[PATCH] Suspend2 Merge: Supress various actions/errors while suspending [4/5]

[PATCH] Suspend2 Merge: Supress various actions/errors while suspending [4/5]

[Nigel Cunningham]

Hi.

Patch 4: Disable pdflush while suspending.

Regards,

Nigel

diff -ruN linux-2.6.9-rc1/mm/page-writeback.c software-suspend-linux-2.6.9-rc1-rev3/mm/page-writeback.c
--- linux-2.6.9-rc1/mm/page-writeback.c	2004-09-07 21:59:01.000000000 +1000
+++ software-suspend-linux-2.6.9-rc1-rev3/mm/page-writeback.c	2004-09-09 19:36:24.000000000 +1000
@@ -29,6 +29,7 @@
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
 #include <linux/syscalls.h>
+#include <linux/suspend.h>
 
 /*
  * The maximum number of pages to writeout in a single bdflush/kupdate
@@ -369,6 +371,13 @@
 		.for_kupdate	= 1,
 	};
 
+#ifdef CONFIG_SOFTWARE_SUSPEND2
+	if (software_suspend_state & SOFTWARE_SUSPEND_RUNNING) {
+		start_jif = jiffies;
+		next_jif = start_jif + (dirty_writeback_centisecs * HZ) / 100;
+		goto out;
+	}
+#endif
 	sync_supers();
 
 	get_writeback_state(&wbs);
@@ -389,6 +398,9 @@
 		}
 		nr_to_write -= MAX_WRITEBACK_PAGES - wbc.nr_to_write;
 	}
+#ifdef CONFIG_SOFTWARE_SUSPEND2
+out:
+#endif
 	if (time_before(next_jif, jiffies + HZ))
 		next_jif = jiffies + HZ;
 	if (dirty_writeback_centisecs)

-- 
Nigel Cunningham
Pastoral Worker
Christian Reformed Church of Tuggeranong
PO Box 1004, Tuggeranong, ACT 2901

Many today claim to be tolerant. True tolerance, however, can cope with others
being intolerant.