On Tue, Mar 07, 2023 at 01:21:45PM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > This is a note to let you know that I've just added the patch titled > > dm flakey: fix a bug with 32-bit highmem systems > > to the 5.10-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary > > The filename of the patch is: > dm-flakey-fix-a-bug-with-32-bit-highmem-systems.patch > and it can be found in the queue-5.10 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable@xxxxxxxxxxxxxxx> know about it. > > > >From 8eb29c4fbf9661e6bd4dd86197a37ffe0ecc9d50 Mon Sep 17 00:00:00 2001 > From: Mikulas Patocka <mpatocka@xxxxxxxxxx> > Date: Sun, 22 Jan 2023 14:03:31 -0500 > Subject: dm flakey: fix a bug with 32-bit highmem systems > > From: Mikulas Patocka <mpatocka@xxxxxxxxxx> > > commit 8eb29c4fbf9661e6bd4dd86197a37ffe0ecc9d50 upstream. > > The function page_address does not work with 32-bit systems with high > memory. Use bvec_kmap_local/kunmap_local instead. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> > Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@xxxxxxxxxx> > Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx> > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > --- > drivers/md/dm-flakey.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > --- a/drivers/md/dm-flakey.c > +++ b/drivers/md/dm-flakey.c > @@ -305,8 +305,9 @@ static void corrupt_bio_data(struct bio > struct page *page = bio_iter_page(bio, iter); > if (unlikely(page == ZERO_PAGE(0))) > break; > - segment = (page_address(page) + bio_iter_offset(bio, iter)); > + segment = bvec_kmap_local(&bvec); > segment[corrupt_bio_byte] = fc->corrupt_bio_value; > + kunmap_local(segment); > DMDEBUG("Corrupting data bio=%p by writing %u to byte %u " > "(rw=%c bi_opf=%u bi_sector=%llu size=%u)\n", > bio, fc->corrupt_bio_value, fc->corrupt_bio_byte, > > > Patches currently in stable-queue which might be from mpatocka@xxxxxxxxxx are > > queue-5.10/dm-flakey-don-t-corrupt-the-zero-page.patch > queue-5.10/dm-flakey-fix-logic-when-corrupting-a-bio.patch > queue-5.10/dm-flakey-fix-a-bug-with-32-bit-highmem-systems.patch Oops, no, this one breaks the build on 5.10 and older systems, I've dropped it. thanks, greg k-h
