netdev - [PATCH 2/2] aio: mark __aio

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Message-Id: <20180629133725.17606-3-hch@lst.de>
Date:   Fri, 29 Jun 2018 15:37:25 +0200
From:   Christoph Hellwig <hch@....de>
To:     torvalds@...ux-foundation.org
Cc:     viro@...iv.linux.org.uk, netdev@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, Avi Kivity <avi@...lladb.com>
Subject: [PATCH 2/2] aio: mark __aio_sigset::sigmask const

From: Avi Kivity <avi@...lladb.com>

io_pgetevents() will not change the signal mask. Mark it const
to make it clear and to reduce the need for casts in user code.

Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Avi Kivity <avi@...lladb.com>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
[hch: reapply the patch that got incorrectly reverted]
Signed-off-by: Christoph Hellwig <hch@....de>
---
 include/uapi/linux/aio_abi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/aio_abi.h b/include/uapi/linux/aio_abi.h
index d4e768d55d14..3c5038b587ba 100644
--- a/include/uapi/linux/aio_abi.h
+++ b/include/uapi/linux/aio_abi.h
@@ -111,7 +111,7 @@ struct iocb {
 #undef IFLITTLE
 
 struct __aio_sigset {
-	sigset_t __user	*sigmask;
+	const sigset_t __user	*sigmask;
 	size_t		sigsetsize;
 };
 
-- 
2.18.0