4 files changed, 121 insertions, 24 deletions

diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index 0668eb6e05d6..91df3e2571a0 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -97,7 +97,6 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
         define_mask(BH_IO),
         define_mask(UPTODATE),
         define_mask(VOTE),
-        define_mask(DCACHE),
         define_mask(CONN),
         define_mask(QUORUM),
         define_mask(EXPORT),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index a815b55d87a7..c64b0aa59e9d 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -99,7 +99,6 @@
 #define ML_BH_IO        0x0000000000100000ULL /* ocfs2 buffer I/O */
 #define ML_UPTODATE     0x0000000000200000ULL /* ocfs2 caching sequence #'s */
 #define ML_VOTE         0x0000000001000000ULL /* ocfs2 node messaging  */
-#define ML_DCACHE       0x0000000002000000ULL /* ocfs2 dcache operations */
 #define ML_CONN         0x0000000004000000ULL /* net connection management */
 #define ML_QUORUM       0x0000000008000000ULL /* net connection quorum */
 #define ML_EXPORT       0x0000000010000000ULL /* ocfs2 export operations */
diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index c26551c25e8e..e5ba34818332 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -28,7 +28,6 @@
 #include <linux/slab.h>
 #include <linux/namei.h>
 
-#define MLOG_MASK_PREFIX ML_DCACHE
 #include <cluster/masklog.h>
 
 #include "ocfs2.h"
@@ -39,6 +38,7 @@
 #include "file.h"
 #include "inode.h"
 #include "super.h"
+#include "ocfs2_trace.h"
 
 void ocfs2_dentry_attach_gen(struct dentry *dentry)
 {
@@ -62,8 +62,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
         inode = dentry->d_inode;
         osb = OCFS2_SB(dentry->d_sb);
 
-        mlog(0, "(0x%p, '%.*s')\n", dentry,
-             dentry->d_name.len, dentry->d_name.name);
+        trace_ocfs2_dentry_revalidate(dentry, dentry->d_name.len,
+                                      dentry->d_name.name);
 
         /* For a negative dentry -
          * check the generation number of the parent and compare with the
@@ -73,9 +73,10 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
                 unsigned long gen = (unsigned long) dentry->d_fsdata;
                 unsigned long pgen =
                         OCFS2_I(dentry->d_parent->d_inode)->ip_dir_lock_gen;
-                mlog(0, "negative dentry: %.*s parent gen: %lu "
-                        "dentry gen: %lu\n",
-                        dentry->d_name.len, dentry->d_name.name, pgen, gen);
+
+                trace_ocfs2_dentry_revalidate_negative(dentry->d_name.len,
+                                                       dentry->d_name.name,
+                                                       pgen, gen);
                 if (gen != pgen)
                         goto bail;
                 goto valid;
@@ -90,8 +91,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
         /* did we or someone else delete this inode? */
         if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) {
                 spin_unlock(&OCFS2_I(inode)->ip_lock);
-                mlog(0, "inode (%llu) deleted, returning false\n",
-                     (unsigned long long)OCFS2_I(inode)->ip_blkno);
+                trace_ocfs2_dentry_revalidate_delete(
+                                (unsigned long long)OCFS2_I(inode)->ip_blkno);
                 goto bail;
         }
         spin_unlock(&OCFS2_I(inode)->ip_lock);
@@ -101,10 +102,9 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
          * inode nlink hits zero, it never goes back.
          */
         if (inode->i_nlink == 0) {
-                mlog(0, "Inode %llu orphaned, returning false "
-                     "dir = %d\n",
-                     (unsigned long long)OCFS2_I(inode)->ip_blkno,
-                     S_ISDIR(inode->i_mode));
+                trace_ocfs2_dentry_revalidate_orphaned(
+                        (unsigned long long)OCFS2_I(inode)->ip_blkno,
+                        S_ISDIR(inode->i_mode));
                 goto bail;
         }
 
@@ -113,9 +113,8 @@ static int ocfs2_dentry_revalidate(struct dentry *dentry,
          * redo it.
          */
         if (!dentry->d_fsdata) {
-                mlog(0, "Inode %llu doesn't have dentry lock, "
-                     "returning false\n",
-                     (unsigned long long)OCFS2_I(inode)->ip_blkno);
+                trace_ocfs2_dentry_revalidate_nofsdata(
+                                (unsigned long long)OCFS2_I(inode)->ip_blkno);
                 goto bail;
         }
 
@@ -123,7 +122,7 @@ valid:
         ret = 1;
 
 bail:
-        mlog(0, "ret = %d\n", ret);
+        trace_ocfs2_dentry_revalidate_ret(ret);
         return ret;
 }
 
@@ -180,8 +179,8 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
 
                 spin_lock(&dentry->d_lock);
                 if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
-                        mlog(0, "dentry found: %.*s\n",
-                             dentry->d_name.len, dentry->d_name.name);
+                        trace_ocfs2_find_local_alias(dentry->d_name.len,
+                                                     dentry->d_name.name);
 
                         dget_dlock(dentry);
                         spin_unlock(&dentry->d_lock);
@@ -239,9 +238,8 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry,
         struct dentry *alias;
         struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
 
-        mlog(0, "Attach \"%.*s\", parent %llu, fsdata: %p\n",
-             dentry->d_name.len, dentry->d_name.name,
-             (unsigned long long)parent_blkno, dl);
+        trace_ocfs2_dentry_attach_lock(dentry->d_name.len, dentry->d_name.name,
+                                       (unsigned long long)parent_blkno, dl);
 
         /*
          * Negative dentry. We ignore these for now.
@@ -291,7 +289,9 @@ int ocfs2_dentry_attach_lock(struct dentry *dentry,
                                 (unsigned long long)parent_blkno,
                                 (unsigned long long)dl->dl_parent_blkno);
 
-                mlog(0, "Found: %s\n", dl->dl_lockres.l_name);
+                trace_ocfs2_dentry_attach_lock_found(dl->dl_lockres.l_name,
+                                (unsigned long long)parent_blkno,
+                                (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
                 goto out_attach;
         }
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index a98e52ae06ee..6ef3a928023b 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -2364,6 +2364,105 @@ TRACE_EVENT(ocfs2_orphan_del,
 );
 
 /* End of trace events for fs/ocfs2/namei.c. */
+
+/* Trace events for fs/ocfs2/dcache.c. */
+
+TRACE_EVENT(ocfs2_dentry_revalidate,
+        TP_PROTO(void *dentry, int len, const char *name),
+        TP_ARGS(dentry, len, name),
+        TP_STRUCT__entry(
+                __field(void *, dentry)
+                __field(int, len)
+                __string(name, name)
+        ),
+        TP_fast_assign(
+                __entry->dentry = dentry;
+                __entry->len = len;
+                __assign_str(name, name);
+        ),
+        TP_printk("%p %.*s", __entry->dentry, __entry->len, __get_str(name))
+);
+
+TRACE_EVENT(ocfs2_dentry_revalidate_negative,
+        TP_PROTO(int len, const char *name, unsigned long pgen,
+                 unsigned long gen),
+        TP_ARGS(len, name, pgen, gen),
+        TP_STRUCT__entry(
+                __field(int, len)
+                __string(name, name)
+                __field(unsigned long, pgen)
+                __field(unsigned long, gen)
+        ),
+        TP_fast_assign(
+                __entry->len = len;
+                __assign_str(name, name);
+                __entry->pgen = pgen;
+                __entry->gen = gen;
+        ),
+        TP_printk("%.*s %lu %lu", __entry->len, __get_str(name),
+                  __entry->pgen, __entry->gen)
+);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_dentry_revalidate_delete);
+
+DEFINE_OCFS2_ULL_INT_EVENT(ocfs2_dentry_revalidate_orphaned);
+
+DEFINE_OCFS2_ULL_EVENT(ocfs2_dentry_revalidate_nofsdata);
+
+DEFINE_OCFS2_INT_EVENT(ocfs2_dentry_revalidate_ret);
+
+TRACE_EVENT(ocfs2_find_local_alias,
+        TP_PROTO(int len, const char *name),
+        TP_ARGS(len, name),
+        TP_STRUCT__entry(
+                __field(int, len)
+                __string(name, name)
+        ),
+        TP_fast_assign(
+                __entry->len = len;
+                __assign_str(name, name);
+        ),
+        TP_printk("%.*s", __entry->len, __get_str(name))
+);
+
+TRACE_EVENT(ocfs2_dentry_attach_lock,
+        TP_PROTO(int len, const char *name,
+                 unsigned long long parent, void *fsdata),
+        TP_ARGS(len, name, parent, fsdata),
+        TP_STRUCT__entry(
+                __field(int, len)
+                __string(name, name)
+                __field(unsigned long long, parent)
+                __field(void *, fsdata)
+        ),
+        TP_fast_assign(
+                __entry->len = len;
+                __assign_str(name, name);
+                __entry->parent = parent;
+                __entry->fsdata = fsdata;
+        ),
+        TP_printk("%.*s %llu %p", __entry->len, __get_str(name),
+                  __entry->parent, __entry->fsdata)
+);
+
+TRACE_EVENT(ocfs2_dentry_attach_lock_found,
+        TP_PROTO(const char *name, unsigned long long parent,
+                 unsigned long long ino),
+        TP_ARGS(name, parent, ino),
+        TP_STRUCT__entry(
+                __string(name, name)
+                __field(unsigned long long, parent)
+                __field(unsigned long long, ino)
+        ),
+        TP_fast_assign(
+                __assign_str(name, name);
+                __entry->parent = parent;
+                __entry->ino = ino;
+        ),
+        TP_printk("%s %llu %llu", __get_str(name), __entry->parent, __entry->ino)
+);
+
+/* End of trace events for fs/ocfs2/dcache.c. */
 #endif /* _TRACE_OCFS2_H */
 
 /* This part must be outside protection */