aio: mark __aio_sigset::sigmask const

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@lst.de>
Signed-off-by: Avi Kivity <avi@scylladb.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/uapi/linux/aio_abi.h b/include/uapi/linux/aio_abi.h
index 75846164290e..d00221345c19 100644
--- a/include/uapi/linux/aio_abi.h
+++ b/include/uapi/linux/aio_abi.h
@@ -109,7 +109,7 @@ struct iocb {
 #undef IFLITTLE
 
 struct __aio_sigset {
-        sigset_t __user *sigmask;
+        const sigset_t __user   *sigmask;
         size_t          sigsetsize;
 };