On Tue, Jan 04, 2011 at 01:07:23AM -0500, Christoph Hellwig wrote:
> On Mon, Jan 03, 2011 at 10:06:58PM -0500, J. Bruce Fields wrote:
> > The nfs server only supports read delegations for now, so we don't care
> > how conflicts are determined. All we care is that unlocks are
> > recognized as matching the leases they are meant to remove. After the
> > last patch, a comparison of struct files will work for that purpose. So
> > we no longer need this callback.
>
> Please also update Documentation/filesystems/Locking for method
> removals.
Whoops, thanks for the reminder.
Looks like we never added fl_mylease?
That leaves the fl_release_private patch, updated as follows.
--b.
commit 3d801116bb23a1f446627ce1976950c7a126541e
Author: J. Bruce Fields <bfields@xxxxxxxxxx>
Date: Sat Oct 30 17:41:26 2010 -0400
nfsd4: eliminate lease delete callback
nfsd controls the lifetime of the lease, not the lock code, so there's
no need for this callback on lease destruction.
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index b6426f1..075be12 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -327,14 +327,12 @@ fl_release_private: yes yes
prototypes:
int (*fl_compare_owner)(struct file_lock *, struct file_lock *);
void (*fl_notify)(struct file_lock *); /* unblock callback */
- void (*fl_release_private)(struct file_lock *);
void (*fl_break)(struct file_lock *); /* break_lease callback */
locking rules:
BKL may block
fl_compare_owner: yes no
fl_notify: yes no
-fl_release_private: yes yes
fl_break: yes no
Currently only NFSD and NLM provide instances of this class. None of the
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index b82e368..2e44ad2 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2296,23 +2296,6 @@ void nfsd_break_deleg_cb(struct file_lock *fl)
}
/*
- * The file_lock is being reapd.
- *
- * Called by locks_free_lock() with lock_flocks() held.
- */
-static
-void nfsd_release_deleg_cb(struct file_lock *fl)
-{
- struct nfs4_delegation *dp = (struct nfs4_delegation *)fl->fl_owner;
-
- dprintk("NFSD nfsd_release_deleg_cb: fl %p dp %p dl_count %d\n", fl,dp, atomic_read(&dp->dl_count));
-
- if (!(fl->fl_flags & FL_LEASE) || !dp)
- return;
- dp->dl_flock = NULL;
-}
-
-/*
* Called from setlease() with lock_flocks() held
*/
static
@@ -2341,7 +2324,6 @@ int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
static const struct lock_manager_operations nfsd_lease_mng_ops = {
.fl_break = nfsd_break_deleg_cb,
- .fl_release_private = nfsd_release_deleg_cb,
.fl_mylease = nfsd_same_client_deleg_cb,
.fl_change = nfsd_change_deleg_cb,
};
--
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