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f2fs: compress: support zstd compress algorithm

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Add zstd compress algorithm support, use "compress_algorithm=zstd"
mountoption to enable it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2020-03-03 17:46:02 +08:00
committed by Jaegeuk Kim
parent 23b1faaade
commit 50cfa66f0d
6 changed files with 190 additions and 3 deletions
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7
fs/f2fs/super.c
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@@ -829,6 +829,10 @@ static int parse_options(struct super_block *sb, char *options)
!strcmp(name, "lz4")) {
F2FS_OPTION(sbi).compress_algorithm =
COMPRESS_LZ4;
} else if (strlen(name) == 4 &&
!strcmp(name, "zstd")) {
F2FS_OPTION(sbi).compress_algorithm =
COMPRESS_ZSTD;
} else {
kfree(name);
return -EINVAL;
@@ -1419,6 +1423,9 @@ static inline void f2fs_show_compress_options(struct seq_file *seq,
case COMPRESS_LZ4:
algtype = "lz4";
break;
case COMPRESS_ZSTD:
algtype = "zstd";
break;
}
seq_printf(seq, ",compress_algorithm=%s", algtype);