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authorDeepa Dinamani <deepa.kernel@gmail.com>2018-06-16 22:11:42 -0700
committerThomas Gleixner <tglx@linutronix.de>2018-06-24 14:39:46 +0200
commitd0dd63a8aee1ef89f2e48e554b796b9f9e4fcadb (patch)
tree3d7489da71f07ffa8926fd0584597c2a49eb6127 /kernel/time
parentdc1b7b6ca9d5fa905c164a667086d8a3d8605875 (diff)
downloadlinux-d0dd63a8aee1ef89f2e48e554b796b9f9e4fcadb.tar.bz2
time: Introduce struct __kernel_itimerspec
struct itimerspec is not y2038-safe. Introduce a new struct __kernel_itimerspec based on the kernel internal y2038-safe struct itimerspec64. The definition of struct __kernel_itimerspec includes two struct __kernel_timespec. Since struct __kernel_timespec has the same representation in native and compat modes, so does struct __kernel_itimerspec. This helps have a common entry point for syscalls using struct __kernel_itimerspec. New y2038-safe syscalls will use this new type. Since most of the new syscalls are just an update to the native syscalls with the type update, place the new definition under CONFIG_64BIT_TIME. This helps architectures that do not support the above config to keep using the old definition of struct itimerspec. Also change the get/put_itimerspec64 to use struct__kernel_itimerspec. This will help 32 bit architectures to use the new syscalls when architectures select CONFIG_64BIT_TIME. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: arnd@arndb.de Cc: viro@zeniv.linux.org.uk Cc: linux-fsdevel@vger.kernel.org Cc: linux-api@vger.kernel.org Cc: y2038@lists.linaro.org Link: https://lkml.kernel.org/r/20180617051144.29756-2-deepa.kernel@gmail.com
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/time.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c
index b1225db61eb2..c0195225fdce 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -927,7 +927,7 @@ int compat_put_timespec64(const struct timespec64 *ts, void __user *uts)
EXPORT_SYMBOL_GPL(compat_put_timespec64);
int get_itimerspec64(struct itimerspec64 *it,
- const struct itimerspec __user *uit)
+ const struct __kernel_itimerspec __user *uit)
{
int ret;
@@ -942,7 +942,7 @@ int get_itimerspec64(struct itimerspec64 *it,
EXPORT_SYMBOL_GPL(get_itimerspec64);
int put_itimerspec64(const struct itimerspec64 *it,
- struct itimerspec __user *uit)
+ struct __kernel_itimerspec __user *uit)
{
int ret;