[PATCH 5/9] fs: remove various compat readv/writev helpers
Al Viro
viro at zeniv.linux.org.uk
Wed Sep 23 14:25:49 UTC 2020
On Wed, Sep 23, 2020 at 08:05:43AM +0200, Christoph Hellwig wrote:
> COMPAT_SYSCALL_DEFINE3(readv, compat_ulong_t, fd,
> - const struct compat_iovec __user *,vec,
> + const struct iovec __user *, vec,
Um... Will it even compile?
> #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
> COMPAT_SYSCALL_DEFINE4(preadv64, unsigned long, fd,
> - const struct compat_iovec __user *,vec,
> + const struct iovec __user *, vec,
Ditto. Look into include/linux/compat.h and you'll see
asmlinkage long compat_sys_preadv64(unsigned long fd,
const struct compat_iovec __user *vec,
unsigned long vlen, loff_t pos);
How does that manage to avoid the compiler screaming bloody
murder?
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