From: Steven Whitehouse <swhiteho@redhat.com>
Subject: Re: [RHEL5.1 PATCH] [GFS2] Fix bz #192082 - System won't suspend 	with GFS2 file system mounted
Date: Tue, 10 Jul 2007 11:47:23 +0100
Bugzilla: 192082
Message-Id: <1184064443.8765.206.camel@quoit>
Changelog: [GFS2] Mounted file system won't suspend

X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fsteve%2Fgfs2-2.6-nmw.git;a=commitdiff_plain;h=b3657629249eba0b3b61ff964d6e1539b469d117

[GFS2] System won't suspend with GFS2 file system mounted

The kernel threads in gfs2, namely gfs2_scand, gfs2_logd, gfs2_quotad,
gfs2_glockd, gfs2_recoverd weren't doing anything when the suspend
mechanism was trying to freeze them.

I put in calls to refrigerator() in the loops for all the daemons and
suspend works as expected.

Signed-off-by: Abhijith Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

diff --git a/fs/gfs2/daemon.c b/fs/gfs2/daemon.c
index 683cb5b..3548d9f 100644
--- a/fs/gfs2/daemon.c
+++ b/fs/gfs2/daemon.c
@@ -49,6 +50,8 @@ int gfs2_scand(void *data)
 	while (!kthread_should_stop()) {
 		gfs2_scand_internal(sdp);
 		t = gfs2_tune_get(sdp, gt_scand_secs) * HZ;
+		if (freezing(current))
+			refrigerator();
 		schedule_timeout_interruptible(t);
 	}
 
@@ -74,6 +77,8 @@ int gfs2_glockd(void *data)
 		wait_event_interruptible(sdp->sd_reclaim_wq,
 					 (atomic_read(&sdp->sd_reclaim_count) ||
 					 kthread_should_stop()));
+		if (freezing(current))
+			refrigerator();
 	}
 
 	return 0;
@@ -93,6 +98,8 @@ int gfs2_recoverd(void *data)
 	while (!kthread_should_stop()) {
 		gfs2_check_journals(sdp);
 		t = gfs2_tune_get(sdp,  gt_recoverd_secs) * HZ;
+		if (freezing(current))
+			refrigerator();
 		schedule_timeout_interruptible(t);
 	}
 
@@ -141,6 +148,8 @@ int gfs2_logd(void *data)
 		}
 
 		t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
+		if (freezing(current))
+			refrigerator();
 		schedule_timeout_interruptible(t);
 	}
 
@@ -191,6 +200,8 @@ int gfs2_quotad(void *data)
 		gfs2_quota_scan(sdp);
 
 		t = gfs2_tune_get(sdp, gt_quotad_secs) * HZ;
+		if (freezing(current))
+			refrigerator();
 		schedule_timeout_interruptible(t);
 	}