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[PATCH] blktrace: fix read-ahead bit
author
Milton Miller
<miltonm@bga.com>
Tue, 25 Jul 2006 13:04:13 +0000
(15:04 +0200)
committer
Jens Axboe
<axboe@suse.de>
Tue, 25 Jul 2006 13:04:13 +0000
(15:04 +0200)
It should be toggling the same bit on and off, fix it up.
Signed-off-by: Jens Axboe <axboe@suse.de>
block/blktrace.c
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diff --git
a/block/blktrace.c
b/block/blktrace.c
index
b8c0702
..
265f7a8
100644
(file)
--- 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