[CIFS] Only convert / when server does not support posix paths

Also add warning if posix path setting changes on reconnect

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

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e111c69139b7e7d602b5a33d4927cb5b1ededc17..77e6c4c3a88b80c160c32c965c0b6f848c702329 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1722,8 +1722,15 @@ void reset_cifs_unix_caps(int xid, struct cifsTconInfo *tcon,
                           originally at mount time */
                        if ((saved_cap & CIFS_UNIX_POSIX_ACL_CAP) == 0)
                                cap &= ~CIFS_UNIX_POSIX_ACL_CAP;
-                       if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0)
+                       if ((saved_cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+                               if (cap & CIFS_UNIX_POSIX_PATHNAMES_CAP)
+                                       cERROR(1, ("POSIXPATH support change"));
                                cap &= ~CIFS_UNIX_POSIX_PATHNAMES_CAP;
+                       } else if ((cap & CIFS_UNIX_POSIX_PATHNAMES_CAP) == 0) {
+                               cERROR(1, ("possible reconnect error"));
+                               cERROR(1,
+                                       ("server disabled POSIX path support"));
+                       }
                }
 
                cap &= CIFS_UNIX_CAP_MASK;
@@ -2243,7 +2250,9 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                        tcon->unix_ext = 0; /* server does not support them */
 
                /* convert forward to back slashes in prepath here if needed */
-               convert_delimiter(cifs_sb->prepath, CIFS_DIR_SEP(cifs_sb));
+               if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) == 0)
+                       convert_delimiter(cifs_sb->prepath,
+                                         CIFS_DIR_SEP(cifs_sb));
 
                if ((tcon->unix_ext == 0) && (cifs_sb->rsize > (1024 * 127))) {
                        cifs_sb->rsize = 1024 * 127;