disable SPLIT_RSS_COUNTING to fix zero RSS issue
Change-Id: Iee0bdf2534fee660e64d8e8221c4dc571e13921e Signed-off-by: huangzq2 <huangzq2@motorola.com> Reviewed-on: https://gerrit.mot.com/1668699 SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Tested-by: Jira Key Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com> Submit-Approved: Jira Key Reviewed-by: Bingqian Yang <yangbq1@mt.com>
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@ -216,11 +216,17 @@ config MEMORY_HOTREMOVE
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# PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
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# DEBUG_SPINLOCK and DEBUG_LOCK_ALLOC spinlock_t also enlarge struct page.
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#
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# Moto huangzq2: disable SPLIT_RSS_COUNTING if we have ulmk.
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# ulmk fully relies on rss in proc/pid/statm, but rss in statm sometimes
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# is zero if we enabled SPLIT_RSS_COUNTING, checked with Google,
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# they agree to disalbe this. Also, our performance test didn't show any
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# performance downgrade.
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config SPLIT_PTLOCK_CPUS
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int
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default "999999" if !MMU
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default "999999" if ARM && !CPU_CACHE_VIPT
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default "999999" if PARISC && !PA20
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default "999999" if HAVE_USERSPACE_LOW_MEMORY_KILLER
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default "4"
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config ARCH_ENABLE_SPLIT_PMD_PTLOCK
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