mm/sharepool: Make the definitions of MMAP_SHARE_POOL_{START|16G_START} more readable
hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I5I72Q CVE: NA -------------------------------- "TASK_SIZE - MMAP_SHARE_POOL_DVPP_SIZE" is puzzling. MMAP_SHARE_POOL_START = MMAP_SHARE_POOL_END - MMAP_SHARE_POOL_SIZE and MMAP_SHARE_POOL_16G_START = MMAP_SHARE_POOL_END - MMAP_SHARE_POOL_DVPP_SIZE make the memory layout not unintuitive. Signed-off-by: NChen Jun <chenjun102@huawei.com> Signed-off-by: NWang Wensheng <wangwensheng4@huawei.com>
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