[CIFS] Allow disabling CIFS Unix Extensions as mount option

Previously the only way to do this was to umount all mounts to that server,
turn off a proc setting (/proc/fs/cifs/LinuxExtensionsEnabled).

Fixes Samba bugzilla bug number: 4582 (and also 2008)

Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0a39491280d..e13592afca9 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -138,7 +138,7 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
         }
 
 client_can_cache:
-        if (pTcon->ses->capabilities & CAP_UNIX)
+        if (pTcon->unix_ext)
                 rc = cifs_get_inode_info_unix(&file->f_path.dentry->d_inode,
                         full_path, inode->i_sb, xid);
         else
@@ -303,7 +303,7 @@ int cifs_open(struct inode *inode, struct file *file)
         if (oplock & CIFS_CREATE_ACTION) {
                 /* time to set mode which we can not set earlier due to
                    problems creating new read-only files */
-                if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) {
+                if (pTcon->unix_ext) {
                         CIFSSMBUnixSetPerms(xid, pTcon, full_path,
                                             inode->i_mode,
                                             (__u64)-1, (__u64)-1, 0 /* dev */,
@@ -430,7 +430,7 @@ reopen_error_exit:
                            go to server to get inode info */
                                 pCifsInode->clientCanCacheAll = FALSE;
                                 pCifsInode->clientCanCacheRead = FALSE;
-                                if (pTcon->ses->capabilities & CAP_UNIX)
+                                if (pTcon->unix_ext)
                                         rc = cifs_get_inode_info_unix(&inode,
                                                 full_path, inode->i_sb, xid);
                                 else