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| author | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 09:23:07 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 10:24:58 +0800 |
| commit | 46249cded18ac0c4ffb7b177219510a133a51c00 (patch) | |
| tree | 71682f8e22563f0c126c81d6848b276f3284f239 /fs/erofs/internal.h | |
| parent | 5d50538fc567c6f3692dec1825fb38c5a0884d93 (diff) | |
| download | linux-46249cded18ac0c4ffb7b177219510a133a51c00.tar.bz2 | |
erofs: introduce on-disk lz4 fs configurations
Introduce z_erofs_lz4_cfgs to store all lz4 configurations.
Currently it's only max_distance, but will be used for new
features later.
Link: https://lore.kernel.org/r/20210329012308.28743-4-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Diffstat (limited to 'fs/erofs/internal.h')
| -rw-r--r-- | fs/erofs/internal.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 875b2ebf2af9..b02fc64fcece 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -439,7 +439,8 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi, int erofs_try_to_free_cached_page(struct address_space *mapping, struct page *page); int z_erofs_load_lz4_config(struct super_block *sb, - struct erofs_super_block *dsb); + struct erofs_super_block *dsb, + struct z_erofs_lz4_cfgs *lz4, int len); #else static inline void erofs_shrinker_register(struct super_block *sb) {} static inline void erofs_shrinker_unregister(struct super_block *sb) {} @@ -448,9 +449,10 @@ static inline void erofs_exit_shrinker(void) {} static inline int z_erofs_init_zip_subsystem(void) { return 0; } static inline void z_erofs_exit_zip_subsystem(void) {} static inline int z_erofs_load_lz4_config(struct super_block *sb, - struct erofs_super_block *dsb) + struct erofs_super_block *dsb, + struct z_erofs_lz4_cfgs *lz4, int len) { - if (dsb->lz4_max_distance) { + if (lz4 || dsb->lz4_max_distance) { erofs_err(sb, "lz4 algorithm isn't enabled"); return -EINVAL; } |