From: Miklos Szeredi <mszeredi@redhat.com>
To: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>, Ian Kent <raven@themaw.net>,
linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 03/13] vfs: don't parse forbidden flags
Date: Wed, 19 Jun 2019 14:30:09 +0200 [thread overview]
Message-ID: <20190619123019.30032-3-mszeredi@redhat.com> (raw)
In-Reply-To: <20190619123019.30032-1-mszeredi@redhat.com>
Impossible to keep this blacklist properly synced with what mount(8) parses
and what it doesn't. E.g. it has various forms of "*atime" options, but
not "atime"...
Other than being impossible to maintain, it also makes little sense. So
just get rid of it.
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 a9f314390b99..cbf89117a507 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 @@ 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
next prev parent reply other threads:[~2019-06-19 12:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-19 12:30 [PATCH 01/13] vfs: verify param type in vfs_parse_sb_flag() Miklos Szeredi
2019-06-19 12:30 ` [PATCH 02/13] vfs: move vfs_parse_sb_flag() calls into filesystems Miklos Szeredi
2019-06-19 12:30 ` Miklos Szeredi [this message]
2019-06-19 12:30 ` [PATCH 04/13] vfs: don't parse "posixacl" option Miklos Szeredi
2019-06-19 12:30 ` [PATCH 05/13] vfs: don't parse "silent" option Miklos Szeredi
2019-06-20 4:40 ` Ian Kent
2019-06-24 8:25 ` Miklos Szeredi
2019-06-24 10:36 ` David Howells
2019-06-24 10:44 ` Miklos Szeredi
2019-06-24 10:53 ` Miklos Szeredi
2019-06-19 12:30 ` [PATCH 06/13] vfs: new helper: vfs_parse_ro_rw() Miklos Szeredi
2019-06-19 12:30 ` [PATCH 07/13] proc: don't ignore options Miklos Szeredi
2019-06-19 12:30 ` [PATCH 08/13] sysfs: " Miklos Szeredi
2019-06-19 12:30 ` [PATCH 09/13] mqueue: " Miklos Szeredi
2019-06-19 12:30 ` [PATCH 10/13] cpuset: " Miklos Szeredi
2019-06-19 12:30 ` [PATCH 11/13] cgroup: " Miklos Szeredi
2019-06-19 12:30 ` [PATCH 12/13] fusectl: " Miklos Szeredi
2019-06-19 12:30 ` [PATCH 13/13] resctrl: " Miklos Szeredi
2019-07-01 8:45 ` [PATCH 01/13] vfs: verify param type in vfs_parse_sb_flag() Miklos Szeredi
2019-07-04 16:19 ` David Howells
2019-09-06 7:28 ` Miklos Szeredi
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