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

PATCH New Nigel Cunningham 1 participant 1 message Sep 16, 2004

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Nigel Cunningham

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PATCH 1/1 Suspend2 Merge: Supress various actions/errors while suspending [4/5]

Hi.

Patch 4: Disable pdflush while suspending.

Regards,

Nigel

mm/page-writeback.c +11 -0
diff -ruN linux-2.6.9-rc1/mm/page-writeback.c software-suspend-linux-2.6.9-rc1-rev3/mm/page-writeback.c
@@ -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)
Signature · 7 lines
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.