[CIFS] cifs: Rename cERROR and cFYI to cifs_dbg

It's not obvious from reading the macro names that these macros
are for debugging.  Convert the names to a single more typical
kernel style cifs_dbg macro.

	cERROR(1, ...)   -> cifs_dbg(VFS, ...)
	cFYI(1, ...)     -> cifs_dbg(FYI, ...)
	cFYI(DBG2, ...)  -> cifs_dbg(NOISY, ...)

Move the terminating format newline from the macro to the call site.

Add CONFIG_CIFS_DEBUG function cifs_vfs_err to emit the
"CIFS VFS: " prefix for VFS messages.

Size is reduced ~ 1% when CONFIG_CIFS_DEBUG is set (default y)

$ size fs/cifs/cifs.ko*
   text    data     bss     dec     hex filename
 265245	   2525	    132	 267902	  4167e	fs/cifs/cifs.ko.new
 268359    2525     132  271016   422a8 fs/cifs/cifs.ko.old

Other miscellaneous changes around these conversions:

o Miscellaneous typo fixes
o Add terminating \n's to almost all formats and remove them
  from the macros to be more kernel style like.  A few formats
  previously had defective \n's
o Remove unnecessary OOM messages as kmalloc() calls dump_stack
o Coalesce formats to make grep easier,
  added missing spaces when coalescing formats
o Use %s, __func__ instead of embedded function name
o Removed unnecessary "cifs: " prefixes
o Convert kzalloc with multiply to kcalloc
o Remove unused cifswarn macro

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 38 insertions, 39 deletions

diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index df40cc5fd13a..770d5a9781c1 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -48,15 +48,15 @@ static void dump_cifs_file_struct(struct file *file, char *label)
 	if (file) {
 		cf = file->private_data;
 		if (cf == NULL) {
-			cFYI(1, "empty cifs private file data");
+			cifs_dbg(FYI, "empty cifs private file data\n");
 			return;
 		}
 		if (cf->invalidHandle)
-			cFYI(1, "invalid handle");
+			cifs_dbg(FYI, "invalid handle\n");
 		if (cf->srch_inf.endOfSearch)
-			cFYI(1, "end of search");
+			cifs_dbg(FYI, "end of search\n");
 		if (cf->srch_inf.emptyDir)
-			cFYI(1, "empty dir");
+			cifs_dbg(FYI, "empty dir\n");
 	}
 }
 #else
@@ -80,7 +80,7 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name,
 	struct super_block *sb = parent->d_inode->i_sb;
 	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
 
-	cFYI(1, "%s: for %s", __func__, name->name);
+	cifs_dbg(FYI, "%s: for %s\n", __func__, name->name);
 
 	dentry = d_hash_and_lookup(parent, name);
 	if (unlikely(IS_ERR(dentry)))
@@ -233,7 +233,7 @@ int get_symlink_reparse_path(char *full_path, struct cifs_sb_info *cifs_sb,
 				fid,
 				cifs_sb->local_nls);
 		if (CIFSSMBClose(xid, ptcon, fid)) {
-			cFYI(1, "Error closing temporary reparsepoint open");
+			cifs_dbg(FYI, "Error closing temporary reparsepoint open\n");
 		}
 	}
 }
@@ -285,7 +285,7 @@ initiate_cifs_search(const unsigned int xid, struct file *file)
 		goto error_exit;
 	}
 
-	cFYI(1, "Full path: %s start at: %lld", full_path, file->f_pos);
+	cifs_dbg(FYI, "Full path: %s start at: %lld\n", full_path, file->f_pos);
 
 ffirst_retry:
 	/* test for Unix extensions */
@@ -336,7 +336,7 @@ static int cifs_unicode_bytelen(const char *str)
 		if (ustr[len] == 0)
 			return len << 1;
 	}
-	cFYI(1, "Unicode string longer than PATH_MAX found");
+	cifs_dbg(FYI, "Unicode string longer than PATH_MAX found\n");
 	return len << 1;
 }
 
@@ -353,18 +353,18 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
 				pfData->FileNameLength;
 	} else
 		new_entry = old_entry + le32_to_cpu(pDirInfo->NextEntryOffset);
-	cFYI(1, "new entry %p old entry %p", new_entry, old_entry);
+	cifs_dbg(FYI, "new entry %p old entry %p\n", new_entry, old_entry);
 	/* validate that new_entry is not past end of SMB */
 	if (new_entry >= end_of_smb) {
-		cERROR(1, "search entry %p began after end of SMB %p old entry %p",
-			new_entry, end_of_smb, old_entry);
+		cifs_dbg(VFS, "search entry %p began after end of SMB %p old entry %p\n",
+			 new_entry, end_of_smb, old_entry);
 		return NULL;
 	} else if (((level == SMB_FIND_FILE_INFO_STANDARD) &&
 		    (new_entry + sizeof(FIND_FILE_STANDARD_INFO) > end_of_smb))
 		  || ((level != SMB_FIND_FILE_INFO_STANDARD) &&
 		   (new_entry + sizeof(FILE_DIRECTORY_INFO) > end_of_smb)))  {
-		cERROR(1, "search entry %p extends after end of SMB %p",
-			new_entry, end_of_smb);
+		cifs_dbg(VFS, "search entry %p extends after end of SMB %p\n",
+			 new_entry, end_of_smb);
 		return NULL;
 	} else
 		return new_entry;
@@ -457,7 +457,7 @@ static int cifs_fill_dirent(struct cifs_dirent *de, const void *info,
 		cifs_fill_dirent_std(de, info);
 		break;
 	default:
-		cFYI(1, "Unknown findfirst level %d", level);
+		cifs_dbg(FYI, "Unknown findfirst level %d\n", level);
 		return -EINVAL;
 	}
 
@@ -572,7 +572,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 	if (((index_to_find < cfile->srch_inf.index_of_last_entry) &&
 	     is_dir_changed(file)) || (index_to_find < first_entry_in_buffer)) {
 		/* close and restart search */
-		cFYI(1, "search backing up - close and restart search");
+		cifs_dbg(FYI, "search backing up - close and restart search\n");
 		spin_lock(&cifs_file_list_lock);
 		if (!cfile->srch_inf.endOfSearch && !cfile->invalidHandle) {
 			cfile->invalidHandle = true;
@@ -582,7 +582,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 		} else
 			spin_unlock(&cifs_file_list_lock);
 		if (cfile->srch_inf.ntwrk_buf_start) {
-			cFYI(1, "freeing SMB ff cache buf on search rewind");
+			cifs_dbg(FYI, "freeing SMB ff cache buf on search rewind\n");
 			if (cfile->srch_inf.smallBuf)
 				cifs_small_buf_release(cfile->srch_inf.
 						ntwrk_buf_start);
@@ -593,7 +593,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 		}
 		rc = initiate_cifs_search(xid, file);
 		if (rc) {
-			cFYI(1, "error %d reinitiating a search on rewind",
+			cifs_dbg(FYI, "error %d reinitiating a search on rewind\n",
 				 rc);
 			return rc;
 		}
@@ -608,7 +608,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 
 	while ((index_to_find >= cfile->srch_inf.index_of_last_entry) &&
 	       (rc == 0) && !cfile->srch_inf.endOfSearch) {
-		cFYI(1, "calling findnext2");
+		cifs_dbg(FYI, "calling findnext2\n");
 		rc = server->ops->query_dir_next(xid, tcon, &cfile->fid,
 						 search_flags,
 						 &cfile->srch_inf);
@@ -631,7 +631,7 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 		first_entry_in_buffer = cfile->srch_inf.index_of_last_entry
 					- cfile->srch_inf.entries_in_buffer;
 		pos_in_buf = index_to_find - first_entry_in_buffer;
-		cFYI(1, "found entry - pos_in_buf %d", pos_in_buf);
+		cifs_dbg(FYI, "found entry - pos_in_buf %d\n", pos_in_buf);
 
 		for (i = 0; (i < (pos_in_buf)) && (cur_ent != NULL); i++) {
 			/* go entry by entry figuring out which is first */
@@ -640,19 +640,18 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon,
 		}
 		if ((cur_ent == NULL) && (i < pos_in_buf)) {
 			/* BB fixme - check if we should flag this error */
-			cERROR(1, "reached end of buf searching for pos in buf"
-				  " %d index to find %lld rc %d", pos_in_buf,
-				  index_to_find, rc);
+			cifs_dbg(VFS, "reached end of buf searching for pos in buf %d index to find %lld rc %d\n",
+				 pos_in_buf, index_to_find, rc);
 		}
 		rc = 0;
 		*current_entry = cur_ent;
 	} else {
-		cFYI(1, "index not in buffer - could not findnext into it");
+		cifs_dbg(FYI, "index not in buffer - could not findnext into it\n");
 		return 0;
 	}
 
 	if (pos_in_buf >= cfile->srch_inf.entries_in_buffer) {
-		cFYI(1, "can not return entries pos_in_buf beyond last");
+		cifs_dbg(FYI, "can not return entries pos_in_buf beyond last\n");
 		*num_to_ret = 0;
 	} else
 		*num_to_ret = cfile->srch_inf.entries_in_buffer - pos_in_buf;
@@ -678,8 +677,8 @@ static int cifs_filldir(char *find_entry, struct file *file, filldir_t filldir,
 		return rc;
 
 	if (de.namelen > max_len) {
-		cERROR(1, "bad search response length %zd past smb end",
-			  de.namelen);
+		cifs_dbg(VFS, "bad search response length %zd past smb end\n",
+			 de.namelen);
 		return -EINVAL;
 	}
 
@@ -768,7 +767,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 	 */
 	if (file->private_data == NULL) {
 		rc = initiate_cifs_search(xid, file);
-		cFYI(1, "initiate cifs search rc %d", rc);
+		cifs_dbg(FYI, "initiate cifs search rc %d\n", rc);
 		if (rc)
 			goto rddir2_exit;
 	}
@@ -777,7 +776,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 	case 0:
 		if (filldir(direntry, ".", 1, file->f_pos,
 		     file_inode(file)->i_ino, DT_DIR) < 0) {
-			cERROR(1, "Filldir for current dir failed");
+			cifs_dbg(VFS, "Filldir for current dir failed\n");
 			rc = -ENOMEM;
 			break;
 		}
@@ -785,7 +784,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 	case 1:
 		if (filldir(direntry, "..", 2, file->f_pos,
 		     parent_ino(file->f_path.dentry), DT_DIR) < 0) {
-			cERROR(1, "Filldir for parent dir failed");
+			cifs_dbg(VFS, "Filldir for parent dir failed\n");
 			rc = -ENOMEM;
 			break;
 		}
@@ -804,7 +803,7 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 		cifsFile = file->private_data;
 		if (cifsFile->srch_inf.endOfSearch) {
 			if (cifsFile->srch_inf.emptyDir) {
-				cFYI(1, "End of search, empty dir");
+				cifs_dbg(FYI, "End of search, empty dir\n");
 				rc = 0;
 				break;
 			}
@@ -817,16 +816,16 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 		rc = find_cifs_entry(xid, tcon, file, &current_entry,
 				     &num_to_fill);
 		if (rc) {
-			cFYI(1, "fce error %d", rc);
+			cifs_dbg(FYI, "fce error %d\n", rc);
 			goto rddir2_exit;
 		} else if (current_entry != NULL) {
-			cFYI(1, "entry %lld found", file->f_pos);
+			cifs_dbg(FYI, "entry %lld found\n", file->f_pos);
 		} else {
-			cFYI(1, "could not find entry");
+			cifs_dbg(FYI, "could not find entry\n");
 			goto rddir2_exit;
 		}
-		cFYI(1, "loop through %d times filling dir for net buf %p",
-			num_to_fill, cifsFile->srch_inf.ntwrk_buf_start);
+		cifs_dbg(FYI, "loop through %d times filling dir for net buf %p\n",
+			 num_to_fill, cifsFile->srch_inf.ntwrk_buf_start);
 		max_len = tcon->ses->server->ops->calc_smb_size(
 				cifsFile->srch_inf.ntwrk_buf_start);
 		end_of_smb = cifsFile->srch_inf.ntwrk_buf_start + max_len;
@@ -840,8 +839,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 		for (i = 0; (i < num_to_fill) && (rc == 0); i++) {
 			if (current_entry == NULL) {
 				/* evaluate whether this case is an error */
-				cERROR(1, "past SMB end,  num to fill %d i %d",
-					  num_to_fill, i);
+				cifs_dbg(VFS, "past SMB end,  num to fill %d i %d\n",
+					 num_to_fill, i);
 				break;
 			}
 			/*
@@ -858,8 +857,8 @@ int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 			file->f_pos++;
 			if (file->f_pos ==
 				cifsFile->srch_inf.index_of_last_entry) {
-				cFYI(1, "last entry in buf at pos %lld %s",
-					file->f_pos, tmp_buf);
+				cifs_dbg(FYI, "last entry in buf at pos %lld %s\n",
+					 file->f_pos, tmp_buf);
 				cifs_save_resume_key(current_entry, cifsFile);
 				break;
 			} else