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path: root/fs/gfs2/log.c
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Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index ea69376c00d..cadfef193e5 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -171,13 +171,14 @@ int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks)
while(sdp->sd_log_blks_free <= blks) {
gfs2_log_unlock(sdp);
gfs2_ail1_empty(sdp, 0);
- gfs2_log_flush(sdp);
+ gfs2_log_flush(sdp, NULL);
if (try++)
gfs2_ail1_start(sdp, 0);
gfs2_log_lock(sdp);
}
sdp->sd_log_blks_free -= blks;
+ /* printk(KERN_INFO "reserved %u blocks (%u left)\n", blks, sdp->sd_log_blks_free); */
gfs2_log_unlock(sdp);
mutex_unlock(&sdp->sd_log_reserve_mutex);
@@ -199,6 +200,7 @@ void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
gfs2_log_lock(sdp);
sdp->sd_log_blks_free += blks;
+ /* printk(KERN_INFO "released %u blocks (%u left)\n", blks, sdp->sd_log_blks_free); */
gfs2_assert_withdraw(sdp,
sdp->sd_log_blks_free <= sdp->sd_jdesc->jd_blocks);
gfs2_log_unlock(sdp);
@@ -342,6 +344,7 @@ static void log_pull_tail(struct gfs2_sbd *sdp, unsigned int new_tail, int pull)
gfs2_log_lock(sdp);
sdp->sd_log_blks_free += dist - ((pull) ? 1 : 0);
+ /* printk(KERN_INFO "pull tail refunding %u blocks (%u left) pull=%d\n", dist - ((pull) ? 1 : 0), sdp->sd_log_blks_free, pull); */
gfs2_assert_withdraw(sdp,
sdp->sd_log_blks_free <= sdp->sd_jdesc->jd_blocks);
gfs2_log_unlock(sdp);
@@ -364,6 +367,8 @@ static void log_write_header(struct gfs2_sbd *sdp, uint32_t flags, int pull)
unsigned int tail;
uint32_t hash;
+ /* printk(KERN_INFO "log write header start (flags=%08x, pull=%d)\n", flags, pull); */
+
bh = sb_getblk(sdp->sd_vfs, blkno);
lock_buffer(bh);
memset(bh->b_data, 0, bh->b_size);
@@ -398,6 +403,8 @@ static void log_write_header(struct gfs2_sbd *sdp, uint32_t flags, int pull)
sdp->sd_log_idle = (tail == sdp->sd_log_flush_head);
log_incr_head(sdp);
+
+ /* printk(KERN_INFO "log write header out\n"); */
}
static void log_flush_commit(struct gfs2_sbd *sdp)
@@ -432,20 +439,16 @@ static void log_flush_commit(struct gfs2_sbd *sdp)
}
/**
- * gfs2_log_flush_i - flush incore transaction(s)
+ * gfs2_log_flush - flush incore transaction(s)
* @sdp: the filesystem
* @gl: The glock structure to flush. If NULL, flush the whole incore log
*
*/
-void gfs2_log_flush_i(struct gfs2_sbd *sdp, struct gfs2_glock *gl)
+void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl)
{
struct gfs2_ail *ai;
- ai = kzalloc(sizeof(struct gfs2_ail), GFP_NOFS | __GFP_NOFAIL);
- INIT_LIST_HEAD(&ai->ai_ail1_list);
- INIT_LIST_HEAD(&ai->ai_ail2_list);
-
down_write(&sdp->sd_log_flush_lock);
if (gl) {
@@ -453,12 +456,14 @@ void gfs2_log_flush_i(struct gfs2_sbd *sdp, struct gfs2_glock *gl)
if (list_empty(&gl->gl_le.le_list)) {
gfs2_log_unlock(sdp);
up_write(&sdp->sd_log_flush_lock);
- kfree(ai);
return;
}
gfs2_log_unlock(sdp);
}
+ ai = kzalloc(sizeof(struct gfs2_ail), GFP_NOFS | __GFP_NOFAIL);
+ INIT_LIST_HEAD(&ai->ai_ail1_list);
+ INIT_LIST_HEAD(&ai->ai_ail2_list);
gfs2_assert_withdraw(sdp,
sdp->sd_log_num_buf == sdp->sd_log_commited_buf);
@@ -476,11 +481,12 @@ void gfs2_log_flush_i(struct gfs2_sbd *sdp, struct gfs2_glock *gl)
log_write_header(sdp, 0, PULL);
lops_after_commit(sdp, ai);
sdp->sd_log_head = sdp->sd_log_flush_head;
- if (sdp->sd_log_flush_wrapped)
- sdp->sd_log_wraps++;
+
+ /* printk(KERN_INFO "sd_log_num_hdrs %u\n", sdp->sd_log_num_hdrs); */
sdp->sd_log_blks_reserved =
sdp->sd_log_commited_buf =
+ sdp->sd_log_num_hdrs =
sdp->sd_log_commited_revoke = 0;
gfs2_log_lock(sdp);
@@ -519,8 +525,7 @@ static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
sdp->sd_log_blks_free += tr->tr_reserved -
(reserved - sdp->sd_log_blks_reserved);
- gfs2_assert_withdraw(sdp,
- sdp->sd_log_blks_free >= old);
+ gfs2_assert_withdraw(sdp, sdp->sd_log_blks_free >= old);
gfs2_assert_withdraw(sdp,
sdp->sd_log_blks_free <= sdp->sd_jdesc->jd_blocks);
@@ -548,7 +553,7 @@ void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
gfs2_log_lock(sdp);
if (sdp->sd_log_num_buf > gfs2_tune_get(sdp, gt_incore_log_blocks)) {
gfs2_log_unlock(sdp);
- gfs2_log_flush(sdp);
+ gfs2_log_flush(sdp, NULL);
} else
gfs2_log_unlock(sdp);
}
@@ -583,8 +588,6 @@ void gfs2_log_shutdown(struct gfs2_sbd *sdp)
gfs2_assert_withdraw(sdp, list_empty(&sdp->sd_ail2_list));
sdp->sd_log_head = sdp->sd_log_flush_head;
- if (sdp->sd_log_flush_wrapped)
- sdp->sd_log_wraps++;
sdp->sd_log_tail = sdp->sd_log_head;
up_write(&sdp->sd_log_flush_lock);