[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>

1 files changed, 11 insertions, 2 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index e111c69139b7..77e6c4c3a88b 100644
--- 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;