From patchwork Tue Mar 26 03:44:51 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: 13603502 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 43D1E21353 for ; Tue, 26 Mar 2024 03:44:52 +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=1711424692; cv=none; b=TkBfIiIJwKJDEV4cSOnmvpXRY0d5ZUq8lA93BUgsC+BB2X+JQaPlhsy+CI7N6XW0LoB+tMG6zKNSGZ0qhnXkWkLKzJRUTakqFYuDlS+BrGR8vqlXad+xh0Jg02XKiCupaQsnmFqIPET1TkTPs7hOj4Fq9ILTLgtHj8EjtijzeTA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711424692; c=relaxed/simple; bh=u+Hlv1SMq1wRJxqyDlL60GdZomr2ClWrTJk2S9VTw50=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aC7jQMH3pVEtHNRAXOEoCT1ga93SrWjpWZf0Prvf/8SJkiCYowgAcq6VwtrWz1yeFTfP4JOSW5wno854Vnu/VeWuA5zhF+fgN2tTM72WKSQR0QdeHigQdd8qd+rNBD6Ec965+L5AiiT2E7VykOcjXSe9Q/JIft7VRmP3CR07H4I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DtquyrPo; 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="DtquyrPo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1917CC43390; Tue, 26 Mar 2024 03:44:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711424692; bh=u+Hlv1SMq1wRJxqyDlL60GdZomr2ClWrTJk2S9VTw50=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=DtquyrPoaDTGXdHndQEBsXjh9Sr+Njj9Qp48hiaFGIio7Pw3Ihjl5Qatxa+Fhj2KX fwHxcDDq+KBgc5nDzMGkZ8avFsHvr2UiwNN4dg8xStOcEXjMnEUnko901xlF4Gg8R/ GkFHFNDVeKzeRgX46CUdEbEq+e5LwyTYw6Km7V/uMPP38uYzQbJ2npqjiRECtNI/18 EOub81GpSFtsAbrxMLQLxqonluOTBFhduk4p/596S/sQJfLvSyeAKVnyqbojGqJfyY DdneF2YxFQ0awqmDyWYR1h/OtPkERN/zzc7KQr/X4fe9PhCOK64BfCXHHrqEv5Rhya yiQbPEO84ts0Q== Date: Mon, 25 Mar 2024 20:44:51 -0700 Subject: [PATCH 063/110] xfs: fold xfs_bmbt_init_common into xfs_bmbt_init_cursor From: "Darrick J. Wong" To: cem@kernel.org, djwong@kernel.org Cc: Christoph Hellwig , linux-xfs@vger.kernel.org Message-ID: <171142132285.2215168.11945292114926479927.stgit@frogsfrogsfrogs> In-Reply-To: <171142131228.2215168.2795743548791967397.stgit@frogsfrogsfrogs> References: <171142131228.2215168.2795743548791967397.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Christoph Hellwig Source kernel commit: 802f91f7b1d535ac975e2d696bf5b5dea82816e7 Make the levels initialization in xfs_bmbt_init_cursor conditional and merge the two helpers. This requires the fakeroot case to now pass a -1 whichfork directly into xfs_bmbt_init_cursor, and some special casing for that, but at least this scheme to deal with the fake btree root is handled and documented in once place now. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong [djwong: tidy up a multline ternary] Signed-off-by: Darrick J. Wong --- libxfs/xfs_bmap_btree.c | 58 +++++++++++++++++++++++------------------------ 1 file changed, 28 insertions(+), 30 deletions(-) diff --git a/libxfs/xfs_bmap_btree.c b/libxfs/xfs_bmap_btree.c index 6b377d129c33..0afe541c52cd 100644 --- a/libxfs/xfs_bmap_btree.c +++ b/libxfs/xfs_bmap_btree.c @@ -543,44 +543,46 @@ const struct xfs_btree_ops xfs_bmbt_ops = { .keys_contiguous = xfs_bmbt_keys_contiguous, }; -static struct xfs_btree_cur * -xfs_bmbt_init_common( +/* + * Create a new bmap btree cursor. + * + * For staging cursors -1 in passed in whichfork. + */ +struct xfs_btree_cur * +xfs_bmbt_init_cursor( struct xfs_mount *mp, struct xfs_trans *tp, struct xfs_inode *ip, int whichfork) { struct xfs_btree_cur *cur; + unsigned int maxlevels; ASSERT(whichfork != XFS_COW_FORK); + /* + * The Data fork always has larger maxlevel, so use that for staging + * cursors. + */ + switch (whichfork) { + case XFS_STAGING_FORK: + maxlevels = mp->m_bm_maxlevels[XFS_DATA_FORK]; + break; + default: + maxlevels = mp->m_bm_maxlevels[whichfork]; + break; + } cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_BMAP, &xfs_bmbt_ops, - mp->m_bm_maxlevels[whichfork], xfs_bmbt_cur_cache); - + maxlevels, xfs_bmbt_cur_cache); cur->bc_ino.ip = ip; - cur->bc_bmap.allocated = 0; - return cur; -} - -/* - * Allocate a new bmap btree cursor. - */ -struct xfs_btree_cur * -xfs_bmbt_init_cursor( - struct xfs_mount *mp, - struct xfs_trans *tp, - struct xfs_inode *ip, - int whichfork) -{ - struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork); - struct xfs_btree_cur *cur; - - cur = xfs_bmbt_init_common(mp, tp, ip, whichfork); - - cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; - cur->bc_ino.forksize = xfs_inode_fork_size(ip, whichfork); cur->bc_ino.whichfork = whichfork; + cur->bc_bmap.allocated = 0; + if (whichfork != XFS_STAGING_FORK) { + struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork); + cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; + cur->bc_ino.forksize = xfs_inode_fork_size(ip, whichfork); + } return cur; } @@ -609,11 +611,7 @@ xfs_bmbt_stage_cursor( { struct xfs_btree_cur *cur; - /* data fork always has larger maxheight */ - cur = xfs_bmbt_init_common(mp, NULL, ip, XFS_DATA_FORK); - - /* Don't let anyone think we're attached to the real fork yet. */ - cur->bc_ino.whichfork = XFS_STAGING_FORK; + cur = xfs_bmbt_init_cursor(mp, NULL, ip, XFS_STAGING_FORK); xfs_btree_stage_ifakeroot(cur, ifake); return cur; }