diff options
| author | Chao Yu <yuchao0@huawei.com> | 2020-07-29 21:21:36 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-08-03 10:32:52 -0700 |
| commit | 1f0b067b6e4927f06f5ffaea8eccdf722e563819 (patch) | |
| tree | ec247c4eb6803ea0f0777e2fa5f89e33dfd36485 /fs/f2fs/super.c | |
| parent | a86d27dd3dbed4d870c6582b8d4bf1fd0f653914 (diff) | |
f2fs: compress: disable compression mount option if compression is off
If CONFIG_F2FS_FS_COMPRESSION is off, don't allow to configure or
show compression related mount option.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 5e0a3eeb8ca4..cdca2087dba0 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -460,9 +460,12 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) { struct f2fs_sb_info *sbi = F2FS_SB(sb); substring_t args[MAX_OPT_ARGS]; +#ifdef CONFIG_F2FS_FS_COMPRESSION unsigned char (*ext)[F2FS_EXTENSION_LEN]; + int ext_cnt; +#endif char *p, *name; - int arg = 0, ext_cnt; + int arg = 0; kuid_t uid; kgid_t gid; int ret; @@ -853,6 +856,7 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) case Opt_checkpoint_enable: clear_opt(sbi, DISABLE_CHECKPOINT); break; +#ifdef CONFIG_F2FS_FS_COMPRESSION case Opt_compress_algorithm: if (!f2fs_sb_has_compression(sbi)) { f2fs_err(sbi, "Compression feature if off"); @@ -918,6 +922,13 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) F2FS_OPTION(sbi).compress_ext_cnt++; kfree(name); break; +#else + case Opt_compress_algorithm: + case Opt_compress_log_size: + case Opt_compress_extension: + f2fs_info(sbi, "compression options not supported"); + break; +#endif default: f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value", p); @@ -1608,7 +1619,9 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER) seq_printf(seq, ",fsync_mode=%s", "nobarrier"); +#ifdef CONFIG_F2FS_FS_COMPRESSION f2fs_show_compress_options(seq, sbi->sb); +#endif return 0; } |