[CIFS] Add stats for findfirst, findnext, findclose

Signed-off-by: Steve French (sfrench@us.ibm.com)

3 files changed, 25 insertions, 7 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 81babab265e1..4ed9c13fff55 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -219,6 +219,9 @@ struct cifsTconInfo {
         atomic_t num_rmdirs;
         atomic_t num_renames;
         atomic_t num_t2renames;
+        atomic_t num_ffirst;
+        atomic_t num_fnext;
+        atomic_t num_fclose;
         __u64    bytes_read;
         __u64    bytes_written;
         spinlock_t stat_lock;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 3c628bf667a5..b31158a2643d 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -2396,7 +2396,9 @@ findUniqueRetry:
         if (rc) {
                 cFYI(1, ("Send error in FindFileDirInfo = %d", rc));
         } else {                /* decode response */
-
+#ifdef CONFIG_CIFS_STATS
+                atomic_inc(&tcon->num_ffirst);
+#endif
                 /* BB fill in */
         }
 
@@ -2509,6 +2511,9 @@ findFirstRetry:
                 if (rc == -EAGAIN)
                         goto findFirstRetry;
         } else { /* decode response */
+#ifdef CONFIG_CIFS_STATS
+                atomic_inc(&tcon->num_ffirst);
+#endif
                 /* BB remember to free buffer if error BB */
                 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
                 if(rc == 0) {
@@ -2622,6 +2627,9 @@ int CIFSFindNext(const int xid, struct cifsTconInfo *tcon,
                 } else
                         cFYI(1, ("FindNext returned = %d", rc));
         } else {                /* decode response */
+#ifdef CONFIG_CIFS_STATS
+                atomic_inc(&tcon->num_fnext);
+#endif
                 rc = validate_t2((struct smb_t2_rsp *)pSMBr);
                 
                 if(rc == 0) {
@@ -2691,6 +2699,9 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle
         if (rc) {
                 cERROR(1, ("Send error in FindClose = %d", rc));
         }
+#ifdef CONFIG_CIFS_STATS
+        atomic_inc(&tcon->num_fclose);
+#endif
         cifs_small_buf_release(pSMB);
 
         /* Since session is dead, search handle closed on server already */
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 22557716f9af..487221eeddb7 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -190,8 +190,9 @@ static void fill_in_inode(struct inode *tmp_inode,
                 tmp_inode->i_data.a_ops = &cifs_addr_ops;
 
                 if(isNewInode)
-                        return; /* No sense invalidating pages for new inode since we
-                                           have not started caching readahead file data yet */
+                        return; /* No sense invalidating pages for new inode
+                                   since have not started caching readahead file
+                                   data yet */
 
                 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
                         (local_size == tmp_inode->i_size)) {
@@ -536,7 +537,8 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
         while((index_to_find >= cifsFile->srch_inf.index_of_last_entry) && 
               (rc == 0) && (cifsFile->srch_inf.endOfSearch == FALSE)){
                 cFYI(1,("calling findnext2"));
-                rc = CIFSFindNext(xid,pTcon,cifsFile->netfid, &cifsFile->srch_inf);
+                rc = CIFSFindNext(xid,pTcon,cifsFile->netfid, 
+                                  &cifsFile->srch_inf);
                 if(rc)
                         return -ENOENT;
         }
@@ -555,7 +557,7 @@ static int find_cifs_entry(const int xid, struct cifsTconInfo *pTcon,
                 cFYI(1,("found entry - pos_in_buf %d",pos_in_buf)); 
                 current_entry = cifsFile->srch_inf.srch_entries_start;
                 for(i=0;(i<(pos_in_buf)) && (current_entry != NULL);i++) {
-                        /* go entry to next entry figuring out which we need to start with */
+                        /* go entry by entry figuring out which is first */
                         /* if( . or ..)
                                 skip */
                         rc = cifs_entry_is_dot(current_entry,cifsFile);
@@ -721,7 +723,8 @@ static int cifs_filldir(char *pfindEntry, struct file *file,
                               (FILE_DIRECTORY_INFO *)pfindEntry,&obj_type, rc);
         }
         
-        rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,tmp_inode->i_ino,obj_type);
+        rc = filldir(direntry,qstring.name,qstring.len,file->f_pos,
+                     tmp_inode->i_ino,obj_type);
         if(rc) {
                 cFYI(1,("filldir rc = %d",rc));
         }
@@ -906,7 +909,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
                                 cifs_save_resume_key(current_entry,cifsFile);
                                 break;
                         } else 
-                                current_entry = nxt_dir_entry(current_entry,end_of_smb);
+                                current_entry = nxt_dir_entry(current_entry,
+                                                              end_of_smb);
                 }
                 kfree(tmp_buf);
                 break;