From 096846e2b0ef39cb7c348f837f06984ef6ba8aa7 Mon Sep 17 00:00:00 2001 From: Arthur Jones Date: Fri, 25 Jul 2008 01:49:09 -0700 Subject: [PATCH] edac: core fix workq timer When updating the edac_mc_poll_msec module parameter from the sysfs /sys/module/edac_core/parameters/edac_mc_poll_msec file, we don't update the workq timers. So that, if we move from a big poll time to a small one, the small one won't take effect until the big one has timed out. Here we provide a new module parameter set method to call out to the update routine. This brings the /sys/module/edac_core/parameters functionality up to that provided by the /sys/drivers/system/edac/mc sysfs module parameter files so that we can remove them or at least link to the /sys/module files... Signed-off-by: Arthur Jones Signed-off-by: Doug Thompson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/edac/edac_mc_sysfs.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 021d18795145..7bb9c1532b90 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -44,6 +44,25 @@ int edac_mc_get_poll_msec(void) return edac_mc_poll_msec; } +static int edac_set_poll_msec(const char *val, struct kernel_param *kp) +{ + long l; + int ret; + + if (!val) + return -EINVAL; + + ret = strict_strtol(val, 0, &l); + if (ret == -EINVAL || ((int)l != l)) + return -EINVAL; + *((int *)kp->arg) = l; + + /* notify edac_mc engine to reset the poll period */ + edac_mc_reset_delay_period(l); + + return 0; +} + /* Parameter declarations for above */ module_param(edac_mc_panic_on_ue, int, 0644); MODULE_PARM_DESC(edac_mc_panic_on_ue, "Panic on uncorrected error: 0=off 1=on"); @@ -53,7 +72,8 @@ MODULE_PARM_DESC(edac_mc_log_ue, module_param(edac_mc_log_ce, int, 0644); MODULE_PARM_DESC(edac_mc_log_ce, "Log correctable error to console: 0=off 1=on"); -module_param(edac_mc_poll_msec, int, 0644); +module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_int, + &edac_mc_poll_msec, 0644); MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds"); /* -- 2.20.1