From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: [PATCH 2/2] md: Reassigned the parameters if read_seqretry returned true in func md_is_badblock. Date: Tue, 6 Nov 2012 21:19:07 +1100 Message-ID: <20121106211907.7df50c4a@notabene.brown> References: <201211061713404301164@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/8YKc+wvwJmAcwV/K7cy4+h1"; protocol="application/pgp-signature" Return-path: In-Reply-To: <201211061713404301164@gmail.com> Sender: linux-raid-owner@vger.kernel.org To: majianpeng Cc: linux-raid , zhuwenfeng List-Id: linux-raid.ids --Sig_/8YKc+wvwJmAcwV/K7cy4+h1 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Tue, 6 Nov 2012 17:13:44 +0800 majianpeng wrote: > This bug was introduced by commit(v3.0-rc7-126-g2230dfe). > So fix is suitable for 3.0.y thru 3.6.y. >=20 > Cc: stable@vger.kernel.org > Signed-off-by: Jianpeng Ma > --- > drivers/md/md.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) >=20 > diff --git a/drivers/md/md.c b/drivers/md/md.c > index d63aa78..541c74c 100644 > --- a/drivers/md/md.c > +++ b/drivers/md/md.c > @@ -7936,9 +7936,9 @@ int md_is_badblock(struct badblocks *bb, sector_t s= , int sectors, > sector_t *first_bad, int *bad_sectors) > { > int hi; > - int lo =3D 0; > + int lo; > u64 *p =3D bb->page; > - int rv =3D 0; > + int rv; > sector_t target =3D s + sectors; > unsigned seq; > =20 > @@ -7953,7 +7953,8 @@ int md_is_badblock(struct badblocks *bb, sector_t s= , int sectors, > =20 > retry: > seq =3D read_seqbegin(&bb->lock); > - > + lo =3D 0; > + rv =3D 0; > hi =3D bb->count; > =20 > /* Binary search between lo and hi for 'target' Applied, thanks. NeilBrown --Sig_/8YKc+wvwJmAcwV/K7cy4+h1 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIVAwUBUJjkGznsnt1WYoG5AQKRRRAAvKLNCGmM86yqg6FaLnYUzf2MNYtQt3HB VmLx8z/7iwtyiF6qWq2+hI1FpVLkpN769N+2nxQvxqfmXVyusU6MaM1VuhDZwFca 0pLgW/eid7WQS8oHu6uaS/yeir+p4AE3JHm/uOpTdbZrrpUo6/dXcR8Nc8DzFGpa nXGkguQ2YSBdM1XnSYOzAUJKXFvIFtIFeUa6szmYIxFoSZ4LTEwY95XLuQvHfVd7 THqpkHBMkz0Jt4Oa1kUgUODYchsdwfLIzc83xXgku4nymXSsGd0/db1Jq8Jlp95B Eg1gzOmHTHMaQXvuzS4i38ruwAFgbeLHticj95BfCLov1k43JKjXdy3jlwGgl6bO liGqTX7HW6FN3sGvq8SN5bDvgIRnL7IeFoOMXchvGi13PI8z7fTZUDkHrKf8WN5w QrV6U8loX5RLo3Lgk3eIu3l+4GRC+GwDLfmBt/alxzV9MgmrlTQpIQ9D3VtDI1xR X2cldvtyduGp2ha0oodSLRSqQs0AoZIZNUfbyJNaKn60Ki6ZhL2m1KE8gRnAF+QA O4mJAJxFZaeAVNe0ew7rATQK5PqoDPK1uI7Bh+GdUfUVNSH44YFaF/wxX3T8C8iR HzmVRyUizHl2xZNxTB24EcgxUCfP3hjGdP6eU3ZGqJQT03oup8hILKKa/MtObf5u ctsW/agQpDA= =CzAW -----END PGP SIGNATURE----- --Sig_/8YKc+wvwJmAcwV/K7cy4+h1--