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Message-ID: <20240730121915.4514-1-ubizjak@gmail.com>
Date: Tue, 30 Jul 2024 14:18:34 +0200
From: Uros Bizjak <ubizjak@...il.com>
To: linux-aio@...ck.org,
linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Uros Bizjak <ubizjak@...il.com>,
Benjamin LaHaise <bcrl@...ck.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>,
Jan Kara <jack@...e.cz>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] fs/aio: Fix __percpu annotation of *cpu pointer in struct kioctx
__percpu annotation of *cpu pointer in struct kioctx is put at
the wrong place, resulting in several sparse warnings:
aio.c:623:24: warning: incorrect type in argument 1 (different address spaces)
aio.c:623:24: expected void [noderef] __percpu *__pdata
aio.c:623:24: got struct kioctx_cpu *cpu
aio.c:788:18: warning: incorrect type in assignment (different address spaces)
aio.c:788:18: expected struct kioctx_cpu *cpu
aio.c:788:18: got struct kioctx_cpu [noderef] __percpu *
aio.c:835:24: warning: incorrect type in argument 1 (different address spaces)
aio.c:835:24: expected void [noderef] __percpu *__pdata
aio.c:835:24: got struct kioctx_cpu *cpu
aio.c:940:16: warning: incorrect type in initializer (different address spaces)
aio.c:940:16: expected void const [noderef] __percpu *__vpp_verify
aio.c:940:16: got struct kioctx_cpu *
aio.c:958:16: warning: incorrect type in initializer (different address spaces)
aio.c:958:16: expected void const [noderef] __percpu *__vpp_verify
aio.c:958:16: got struct kioctx_cpu *
Put __percpu annotation at the right place to fix these warnings.
Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Cc: Benjamin LaHaise <bcrl@...ck.org>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
Cc: Christian Brauner <brauner@...nel.org>
Cc: Jan Kara <jack@...e.cz>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
fs/aio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/aio.c b/fs/aio.c
index 6066f64967b3..e8920178b50f 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -100,7 +100,7 @@ struct kioctx {
unsigned long user_id;
- struct __percpu kioctx_cpu *cpu;
+ struct kioctx_cpu __percpu *cpu;
/*
* For percpu reqs_available, number of slots we move to/from global
--
2.45.2
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