While doing a bit of adding argument names to fs.h,
I looked at lm_grant and it seems the 2nd argument
is always NULL.

How about removing it?

This doesn't apply as it depends on some other patches
but it should be clear enough...

---
 fs/dlm/plock.c     |  8 ++++----
 fs/lockd/svclock.c | 12 +++---------
 include/linux/fs.h |  2 +-
 3 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index e59d332..e0ab3a9 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -30,7 +30,7 @@ struct plock_op {
 
 struct plock_xop {
        struct plock_op xop;
-       int (*callback)(struct file_lock *, struct file_lock *, int);
+       int (*callback)(struct file_lock *fl, int result);
        void *fl;
        void *file;
        struct file_lock flc;
@@ -190,7 +190,7 @@ static int dlm_plock_callback(struct plock_op *op)
        struct file *file;
        struct file_lock *fl;
        struct file_lock *flc;
-       int (*notify)(struct file_lock *fl, struct file_lock *cont, int result) 
= NULL;
+       int (*notify)(struct file_lock *fl, int result) = NULL;
        struct plock_xop *xop = (struct plock_xop *)op;
        int rv = 0;
 
@@ -209,7 +209,7 @@ static int dlm_plock_callback(struct plock_op *op)
        notify = xop->callback;
 
        if (op->info.rv) {
-               notify(fl, NULL, op->info.rv);
+               notify(fl, op->info.rv);
                goto out;
        }
 
@@ -228,7 +228,7 @@ static int dlm_plock_callback(struct plock_op *op)
                          (unsigned long long)op->info.number, file, fl);
        }
 
-       rv = notify(fl, NULL, 0);
+       rv = notify(fl, 0);
        if (rv) {
                /* XXX: We need to cancel the fs lock here: */
                log_print("dlm_plock_callback: lock granted after lock request "
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index ab798a8..2a61701 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -667,22 +667,16 @@ nlmsvc_cancel_blocked(struct net *net, struct nlm_file 
*file, struct nlm_lock *l
  * deferred rpc for GETLK and SETLK.
  */
 static void
-nlmsvc_update_deferred_block(struct nlm_block *block, struct file_lock *conf,
-                            int result)
+nlmsvc_update_deferred_block(struct nlm_block *block, int result)
 {
        block->b_flags |= B_GOT_CALLBACK;
        if (result == 0)
                block->b_granted = 1;
        else
                block->b_flags |= B_TIMED_OUT;
-       if (conf) {
-               if (block->b_fl)
-                       __locks_copy_lock(block->b_fl, conf);
-       }
 }
 
-static int nlmsvc_grant_deferred(struct file_lock *fl, struct file_lock *conf,
-                                       int result)
+static int nlmsvc_grant_deferred(struct file_lock *fl, int result)
 {
        struct nlm_block *block;
        int rc = -ENOENT;
@@ -697,7 +691,7 @@ static int nlmsvc_grant_deferred(struct file_lock *fl, 
struct file_lock *conf,
                                        rc = -ENOLCK;
                                        break;
                                }
-                               nlmsvc_update_deferred_block(block, conf, 
result);
+                               nlmsvc_update_deferred_block(block, result);
                        } else if (result == 0)
                                block->b_granted = 1;
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 36b8648..6150125 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -842,7 +842,7 @@ struct lock_manager_operations {
        int (*lm_compare_owner)(struct file_lock *fl1, struct file_lock *fl2);
        unsigned long (*lm_owner_key)(struct file_lock *fl);
        void (*lm_notify)(struct file_lock *fl);        /* unblock callback */
-       int (*lm_grant)(struct file_lock *fl, struct file_lock *conf, int 
result);
+       int (*lm_grant)(struct file_lock *fl, int result);
        void (*lm_break)(struct file_lock *fl);
        int (*lm_change)(struct file_lock **fl, int type);
 };
-- 
1.8.1.2.459.gbcd45b4.dirty



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