2023-12-14 20:59:05

by Christophe JAILLET

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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 <[email protected]>
---
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



2023-12-15 00:58:45

by Namjae Jeon

[permalink] [raw]
Subject: Re: [PATCH] ksmbd: Remove usage of the deprecated ida_simple_xx() API

2023-12-15 5:50 GMT+09:00, Christophe JAILLET <[email protected]>:
> 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 <[email protected]>
Acked-by: Namjae Jeon <[email protected]>
Applied it to #ksmbd-for-next-next.
Thanks for your patch!