Messages in this thread Patch in this message | | | Date | Tue, 7 Jun 2022 14:44:58 -0400 | Subject | [PATCH v6 08/11] dmapool: speedup DMAPOOL_DEBUG with init_on_alloc | From | Tony Battersby <> |
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Avoid double-memset of the same allocated memory in dma_pool_alloc() when both DMAPOOL_DEBUG is enabled and init_on_alloc=1.
Signed-off-by: Tony Battersby <tonyb@cybernetics.com> --- mm/dmapool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/dmapool.c b/mm/dmapool.c index 44038089a41a..c7ec38cb4631 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -356,7 +356,7 @@ void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags, break; } } - if (!(mem_flags & __GFP_ZERO)) + if (!want_init_on_alloc(mem_flags)) memset(retval, POOL_POISON_ALLOCATED, pool->size); #endif spin_unlock_irqrestore(&pool->lock, flags); -- 2.25.1
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