Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [PATCH v3] f2fs: compress: deny setting unsupported compress algorithm | Date | Fri, 22 Jan 2021 17:40:13 +0800 |
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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> --- v3: - rebase to commit 03a9a1a64a11 ("f2fs: relocate f2fs_precache_extents()") in dev branch fs/f2fs/super.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
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; -- 2.29.2
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