function ?compat_blk_trace_setup?:
/usr0/export/dev/bharrosh/git/pub/linux-2.6-block/block/compat_ioctl.c:568:
error: expected expression before ?do?
make[2]: *** [block/compat_ioctl.o] Error 1
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 972093b..2e105a1 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -290,7 +290,12 @@
#define blk_add_trace_generic(q, rq, rw, what) do { } while (0)
#define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0)
#define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0)
-#define do_blk_trace_setup(q, bdev, buts) do {} while (0)
+static inline int do_blk_trace_setup(struct request_queue *q,
+ struct block_device *bdev,
+ struct blk_user_trace_setup *buts)
+{
+ return 0;
+}
#endif /* CONFIG_BLK_DEV_IO_TRACE */
#endif /* __KERNEL__ */
#endif