From: Len Brown <len.br...@intel.com> Remove sys_sync() from the kernel's suspend flow.
sys_sync() is extremely expensive in some configurations, and so the kernel should not force users to pay this cost on every suspend. The user-space utilities s2ram and s2disk choose to invoke sync() today. A user can invoke suspend directly via /sys/power/state to skip that cost. Signed-off-by: Len Brown <len.br...@intel.com> --- kernel/power/suspend.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index b7d6b3a..6d237bb 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -473,12 +473,6 @@ static int enter_state(suspend_state_t state) if (state == PM_SUSPEND_FREEZE) freeze_begin(); - trace_suspend_resume(TPS("sync_filesystems"), 0, true); - printk(KERN_INFO "PM: Syncing filesystems ... "); - sys_sync(); - printk("done.\n"); - trace_suspend_resume(TPS("sync_filesystems"), 0, false); - pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(state); if (error) -- 2.4.0.rc1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/