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| author | Gao Xiang <gaoxiang25@huawei.com> | 2019-11-08 11:37:33 +0800 |
|---|---|---|
| committer | Gao Xiang <gaoxiang25@huawei.com> | 2019-11-24 11:02:41 +0800 |
| commit | 0c638f70d7310f961a3482108c9d7ce15fcba8b3 (patch) | |
| tree | 8abff61c6943f97be75ba8af773b8fc7798e09cb /fs/erofs/internal.h | |
| parent | b858a4844cfba3d90a8d8ffd3a04d9557f76b60f (diff) | |
| download | linux-stable-0c638f70d7310f961a3482108c9d7ce15fcba8b3.tar.gz linux-stable-0c638f70d7310f961a3482108c9d7ce15fcba8b3.tar.bz2 linux-stable-0c638f70d7310f961a3482108c9d7ce15fcba8b3.zip | |
erofs: drop all vle annotations for runtime names
VLE was an old informal name of fixed-sized output
compression which came from published ATC'19 paper [1].
Drop those old annotations since erofs can handle
all encoded clusters in block-aligned basis, which
is wider than fixed-sized output compression after
larger clustersize feature is fully implemented.
Unaligned encoding won't be considered in EROFS
since it's not friendly to inplace I/O and perhaps
decompression inplace.
a) Fixed-sized output compression with 16KB pcluster:
___________________________________
|xxxxxxxx|xxxxxxxx|xxxxxxxx|xxxxxxxx|
|___ 0___|___ 1___|___ 2___|___ 3___| physical blocks
b) Block-aligned fixed-sized input compression with
16KB pcluster:
___________________________________
|xxxxxxxx|xxxxxxxx|xxxxxxxx|xxx00000|
|___ 0___|___ 1___|___ 2___|___ 3___| physical blocks
c) Block-unaligned fixed-sized input compression with
16KB compression unit:
____________________________________________
|..xxxxxx|xxxxxxxx|xxxxxxxx|xxxxxxxx|x.......|
|___ 0___|___ 1___|___ 2___|___ 3___|___ 4___| physical blocks
Refine better names for those as well.
[1] https://www.usenix.org/conference/atc19/presentation/gao
Link: https://lore.kernel.org/r/20191108033733.63919-1-gaoxiang25@huawei.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Diffstat (limited to 'fs/erofs/internal.h')
| -rw-r--r-- | fs/erofs/internal.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 6864fa4893e9..1ed5beff7d11 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -279,9 +279,7 @@ static inline unsigned int erofs_inode_datalayout(unsigned int value) extern const struct super_operations erofs_sops; extern const struct address_space_operations erofs_raw_access_aops; -#ifdef CONFIG_EROFS_FS_ZIP -extern const struct address_space_operations z_erofs_vle_normalaccess_aops; -#endif +extern const struct address_space_operations z_erofs_aops; /* * Logical to physical block mapping, used by erofs_map_blocks() |