cifs: Add information about noserverino

Commit Message

Bernhard Walle Dec. 5, 2010, 5:07 p.m. UTC

None

Patch

diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index d5e591f..d979826 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -773,6 +773,7 @@  int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 	char *tmp_buf = NULL;
 	char *end_of_smb;
 	unsigned int max_len;
+	int err;
 
 	xid = GetXid();
 
@@ -783,17 +784,31 @@  int cifs_readdir(struct file *file, void *direntry, filldir_t filldir)
 
 	switch ((int) file->f_pos) {
 	case 0:
-		if (filldir(direntry, ".", 1, file->f_pos,
-		     file->f_path.dentry->d_inode->i_ino, DT_DIR) < 0) {
+		err = filldir(direntry, ".", 1, file->f_pos,
+		     file->f_path.dentry->d_inode->i_ino, DT_DIR);
+		if (err < 0) {
 			cERROR(1, "Filldir for current dir failed");
+			if (err == -EOVERFLOW) {
+				cERROR(1, "Server inodes are too large for 32 "
+						"bit userspace. You might "
+						"consider using 'noserverino' "
+						"mount option for this mount.");
+			}
 			rc = -ENOMEM;
 			break;
 		}
 		file->f_pos++;
 	case 1:
-		if (filldir(direntry, "..", 2, file->f_pos,
-		     file->f_path.dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) {
+		err = filldir(direntry, "..", 2, file->f_pos,
+		     file->f_path.dentry->d_parent->d_inode->i_ino, DT_DIR);
+		if (err < 0) {
 			cERROR(1, "Filldir for parent dir failed");
+			if (err == -EOVERFLOW) {
+				cERROR(1, "Server inodes are too large for 32 "
+						"bit userspace. You might "
+						"consider using 'noserverino' "
+						"mount option for this mount.");
+			}
 			rc = -ENOMEM;
 			break;
 		}