Attachment 1757794 Details for Bug 1927973 – Remove whole process delay on ENOBUFS

[patch] Remove whole process delay on ENOBUFS

0002-Remove-sleeping-on-netlink-ENOBUFS.patch (text/plain), 1001 bytes, created by Petr Menšík on 2021-02-18 13:27:59 UTC

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Creator: Petr Menšík

Created: 2021-02-18 13:27:59 UTC

Size: 1001 bytes

patch

obsolete

>From f232f382f06f39b36e2287233c21fa2ccc7be320 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
>Date: Wed, 17 Feb 2021 18:15:54 +0100
>Subject: [PATCH 2/4] Remove sleeping on netlink ENOBUFS
>
>With reduced number of written events netlink should receive ENOBUFS
>rarely. It does not make sense to wait if it is received. It is just a
>signal some packets got missing. Fast reading all pending packets is required,
>seq checking ensures it already. Finishes changes by
>commit 1d07667ac77c55b9de56b1b2c385167e0e0ec27a.
>---
> src/netlink.c | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
>diff --git a/src/netlink.c b/src/netlink.c
>index 7ff829e..101313f 100644
>--- a/src/netlink.c
>+++ b/src/netlink.c
>@@ -204,10 +204,7 @@ int iface_enumerate(int family, void *parm, int (*callback)())
>       if ((len = netlink_recv()) == -1)
> 	{
> 	  if (errno == ENOBUFS)
>-	    {
>-	      sleep(1);
>-	      goto again;
>-	    }
>+	    goto again;
> 	  return 0;
> 	}
> 
>-- 
>2.26.2
>

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