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Hi David,
The IPVS people needs this patch for net-next to allow to tune the
socket buffer for ipvs_sync (the state synchronization that they do
from kernel-space). This exports sysctl_wmem_max and sysctl_rmem_max
living in net/core/sock.c. So far, they've been using global socket
tuning to make them bigger (this avoids overruning the socket under
high peak of state-change synchronization).
I think this is out of my scope (since it's out of the netfilter
tree).
Would you acknowledge it, please?
On Wed, May 02, 2012 at 03:22:42PM +0900, Simon Horman wrote:
> From: Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
>
> To build ip_vs as a module sysctl_rmem_max and sysctl_wmem_max
> needs to be exported.
> The dependency was added by "ipvs: wakeup master thread" patch
>
> Signed-off-by: Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
> Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
> ---
> net/core/sock.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/net/core/sock.c b/net/core/sock.c
> index c7e60ea..ac3131a 100644
> --- a/net/core/sock.c
> +++ b/net/core/sock.c
> @@ -258,7 +258,9 @@ static struct lock_class_key af_callback_keys[AF_MAX];
>
> /* Run time adjustable parameters. */
> __u32 sysctl_wmem_max __read_mostly = SK_WMEM_MAX;
> +EXPORT_SYMBOL(sysctl_wmem_max);
> __u32 sysctl_rmem_max __read_mostly = SK_RMEM_MAX;
> +EXPORT_SYMBOL(sysctl_rmem_max);
> __u32 sysctl_wmem_default __read_mostly = SK_WMEM_MAX;
> __u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
>
> --
> 1.7.10
>
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