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locks: Remove unused conf argument from lm_grant

PATCH In review Jeff Layton 4 participants 4 messages Aug 14, 2014

Subsystems (4)
VFS NFS client NFS server Distributed lock manager (DLM)
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Jeff Layton

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#0 lore raw

PATCH 1/1 locks: Remove unused conf argument from lm_grant

From: Joe Perches <[email protected]>

This argument is always NULL so don't pass it around.

Signed-off-by Joe Perches <[email protected]>
Signed-off-by Jeff Layton <[email protected]>
---
 fs/dlm/plock.c     |  8 ++++----
 fs/lockd/svclock.c | 12 +++---------
 include/linux/fs.h |  2 +-
 3 files changed, 8 insertions(+), 14 deletions(-)
fs/dlm/plock.c +4 -4
index f704458ea5f5..e0ab3a93eeff 100644
@@ -30,7 +30,7 @@ struct plock_op {
 
 struct plock_xop {
 	struct plock_op xop;
-	void *callback;
+	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)(void *, void *, int) = 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 "
fs/lockd/svclock.c +3 -9
index ab798a88ec1d..2a6170133c1d 100644
@@ -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;
include/linux/fs.h +1 -1
index f0890e4a7c25..6cb1f3d182ee 100644
@@ -869,7 +869,7 @@ struct lock_manager_operations {
 	int (*lm_compare_owner)(struct file_lock *, struct file_lock *);
 	unsigned long (*lm_owner_key)(struct file_lock *);
 	void (*lm_notify)(struct file_lock *);	/* unblock callback */
-	int (*lm_grant)(struct file_lock *, struct file_lock *, int);
+	int (*lm_grant)(struct file_lock *, int);
 	void (*lm_break)(struct file_lock *);
 	int (*lm_change)(struct file_lock **, int);
 };
Signature · 1 line
1.9.3
#1 lore raw
Quoted 4 lines · On Thu, 14 Aug 2014 09:52:40 -0400 Jeff Layton <[email protected]> wrote:

From: Joe Perches <[email protected]>

This argument is always NULL so don't pass it around.

Quoted 8 lines
Signed-off-by Joe Perches <[email protected]>
Signed-off-by Jeff Layton <[email protected]>
---
 fs/dlm/plock.c     |  8 ++++----
 fs/lockd/svclock.c | 12 +++---------
 include/linux/fs.h |  2 +-
 3 files changed, 8 insertions(+), 14 deletions(-)

Joe, if this looks OK with you, I'll plan to merge this for v3.18.

Kinglong, I've added this to my "locks-3.18" branch if you need something to base your nfsd conflock patches on:

git://git.samba.org/jlayton/linux.git

Thanks,

Signature · 1 line
Jeff Layton <[email protected]>
#2 lore raw
Quoted 11 lines · Jeff Layton
Quoted 9 lines · On Thu, 14 Aug 2014 09:52:40 -0400 Jeff Layton <[email protected]> wrote:

From: Joe Perches <[email protected]>
This argument is always NULL so don't pass it around.

Signed-off-by Joe Perches <[email protected]>
Signed-off-by Jeff Layton <[email protected]>
---
 fs/dlm/plock.c     |  8 ++++----
 fs/lockd/svclock.c | 12 +++---------
 include/linux/fs.h |  2 +-
 3 files changed, 8 insertions(+), 14 deletions(-)
Quoted 1 line

Joe, if this looks OK with you, I'll plan to merge this for v3.18.

Looks fine, thanks Jeff.

#3 lore raw
In reply to Jeff Layton

ACK, and passes my usual tests too for what it's worth.

--b.

Quoted 106 lines · Jeff Layton

From: Joe Perches <[email protected]>

This argument is always NULL so don't pass it around.

Signed-off-by Joe Perches <[email protected]>
Signed-off-by Jeff Layton <[email protected]>
---
 fs/dlm/plock.c     |  8 ++++----
 fs/lockd/svclock.c | 12 +++---------
 include/linux/fs.h |  2 +-
 3 files changed, 8 insertions(+), 14 deletions(-)
fs/dlm/plock.c +4 -4
index f704458ea5f5..e0ab3a93eeff 100644
@@ -30,7 +30,7 @@ struct plock_op {
 
 struct plock_xop {
 	struct plock_op xop;
-	void *callback;
+	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)(void *, void *, int) = 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 "
fs/lockd/svclock.c +3 -9
index ab798a88ec1d..2a6170133c1d 100644
@@ -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;
include/linux/fs.h +1 -1
index f0890e4a7c25..6cb1f3d182ee 100644
@@ -869,7 +869,7 @@ struct lock_manager_operations {
 	int (*lm_compare_owner)(struct file_lock *, struct file_lock *);
 	unsigned long (*lm_owner_key)(struct file_lock *);
 	void (*lm_notify)(struct file_lock *);	/* unblock callback */
-	int (*lm_grant)(struct file_lock *, struct file_lock *, int);
+	int (*lm_grant)(struct file_lock *, int);
 	void (*lm_break)(struct file_lock *);
 	int (*lm_change)(struct file_lock **, int);
 };
Signature · 1 line
1.9.3