From: Venki Pallipadi <venkatesh.pallipadi@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/4] Make page-writeback timers 1 sec jiffy aligned
Date: Tue, 29 May 2007 10:59:51 -0700 [thread overview]
Message-ID: <20070529175951.GB5411@linux-os.sc.intel.com> (raw)
timer round_jiffies in page-writeback.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Index: linux-2.6.22-rc-mm/mm/page-writeback.c
===================================================================
--- linux-2.6.22-rc-mm.orig/mm/page-writeback.c 2007-05-25 10:49:11.000000000 -0700
+++ linux-2.6.22-rc-mm/mm/page-writeback.c 2007-05-25 10:49:29.000000000 -0700
@@ -469,7 +469,7 @@
if (time_before(next_jif, jiffies + HZ))
next_jif = jiffies + HZ;
if (dirty_writeback_interval)
- mod_timer(&wb_timer, next_jif);
+ mod_timer(&wb_timer, round_jiffies(next_jif));
}
/*
@@ -481,7 +481,7 @@
proc_dointvec_userhz_jiffies(table, write, file, buffer, length, ppos);
if (dirty_writeback_interval) {
mod_timer(&wb_timer,
- jiffies + dirty_writeback_interval);
+ round_jiffies(jiffies + dirty_writeback_interval));
} else {
del_timer(&wb_timer);
}
@@ -491,7 +491,8 @@
static void wb_timer_fn(unsigned long unused)
{
if (pdflush_operation(wb_kupdate, 0) < 0)
- mod_timer(&wb_timer, jiffies + HZ); /* delay 1 second */
+ mod_timer(&wb_timer, round_jiffies(jiffies + HZ));
+ /* delay 1 second */
}
static void laptop_flush(unsigned long unused)
@@ -511,7 +512,7 @@
*/
void laptop_io_completion(void)
{
- mod_timer(&laptop_mode_wb_timer, jiffies + laptop_mode);
+ mod_timer(&laptop_mode_wb_timer, round_jiffies(jiffies + laptop_mode));
}
/*
@@ -582,7 +583,7 @@
*/
void __init page_writeback_init(void)
{
- mod_timer(&wb_timer, jiffies + dirty_writeback_interval);
+ mod_timer(&wb_timer, round_jiffies(jiffies + dirty_writeback_interval));
writeback_set_ratelimit();
register_cpu_notifier(&ratelimit_nb);
}
next reply other threads:[~2007-05-29 18:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-29 17:59 Venki Pallipadi [this message]
2007-05-30 17:56 ` [PATCH 2/4] Make page-writeback timers 1 sec jiffy aligned Andrew Morton
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