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| author | Arthur Jones <ajones@riverbed.com> | 2008-07-25 01:49:09 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:49 -0700 |
| commit | 096846e2b0ef39cb7c348f837f06984ef6ba8aa7 (patch) | |
| tree | f09db5fb10bf099b2e0d575c887b30bf785a5bf3 /drivers/edac | |
| parent | 14cc571bb1d072d3f4be2875ea520ab03e093471 (diff) | |
| download | linux-096846e2b0ef39cb7c348f837f06984ef6ba8aa7.tar.gz linux-096846e2b0ef39cb7c348f837f06984ef6ba8aa7.tar.bz2 linux-096846e2b0ef39cb7c348f837f06984ef6ba8aa7.zip | |
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 <ajones@riverbed.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/edac_mc_sysfs.c | 22 |
1 files changed, 21 insertions, 1 deletions
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"); /* |