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cifs: handle lease F_UNLCK requests properly 

Currently any F_UNLCK request for a lease just gets back -EAGAIN. Allow
them to go immediately to generic_setlease instead.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Jeff Layton 2014-08-09 10:16:44 -04:00 committed by Steve French
parent d43cc79343
commit 024408062b
1 changed files with 3 additions and 2 deletions
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5
fs/cifs/cifsfs.c
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@ -812,8 +812,9 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
if (!(S_ISREG(inode->i_mode)))
return -EINVAL;
/* check if file is oplocked */
if (((arg == F_RDLCK) && CIFS_CACHE_READ(CIFS_I(inode))) ||
/* Check if file is oplocked if this is request for new lease */
if (arg == F_UNLCK ||
((arg == F_RDLCK) && CIFS_CACHE_READ(CIFS_I(inode))) ||
((arg == F_WRLCK) && CIFS_CACHE_WRITE(CIFS_I(inode))))
return generic_setlease(file, arg, lease);
else if (tlink_tcon(cfile->tlink)->local_lease &&