[RFC PATCH V3 28/43] rv64ilp32_abi: iov_iter: Resize kvec to match iov_iter's size
From: guoren@kernel.org
Date: 2025-03-25 12:23:28
Also in:
bpf, kvm, kvm-riscv, linux-arch, linux-btrfs, linux-crypto, linux-fsdevel, linux-input, linux-media, linux-mm, linux-nfs, linux-perf-users, linux-riscv, linux-sctp, linux-serial, linux-usb, lkml, netdev, netfilter-devel
Subsystem:
the rest, userspace copyin/copyout (uiovec) · Maintainers:
Linus Torvalds, Alexander Viro
From: "Guo Ren (Alibaba DAMO Academy)" <guoren@kernel.org> As drivers/vhost/vringh.c uses BUILD_BUG_ON(sizeof(struct iovec) != sizeof(struct kvec)), make them the same. Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@kernel.org> --- include/linux/uio.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/uio.h b/include/linux/uio.h
index 8ada84e85447..0e1ca023374c 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h@@ -17,7 +17,13 @@ typedef unsigned int __bitwise iov_iter_extraction_t; struct kvec { void *iov_base; /* and that should *never* hold a userland pointer */ +#if defined(CONFIG_64BIT) && (BITS_PER_LONG == 32) + u32 __pad1; +#endif size_t iov_len; +#if defined(CONFIG_64BIT) && (BITS_PER_LONG == 32) + u32 __pad2; +#endif }; enum iter_type {
--
2.40.1