From patchwork Wed Jan 29 23:19:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Brauner X-Patchwork-Id: 13954230 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 B74381B4F02 for ; Wed, 29 Jan 2025 23:20:44 +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=1738192844; cv=none; b=J6qiNmHVyGAGwOszet6ZEv9Fjt+sXSLkiN5P8REETvPnVNZmqOD5aAb93FWnSo+82Ovb013H7rqJ3Wd5odE6YM+U8uCmZM669CCHWSn4zcKyBLORv5NfwQin6KOyBAxT58bHdMVs0vh/46i5qy8BPDDwl0F1CxBwhF3Y/l6gaDg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738192844; c=relaxed/simple; bh=vDzcH+jxvipj5mOU7vGgaaam7ebEwSwPJMT1JIlWZV4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rc/3ogtcFWEAZsNFZ06pAPIB16TiLG4I+IkiR2gGvcAzErbV2ovbaI2SVBqjWDTu1e3B5KoOeWD9DldDYri8lZEgXKpwfzOQ62y6eVET78gD8mt8lhsnmHlcc+bU1DwCPBgCTGV+zLVLYZQic7e7z/UTAbTCI+U/hZ2OkwgAUCY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FV7Y9Bmm; 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="FV7Y9Bmm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95D46C4CEE4; Wed, 29 Jan 2025 23:20:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738192844; bh=vDzcH+jxvipj5mOU7vGgaaam7ebEwSwPJMT1JIlWZV4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=FV7Y9Bmm2FT3ezSWq2BJVa0UJwpYQu5a53wa1xgE8Doipg/yn7JeLGRQXuz9uEpoz F7SMZWD3A2ZbBQefKjNwb4nVnIoF5RKmSPpLLbOHo6mXYeKzpXzfk48FsEkhi5/ui6 QyOU1Lmv8viV2TvOXxt97OtHpC4t3zbO3hIPVQIseWVHmf8h+XK5B1p0SF/5D0koHl tkyXDhByDuWWrQt4jAJGaBfytehu8fHzqEM8kKBEOPyxfI84rjdf1p2cZYA6aT7YA1 gNSqDrhL9sf0xKGarUvYzZP8Jx9ByKyXRmkdPJ8N0Hs7oObOHdLh861YDHJYuHlvQ+ BdyaLBoRvQr2w== From: Christian Brauner Date: Thu, 30 Jan 2025 00:19:53 +0100 Subject: [PATCH 3/4] samples/vfs: check whether flag was raised Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250130-work-mnt_idmap-statmount-v1-3-d4ced5874e14@kernel.org> References: <20250130-work-mnt_idmap-statmount-v1-0-d4ced5874e14@kernel.org> In-Reply-To: <20250130-work-mnt_idmap-statmount-v1-0-d4ced5874e14@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Josef Bacik , Jeff Layton , Lennart Poettering , Daan De Meyer , Seth Forshee , Miklos Szeredi , Christian Brauner X-Mailer: b4 0.15-dev-d23a9 X-Developer-Signature: v=1; a=openpgp-sha256; l=1326; i=brauner@kernel.org; h=from:subject:message-id; bh=vDzcH+jxvipj5mOU7vGgaaam7ebEwSwPJMT1JIlWZV4=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMaTP2n64+be6XdqOX9Mv8lQ+4nVLOfAyKjZveaXv2Tefq 172FfrodJSyMIhxMciKKbI4tJuEyy3nqdhslKkBM4eVCWQIAxenAEzEeDUjw5GsriXfmtrmfv5z fXNIfX3vpx15l9pzj+2Z2e7ab6gwJZThn/1VkfTf+owP1EStNisrzX1449TlA64VSS80Wv6EXX3 FzwYA X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 For string options the kernel will raise the corresponding flag only if the string isn't empty. So check for the flag. Signed-off-by: Christian Brauner --- samples/vfs/test-list-all-mounts.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/samples/vfs/test-list-all-mounts.c b/samples/vfs/test-list-all-mounts.c index 1a02ea4593e3..ce272ded8a79 100644 --- a/samples/vfs/test-list-all-mounts.c +++ b/samples/vfs/test-list-all-mounts.c @@ -138,10 +138,11 @@ int main(int argc, char *argv[]) printf("mnt_id:\t\t%" PRIu64 "\nmnt_parent_id:\t%" PRIu64 "\nfs_type:\t%s\nmnt_root:\t%s\nmnt_point:\t%s\nmnt_opts:\t%s\n\n", (uint64_t)stmnt->mnt_id, (uint64_t)stmnt->mnt_parent_id, - stmnt->str + stmnt->fs_type, - stmnt->str + stmnt->mnt_root, - stmnt->str + stmnt->mnt_point, - stmnt->str + stmnt->mnt_opts); + (stmnt->mask & STATMOUNT_FS_TYPE) ? stmnt->str + stmnt->fs_type : "", + (stmnt->mask & STATMOUNT_MNT_ROOT) ? stmnt->str + stmnt->mnt_root : "", + (stmnt->mask & STATMOUNT_MNT_POINT) ? stmnt->str + stmnt->mnt_point : "", + (stmnt->mask & STATMOUNT_MNT_OPTS) ? stmnt->str + stmnt->mnt_opts : ""); + free(stmnt); } }