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From: Miklos Szeredi <mszeredi@redhat.com>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH 10/12] vfs: don't parse forbidden flags
Date: Thu, 28 Nov 2019 16:59:38 +0100	[thread overview]
Message-ID: <20191128155940.17530-11-mszeredi@redhat.com> (raw)
In-Reply-To: <20191128155940.17530-1-mszeredi@redhat.com>

Makes little sense to keep this blacklist synced with what mount(8) parses
and what it doesn't.  E.g. it has various forms of "*atime" options, but
not "atime"...

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---
 fs/fs_context.c | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/fs/fs_context.c b/fs/fs_context.c
index 7c4216156950..394a05bc03d5 100644
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -55,29 +55,6 @@ static const struct constant_table common_clear_sb_flag[] = {
 	{ "silent",	SB_SILENT },
 };
 
-static const char *const forbidden_sb_flag[] = {
-	"bind",
-	"dev",
-	"exec",
-	"move",
-	"noatime",
-	"nodev",
-	"nodiratime",
-	"noexec",
-	"norelatime",
-	"nostrictatime",
-	"nosuid",
-	"private",
-	"rec",
-	"relatime",
-	"remount",
-	"shared",
-	"slave",
-	"strictatime",
-	"suid",
-	"unbindable",
-};
-
 /*
  * Check for a common mount option that manipulates s_flags.
  */
@@ -85,11 +62,6 @@ static int vfs_parse_sb_flag(struct fs_context *fc, struct fs_parameter *param)
 {
 	const char *key = param->key;
 	unsigned int set, clear;
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(forbidden_sb_flag); i++)
-		if (strcmp(key, forbidden_sb_flag[i]) == 0)
-			return -EINVAL;
 
 	set = lookup_constant(common_set_sb_flag, key, 0);
 	clear = lookup_constant(common_clear_sb_flag, key, 0);
-- 
2.21.0


  parent reply	other threads:[~2019-11-28 16:00 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28 15:59 [PATCH 00/12] various vfs patches Miklos Szeredi
2019-11-28 15:59 ` [PATCH 01/12] aio: fix async fsync creds Miklos Szeredi
2019-12-13  9:32   ` Miklos Szeredi
2020-05-04  8:05   ` Avi Kivity
2019-11-28 15:59 ` [PATCH 02/12] fs_parse: fix fs_param_v_optional handling Miklos Szeredi
2019-11-29 11:31   ` Andrew Price
2019-11-29 14:43     ` Miklos Szeredi
2019-11-29 15:56       ` Andrew Price
2019-12-16 23:28   ` Al Viro
2019-12-17  1:18     ` Al Viro
2019-12-17  3:27       ` Al Viro
2019-11-28 15:59 ` [PATCH 03/12] vfs: verify param type in vfs_parse_sb_flag() Miklos Szeredi
2019-11-28 15:59 ` [PATCH 04/12] uapi: deprecate STATX_ALL Miklos Szeredi
2019-11-28 15:59 ` [PATCH 05/12] statx: don't clear STATX_ATIME on SB_RDONLY Miklos Szeredi
2019-11-28 15:59 ` [PATCH 06/12] utimensat: AT_EMPTY_PATH support Miklos Szeredi
2019-11-28 15:59 ` [PATCH 07/12] f*xattr: allow O_PATH descriptors Miklos Szeredi
2019-11-28 15:59 ` [PATCH 08/12] vfs: allow unprivileged whiteout creation Miklos Szeredi
2019-12-17  3:51   ` Al Viro
2019-12-17  4:22     ` Miklos Szeredi
2019-11-28 15:59 ` [PATCH 09/12] fs_parser: "string" with missing value is a "flag" Miklos Szeredi
2019-12-17 17:32   ` Al Viro
2019-12-17 18:31     ` Al Viro
2019-11-28 15:59 ` Miklos Szeredi [this message]
2019-11-28 15:59 ` [PATCH 11/12] vfs: don't parse "posixacl" option Miklos Szeredi
2019-12-17  3:42   ` Al Viro
2019-12-17  4:18     ` Miklos Szeredi
2019-12-17  4:28       ` Al Viro
2019-11-28 15:59 ` [PATCH 12/12] vfs: don't parse "silent" option Miklos Szeredi
2019-12-17  3:37   ` Al Viro
2019-12-17  4:12     ` Miklos Szeredi
2019-12-17  4:16       ` Miklos Szeredi
2019-12-17  4:19         ` Al Viro
2019-12-17  4:23           ` Miklos Szeredi
2019-12-17  4:28             ` Miklos Szeredi
2019-12-17  4:17       ` Al Viro
2019-12-13  9:33 ` [PATCH 00/12] various vfs patches Miklos Szeredi
2019-12-16 23:13   ` Al Viro
2020-05-05  9:59 [PATCH 00/12] vfs patch queue Miklos Szeredi
2020-05-05  9:59 ` [PATCH 10/12] vfs: don't parse forbidden flags Miklos Szeredi
2020-05-13 10:06   ` Christoph Hellwig

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