Currently a call to dma_pool_alloc() with a ___GFP_ZERO flag returns
a non-zeroed memory region.
This patchset adds support for the ___GFP_ZERO flag to dma_pool_alloc(),
adds 2 wrapper functions for allocing zeroed memory from a pool,
and provides a coccinelle script for finding & replacing instances of
dma_pool_alloc() followed by memset(0) with a single dma_pool_zalloc() call.
Sean O. Stalley (4):
mm: Add support for __GFP_ZERO flag to dma_pool_alloc()
mm: Add dma_pool_zalloc() call to DMA API
pci: mm: Add pci_pool_zalloc() call
coccinelle: mm: scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci
Documentation/DMA-API.txt | 7 ++
include/linux/dmapool.h | 6 ++
include/linux/pci.h | 2 +
mm/dmapool.c | 6 +-
.../coccinelle/api/alloc/pool_zalloc-simple.cocci | 84 ++++++++++++++++++++++
5 files changed, 104 insertions(+), 1 deletion(-)
create mode 100644 scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci
--
1.9.1
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a non-zeroed memory region.
This patchset adds support for the ___GFP_ZERO flag to dma_pool_alloc(),
adds 2 wrapper functions for allocing zeroed memory from a pool,
and provides a coccinelle script for finding & replacing instances of
dma_pool_alloc() followed by memset(0) with a single dma_pool_zalloc() call.
Sean O. Stalley (4):
mm: Add support for __GFP_ZERO flag to dma_pool_alloc()
mm: Add dma_pool_zalloc() call to DMA API
pci: mm: Add pci_pool_zalloc() call
coccinelle: mm: scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci
Documentation/DMA-API.txt | 7 ++
include/linux/dmapool.h | 6 ++
include/linux/pci.h | 2 +
mm/dmapool.c | 6 +-
.../coccinelle/api/alloc/pool_zalloc-simple.cocci | 84 ++++++++++++++++++++++
5 files changed, 104 insertions(+), 1 deletion(-)
create mode 100644 scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/