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ion: Consider ion pool pages as indirectly reclaimable

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An issue is observed where mallocs are failing due to overcommit failure.
The failure happens when there is high ION page pool since ION page
pool is not considered reclaimable by the overcommit calculation code.
This change considers ion pool pages as indirectly reclaimable and thus
accounted as available memory in the overcommit calculation.

Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vijayanand Jitta 2018-04-25 08:54:47 +05:30 committed by Greg Kroah-Hartman
parent 7a787c25b8
commit 548cbba116
1 changed files with 5 additions and 0 deletions
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5
drivers/staging/android/ion/ion_page_pool.c
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@ -32,6 +32,9 @@ static void ion_page_pool_add(struct ion_page_pool *pool, struct page *page)
list_add_tail(&page->lru, &pool->low_items);
pool->low_count++;
}
mod_node_page_state(page_pgdat(page), NR_INDIRECTLY_RECLAIMABLE_BYTES,
(1 << (PAGE_SHIFT + pool->order)));
mutex_unlock(&pool->mutex);
}
@ -50,6 +53,8 @@ static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)
}
list_del(&page->lru);
mod_node_page_state(page_pgdat(page), NR_INDIRECTLY_RECLAIMABLE_BYTES,
-(1 << (PAGE_SHIFT + pool->order)));
return page;
}