linux-kernel - [PATCH] eventfd: Directly use ida

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Message-ID: <20220615060314.2306-1-liubo03@inspur.com>
Date:   Wed, 15 Jun 2022 02:03:14 -0400
From:   Bo Liu <liubo03@...pur.com>
To:     <viro@...iv.linux.org.uk>
CC:     <linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Bo Liu <liubo03@...pur.com>
Subject: [PATCH] eventfd: Directly use ida_alloc()/free()

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@...pur.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