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cifs: have cifsFileInfo hold a reference to a tlink rather than tcon pointer

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cifsFileInfo needs a pointer to a tcon, but it doesn't currently hold a
reference to it. Change it to keep a pointer to a tcon_link instead and
hold a reference to it.

That will keep the tcon from being freed until the file is closed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton
2010-09-29 19:51:11 -04:00
committed by Steve French
parent 7ffec37245
commit 13cfb7334e
9 changed files with 41 additions and 33 deletions
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3
fs/cifs/cifsfs.c
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@@ -595,7 +595,8 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
((arg == F_WRLCK) &&
(CIFS_I(inode)->clientCanCacheAll)))
return generic_setlease(file, arg, lease);
else if (cfile->tcon->local_lease && !CIFS_I(inode)->clientCanCacheRead)
else if (tlink_tcon(cfile->tlink)->local_lease &&
!CIFS_I(inode)->clientCanCacheRead)
/* If the server claims to support oplock on this
file, then we still need to check oplock even
if the local_lease mount option is set, but there