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disable SPLIT_RSS_COUNTING to fix zero RSS issue

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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>
This commit is contained in:
huangzq2 2020-07-08 13:29:04 +08:00 committed by caoqian4
parent 3754d45181
commit 2ad253dbf2
1 changed files with 6 additions and 0 deletions
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6
mm/Kconfig
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@ -216,11 +216,17 @@ config MEMORY_HOTREMOVE
# PA-RISC 7xxx's spinlock_t would enlarge struct page from 32 to 44 bytes.
# DEBUG_SPINLOCK and DEBUG_LOCK_ALLOC spinlock_t also enlarge struct page.
#
# Moto huangzq2: disable SPLIT_RSS_COUNTING if we have ulmk.
# ulmk fully relies on rss in proc/pid/statm, but rss in statm sometimes
# is zero if we enabled SPLIT_RSS_COUNTING, checked with Google,
# they agree to disalbe this. Also, our performance test didn't show any
# performance downgrade.
config SPLIT_PTLOCK_CPUS
int
default "999999" if !MMU
default "999999" if ARM && !CPU_CACHE_VIPT
default "999999" if PARISC && !PA20
default "999999" if HAVE_USERSPACE_LOW_MEMORY_KILLER
default "4"
config ARCH_ENABLE_SPLIT_PMD_PTLOCK