[CIFS] Add mount option for disabling sending byte range lock requests

over the wire (to help the case when applications break with cifs mandatory
lock behavior.  Add part one of mount option for requesting case
insensitive path name matching.

Signed-off-by: Steve French (sfrench@us.ibm.com)

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 628aa1a9fe6..ed3e9207d92 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -166,6 +166,8 @@ int cifs_get_inode_info_unix(struct inode **pinode,
                                 inode->i_fop = &cifs_file_direct_ops;
                         else
                                 inode->i_fop = &cifs_file_ops;
+                        if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+                                inode->i_fop->lock = NULL;
                         inode->i_data.a_ops = &cifs_addr_ops;
                 } else if (S_ISDIR(inode->i_mode)) {
                         cFYI(1, (" Directory inode"));
@@ -369,6 +371,8 @@ int cifs_get_inode_info(struct inode **pinode,
                                 inode->i_fop = &cifs_file_direct_ops;
                         else
                                 inode->i_fop = &cifs_file_ops;
+                        if(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+                                inode->i_fop->lock = NULL;
                         inode->i_data.a_ops = &cifs_addr_ops;
                 } else if (S_ISDIR(inode->i_mode)) {
                         cFYI(1, (" Directory inode "));