Re: md: md6_raid5 crash 2.6.20

[Neil Brown]

On Monday February 12, marcm@xxxxxxxxxxxxxxxx wrote:
> 
> Thanks for the quick response Neil unfortunately the kernel doesn't build with
> this patch due to a missing symbol:
> 
> WARNING: "blk_recount_segments" [drivers/md/raid456.ko] undefined!
> 
> Is that in another file that needs patching or within raid5.c?

Yes.  I keep forgetting about that bit. Sorry.


diff -puN block/ll_rw_blk.c~md-fix-various-bugs-with-aligned-reads-in-raid5-fix block/ll_rw_blk.c
--- a/block/ll_rw_blk.c~md-fix-various-bugs-with-aligned-reads-in-raid5-fix
+++ a/block/ll_rw_blk.c
@@ -1264,7 +1264,7 @@ new_hw_segment:
 	bio->bi_hw_segments = nr_hw_segs;
 	bio->bi_flags |= (1 << BIO_SEG_VALID);
 }
-
+EXPORT_SYMBOL(blk_recount_segments);
 
 static int blk_phys_contig_segment(request_queue_t *q, struct bio *bio,
 				   struct bio *nxt)
_
-
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