[PATCH] blktrace: fix read-ahead bit

It should be toggling the same bit on and off, fix it up. Signed-off-by: Jens Axboe <axboe@suse.de>
DX37 · Jul 25, 2006 · ad01b1c · ad01b1c
1 parent 7b30f09
commit ad01b1c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/block/blktrace.c b/block/blktrace.c
@@ -80,7 +80,7 @@ static u32 bio_act[5] __read_mostly = { 0, BLK_TC_ACT(BLK_TC_BARRIER), BLK_TC_AC
 #define trace_sync_bit(rw)	\
 	(((rw) & (1 << BIO_RW_SYNC)) >> (BIO_RW_SYNC - 1))
 #define trace_ahead_bit(rw)	\
-	(((rw) & (1 << BIO_RW_AHEAD)) << (BIO_RW_AHEAD - 0))
+	(((rw) & (1 << BIO_RW_AHEAD)) << (2 - BIO_RW_AHEAD))
 
 /*
  * The worker for the various blk_add_trace*() types. Fills out a