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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>
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0b979f1bde
commit
32be0e97c7
@ -882,17 +882,33 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
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if (!name)
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return -ENOMEM;
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if (!strcmp(name, "lzo")) {
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#ifdef CONFIG_F2FS_FS_LZO
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F2FS_OPTION(sbi).compress_algorithm =
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COMPRESS_LZO;
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#else
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f2fs_info(sbi, "kernel doesn't support lzo compression");
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#endif
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} else if (!strcmp(name, "lz4")) {
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#ifdef CONFIG_F2FS_FS_LZ4
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F2FS_OPTION(sbi).compress_algorithm =
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COMPRESS_LZ4;
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#else
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f2fs_info(sbi, "kernel doesn't support lz4 compression");
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#endif
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} else if (!strcmp(name, "zstd")) {
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#ifdef CONFIG_F2FS_FS_ZSTD
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F2FS_OPTION(sbi).compress_algorithm =
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COMPRESS_ZSTD;
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#else
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f2fs_info(sbi, "kernel doesn't support zstd compression");
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#endif
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} else if (!strcmp(name, "lzo-rle")) {
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#ifdef CONFIG_F2FS_FS_LZORLE
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F2FS_OPTION(sbi).compress_algorithm =
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COMPRESS_LZORLE;
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#else
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f2fs_info(sbi, "kernel doesn't support lzorle compression");
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#endif
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} else {
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kfree(name);
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return -EINVAL;
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