Are there some potential problems that I should be aware of if I allocate the memory which doesn't have any relation to peripheral hardwares(i.e. DMA,PCI) by vmalloc() instead of kmalloc() to avoid the page allocation failure?

[孙世龙 sunshilong <sunshilong369@xxxxxxxxx>]

Hi, list

Besides kmalloc() is more efficient, are there some potential problems that I should be aware of if I allocate the memory which doesn't have any relation to peripheral hardware(i.e. DMA, PCI) by vmalloc() instead of kmalloc()  to avoid the page allocation failure.

Thank you for your attention to this matter.