[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 683cb5bda870fc372e79500c105ddf16c9ab93b9..3548d9f31e0d5c6918d74115a5fd0f9f2b133f48 100644 (file)
--- a/fs/gfs2/daemon.c
+++ b/fs/gfs2/daemon.c
@@ -16,6 +16,7 @@
 #include <linux/delay.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/lm_interface.h>
+#include <linux/freezer.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -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);
        }