linux-kernel - [PATCH] ksmbd: Remove usage of the deprecated ida_simple

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Message-Id: <f9d067e773f1cb3e9d4af19f18e80d7d35a71153.1702587034.git.christophe.jaillet@wanadoo.fr>
Date: Thu, 14 Dec 2023 21:50:55 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Namjae Jeon <linkinjeon@...nel.org>,
	Steve French <sfrench@...ba.org>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Tom Talpey <tom@...pey.com>
Cc: linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	linux-cifs@...r.kernel.org
Subject: [PATCH] ksmbd: Remove usage of the deprecated ida_simple_xx() API

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

This is less verbose.

Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_range() is inclusive. So change a 0xFFFFFFFF into a 0xFFFFFFFE in
order to keep the same behavior.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 fs/smb/server/mgmt/ksmbd_ida.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/fs/smb/server/mgmt/ksmbd_ida.c b/fs/smb/server/mgmt/ksmbd_ida.c
index 54194d959a5e..a18e27e9e0cd 100644
--- a/fs/smb/server/mgmt/ksmbd_ida.c
+++ b/fs/smb/server/mgmt/ksmbd_ida.c
@@ -5,42 +5,33 @@
 
 #include "ksmbd_ida.h"
 
-static inline int __acquire_id(struct ida *ida, int from, int to)
-{
-	return ida_simple_get(ida, from, to, GFP_KERNEL);
-}
-
 int ksmbd_acquire_smb2_tid(struct ida *ida)
 {
-	int id;
-
-	id = __acquire_id(ida, 1, 0xFFFFFFFF);
-
-	return id;
+	return ida_alloc_range(ida, 1, 0xFFFFFFFE, GFP_KERNEL);
 }
 
 int ksmbd_acquire_smb2_uid(struct ida *ida)
 {
 	int id;
 
-	id = __acquire_id(ida, 1, 0);
+	id = ida_alloc_min(ida, 1, GFP_KERNEL);
 	if (id == 0xFFFE)
-		id = __acquire_id(ida, 1, 0);
+		id = ida_alloc_min(ida, 1, GFP_KERNEL);
 
 	return id;
 }
 
 int ksmbd_acquire_async_msg_id(struct ida *ida)
 {
-	return __acquire_id(ida, 1, 0);
+	return ida_alloc_min(ida, 1, GFP_KERNEL);
 }
 
 int ksmbd_acquire_id(struct ida *ida)
 {
-	return __acquire_id(ida, 0, 0);
+	return ida_alloc(ida, GFP_KERNEL);
 }
 
 void ksmbd_release_id(struct ida *ida, int id)
 {
-	ida_simple_remove(ida, id);
+	ida_free(ida, id);
 }
-- 
2.34.1