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Commit 0d21518b authored by Vinayak Menon's avatar Vinayak Menon Committed by Swathi Sridhar
Browse files

mm: memory: reduce fault_around_bytes 



mapping multiple pages on a fault result in page_check_references
hitting more number of referenced inactive pages and this results
in increased pressure on reclaim. Reduce it to the lowest possible
value. Reduced kswapd wakeups are observed with this change.

Change-Id: I03c6cac9f28fa328abab7b40f5f01144084a147c
Signed-off-by: default avatarVinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
Signed-off-by: default avatarCharan Teja Reddy <charante@codeaurora.org>
parent f4f905e8

mm/memory.c

+1 −1
Original line number Diff line number Diff line
@@ -3514,7 +3514,7 @@ vm_fault_t finish_fault(struct vm_fault *vmf) 
}



static unsigned long fault_around_bytes __read_mostly =

	rounddown_pow_of_two(65536);

	rounddown_pow_of_two(4096);



#ifdef CONFIG_DEBUG_FS

static int fault_around_bytes_get(void *data, u64 *val)