[PATCH] eventfd: Directly use ida_alloc()/free()

Bo Liu posted 1 patch 3 years, 10 months ago
fs/eventfd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
[PATCH] eventfd: Directly use ida_alloc()/free()
Posted by Bo Liu 3 years, 10 months ago
Use ida_alloc()/ida_free() instead of
ida_simple_get()/ida_simple_remove().
The latter is deprecated and more verbose.

Signed-off-by: Bo Liu <liubo03@inspur.com>
---
 fs/eventfd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/eventfd.c b/fs/eventfd.c
index 3627dd7d25db..e17a2ea53da9 100644
--- a/fs/eventfd.c
+++ b/fs/eventfd.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL_GPL(eventfd_signal);
 static void eventfd_free_ctx(struct eventfd_ctx *ctx)
 {
 	if (ctx->id >= 0)
-		ida_simple_remove(&eventfd_ida, ctx->id);
+		ida_free(&eventfd_ida, ctx->id);
 	kfree(ctx);
 }
 
@@ -423,7 +423,7 @@ static int do_eventfd(unsigned int count, int flags)
 	init_waitqueue_head(&ctx->wqh);
 	ctx->count = count;
 	ctx->flags = flags;
-	ctx->id = ida_simple_get(&eventfd_ida, 0, 0, GFP_KERNEL);
+	ctx->id = ida_alloc(&eventfd_ida, GFP_KERNEL);
 
 	flags &= EFD_SHARED_FCNTL_FLAGS;
 	flags |= O_RDWR;
-- 
2.27.0
Re: [PATCH] eventfd: Directly use ida_alloc()/free()
Posted by Christophe JAILLET 3 years, 10 months ago
Le 15/06/2022 à 08:03, Bo Liu a écrit :
> Use ida_alloc()/ida_free() instead of
> ida_simple_get()/ida_simple_remove().
> The latter is deprecated and more verbose.
> 
> Signed-off-by: Bo Liu <liubo03@inspur.com>

Hi,
for what it's worth:

Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

> ---
>   fs/eventfd.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/eventfd.c b/fs/eventfd.c
> index 3627dd7d25db..e17a2ea53da9 100644
> --- a/fs/eventfd.c
> +++ b/fs/eventfd.c
> @@ -89,7 +89,7 @@ EXPORT_SYMBOL_GPL(eventfd_signal);
>   static void eventfd_free_ctx(struct eventfd_ctx *ctx)
>   {
>   	if (ctx->id >= 0)
> -		ida_simple_remove(&eventfd_ida, ctx->id);
> +		ida_free(&eventfd_ida, ctx->id);
>   	kfree(ctx);
>   }
>   
> @@ -423,7 +423,7 @@ static int do_eventfd(unsigned int count, int flags)
>   	init_waitqueue_head(&ctx->wqh);
>   	ctx->count = count;
>   	ctx->flags = flags;
> -	ctx->id = ida_simple_get(&eventfd_ida, 0, 0, GFP_KERNEL);
> +	ctx->id = ida_alloc(&eventfd_ida, GFP_KERNEL);
>   
>   	flags &= EFD_SHARED_FCNTL_FLAGS;
>   	flags |= O_RDWR;