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-rw-r--r--fs/ext4/super.c41
1 files changed, 25 insertions, 16 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c082aead0e33..68395631d222 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -89,8 +89,8 @@ static void ext4_clear_request_list(void);
static struct inode *ext4_get_journal_inode(struct super_block *sb,
unsigned int journal_inum);
static int ext4_validate_options(struct fs_context *fc);
-static int ext4_check_quota_consistency(struct fs_context *fc,
- struct super_block *sb);
+static int ext4_check_opt_consistency(struct fs_context *fc,
+ struct super_block *sb);
static void ext4_apply_quota_options(struct fs_context *fc,
struct super_block *sb);
@@ -2199,6 +2199,7 @@ struct ext4_fs_context {
unsigned long journal_devnum;
unsigned int journal_ioprio;
int mb_optimize_scan;
+ unsigned int opt_flags; /* MOPT flags */
};
#ifdef CONFIG_QUOTA
@@ -2329,25 +2330,14 @@ static int handle_mount_opt(struct fs_context *fc, struct fs_parameter *param)
if (token == m->token)
break;
+ ctx->opt_flags |= m->flags;
+
if (m->token == Opt_err) {
ext4_msg(NULL, KERN_ERR, "Unrecognized mount option \"%s\" "
"or missing value", param->key);
return -EINVAL;
}
- if ((m->flags & MOPT_NO_EXT2) && IS_EXT2_SB(sb)) {
- ext4_msg(NULL, KERN_ERR,
- "Mount option \"%s\" incompatible with ext2",
- param->key);
- return -EINVAL;
- }
- if ((m->flags & MOPT_NO_EXT3) && IS_EXT3_SB(sb)) {
- ext4_msg(NULL, KERN_ERR,
- "Mount option \"%s\" incompatible with ext3",
- param->key);
- return -EINVAL;
- }
-
if (m->flags & MOPT_EXPLICIT) {
if (m->mount_opt & EXT4_MOUNT_DELALLOC) {
set_opt2(sb, EXPLICIT_DELALLOC);
@@ -2630,7 +2620,7 @@ static int parse_options(char *options, struct super_block *sb,
if (ret < 0)
return 0;
- ret = ext4_check_quota_consistency(&fc, sb);
+ ret = ext4_check_opt_consistency(&fc, sb);
if (ret < 0)
return 0;
@@ -2724,6 +2714,25 @@ err_feature:
#endif
}
+static int ext4_check_opt_consistency(struct fs_context *fc,
+ struct super_block *sb)
+{
+ struct ext4_fs_context *ctx = fc->fs_private;
+
+ if ((ctx->opt_flags & MOPT_NO_EXT2) && IS_EXT2_SB(sb)) {
+ ext4_msg(NULL, KERN_ERR,
+ "Mount option(s) incompatible with ext2");
+ return -EINVAL;
+ }
+ if ((ctx->opt_flags & MOPT_NO_EXT3) && IS_EXT3_SB(sb)) {
+ ext4_msg(NULL, KERN_ERR,
+ "Mount option(s) incompatible with ext3");
+ return -EINVAL;
+ }
+
+ return ext4_check_quota_consistency(fc, sb);
+}
+
static int ext4_validate_options(struct fs_context *fc)
{
struct ext4_sb_info *sbi = fc->s_fs_info;