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authorDeepa Dinamani <deepa.kernel@gmail.com>2018-06-17 08:11:42 +0300
committerThomas Gleixner <tglx@linutronix.de>2018-06-24 15:39:46 +0300
commitd0dd63a8aee1ef89f2e48e554b796b9f9e4fcadb (patch)
tree3d7489da71f07ffa8926fd0584597c2a49eb6127 /include/uapi/linux/time.h
parentdc1b7b6ca9d5fa905c164a667086d8a3d8605875 (diff)
downloadlinux-d0dd63a8aee1ef89f2e48e554b796b9f9e4fcadb.tar.xz
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 'include/uapi/linux/time.h')
-rw-r--r--include/uapi/linux/time.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
index fcf936656493..6b56a2208be7 100644
--- a/include/uapi/linux/time.h
+++ b/include/uapi/linux/time.h
@@ -49,6 +49,13 @@ struct __kernel_timespec {
};
#endif
+#ifndef __kernel_itimerspec
+struct __kernel_itimerspec {
+ struct __kernel_timespec it_interval; /* timer period */
+ struct __kernel_timespec it_value; /* timer expiration */
+};
+#endif
+
/*
* legacy timeval structure, only embedded in structures that
* traditionally used 'timeval' to pass time intervals (not absolute