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CIFS: Reopen the file if reconnect durable handle failed 

This is a follow-on patch for 8/8 patch from the durable handles
series. It fixes the problem when durable file handle timeout
expired on the server and reopen returns -ENOENT for such files.
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky 2013-07-11 10:58:30 +04:00 committed by Steve French
parent 1c46943f84
commit b33fcf1c9d
1 changed files with 7 additions and 1 deletions
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8
fs/cifs/file.c
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@ -681,6 +681,13 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
* not dirty locally we could do this.
*/
rc = server->ops->open(xid, &oparms, &oplock, NULL);
if (rc == -ENOENT && oparms.reconnect == false) {
/* durable handle timeout is expired - open the file again */
rc = server->ops->open(xid, &oparms, &oplock, NULL);
/* indicate that we need to relock the file */
oparms.reconnect = true;
}
if (rc) {
mutex_unlock(&cfile->fh_mutex);
cifs_dbg(FYI, "cifs_reopen returned 0x%x\n", rc);
@ -1510,7 +1517,6 @@ cifs_setlk(struct file *file, struct file_lock *flock, __u32 type,
if (!rc)
goto out;
/*
* Windows 7 server can delay breaking lease from read to None
* if we set a byte-range lock on a file - break it explicitly