Messages in this thread | | | Subject | Re: [PATCH 1/2] net: Export __netdev_alloc_frag() to allow gfp_mask flags | From | Eric Dumazet <> | Date | Wed, 29 Jul 2015 18:31:56 +0200 |
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On Wed, 2015-07-29 at 11:10 -0400, WingMan Kwok wrote: > This patch makes the function __netdev_alloc_frag() non-static and > exports it so that drivers that need to specify additional flags, > such as __GFP_DMA, can use it. The currently exported function, > netdev_alloc_frag() doesn't allow passing in gfp_mask flags. > > Signed-off-by: WingMan Kwok <w-kwok2@ti.com> > Signed-off-by: Reece R. Pollack <x0183204@ti.com> > --- > include/linux/skbuff.h | 1 + > net/core/skbuff.c | 3 ++- > 2 files changed, 3 insertions(+), 1 deletion(-)
You can not do this.
__napi_alloc_frag() uses __alloc_page_frag() using a per cpu reserve.
This per cpu reserve would be shared by regular GFP_ATOMIC and your __GFP_DMA allocations.
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