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authorWill Deacon <will.deacon@arm.com>2012-11-29 22:33:29 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2012-12-05 11:20:03 +0000
commit45a7905fc48f6079932e77d64237cf7f008db5f4 (patch)
tree93b60ea0b2c3daf94b50dfa3125b2a3c59a0ff1b /drivers/clocksource
parentd91fb5c2677db90460611fce72e6a0af8f6c2a73 (diff)
arm64: vdso: defer shifting of nanosecond component of timespec
Shifting the nanosecond component of the computed timespec early can lead to sub-ns inaccuracies when using the truncated value as input to further arithmetic for things like conversions to monotonic time. This patch defers the timespec shifting until after the final value has been computed. Reported-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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