b7f09ae583
Currently arch/x86/kernel/pci-dma.c always adds __GFP_NORETRY to the allocation flags, because it wants to be reasonably sure not to deadlock when calling alloc_pages(). But really that should only be done in two cases: - when allocating memory in the lower 16 MB DMA zone. If there's no free memory there, waiting or OOM killing is of no use - when optimistically trying an allocation in the DMA32 zone when dma_mask < DMA_32BIT_MASK hoping that the allocation happens to fall within the limits of the dma_mask Also blindly adding __GFP_NORETRY to the the gfp variable might not be a good idea since we then also use it when calling dma_ops->alloc_coherent(). Clearing it might also not be a good idea, dma_alloc_coherent()'s caller might have set it on purpose. The gfp variable should not be clobbered. [ mingo@elte.hu: converted to delta patch ontop of previous version. ] Signed-off-by: Miquel van Smoorenburg <miquels@cistron.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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.. | ||
boot | ||
configs | ||
crypto | ||
ia32 | ||
kernel | ||
kvm | ||
lguest | ||
lib | ||
mach-default | ||
mach-es7000 | ||
mach-generic | ||
mach-rdc321x | ||
mach-visws | ||
mach-voyager | ||
math-emu | ||
mm | ||
oprofile | ||
pci | ||
power | ||
vdso | ||
video | ||
xen | ||
Kconfig | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Makefile | ||
Makefile_32.cpu |