From 89eaeb09ba01632511f69ce8e14c8d2abd2dbe9e Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Sun, 10 Dec 2006 22:35:24 -0800 Subject: [PATCH] [IPVS]: Use msleep_interruptable() instead of ssleep() aka msleep() Dean Manners notices that when an IPVS synchonisation daemons are started the system load slowly climbs up to 1. This seems to be related to the call to ssleep(1) (aka msleep(1000) in the main loop. Replacing this with a call to msleep_interruptable() seems to make the problem go away. Though I'm not sure that it is correct. This is the second edition of this patch, which replaces ssleep() in the main loop for both the master and backup threads, as well as some thread synchronisation code. The latter is just for thorougness as it shouldn't be causing any problems. Signed-Off-By: Simon Horman Signed-off-by: David S. Miller --- net/ipv4/ipvs/ip_vs_sync.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ipv4/ipvs/ip_vs_sync.c b/net/ipv4/ipvs/ip_vs_sync.c index 91a075edd68e..7461eeb3a3dd 100644 --- a/net/ipv4/ipvs/ip_vs_sync.c +++ b/net/ipv4/ipvs/ip_vs_sync.c @@ -657,7 +657,7 @@ static void sync_master_loop(void) if (stop_master_sync) break; - ssleep(1); + msleep_interruptible(1000); } /* clean up the sync_buff queue */ @@ -714,7 +714,7 @@ static void sync_backup_loop(void) if (stop_backup_sync) break; - ssleep(1); + msleep_interruptible(1000); } /* release the sending multicast socket */ @@ -826,7 +826,7 @@ static int fork_sync_thread(void *startup) if ((pid = kernel_thread(sync_thread, startup, 0)) < 0) { IP_VS_ERR("could not create sync_thread due to %d... " "retrying.\n", pid); - ssleep(1); + msleep_interruptible(1000); goto repeat; } @@ -860,7 +860,7 @@ int start_sync_thread(int state, char *mcast_ifn, __u8 syncid) if ((pid = kernel_thread(fork_sync_thread, &startup, 0)) < 0) { IP_VS_ERR("could not create fork_sync_thread due to %d... " "retrying.\n", pid); - ssleep(1); + msleep_interruptible(1000); goto repeat; } -- 2.30.2