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authorMiklos Szeredi <mszeredi@redhat.com>2020-05-14 16:44:25 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2020-05-14 16:44:25 +0200
commit9193ae87a8af031ce2fb4116d417fff55c8a0bcc (patch)
tree3a083399f4a3fd4fb3d582feae33e7d30b2d2806
parent80340fe3605c0e78cfe496c3b3878be828cfdbfe (diff)
downloadlinux-9193ae87a8af031ce2fb4116d417fff55c8a0bcc.tar.gz
vfs: don't parse forbidden flags
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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
-rw-r--r--fs/fs_context.c28
1 files changed, 0 insertions, 28 deletions
diff --git a/fs/fs_context.c b/fs/fs_context.c
index fc9f6ef93b55..07e09bcf256c 100644
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -57,40 +57,12 @@ static const struct constant_table common_clear_sb_flag[] = {
 	{ },
 };
 
-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.
  */
 static int vfs_parse_sb_flag(struct fs_context *fc, const char *key)
 {
 	unsigned int token;
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(forbidden_sb_flag); i++)
-		if (strcmp(key, forbidden_sb_flag[i]) == 0)
-			return -EINVAL;
 
 	token = lookup_constant(common_set_sb_flag, key, 0);
 	if (token) {