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aio: don't expose __aio_sigset in uapi 

glibc uses a different defintion of sigset_t than the kernel does,
and the current version would pull in both.  To fix this just do not
expose the type at all - this somewhat mirrors pselect() where we
do not even have a type for the magic sigmask argument, but just
use pointer arithmetics.

Fixes: 7a074e96 ("aio: implement io_pgetevents")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Adrian Reber <adrian@lisas.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
hifive-unleashed-5.1
Christoph Hellwig 2018-07-11 15:48:46 +02:00 committed by Al Viro
parent c7e9075fb8
commit 9ba546c019
3 changed files with 6 additions and 6 deletions
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5
fs/aio.c
View File

@ -2042,6 +2042,11 @@ SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
return ret;
}
struct __aio_sigset {
const sigset_t __user *sigmask;
size_t sigsetsize;
};
SYSCALL_DEFINE6(io_pgetevents,
aio_context_t, ctx_id,
long, min_nr,

1
include/linux/syscalls.h
View File

@ -11,6 +11,7 @@
#ifndef _LINUX_SYSCALLS_H
#define _LINUX_SYSCALLS_H
struct __aio_sigset;
struct epoll_event;
struct iattr;
struct inode;

6
include/uapi/linux/aio_abi.h
View File

@ -29,7 +29,6 @@
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/signal.h>
#include <asm/byteorder.h>
typedef __kernel_ulong_t aio_context_t;
@ -108,10 +107,5 @@ struct iocb {
#undef IFBIG
#undef IFLITTLE
struct __aio_sigset {
const sigset_t __user *sigmask;
size_t sigsetsize;
};
#endif /* __LINUX__AIO_ABI_H */