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| author | Chao Yu <yuchao0@huawei.com> | 2021-01-22 12:40:13 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-01-28 02:20:02 +0300 |
| commit | 32be0e97c71366a19d11d1965e3f0957ea0be609 (patch) | |
| tree | 4ecb15d835514794c7a08ee8bd8ff58867c898f4 /fs/f2fs | |
| parent | 0b979f1bded3e6808184842133e6afeba312a4ff (diff) | |
| download | linux-32be0e97c71366a19d11d1965e3f0957ea0be609.tar.xz | |
f2fs: compress: deny setting unsupported compress algorithm
If kernel doesn't support certain kinds of compress algorithm, deny to set
them as compress algorithm of f2fs via 'compress_algorithm=%s' mount option.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b4a07fe62d1a..a275bd312ae5 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -882,17 +882,33 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) if (!name) return -ENOMEM; if (!strcmp(name, "lzo")) { +#ifdef CONFIG_F2FS_FS_LZO F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZO; +#else + f2fs_info(sbi, "kernel doesn't support lzo compression"); +#endif } else if (!strcmp(name, "lz4")) { +#ifdef CONFIG_F2FS_FS_LZ4 F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4; +#else + f2fs_info(sbi, "kernel doesn't support lz4 compression"); +#endif } else if (!strcmp(name, "zstd")) { +#ifdef CONFIG_F2FS_FS_ZSTD F2FS_OPTION(sbi).compress_algorithm = COMPRESS_ZSTD; +#else + f2fs_info(sbi, "kernel doesn't support zstd compression"); +#endif } else if (!strcmp(name, "lzo-rle")) { +#ifdef CONFIG_F2FS_FS_LZORLE F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZORLE; +#else + f2fs_info(sbi, "kernel doesn't support lzorle compression"); +#endif } else { kfree(name); return -EINVAL; |