ll_merge_requests_fn can update bi_hw_*_size in one case where we end
up not merging. This is wrong.
Signed-off-by: Neil Brown <[EMAIL PROTECTED]>
### Diffstat output
./block/ll_rw_blk.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff .prev/block/ll_rw_blk.c ./block/ll_rw_blk.c
--- .prev/block/ll_rw_blk.c 2007-08-16 14:57:39.000000000 +1000
+++ ./block/ll_rw_blk.c 2007-08-16 15:02:29.000000000 +1000
@@ -1518,11 +1518,13 @@ static int ll_merge_requests_fn(struct r
/*
* propagate the combined length to the end of the requests
*/
+ total_hw_segments--;
+ if (total_hw_segments > q->max_hw_segments)
+ return 0;
if (req->nr_hw_segments == 1)
req->bio->bi_hw_front_size = len;
if (next->nr_hw_segments == 1)
next->biotail->bi_hw_back_size = len;
- total_hw_segments--;
}
if (total_hw_segments > q->max_hw_segments)
-
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