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| author | Gao Xiang <hsiangkao@redhat.com> | 2021-04-07 07:39:22 +0300 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-04-09 22:20:17 +0300 |
| commit | 5404c33010cb8ee063c05376d4a2eba129872281 (patch) | |
| tree | a852d5fb7a705a3a0776d0a5cfe2ffbb8f959f76 /fs/erofs/internal.h | |
| parent | 81382f5f5cb0c9c5694c19d36460f757a8c96841 (diff) | |
| download | linux-5404c33010cb8ee063c05376d4a2eba129872281.tar.xz | |
erofs: add big physical cluster definition
Big pcluster indicates the size of compressed data for each physical
pcluster is no longer fixed as block size, but could be more than 1
block (more accurately, 1 logical pcluster)
When big pcluster feature is enabled for head0/1, delta0 of the 1st
non-head lcluster index will keep block count of this pcluster in
lcluster size instead of 1. Or, the compressed size of pcluster
should be 1 lcluster if pcluster has no non-head lcluster index.
Also note that BIG_PCLUSTER feature reuses COMPR_CFGS feature since
it depends on COMPR_CFGS and will be released together.
Link: https://lore.kernel.org/r/20210407043927.10623-6-xiang@kernel.org
Acked-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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 898838e1965e..c130e3848322 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -230,6 +230,7 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \ EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING) EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS) +EROFS_FEATURE_FUNCS(big_pcluster, incompat, INCOMPAT_BIG_PCLUSTER) EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM) /* atomic flag definitions */ |