From patchwork Mon Dec 23 23:16:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13919540 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A6637462 for ; Mon, 23 Dec 2024 23:16:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734995803; cv=none; b=VSpgV42yFdZnarMMkiH0Vf3GKYpbSyRQGOzi9jbtrxaU01Ts4AugjRZFiXb7AQf5sGLx3kNZ8uafcB1lJft6wQVwS30SIuv31sdW2IoID69KjFYdip+r7inRxPXYgvzl5XeUOhlmltGb3ngYZJxr6iia+EqPDT3h2HM8HztfeN0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734995803; c=relaxed/simple; bh=N6jhuOH6nAirVOJnHVL7sFwfhfG1pR5ZFrgNuoV274I=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lSD4pXxohvqYM7Ooqtb1xJQtnn/eMh/KqxmduTHlQ1c8wbl+4W/DmJiyqJ5qkEwsug9xNYyhfjuseIZ6Vqj7vz/VAFnRDTOPLc8GhwCg3OUHnFmGu2iLvdWyCUVRM1jpuP2dDBKhaIZRLezfkQmFheyDckku3uvT3RIa2RMAoJw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hB62Ul3z; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hB62Ul3z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5954C4CED3; Mon, 23 Dec 2024 23:16:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734995802; bh=N6jhuOH6nAirVOJnHVL7sFwfhfG1pR5ZFrgNuoV274I=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=hB62Ul3z86d3rB3/ynW/K3xFVSPnv5bmNe/4lY3opkL/v3LmDxajefYpl3FnpE64A HHOtsDlxkrii41SKlf1CQ6sD+VREG0o3FrVVyRWIWLWcyPGPOBWhPnUVzEdsuXuzMs IXPuCs9dIg1ycbA4K3ZECGYbIwJbJSn+rFx4UviNqtKFfGBxsfH0C4Qwj1dWQY4MMA DmV5S0ZD/jbQUw8m5LCTW2qX4jzsN0+9seSqkFP3cWdtsxF+f9xObLpHLs6peEe3h6 ZrvmVrnzN1tJ+n57kG7i/EmKH1gEXy/b89/8EsK4A6S0VLwXYfhQNTT16TVsfFccoK zL/7goWlpxw0w== Date: Mon, 23 Dec 2024 15:16:42 -0800 Subject: [PATCH 40/43] xfs: repair inodes that have a refcount btree in the data fork From: "Darrick J. Wong" To: djwong@kernel.org, cem@kernel.org Cc: hch@lst.de, linux-xfs@vger.kernel.org Message-ID: <173499420623.2381378.2678036565876501364.stgit@frogsfrogsfrogs> In-Reply-To: <173499419823.2381378.11636144864040727907.stgit@frogsfrogsfrogs> References: <173499419823.2381378.11636144864040727907.stgit@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Darrick J. Wong Plumb knowledge of refcount btrees into the inode core repair code. Signed-off-by: "Darrick J. Wong" Reviewed-by: Christoph Hellwig --- fs/xfs/scrub/inode_repair.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/fs/xfs/scrub/inode_repair.c b/fs/xfs/scrub/inode_repair.c index 701baee144a66e..2f641b6d663eb2 100644 --- a/fs/xfs/scrub/inode_repair.c +++ b/fs/xfs/scrub/inode_repair.c @@ -40,6 +40,7 @@ #include "xfs_symlink_remote.h" #include "xfs_rtgroup.h" #include "xfs_rtrmap_btree.h" +#include "xfs_rtrefcount_btree.h" #include "scrub/xfs_scrub.h" #include "scrub/scrub.h" #include "scrub/common.h" @@ -970,6 +971,34 @@ xrep_dinode_bad_rtrmapbt_fork( return false; } +/* Return true if this refcount-format ifork looks like garbage. */ +STATIC bool +xrep_dinode_bad_rtrefcountbt_fork( + struct xfs_scrub *sc, + struct xfs_dinode *dip, + unsigned int dfork_size) +{ + struct xfs_rtrefcount_root *dfp; + unsigned int nrecs; + unsigned int level; + + if (dfork_size < sizeof(struct xfs_rtrefcount_root)) + return true; + + dfp = XFS_DFORK_PTR(dip, XFS_DATA_FORK); + nrecs = be16_to_cpu(dfp->bb_numrecs); + level = be16_to_cpu(dfp->bb_level); + + if (level > sc->mp->m_rtrefc_maxlevels) + return true; + if (xfs_rtrefcount_droot_space_calc(level, nrecs) > dfork_size) + return true; + if (level > 0 && nrecs == 0) + return true; + + return false; +} + /* Check a metadata-btree fork. */ STATIC bool xrep_dinode_bad_metabt_fork( @@ -984,6 +1013,8 @@ xrep_dinode_bad_metabt_fork( switch (be16_to_cpu(dip->di_metatype)) { case XFS_METAFILE_RTRMAP: return xrep_dinode_bad_rtrmapbt_fork(sc, dip, dfork_size); + case XFS_METAFILE_RTREFCOUNT: + return xrep_dinode_bad_rtrefcountbt_fork(sc, dip, dfork_size); default: return true; } @@ -1249,6 +1280,7 @@ xrep_dinode_ensure_forkoff( { struct xfs_bmdr_block *bmdr; struct xfs_rtrmap_root *rmdr; + struct xfs_rtrefcount_root *rcdr; struct xfs_scrub *sc = ri->sc; xfs_extnum_t attr_extents, data_extents; size_t bmdr_minsz = xfs_bmdr_space_calc(1); @@ -1361,6 +1393,10 @@ xrep_dinode_ensure_forkoff( rmdr = XFS_DFORK_PTR(dip, XFS_DATA_FORK); dfork_min = xfs_rtrmap_broot_space(sc->mp, rmdr); break; + case XFS_METAFILE_RTREFCOUNT: + rcdr = XFS_DFORK_PTR(dip, XFS_DATA_FORK); + dfork_min = xfs_rtrefcount_broot_space(sc->mp, rcdr); + break; default: dfork_min = 0; break;