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| author |   Eric Dumazet <edumazet@google.com> | 2013-10-30 13:10:44 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-11-03 23:19:00 -0500 |
| commit | 74d332c13b2148ae934ea94dac1745ae92efe8e5 (patch) | |
| tree | 4f8f287774deaba28fa4c85d085d587ae7515aaf /net/Kconfig | |
| parent | Merge branch 'sctp_csum' (diff) | |
| download | linux-dev-74d332c13b2148ae934ea94dac1745ae92efe8e5.tar.xz linux-dev-74d332c13b2148ae934ea94dac1745ae92efe8e5.zip | |
net: extend net_device allocation to vmalloc()
Joby Poriyath provided a xen-netback patch to reduce the size of
xenvif structure as some netdev allocation could fail under
memory pressure/fragmentation.
This patch is handling the problem at the core level, allowing
any netdev structures to use vmalloc() if kmalloc() failed.
As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT
to kzalloc() flags to do this fallback only when really needed.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Joby Poriyath <joby.poriyath@citrix.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/Kconfig')
0 files changed, 0 insertions, 0 deletions