evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mm: zcache: do not wake up kswapd for zcache allocs

Browse source 
zcache allocations happen during reclaim of pages,
and waking up kswapd at this time hinders system
performance. During tests it was seen that without
this patch, there were a lot of kswapd wakeups and
was resulting in bad launches.

Change-Id: Ic0f0240b8fdad6b3fe142b2bdc0366cfd870635e
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
This commit is contained in:
Vinayak Menon 2015-08-07 12:57:14 +05:30 • committed by David Keitel
parent 5ef8272721
commit 347c419ead
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
mm/zcache.c
View file

@ -73,7 +73,8 @@ static u64 zcache_pool_shrink_pages;
static atomic_t zcache_stored_pages = ATOMIC_INIT(0);
#define GFP_ZCACHE \
(__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)
(__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | \
__GFP_NOMEMALLOC | __GFP_NO_KSWAPD)
/*
* Zcache receives pages for compression through the Cleancache API and is able
* to evict pages from its own compressed pool on an LRU basis in the case that