[GFS2] Move gfs2_logd into log.c
This means that we can mark gfs2_ail1_empty static and prepares
the way for further changes.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 9192398..e88a684 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -16,6 +16,8 @@
#include <linux/crc32.h>
#include <linux/lm_interface.h>
#include <linux/delay.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
#include "gfs2.h"
#include "incore.h"
@@ -26,6 +28,7 @@
#include "meta_io.h"
#include "util.h"
#include "dir.h"
+#include "super.h"
#define PULL 1
@@ -208,7 +211,7 @@
gfs2_log_unlock(sdp);
}
-int gfs2_ail1_empty(struct gfs2_sbd *sdp, int flags)
+static int gfs2_ail1_empty(struct gfs2_sbd *sdp, int flags)
{
struct gfs2_ail *ai, *s;
int ret;
@@ -859,3 +862,54 @@
}
}
+
+/**
+ * gfs2_logd - Update log tail as Active Items get flushed to in-place blocks
+ * @sdp: Pointer to GFS2 superblock
+ *
+ * Also, periodically check to make sure that we're using the most recent
+ * journal index.
+ */
+
+int gfs2_logd(void *data)
+{
+ struct gfs2_sbd *sdp = data;
+ struct gfs2_holder ji_gh;
+ unsigned long t;
+ int need_flush;
+
+ while (!kthread_should_stop()) {
+ /* Advance the log tail */
+
+ t = sdp->sd_log_flush_time +
+ gfs2_tune_get(sdp, gt_log_flush_secs) * HZ;
+
+ gfs2_ail1_empty(sdp, DIO_ALL);
+ gfs2_log_lock(sdp);
+ need_flush = sdp->sd_log_num_buf > gfs2_tune_get(sdp, gt_incore_log_blocks);
+ gfs2_log_unlock(sdp);
+ if (need_flush || time_after_eq(jiffies, t)) {
+ gfs2_log_flush(sdp, NULL);
+ sdp->sd_log_flush_time = jiffies;
+ }
+
+ /* Check for latest journal index */
+
+ t = sdp->sd_jindex_refresh_time +
+ gfs2_tune_get(sdp, gt_jindex_refresh_secs) * HZ;
+
+ if (time_after_eq(jiffies, t)) {
+ if (!gfs2_jindex_hold(sdp, &ji_gh))
+ gfs2_glock_dq_uninit(&ji_gh);
+ sdp->sd_jindex_refresh_time = jiffies;
+ }
+
+ t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
+ if (freezing(current))
+ refrigerator();
+ schedule_timeout_interruptible(t);
+ }
+
+ return 0;
+}
+