cifs: eliminate cifs_posix_open_inode_helper

cifs: eliminate cifs_posix_open_inode_helper

This function is redundant. The only thing it does is set the canCache
flags, but those get set in cifs_new_fileinfo anyway.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index fd78a35..c10f085 100644 (file)
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -106,64 +106,6 @@ static inline int cifs_get_disposition(unsigned int flags)
                return FILE_OPEN;
 }
 
-/* all arguments to this function must be checked for validity in caller */
-static inline int
-cifs_posix_open_inode_helper(struct inode *inode, struct file *file,
-                            struct cifsInodeInfo *pCifsInode, __u32 oplock,
-                            u16 netfid)
-{
-
-       write_lock(&GlobalSMBSeslock);
-
-       pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
-       if (pCifsInode == NULL) {
-               write_unlock(&GlobalSMBSeslock);
-               return -EINVAL;
-       }
-
-       if (pCifsInode->clientCanCacheRead) {
-               /* we have the inode open somewhere else
-                  no need to discard cache data */
-               goto psx_client_can_cache;
-       }
-
-       /* BB FIXME need to fix this check to move it earlier into posix_open
-          BB  fIX following section BB FIXME */
-
-       /* if not oplocked, invalidate inode pages if mtime or file
-          size changed */
-/*     temp = cifs_NTtimeToUnix(le64_to_cpu(buf->LastWriteTime));
-       if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
-                          (file->f_path.dentry->d_inode->i_size ==
-                           (loff_t)le64_to_cpu(buf->EndOfFile))) {
-               cFYI(1, "inode unchanged on server");
-       } else {
-               if (file->f_path.dentry->d_inode->i_mapping) {
-                       rc = filemap_write_and_wait(file->f_path.dentry->d_inode->i_mapping);
-                       if (rc != 0)
-                               CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
-               }
-               cFYI(1, "invalidating remote inode since open detected it "
-                        "changed");
-               invalidate_remote_inode(file->f_path.dentry->d_inode);
-       } */
-
-psx_client_can_cache:
-       if ((oplock & 0xF) == OPLOCK_EXCLUSIVE) {
-               pCifsInode->clientCanCacheAll = true;
-               pCifsInode->clientCanCacheRead = true;
-               cFYI(1, "Exclusive Oplock granted on inode %p",
-                        file->f_path.dentry->d_inode);
-       } else if ((oplock & 0xF) == OPLOCK_READ)
-               pCifsInode->clientCanCacheRead = true;
-
-       /* will have to change the unlock if we reenable the
-          filemap_fdatawrite (which does not seem necessary */
-       write_unlock(&GlobalSMBSeslock);
-       return 0;
-}
-
-/* all arguments to this function must be checked for validity in caller */
 static inline int cifs_open_inode_helper(struct inode *inode,
        struct cifsTconInfo *pTcon, __u32 oplock, FILE_ALL_INFO *buf,
        char *full_path, int xid)
@@ -271,15 +213,6 @@ int cifs_open(struct inode *inode, struct file *file)
                                oflags, &oplock, &netfid, xid);
                if (rc == 0) {
                        cFYI(1, "posix open succeeded");
-                       /* no need for special case handling of setting mode
-                          on read only files needed here */
-
-                       rc = cifs_posix_open_inode_helper(inode, file,
-                                       pCifsInode, oplock, netfid);
-                       if (rc != 0) {
-                               CIFSSMBClose(xid, tcon, netfid);
-                               goto out;
-                       }
 
                        pCifsFile = cifs_new_fileinfo(inode, netfid, file,
                                                        tlink, oflags, oplock);