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Commit f2681234 authored by Hareesh Gundu's avatar Hareesh Gundu
Browse files

msm: kgsl: Fix NR_KERNEL_MISC_RECLAIMABLE page stats issue 



We do call _kgsl_pool_get_page() when pool is empty through
page pool allocation path. This will cause incorrect page
stats accounting for NR_KERNEL_MISC_RECLAIMABLE. Hence Add
a NULL check before page stats to fix it.

Change-Id: I5823177d7e242db25aeca2da5a9ddf6d1982859b
Signed-off-by: default avatarHareesh Gundu <hareeshg@codeaurora.org>
parent 5b478488

drivers/gpu/msm/kgsl_pool.c

+7 −4
Original line number Diff line number Diff line
@@ -120,11 +120,14 @@ _kgsl_pool_get_page(struct kgsl_page_pool *pool) 
	struct page *p = NULL;



	spin_lock(&pool->list_lock);

	if (pool->page_count) {

		p = list_first_entry(&pool->page_list, struct page, lru);



	p = list_first_entry_or_null(&pool->page_list, struct page, lru);

	if (p == NULL) {

		spin_unlock(&pool->list_lock);

		return NULL;

	}

	pool->page_count--;

	list_del(&p->lru);

	}

	spin_unlock(&pool->list_lock);

	mod_node_page_state(page_pgdat(p), NR_KERNEL_MISC_RECLAIMABLE,

				-(1 << pool->pool_order));