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authorChristoph Hellwig <hch@lst.de>2018-07-11 15:48:46 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2018-07-18 05:26:58 +0200
commit9ba546c01976a426292af99e682a557075d6c010 (patch)
tree316963a30a975e8a02fcd677e9c4700916594f55
parentocxlflash_getfile(): fix double-iput() on alloc_file() failures (diff)
downloadlinux-9ba546c01976a426292af99e682a557075d6c010.tar.xz
linux-9ba546c01976a426292af99e682a557075d6c010.zip
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>
-rw-r--r--fs/aio.c5
-rw-r--r--include/linux/syscalls.h1
-rw-r--r--include/uapi/linux/aio_abi.h6
3 files changed, 6 insertions, 6 deletions
diff --git a/fs/aio.c b/fs/aio.c
index e1d20124ec0e..b1a42e45698b 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -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,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 73810808cdf2..b06b5eeda8e8 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -11,6 +11,7 @@
#ifndef _LINUX_SYSCALLS_H
#define _LINUX_SYSCALLS_H
+struct __aio_sigset;
struct epoll_event;
struct iattr;
struct inode;
diff --git a/include/uapi/linux/aio_abi.h b/include/uapi/linux/aio_abi.h
index d00221345c19..ce43d340f010 100644
--- a/include/uapi/linux/aio_abi.h
+++ b/include/uapi/linux/aio_abi.h
@@ -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 */