[PATCH] cifs: cleanup of ifdefs usage so it is more consistent

And fix to not needlessly send new POSIX QFSInfo when server does not
explicitly claim support for the new protocol extensions. 

Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 10 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 461a706b237b..6322aada491f 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -169,7 +169,8 @@ cifs_put_super(struct super_block *sb)
 static int
 cifs_statfs(struct super_block *sb, struct kstatfs *buf)
 {
-        int xid, rc = -EOPNOTSUPP;
+        int xid; 
+        int rc = -EOPNOTSUPP;
         struct cifs_sb_info *cifs_sb;
         struct cifsTconInfo *pTcon;
 
@@ -181,17 +182,18 @@ cifs_statfs(struct super_block *sb, struct kstatfs *buf)
         buf->f_type = CIFS_MAGIC_NUMBER;
 
         /* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */
-        buf->f_namelen = PATH_MAX;      /* PATH_MAX may be too long - it would presumably
-                                           be length of total path, note that some servers may be 
-                                           able to support more than this, but best to be safe
-                                           since Win2k and others can not handle very long filenames */
+        buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would 
+                                      presumably be total path, but note
+                                      that some servers (includinng Samba 3)
+                                      have a shorter maximum path */
         buf->f_files = 0;       /* undefined */
         buf->f_ffree = 0;       /* unlimited */
 
 #ifdef CONFIG_CIFS_EXPERIMENTAL
 /* BB we could add a second check for a QFS Unix capability bit */
 /* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */
-    if (pTcon->ses->capabilities & CAP_UNIX)
+    if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS &
+                        le64_to_cpu(pTcon->fsUnixInfo.Capability)))
             rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);
 
     /* Only need to call the old QFSInfo if failed
@@ -204,9 +206,10 @@ cifs_statfs(struct super_block *sb, struct kstatfs *buf)
            int f_type;
            __fsid_t f_fsid;
            int f_namelen;  */
-        /* BB get from info put in tcon struct at mount time with call to QFSAttrInfo */
+        /* BB get from info in tcon struct at mount time call to QFSAttrInfo */
         FreeXid(xid);
-        return 0;               /* always return success? what if volume is no longer available? */
+        return 0;               /* always return success? what if volume is no
+                                   longer available? */
 }
 
 static int cifs_permission(struct inode * inode, int mask, struct nameidata *nd)
@@ -600,9 +603,7 @@ struct file_operations cifs_dir_ops = {
 #ifdef CONFIG_CIFS_EXPERIMENTAL
         .dir_notify = cifs_dir_notify,
 #endif /* CONFIG_CIFS_EXPERIMENTAL */
-#ifdef CONFIG_CIFS_POSIX
         .ioctl  = cifs_ioctl,
-#endif /* CONFIG_CIFS_POSIX */
 };
 
 static void