From mboxrd@z Thu Jan 1 00:00:00 1970 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 8B4C41EB1AA for ; Tue, 19 Aug 2025 02:16:06 +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=1755569766; cv=none; b=rDoC81XgRW7LmErAef8bVE/DhrwtxtSWNw1co8p+YIN5KV+LVZO9XtK0w2SK3hYGZS4GpAY9UQ1PWd3wpsU5rpGTr31cYZP8a0ezdJbHqNPbDZcjA8/0S6j+E3j9q+7HrCHEqKwlPg5rotdPiVwoMPVB7eJJLmYB4BNbX/wJzm4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755569766; c=relaxed/simple; bh=L5ExybIRmwx0VAxiJxChUGH6Ki7Dvm2ayrt0LJ0OyyM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UZAx6oekpfFfRvcml4kjfvxMqqYdtDgFWTLkbN1gw7SyTXHSBGxQl1fVRez+UlW58J/QI4/MjZhCF9j+vXvBTg0/J08I4kX0KvVf0pKOPd15gBeo5+OOp99OCUnqMGfK46KUNyhPNzDjkJaa2hveCcgMXrmUEx2RjkeJKliAKRE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=spfiq03Z; 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="spfiq03Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AD961C116B1; Tue, 19 Aug 2025 02:16:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755569766; bh=L5ExybIRmwx0VAxiJxChUGH6Ki7Dvm2ayrt0LJ0OyyM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=spfiq03ZhQrgcXu2B+sIcnoozBz2UcUuWDXdC8PDXe7N0AbKsljUIZEORvpsylUSp 7LTF/dfVH1TNOR9V5QqXHcd5CZTsbL1U3mxfFg9hRchWokLvDAfFe0YCgJX31sAK+8 pqnVqfA+majFsnlIy+vCrC3xfph1L5zaq4oXDqPz+Cc4tgME4HF8YaEs9A2qHPEoDP KF6r2nPVVelWqlIOhoMOF2l71rxolub/TvPdT2ohKVcYN/Y5EnXUaibauUttYVango OjV/dpEiDglDL2eqXKy+583ieiBAyW9yHwWDRQA5rwQgqdmCLulvtNNGq0wbW0qWit 25io88aAMaKpQ== From: Sasha Levin To: stable@vger.kernel.org Cc: Filipe Manana , David Sterba , Sasha Levin Subject: [PATCH 6.12.y 1/7] btrfs: send: factor out common logic when sending xattrs Date: Mon, 18 Aug 2025 22:15:55 -0400 Message-ID: <20250819021601.274993-1-sashal@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <2025081827-washed-yelp-3c3e@gregkh> References: <2025081827-washed-yelp-3c3e@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Filipe Manana [ Upstream commit 17f6a74d0b89092e38e3328b66eda1ab29a195d4 ] We always send xattrs for the current inode only and both callers of send_set_xattr() pass a path for the current inode. So move the path allocation and computation to send_set_xattr(), reducing duplicated code. This also facilitates an upcoming patch. Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba Stable-dep-of: 005b0a0c24e1 ("btrfs: send: use fallocate for hole punching with send stream v2") Signed-off-by: Sasha Levin --- fs/btrfs/send.c | 41 +++++++++++++++-------------------------- 1 file changed, 15 insertions(+), 26 deletions(-) diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index c843b4aefb8a..464c37c2b33d 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -4878,11 +4878,19 @@ static int process_all_refs(struct send_ctx *sctx, } static int send_set_xattr(struct send_ctx *sctx, - struct fs_path *path, const char *name, int name_len, const char *data, int data_len) { - int ret = 0; + struct fs_path *path; + int ret; + + path = fs_path_alloc(); + if (!path) + return -ENOMEM; + + ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, path); + if (ret < 0) + goto out; ret = begin_cmd(sctx, BTRFS_SEND_C_SET_XATTR); if (ret < 0) @@ -4896,6 +4904,8 @@ static int send_set_xattr(struct send_ctx *sctx, tlv_put_failure: out: + fs_path_free(path); + return ret; } @@ -4923,19 +4933,13 @@ static int __process_new_xattr(int num, struct btrfs_key *di_key, const char *name, int name_len, const char *data, int data_len, void *ctx) { - int ret; struct send_ctx *sctx = ctx; - struct fs_path *p; struct posix_acl_xattr_header dummy_acl; /* Capabilities are emitted by finish_inode_if_needed */ if (!strncmp(name, XATTR_NAME_CAPS, name_len)) return 0; - p = fs_path_alloc(); - if (!p) - return -ENOMEM; - /* * This hack is needed because empty acls are stored as zero byte * data in xattrs. Problem with that is, that receiving these zero byte @@ -4952,15 +4956,7 @@ static int __process_new_xattr(int num, struct btrfs_key *di_key, } } - ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, p); - if (ret < 0) - goto out; - - ret = send_set_xattr(sctx, p, name, name_len, data, data_len); - -out: - fs_path_free(p); - return ret; + return send_set_xattr(sctx, name, name_len, data, data_len); } static int __process_deleted_xattr(int num, struct btrfs_key *di_key, @@ -5836,7 +5832,6 @@ static int send_extent_data(struct send_ctx *sctx, struct btrfs_path *path, */ static int send_capabilities(struct send_ctx *sctx) { - struct fs_path *fspath = NULL; struct btrfs_path *path; struct btrfs_dir_item *di; struct extent_buffer *leaf; @@ -5862,25 +5857,19 @@ static int send_capabilities(struct send_ctx *sctx) leaf = path->nodes[0]; buf_len = btrfs_dir_data_len(leaf, di); - fspath = fs_path_alloc(); buf = kmalloc(buf_len, GFP_KERNEL); - if (!fspath || !buf) { + if (!buf) { ret = -ENOMEM; goto out; } - ret = get_cur_path(sctx, sctx->cur_ino, sctx->cur_inode_gen, fspath); - if (ret < 0) - goto out; - data_ptr = (unsigned long)(di + 1) + btrfs_dir_name_len(leaf, di); read_extent_buffer(leaf, buf, data_ptr, buf_len); - ret = send_set_xattr(sctx, fspath, XATTR_NAME_CAPS, + ret = send_set_xattr(sctx, XATTR_NAME_CAPS, strlen(XATTR_NAME_CAPS), buf, buf_len); out: kfree(buf); - fs_path_free(fspath); btrfs_free_path(path); return ret; } -- 2.50.1