From cab8d154e2ed43fe1495aa0e18103e747552891b Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Mon, 3 Jul 2006 12:02:36 -0400 Subject: [PATCH] ieee1394: nodemgr: convert nodemgr_serialize semaphore to mutex Another trivial sem2mutex conversion. Side note: nodemgr_serialize's purpose, when introduced in linux1394's revision 529 in July 2002, was to protect several data structures which are now largely handled by or together with Linux' driver core and are now protected by the LDM's own mechanisms. It may very well be possible to remove this mutex now. But fully parallelized node scanning is on our long-term TODO list anyway; the mutex will certainly go away then. Signed-off-by: Stefan Richter Signed-off-by: Ben Collins --- drivers/ieee1394/nodemgr.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 2e6dc5990ce..f8f6079cc48 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -158,7 +158,7 @@ static struct csr1212_bus_ops nodemgr_csr_ops = { * but now we are much simpler because of the LDM. */ -static DECLARE_MUTEX(nodemgr_serialize); +static DEFINE_MUTEX(nodemgr_serialize); struct host_info { struct hpsb_host *host; @@ -1621,7 +1621,7 @@ static int nodemgr_host_thread(void *__hi) if (kthread_should_stop()) goto exit; - if (down_interruptible(&nodemgr_serialize)) { + if (mutex_lock_interruptible(&nodemgr_serialize)) { if (try_to_freeze()) continue; goto exit; @@ -1650,7 +1650,7 @@ static int nodemgr_host_thread(void *__hi) if (!nodemgr_check_irm_capability(host, reset_cycles) || !nodemgr_do_irm_duties(host, reset_cycles)) { reset_cycles++; - up(&nodemgr_serialize); + mutex_unlock(&nodemgr_serialize); continue; } reset_cycles = 0; @@ -1668,10 +1668,10 @@ static int nodemgr_host_thread(void *__hi) /* Update some of our sysfs symlinks */ nodemgr_update_host_dev_links(host); - up(&nodemgr_serialize); + mutex_unlock(&nodemgr_serialize); } unlock_exit: - up(&nodemgr_serialize); + mutex_unlock(&nodemgr_serialize); exit: HPSB_VERBOSE("NodeMgr: Exiting thread"); return 0; -- cgit v1.2.3