From: Christoph Hellwig Date: Tue, 16 Dec 2025 17:30:09 +0000 (+0100) Subject: xfs: fix the zoned RT growfs check for zone alignment X-Git-Tag: v6.18.3~75 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92f6a7b6cfda18b3da0862e402d849efd79c80a3;p=thirdparty%2Fkernel%2Fstable.git xfs: fix the zoned RT growfs check for zone alignment commit dc68c0f601691010dd5ae53442f8523f41a53131 upstream. The grofs code for zoned RT subvolums already tries to check for zone alignment, but gets it wrong by using the old instead of the new mount structure. Fixes: 01b71e64bb87 ("xfs: support growfs on zoned file systems") Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Cc: stable@vger.kernel.org # v6.15 Signed-off-by: Carlos Maiolino Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 6907e871fa151..e063f4f2f2e61 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1255,12 +1255,10 @@ xfs_growfs_check_rtgeom( min_logfsbs = min_t(xfs_extlen_t, xfs_log_calc_minimum_size(nmp), nmp->m_rsumblocks * 2); - kfree(nmp); - trace_xfs_growfs_check_rtgeom(mp, min_logfsbs); if (min_logfsbs > mp->m_sb.sb_logblocks) - return -EINVAL; + goto out_inval; if (xfs_has_zoned(mp)) { uint32_t gblocks = mp->m_groups[XG_TYPE_RTG].blocks; @@ -1268,16 +1266,20 @@ xfs_growfs_check_rtgeom( if (rextsize != 1) return -EINVAL; - div_u64_rem(mp->m_sb.sb_rblocks, gblocks, &rem); + div_u64_rem(nmp->m_sb.sb_rblocks, gblocks, &rem); if (rem) { xfs_warn(mp, "new RT volume size (%lld) not aligned to RT group size (%d)", - mp->m_sb.sb_rblocks, gblocks); - return -EINVAL; + nmp->m_sb.sb_rblocks, gblocks); + goto out_inval; } } + kfree(nmp); return 0; +out_inval: + kfree(nmp); + return -EINVAL; } /*