erofs: introduce fscache-based domain

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A new fscache-based shared domain mode is going to be introduced for
erofs. In which case, same data blobs in same domain will be shared
and reused to reduce on-disk space usage.

The implementation of sharing blobs will be introduced in subsequent
patches.

Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220918043456.147-4-zhujia.zj@bytedance.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

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Jia Zhu 2022-09-18 12:34:53 +08:00 • committed by Gao Xiang

parent e1de2da0b7

commit 8b7adf1dff

2 changed files with 121 additions and 17 deletions

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129

fs/erofs/fscache.c

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9

fs/erofs/internal.h

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