From 7a35397f8c06bffd4c747537095321ff971045a5 Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Wed, 19 Sep 2018 21:41:08 -0700 Subject: io_pgetevents: use __kernel_timespec struct timespec is not y2038 safe. struct __kernel_timespec is the new y2038 safe structure for all syscalls that are using struct timespec. Update io_pgetevents interfaces to use struct __kernel_timespec. sigset_t also has different representations on 32 bit and 64 bit architectures. Hence, we need to support the following different syscalls: New y2038 safe syscalls: (Controlled by CONFIG_64BIT_TIME for 32 bit ABIs) Native 64 bit(unchanged) and native 32 bit : sys_io_pgetevents Compat : compat_sys_io_pgetevents_time64 Older y2038 unsafe syscalls: (Controlled by CONFIG_32BIT_COMPAT_TIME for 32 bit ABIs) Native 32 bit : sys_io_pgetevents_time32 Compat : compat_sys_io_pgetevents Note that io_getevents syscalls do not have a y2038 safe solution. Signed-off-by: Deepa Dinamani Signed-off-by: Arnd Bergmann --- include/linux/compat.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/compat.h') diff --git a/include/linux/compat.h b/include/linux/compat.h index 5776733b763f..8be8daa38c9a 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -562,6 +562,12 @@ asmlinkage long compat_sys_io_pgetevents(compat_aio_context_t ctx_id, struct io_event __user *events, struct old_timespec32 __user *timeout, const struct __compat_aio_sigset __user *usig); +asmlinkage long compat_sys_io_pgetevents_time64(compat_aio_context_t ctx_id, + compat_long_t min_nr, + compat_long_t nr, + struct io_event __user *events, + struct __kernel_timespec __user *timeout, + const struct __compat_aio_sigset __user *usig); /* fs/cookies.c */ asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); -- cgit