From: Brian Foster <bfoster@redhat.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org, sandeen@sandeen.net
Subject: Re: [PATCH 3/5] xfs: fix off-by-one error in rtbitmap cross-reference
Date: Fri, 11 Jan 2019 10:10:54 -0500 [thread overview]
Message-ID: <20190111151053.GB30640@bfoster> (raw)
In-Reply-To: <154697978351.2839.11888108672644284957.stgit@magnolia>
On Tue, Jan 08, 2019 at 12:36:23PM -0800, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Fix an off-by-one error in the realtime bitmap "is used" cross-reference
> helper function.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
> fs/xfs/scrub/rtbitmap.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>
> diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
> index 665d4bbb17cc..5402211f980b 100644
> --- a/fs/xfs/scrub/rtbitmap.c
> +++ b/fs/xfs/scrub/rtbitmap.c
> @@ -143,7 +143,7 @@ xchk_xref_is_used_rt_space(
> do_div(startext, sc->mp->m_sb.sb_rextsize);
> if (do_div(endext, sc->mp->m_sb.sb_rextsize))
> endext++;
> - extcount = endext - startext;
> + extcount = endext - startext + 1;
I'm not terribly familiar with rt code, but isn't the above endext++
also rounding this up in some cases?
Brian
> xfs_ilock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
> error = xfs_rtalloc_extent_is_free(sc->mp, sc->tp, startext, extcount,
> &is_free);
>
next prev parent reply other threads:[~2019-01-11 15:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-08 20:36 [PATCH 0/5] xfs: general scrubber fixes Darrick J. Wong
2019-01-08 20:36 ` [PATCH 1/5] xfs: abort xattr scrub if fatal signals are pending Darrick J. Wong
2019-01-08 20:36 ` [PATCH 2/5] xfs: scrub should flag dir/attr offsets that aren't mappable with xfs_dablk_t Darrick J. Wong
2019-01-11 15:10 ` Brian Foster
2019-01-08 20:36 ` [PATCH 3/5] xfs: fix off-by-one error in rtbitmap cross-reference Darrick J. Wong
2019-01-11 15:10 ` Brian Foster [this message]
2019-01-14 20:31 ` Darrick J. Wong
2019-01-14 20:32 ` [PATCH v2 " Darrick J. Wong
2019-01-15 10:49 ` Brian Foster
2019-01-15 19:32 ` Darrick J. Wong
2019-01-08 20:36 ` [PATCH 4/5] xfs: check directory name validity Darrick J. Wong
2019-01-11 15:11 ` Brian Foster
2019-01-08 20:36 ` [PATCH 5/5] xfs: check attribute " Darrick J. Wong
2019-01-11 15:11 ` Brian Foster
2019-01-08 20:42 ` [PATCH 6/5] libxfs(progs): fix attr include mess Darrick J. Wong
2019-01-08 20:42 ` [PATCH 7/5] xfs_repair: refactor namecheck functions Darrick J. Wong
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