net: diag: add a scheduling point in inet_diag_dump_icsk()
authorEric Dumazet <edumazet@google.com>
Mon, 14 Mar 2016 22:40:00 +0000 (15:40 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 14 Mar 2016 23:38:09 +0000 (19:38 -0400)
commitacffb584cda7069b0c2c83045503ccd07516a891
tree342e4e51d76076603adba31d93313f436cf67709
parente3ebd894f084255fde19116955ba7054858ff5d6
net: diag: add a scheduling point in inet_diag_dump_icsk()

On loaded TCP servers, looking at millions of sockets can hold
cpu for many seconds, if the lookup condition is very narrow.

(eg : ss dst 1.2.3.4 )

Better add a cond_resched() to allow other processes to access
the cpu.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/inet_diag.c