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BACKPORT: linux/time.h: Extract common header for vDSO

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The vDSO library should only include the necessary headers required for
a userspace library (UAPI and a minimal set of kernel headers). To make
this possible it is necessary to isolate from the kernel headers the
common parts that are strictly necessary to build the library.

Split time.h into linux and common headers to make the latter suitable
for inclusion in the vDSO library.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200320145351.32292-11-vincenzo.frascino@arm.com
(cherry picked from commit 639fff1cce0f7462bb4440deeffc1048ecfc6ebb)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 154668398
Change-Id: Id860dccf0d8afea3d6f65a243ed8cdf1760ba789
This commit is contained in:
Vincenzo Frascino 2020-03-20 14:53:35 +00:00 committed by Alistair Delva
parent b1b85d02cb
commit ac9cfc4ae7
2 changed files with 8 additions and 0 deletions
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3
include/linux/time.h
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@ -109,4 +109,7 @@ static inline bool itimerspec64_valid(const struct itimerspec64 *its)
* Equivalent to !(time_before32(@t, @l) || time_after32(@t, @h)).
*/
#define time_between32(t, l, h) ((u32)(h) - (u32)(l) >= (u32)(t) - (u32)(l))
# include <vdso/time.h>
#endif

5
include/vdso/time.h Normal file
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@ -0,0 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __VDSO_TIME_H
#define __VDSO_TIME_H
#endif /* __VDSO_TIME_H */