Messages in this thread Patch in this message | | | Date | Mon, 12 Feb 2007 09:51:27 +0100 | From | "J.A. Magallón" <> | Subject | Re: [PATCH] Re: Bio device too big | kernel BUG at mm/filemap.c:537! |
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On Wed, 7 Feb 2007 10:26:56 +1100, Neil Brown <neilb@suse.de> wrote:
> On Tuesday February 6, neilb@suse.de wrote: > > > > This patch should fix the worst of the offences, but I'd like to > > experiment and think a bit more before I submit it to stable. > > And probably test it too - as yet I have only compile and brain > > tested. > > Ok, I've experimented and tested and now I know what was causing the > double-unlock. > > The following patch is suitable for 2.6.20.1 and mainline. There is > room for a bit more improvement, but only for performance, not > correctness. I'll look into that later. >
> + blk_recount_segments(q, bi);
I needed to export blk_recount_segments() to build raid as a module:
--- linux/block/ll_rw_blk.c.orig 2007-02-12 09:46:55.000000000 +0100 +++ linux/block/ll_rw_blk.c 2007-02-12 09:45:57.000000000 +0100 @@ -1258,6 +1258,8 @@ 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) { -- J.A. Magallon <jamagallon()ono!com> \ Software is like sex: \ It's better when it's free Mandriva Linux release 2007.1 (Cooker) for i586 Linux 2.6.19-jam06 (gcc 4.1.2 20070115 (prerelease) (4.1.2-0.20070115.1mdv2007.1)) #1 SMP PREEMPT - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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