[GFS2] Mark metadata reads for blktrace

Mark the metadata reads so that blktrace knows what they are.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c
index 7317991..d0d981d 100644
--- a/fs/gfs2/meta_io.c
+++ b/fs/gfs2/meta_io.c
@@ -17,6 +17,7 @@
 #include <linux/writeback.h>
 #include <linux/swap.h>
 #include <linux/delay.h>
+#include <linux/bio.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/lm_interface.h>
 
@@ -385,7 +386,7 @@
 {
 	*bhp = getbuf(gl->gl_sbd, gl->gl_aspace, blkno, CREATE);
 	if (!buffer_uptodate(*bhp))
-		ll_rw_block(READ, 1, bhp);
+		ll_rw_block(READ_META, 1, bhp);
 	if (flags & DIO_WAIT) {
 		int error = gfs2_meta_wait(gl->gl_sbd, *bhp);
 		if (error) {
@@ -659,7 +660,7 @@
 	} else {
 		u32 mtype = height ? GFS2_METATYPE_IN : GFS2_METATYPE_DI;
 		if (!buffer_uptodate(bh)) {
-			ll_rw_block(READ, 1, &bh);
+			ll_rw_block(READ_META, 1, &bh);
 			if (gfs2_meta_wait(sdp, bh))
 				goto err;
 		}
@@ -712,7 +713,7 @@
 	if (buffer_uptodate(first_bh))
 		goto out;
 	if (!buffer_locked(first_bh))
-		ll_rw_block(READ, 1, &first_bh);
+		ll_rw_block(READ_META, 1, &first_bh);
 
 	dblock++;
 	extlen--;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index c0a3c9a..c69b94a 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -43,6 +43,7 @@
 #include <linux/buffer_head.h>
 #include <linux/sort.h>
 #include <linux/fs.h>
+#include <linux/bio.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/lm_interface.h>
 
@@ -609,7 +610,7 @@
 		set_buffer_uptodate(bh);
 
 	if (!buffer_uptodate(bh)) {
-		ll_rw_block(READ, 1, &bh);
+		ll_rw_block(READ_META, 1, &bh);
 		wait_on_buffer(bh);
 		if (!buffer_uptodate(bh))
 			goto unlock;