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Gao Xiang authored
In practice, in order to do cached decompression rather than reuse them for in-place decompression and make full use of pages in page_pool instead of allocating as much as possible, an unallocated placeholder was introduce to mark all in compressed_pages[] and they will be replaced at the time of submission. Previously EROFS_UNALLOCATED_CACHED_PAGE was included in internal.h, which is unnecessary since it's only internally used in decompression subsystem, move it to unzip_vle.c and rename it to PAGE_UNALLOCATED. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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