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powerpc/vdso32: implement clock_getres entirely

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clock_getres returns hrtimer_res for all clocks but coarse ones
for which it returns KTIME_LOW_RES.

return EINVAL for unknown clocks.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/37f94e47c91070b7606fb3ec3fe6fd2302a475a0.1575273217.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy
2019-12-02 07:57:33 +00:00
committed by Michael Ellerman
parent 6e2f9e9cfd
commit e33ffc956b
2 changed files with 14 additions and 8 deletions
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3
arch/powerpc/kernel/asm-offsets.c
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@@ -413,7 +413,10 @@ int main(void)
DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
DEFINE(CLOCK_MONOTONIC_COARSE, CLOCK_MONOTONIC_COARSE);
DEFINE(CLOCK_MAX, CLOCK_TAI);
DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
DEFINE(EINVAL, EINVAL);
DEFINE(KTIME_LOW_RES, KTIME_LOW_RES);
#ifdef CONFIG_BUG
DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));