ocfs2: Remove masklog ML_REFCOUNT.

Change all the "mlog(0," in fs/ocfs2/refcounttree.c to trace events.
And finally remove masklog ML_REFCOUNT.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>

4 files changed, 341 insertions, 82 deletions

diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index caba07c2dac6..a961cca12529 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -108,7 +108,6 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
         define_mask(EXPORT),
         define_mask(XATTR),
         define_mask(QUOTA),
-        define_mask(REFCOUNT),
         define_mask(BASTS),
         define_mask(RESERVATIONS),
         define_mask(CLUSTER),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 155835a6b1c3..845ea2b02f0b 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -110,7 +110,6 @@
 #define ML_EXPORT       0x0000000010000000ULL /* ocfs2 export operations */
 #define ML_XATTR        0x0000000020000000ULL /* ocfs2 extended attributes */
 #define ML_QUOTA        0x0000000040000000ULL /* ocfs2 quota operations */
-#define ML_REFCOUNT     0x0000000080000000ULL /* refcount tree operations */
 #define ML_BASTS        0x0000000100000000ULL /* dlmglue asts and basts */
 #define ML_RESERVATIONS 0x0000000200000000ULL /* ocfs2 alloc reservations */
 #define ML_CLUSTER      0x0000000400000000ULL /* cluster stack */
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 335edc50f132..a8b57ca7bdb5 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -133,6 +133,30 @@ DEFINE_EVENT(ocfs2__ull_ull, name,	\
         TP_PROTO(unsigned long long val1, unsigned long long val2),     \
         TP_ARGS(val1, val2))
 
+DECLARE_EVENT_CLASS(ocfs2__ull_ull_uint,
+        TP_PROTO(unsigned long long value1,
+                 unsigned long long value2, unsigned int value3),
+        TP_ARGS(value1, value2, value3),
+        TP_STRUCT__entry(
+                __field(unsigned long long, value1)
+                __field(unsigned long long, value2)
+                __field(unsigned int, value3)
+        ),
+        TP_fast_assign(
+                __entry->value1 = value1;
+                __entry->value2 = value2;
+                __entry->value3 = value3;
+        ),
+        TP_printk("%llu %llu %u",
+                  __entry->value1, __entry->value2, __entry->value3)
+);
+
+#define DEFINE_OCFS2_ULL_ULL_UINT_EVENT(name)   \
+DEFINE_EVENT(ocfs2__ull_ull_uint, name, \
+        TP_PROTO(unsigned long long val1,       \
+                 unsigned long long val2, unsigned int val3),   \
+        TP_ARGS(val1, val2, val3))
+
 DECLARE_EVENT_CLASS(ocfs2__ull_uint_uint,
         TP_PROTO(unsigned long long value1,
                  unsigned int value2, unsigned int value3),
@@ -705,6 +729,245 @@ DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_test_suballoc_bit);
 DEFINE_OCFS2_ULL_EVENT(ocfs2_test_inode_bit);
 
 /* End of trace events for fs/ocfs2/suballoc.c. */
+
+/* Trace events for fs/ocfs2/refcounttree.c. */
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_validate_refcount_block);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_purge_refcount_trees);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_create_refcount_tree);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_create_refcount_tree_blkno);
+
+DEFINE_OCFS2_ULL_INT_INT_INT_EVENT(ocfs2_change_refcount_rec);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_expand_inline_ref_root);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_divide_leaf_refcount_block);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_new_leaf_refcount_block);
+
+DECLARE_EVENT_CLASS(ocfs2__refcount_tree_ops,
+        TP_PROTO(unsigned long long blkno, int index,
+                 unsigned long long cpos,
+                 unsigned int clusters, unsigned int refcount),
+        TP_ARGS(blkno, index, cpos, clusters, refcount),
+        TP_STRUCT__entry(
+                __field(unsigned long long, blkno)
+                __field(int, index)
+                __field(unsigned long long, cpos)
+                __field(unsigned int, clusters)
+                __field(unsigned int, refcount)
+        ),
+        TP_fast_assign(
+                __entry->blkno = blkno;
+                __entry->index = index;
+                __entry->cpos = cpos;
+                __entry->clusters = clusters;
+                __entry->refcount = refcount;
+        ),
+        TP_printk("%llu %d %llu %u %u", __entry->blkno, __entry->index,
+                  __entry->cpos, __entry->clusters, __entry->refcount)
+);
+
+#define DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(name)      \
+DEFINE_EVENT(ocfs2__refcount_tree_ops, name,            \
+        TP_PROTO(unsigned long long blkno, int index,   \
+                 unsigned long long cpos,               \
+                 unsigned int count, unsigned int refcount),    \
+        TP_ARGS(blkno, index, cpos, count, refcount))
+
+DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(ocfs2_insert_refcount_rec);
+
+TRACE_EVENT(ocfs2_split_refcount_rec,
+        TP_PROTO(unsigned long long cpos,
+                 unsigned int clusters, unsigned int refcount,
+                 unsigned long long split_cpos,
+                 unsigned int split_clusters, unsigned int split_refcount),
+        TP_ARGS(cpos, clusters, refcount,
+                split_cpos, split_clusters, split_refcount),
+        TP_STRUCT__entry(
+                __field(unsigned long long, cpos)
+                __field(unsigned int, clusters)
+                __field(unsigned int, refcount)
+                __field(unsigned long long, split_cpos)
+                __field(unsigned int, split_clusters)
+                __field(unsigned int, split_refcount)
+        ),
+        TP_fast_assign(
+                __entry->cpos = cpos;
+                __entry->clusters = clusters;
+                __entry->refcount = refcount;
+                __entry->split_cpos = split_cpos;
+                __entry->split_clusters = split_clusters;
+                __entry->split_refcount = split_refcount;
+        ),
+        TP_printk("%llu %u %u %llu %u %u",
+                  __entry->cpos, __entry->clusters, __entry->refcount,
+                  __entry->split_cpos, __entry->split_clusters,
+                  __entry->split_refcount)
+);
+
+DEFINE_OCFS2_REFCOUNT_TREE_OPS_EVENT(ocfs2_split_refcount_rec_insert);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_increase_refcount_begin);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_increase_refcount_change);
+
+DEFINE_OCFS2_ULL_UINT_EVENT(ocfs2_increase_refcount_insert);
+
+DEFINE_OCFS2_ULL_UINT_UINT_EVENT(ocfs2_increase_refcount_split);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_remove_refcount_extent);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_restore_refcount_block);
+
+DEFINE_OCFS2_ULL_ULL_UINT_EVENT(ocfs2_decrease_refcount_rec);
+
+TRACE_EVENT(ocfs2_decrease_refcount,
+        TP_PROTO(unsigned long long owner,
+                 unsigned long long cpos,
+                 unsigned int len, int delete),
+        TP_ARGS(owner, cpos, len, delete),
+        TP_STRUCT__entry(
+                __field(unsigned long long, owner)
+                __field(unsigned long long, cpos)
+                __field(unsigned int, len)
+                __field(int, delete)
+        ),
+        TP_fast_assign(
+                __entry->owner = owner;
+                __entry->cpos = cpos;
+                __entry->len = len;
+                __entry->delete = delete;
+        ),
+        TP_printk("%llu %llu %u %d",
+                  __entry->owner, __entry->cpos, __entry->len, __entry->delete)
+);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_mark_extent_refcounted);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_calc_refcount_meta_credits);
+
+TRACE_EVENT(ocfs2_calc_refcount_meta_credits_iterate,
+        TP_PROTO(int recs_add, unsigned long long cpos,
+                 unsigned int clusters, unsigned long long r_cpos,
+                 unsigned int r_clusters, unsigned int refcount, int index),
+        TP_ARGS(recs_add, cpos, clusters, r_cpos, r_clusters, refcount, index),
+        TP_STRUCT__entry(
+                __field(int, recs_add)
+                __field(unsigned long long, cpos)
+                __field(unsigned int, clusters)
+                __field(unsigned long long, r_cpos)
+                __field(unsigned int, r_clusters)
+                __field(unsigned int, refcount)
+                __field(int, index)
+        ),
+        TP_fast_assign(
+                __entry->recs_add = recs_add;
+                __entry->cpos = cpos;
+                __entry->clusters = clusters;
+                __entry->r_cpos = r_cpos;
+                __entry->r_clusters = r_clusters;
+                __entry->refcount = refcount;
+                __entry->index = index;
+        ),
+        TP_printk("%d %llu %u %llu %u %u %d",
+                  __entry->recs_add, __entry->cpos, __entry->clusters,
+                  __entry->r_cpos, __entry->r_clusters,
+                  __entry->refcount, __entry->index)
+);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_add_refcount_flag);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_prepare_refcount_change_for_del);
+
+DEFINE_OCFS2_INT_INT_EVENT(ocfs2_lock_refcount_allocators);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_duplicate_clusters_by_page);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_duplicate_clusters_by_jbd);
+
+TRACE_EVENT(ocfs2_clear_ext_refcount,
+        TP_PROTO(unsigned long long ino, unsigned int cpos,
+                 unsigned int len, unsigned int p_cluster,
+                 unsigned int ext_flags),
+        TP_ARGS(ino, cpos, len, p_cluster, ext_flags),
+        TP_STRUCT__entry(
+                __field(unsigned long long, ino)
+                __field(unsigned int, cpos)
+                __field(unsigned int, len)
+                __field(unsigned int, p_cluster)
+                __field(unsigned int, ext_flags)
+        ),
+        TP_fast_assign(
+                __entry->ino = ino;
+                __entry->cpos = cpos;
+                __entry->len = len;
+                __entry->p_cluster = p_cluster;
+                __entry->ext_flags = ext_flags;
+        ),
+        TP_printk("%llu %u %u %u %u",
+                  __entry->ino, __entry->cpos, __entry->len,
+                  __entry->p_cluster, __entry->ext_flags)
+);
+
+TRACE_EVENT(ocfs2_replace_clusters,
+        TP_PROTO(unsigned long long ino, unsigned int cpos,
+                 unsigned int old, unsigned int new, unsigned int len,
+                 unsigned int ext_flags),
+        TP_ARGS(ino, cpos, old, new, len, ext_flags),
+        TP_STRUCT__entry(
+                __field(unsigned long long, ino)
+                __field(unsigned int, cpos)
+                __field(unsigned int, old)
+                __field(unsigned int, new)
+                __field(unsigned int, len)
+                __field(unsigned int, ext_flags)
+        ),
+        TP_fast_assign(
+                __entry->ino = ino;
+                __entry->cpos = cpos;
+                __entry->old = old;
+                __entry->new = new;
+                __entry->len = len;
+                __entry->ext_flags = ext_flags;
+        ),
+        TP_printk("%llu %u %u %u %u %u",
+                  __entry->ino, __entry->cpos, __entry->old, __entry->new,
+                  __entry->len, __entry->ext_flags)
+);
+
+DEFINE_OCFS2_ULL_UINT_UINT_UINT_EVENT(ocfs2_make_clusters_writable);
+
+TRACE_EVENT(ocfs2_refcount_cow_hunk,
+        TP_PROTO(unsigned long long ino, unsigned int cpos,
+                 unsigned int write_len, unsigned int max_cpos,
+                 unsigned int cow_start, unsigned int cow_len),
+        TP_ARGS(ino, cpos, write_len, max_cpos, cow_start, cow_len),
+        TP_STRUCT__entry(
+                __field(unsigned long long, ino)
+                __field(unsigned int, cpos)
+                __field(unsigned int, write_len)
+                __field(unsigned int, max_cpos)
+                __field(unsigned int, cow_start)
+                __field(unsigned int, cow_len)
+        ),
+        TP_fast_assign(
+                __entry->ino = ino;
+                __entry->cpos = cpos;
+                __entry->write_len = write_len;
+                __entry->max_cpos = max_cpos;
+                __entry->cow_start = cow_start;
+                __entry->cow_len = cow_len;
+        ),
+        TP_printk("%llu %u %u %u %u %u",
+                  __entry->ino, __entry->cpos, __entry->write_len,
+                  __entry->max_cpos, __entry->cow_start, __entry->cow_len)
+);
+
+/* End of trace events for fs/ocfs2/refcounttree.c. */
 #endif /* _TRACE_OCFS2_H */
 
 /* This part must be outside protection */
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 29623da133cc..93a81f853e66 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -16,7 +16,6 @@
  */
 
 #include <linux/sort.h>
-#define MLOG_MASK_PREFIX ML_REFCOUNT
 #include <cluster/masklog.h>
 #include "ocfs2.h"
 #include "inode.h"
@@ -34,6 +33,7 @@
 #include "aops.h"
 #include "xattr.h"
 #include "namei.h"
+#include "ocfs2_trace.h"
 
 #include <linux/bio.h>
 #include <linux/blkdev.h>
@@ -84,8 +84,7 @@ static int ocfs2_validate_refcount_block(struct super_block *sb,
         struct ocfs2_refcount_block *rb =
                 (struct ocfs2_refcount_block *)bh->b_data;
 
-        mlog(0, "Validating refcount block %llu\n",
-             (unsigned long long)bh->b_blocknr);
+        trace_ocfs2_validate_refcount_block((unsigned long long)bh->b_blocknr);
 
         BUG_ON(!buffer_uptodate(bh));
 
@@ -545,8 +544,8 @@ void ocfs2_purge_refcount_trees(struct ocfs2_super *osb)
         while ((node = rb_last(root)) != NULL) {
                 tree = rb_entry(node, struct ocfs2_refcount_tree, rf_node);
 
-                mlog(0, "Purge tree %llu\n",
-                     (unsigned long long) tree->rf_blkno);
+                trace_ocfs2_purge_refcount_trees(
+                                (unsigned long long) tree->rf_blkno);
 
                 rb_erase(&tree->rf_node, root);
                 ocfs2_free_refcount_tree(tree);
@@ -575,7 +574,8 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
 
         BUG_ON(oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL);
 
-        mlog(0, "create tree for inode %lu\n", inode->i_ino);
+        trace_ocfs2_create_refcount_tree(
+                (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
         ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
         if (ret) {
@@ -646,8 +646,7 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
         di->i_refcount_loc = cpu_to_le64(first_blkno);
         spin_unlock(&oi->ip_lock);
 
-        mlog(0, "created tree for inode %lu, refblock %llu\n",
-             inode->i_ino, (unsigned long long)first_blkno);
+        trace_ocfs2_create_refcount_tree_blkno((unsigned long long)first_blkno);
 
         ocfs2_journal_dirty(handle, di_bh);
 
@@ -1256,8 +1255,9 @@ static int ocfs2_change_refcount_rec(handle_t *handle,
                 goto out;
         }
 
-        mlog(0, "change index %d, old count %u, change %d\n", index,
-             le32_to_cpu(rec->r_refcount), change);
+        trace_ocfs2_change_refcount_rec(
+                (unsigned long long)ocfs2_metadata_cache_owner(ci),
+                index, le32_to_cpu(rec->r_refcount), change);
         le32_add_cpu(&rec->r_refcount, change);
 
         if (!rec->r_refcount) {
@@ -1353,8 +1353,8 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
 
         ocfs2_journal_dirty(handle, ref_root_bh);
 
-        mlog(0, "new leaf block %llu, used %u\n", (unsigned long long)blkno,
-             le16_to_cpu(new_rb->rf_records.rl_used));
+        trace_ocfs2_expand_inline_ref_root((unsigned long long)blkno,
+                le16_to_cpu(new_rb->rf_records.rl_used));
 
         *ref_leaf_bh = new_bh;
         new_bh = NULL;
@@ -1466,9 +1466,9 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh,
                         (struct ocfs2_refcount_block *)new_bh->b_data;
         struct ocfs2_refcount_list *new_rl = &new_rb->rf_records;
 
-        mlog(0, "split old leaf refcount block %llu, count = %u, used = %u\n",
-             (unsigned long long)ref_leaf_bh->b_blocknr,
-             le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used));
+        trace_ocfs2_divide_leaf_refcount_block(
+                (unsigned long long)ref_leaf_bh->b_blocknr,
+                le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used));
 
         /*
          * XXX: Improvement later.
@@ -1601,8 +1601,8 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
 
         ocfs2_init_refcount_extent_tree(&ref_et, ci, ref_root_bh);
 
-        mlog(0, "insert new leaf block %llu at %u\n",
-             (unsigned long long)new_bh->b_blocknr, new_cpos);
+        trace_ocfs2_new_leaf_refcount_block(
+                        (unsigned long long)new_bh->b_blocknr, new_cpos);
 
         /* Insert the new leaf block with the specific offset cpos. */
         ret = ocfs2_insert_extent(handle, &ref_et, new_cpos, new_bh->b_blocknr,
@@ -1794,11 +1794,10 @@ static int ocfs2_insert_refcount_rec(handle_t *handle,
                         (le16_to_cpu(rf_list->rl_used) - index) *
                          sizeof(struct ocfs2_refcount_rec));
 
-        mlog(0, "insert refcount record start %llu, len %u, count %u "
-             "to leaf block %llu at index %d\n",
-             (unsigned long long)le64_to_cpu(rec->r_cpos),
-             le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount),
-             (unsigned long long)ref_leaf_bh->b_blocknr, index);
+        trace_ocfs2_insert_refcount_rec(
+                (unsigned long long)ref_leaf_bh->b_blocknr, index,
+                (unsigned long long)le64_to_cpu(rec->r_cpos),
+                le32_to_cpu(rec->r_clusters), le32_to_cpu(rec->r_refcount));
 
         rf_list->rl_recs[index] = *rec;
 
@@ -1850,10 +1849,12 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
 
         BUG_ON(le32_to_cpu(rb->rf_flags) & OCFS2_REFCOUNT_TREE_FL);
 
-        mlog(0, "original r_pos %llu, cluster %u, split %llu, cluster %u\n",
-             le64_to_cpu(orig_rec->r_cpos), le32_to_cpu(orig_rec->r_clusters),
-             le64_to_cpu(split_rec->r_cpos),
-             le32_to_cpu(split_rec->r_clusters));
+        trace_ocfs2_split_refcount_rec(le64_to_cpu(orig_rec->r_cpos),
+                le32_to_cpu(orig_rec->r_clusters),
+                le32_to_cpu(orig_rec->r_refcount),
+                le64_to_cpu(split_rec->r_cpos),
+                le32_to_cpu(split_rec->r_clusters),
+                le32_to_cpu(split_rec->r_refcount));
 
         /*
          * If we just need to split the header or tail clusters,
@@ -1967,12 +1968,11 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
 
         if (split_rec->r_refcount) {
                 rf_list->rl_recs[index] = *split_rec;
-                mlog(0, "insert refcount record start %llu, len %u, count %u "
-                     "to leaf block %llu at index %d\n",
-                     (unsigned long long)le64_to_cpu(split_rec->r_cpos),
-                     le32_to_cpu(split_rec->r_clusters),
-                     le32_to_cpu(split_rec->r_refcount),
-                     (unsigned long long)ref_leaf_bh->b_blocknr, index);
+                trace_ocfs2_split_refcount_rec_insert(
+                        (unsigned long long)ref_leaf_bh->b_blocknr, index,
+                        (unsigned long long)le64_to_cpu(split_rec->r_cpos),
+                        le32_to_cpu(split_rec->r_clusters),
+                        le32_to_cpu(split_rec->r_refcount));
 
                 if (merge)
                         ocfs2_refcount_rec_merge(rb, index);
@@ -1997,7 +1997,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
         struct ocfs2_refcount_rec rec;
         unsigned int set_len = 0;
 
-        mlog(0, "Tree owner %llu, add refcount start %llu, len %u\n",
+        trace_ocfs2_increase_refcount_begin(
              (unsigned long long)ocfs2_metadata_cache_owner(ci),
              (unsigned long long)cpos, len);
 
@@ -2024,9 +2024,9 @@ static int __ocfs2_increase_refcount(handle_t *handle,
                  */
                 if (rec.r_refcount && le64_to_cpu(rec.r_cpos) == cpos &&
                     set_len <= len) {
-                        mlog(0, "increase refcount rec, start %llu, len %u, "
-                             "count %u\n", (unsigned long long)cpos, set_len,
-                             le32_to_cpu(rec.r_refcount));
+                        trace_ocfs2_increase_refcount_change(
+                                (unsigned long long)cpos, set_len,
+                                le32_to_cpu(rec.r_refcount));
                         ret = ocfs2_change_refcount_rec(handle, ci,
                                                         ref_leaf_bh, index,
                                                         merge, 1);
@@ -2037,7 +2037,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
                 } else if (!rec.r_refcount) {
                         rec.r_refcount = cpu_to_le32(1);
 
-                        mlog(0, "insert refcount rec, start %llu, len %u\n",
+                        trace_ocfs2_increase_refcount_insert(
                              (unsigned long long)le64_to_cpu(rec.r_cpos),
                              set_len);
                         ret = ocfs2_insert_refcount_rec(handle, ci, ref_root_bh,
@@ -2055,8 +2055,7 @@ static int __ocfs2_increase_refcount(handle_t *handle,
                         rec.r_clusters = cpu_to_le32(set_len);
                         le32_add_cpu(&rec.r_refcount, 1);
 
-                        mlog(0, "split refcount rec, start %llu, "
-                             "len %u, count %u\n",
+                        trace_ocfs2_increase_refcount_split(
                              (unsigned long long)le64_to_cpu(rec.r_cpos),
                              set_len, le32_to_cpu(rec.r_refcount));
                         ret = ocfs2_split_refcount_rec(handle, ci,
@@ -2095,6 +2094,11 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
 
         BUG_ON(rb->rf_records.rl_used);
 
+        trace_ocfs2_remove_refcount_extent(
+                (unsigned long long)ocfs2_metadata_cache_owner(ci),
+                (unsigned long long)ref_leaf_bh->b_blocknr,
+                le32_to_cpu(rb->rf_cpos));
+
         ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
         ret = ocfs2_remove_extent(handle, &et, le32_to_cpu(rb->rf_cpos),
                                   1, meta_ac, dealloc);
@@ -2137,7 +2141,7 @@ static int ocfs2_remove_refcount_extent(handle_t *handle,
         if (!rb->rf_list.l_next_free_rec) {
                 BUG_ON(rb->rf_clusters);
 
-                mlog(0, "reset refcount tree root %llu to be a record block.\n",
+                trace_ocfs2_restore_refcount_block(
                      (unsigned long long)ref_root_bh->b_blocknr);
 
                 rb->rf_flags = 0;
@@ -2184,6 +2188,10 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
         BUG_ON(cpos + len >
                le64_to_cpu(rec->r_cpos) + le32_to_cpu(rec->r_clusters));
 
+        trace_ocfs2_decrease_refcount_rec(
+                (unsigned long long)ocfs2_metadata_cache_owner(ci),
+                (unsigned long long)cpos, len);
+
         if (cpos == le64_to_cpu(rec->r_cpos) &&
             len == le32_to_cpu(rec->r_clusters))
                 ret = ocfs2_change_refcount_rec(handle, ci,
@@ -2195,12 +2203,6 @@ static int ocfs2_decrease_refcount_rec(handle_t *handle,
 
                 le32_add_cpu(&split.r_refcount, -1);
 
-                mlog(0, "split refcount rec, start %llu, "
-                     "len %u, count %u, original start %llu, len %u\n",
-                     (unsigned long long)le64_to_cpu(split.r_cpos),
-                     len, le32_to_cpu(split.r_refcount),
-                     (unsigned long long)le64_to_cpu(rec->r_cpos),
-                     le32_to_cpu(rec->r_clusters));
                 ret = ocfs2_split_refcount_rec(handle, ci,
                                                ref_root_bh, ref_leaf_bh,
                                                &split, index, 1,
@@ -2239,10 +2241,9 @@ static int __ocfs2_decrease_refcount(handle_t *handle,
         struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
         struct buffer_head *ref_leaf_bh = NULL;
 
-        mlog(0, "Tree owner %llu, decrease refcount start %llu, "
-             "len %u, delete %u\n",
-             (unsigned long long)ocfs2_metadata_cache_owner(ci),
-             (unsigned long long)cpos, len, delete);
+        trace_ocfs2_decrease_refcount(
+                (unsigned long long)ocfs2_metadata_cache_owner(ci),
+                (unsigned long long)cpos, len, delete);
 
         while (len) {
                 ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
@@ -2352,8 +2353,8 @@ static int ocfs2_mark_extent_refcounted(struct inode *inode,
 {
         int ret;
 
-        mlog(0, "Inode %lu refcount tree cpos %u, len %u, phys cluster %u\n",
-             inode->i_ino, cpos, len, phys);
+        trace_ocfs2_mark_extent_refcounted(OCFS2_I(inode)->ip_blkno,
+                                           cpos, len, phys);
 
         if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
                 ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
@@ -2392,8 +2393,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
         struct buffer_head *ref_leaf_bh = NULL, *prev_bh = NULL;
         u32 len;
 
-        mlog(0, "start_cpos %llu, clusters %u\n",
-             (unsigned long long)start_cpos, clusters);
         while (clusters) {
                 ret = ocfs2_get_refcount_rec(ci, ref_root_bh,
                                              cpos, clusters, &rec,
@@ -2427,12 +2426,11 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 
                 rb = (struct ocfs2_refcount_block *)ref_leaf_bh->b_data;
 
-                mlog(0, "recs_add %d,cpos %llu, clusters %u, rec->r_cpos %llu,"
-                     "rec->r_clusters %u, rec->r_refcount %u, index %d\n",
-                     recs_add, (unsigned long long)cpos, clusters,
-                     (unsigned long long)le64_to_cpu(rec.r_cpos),
-                     le32_to_cpu(rec.r_clusters),
-                     le32_to_cpu(rec.r_refcount), index);
+                trace_ocfs2_calc_refcount_meta_credits_iterate(
+                                recs_add, (unsigned long long)cpos, clusters,
+                                (unsigned long long)le64_to_cpu(rec.r_cpos),
+                                le32_to_cpu(rec.r_clusters),
+                                le32_to_cpu(rec.r_refcount), index);
 
                 len = min((u64)cpos + clusters, le64_to_cpu(rec.r_cpos) +
                           le32_to_cpu(rec.r_clusters)) - cpos;
@@ -2488,7 +2486,6 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
         if (!ref_blocks)
                 goto out;
 
-        mlog(0, "we need ref_blocks %d\n", ref_blocks);
         *meta_add += ref_blocks;
         *credits += ref_blocks;
 
@@ -2514,6 +2511,10 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
         }
 
 out:
+
+        trace_ocfs2_calc_refcount_meta_credits(
+                (unsigned long long)start_cpos, clusters,
+                *meta_add, *credits);
         brelse(ref_leaf_bh);
         brelse(prev_bh);
         return ret;
@@ -2578,8 +2579,7 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
                 goto out;
         }
 
-        mlog(0, "reserve new metadata %d blocks, credits = %d\n",
-             *ref_blocks, *credits);
+        trace_ocfs2_prepare_refcount_change_for_del(*ref_blocks, *credits);
 
 out:
         brelse(ref_root_bh);
@@ -2886,8 +2886,7 @@ static int ocfs2_lock_refcount_allocators(struct super_block *sb,
                 goto out;
         }
 
-        mlog(0, "reserve new metadata %d, clusters %u, credits = %d\n",
-             meta_add, num_clusters, *credits);
+        trace_ocfs2_lock_refcount_allocators(meta_add, *credits);
         ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(sb), meta_add,
                                                 meta_ac);
         if (ret) {
@@ -2937,8 +2936,8 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
         loff_t offset, end, map_end;
         struct address_space *mapping = context->inode->i_mapping;
 
-        mlog(0, "old_cluster %u, new %u, len %u at offset %u\n", old_cluster,
-             new_cluster, new_len, cpos);
+        trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+                                               new_cluster, new_len);
 
         readahead_pages =
                 (ocfs2_cow_contig_clusters(sb) <<
@@ -3031,8 +3030,8 @@ static int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
         struct buffer_head *old_bh = NULL;
         struct buffer_head *new_bh = NULL;
 
-        mlog(0, "old_cluster %u, new %u, len %u\n", old_cluster,
-             new_cluster, new_len);
+        trace_ocfs2_duplicate_clusters_by_page(cpos, old_cluster,
+                                               new_cluster, new_len);
 
         for (i = 0; i < blocks; i++, old_block++, new_block++) {
                 new_bh = sb_getblk(osb->sb, new_block);
@@ -3085,8 +3084,8 @@ static int ocfs2_clear_ext_refcount(handle_t *handle,
         struct super_block *sb = ocfs2_metadata_cache_get_super(et->et_ci);
         u64 ino = ocfs2_metadata_cache_owner(et->et_ci);
 
-        mlog(0, "inode %llu cpos %u, len %u, p_cluster %u, ext_flags %u\n",
-             (unsigned long long)ino, cpos, len, p_cluster, ext_flags);
+        trace_ocfs2_clear_ext_refcount((unsigned long long)ino,
+                                       cpos, len, p_cluster, ext_flags);
 
         memset(&replace_rec, 0, sizeof(replace_rec));
         replace_rec.e_cpos = cpu_to_le32(cpos);
@@ -3141,8 +3140,8 @@ static int ocfs2_replace_clusters(handle_t *handle,
         struct ocfs2_caching_info *ci = context->data_et.et_ci;
         u64 ino = ocfs2_metadata_cache_owner(ci);
 
-        mlog(0, "inode %llu, cpos %u, old %u, new %u, len %u, ext_flags %u\n",
-             (unsigned long long)ino, cpos, old, new, len, ext_flags);
+        trace_ocfs2_replace_clusters((unsigned long long)ino,
+                                     cpos, old, new, len, ext_flags);
 
         /*If the old clusters is unwritten, no need to duplicate. */
         if (!(ext_flags & OCFS2_EXT_UNWRITTEN)) {
@@ -3236,8 +3235,8 @@ static int ocfs2_make_clusters_writable(struct super_block *sb,
         struct ocfs2_caching_info *ref_ci = &context->ref_tree->rf_ci;
         struct ocfs2_refcount_rec rec;
 
-        mlog(0, "cpos %u, p_cluster %u, num_clusters %u, e_flags %u\n",
-             cpos, p_cluster, num_clusters, e_flags);
+        trace_ocfs2_make_clusters_writable(cpos, p_cluster,
+                                           num_clusters, e_flags);
 
         ret = ocfs2_lock_refcount_allocators(sb, p_cluster, num_clusters,
                                              &context->data_et,
@@ -3475,9 +3474,9 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode,
                 goto out;
         }
 
-        mlog(0, "CoW inode %lu, cpos %u, write_len %u, cow_start %u, "
-             "cow_len %u\n", inode->i_ino,
-             cpos, write_len, cow_start, cow_len);
+        trace_ocfs2_refcount_cow_hunk(OCFS2_I(inode)->ip_blkno,
+                                      cpos, write_len, max_cpos,
+                                      cow_start, cow_len);
 
         BUG_ON(cow_len == 0);
 
@@ -3756,8 +3755,7 @@ int ocfs2_add_refcount_flag(struct inode *inode,
                 goto out;
         }
 
-        mlog(0, "reserve new metadata %d, credits = %d\n",
-             ref_blocks, credits);
+        trace_ocfs2_add_refcount_flag(ref_blocks, credits);
 
         if (ref_blocks) {
                 ret = ocfs2_reserve_new_metadata_blocks(OCFS2_SB(inode->i_sb),