[Devel] [PATCH] vdso/ia32: Revert monotonic time virtualization for ia32

Andrey Ryabinin aryabinin at virtuozzo.com
Mon Jul 10 13:00:10 MSK 2017



On 07/07/2017 08:47 PM, Dmitry Safonov wrote:
> As vz-kernel is based on v3.10 kernel and __vdso_gettimeofday()
> was added to vdso page laterly, we don't need to virtualize
> clocks in case of ia32 clock_gettime()/vdso_gettimeofday().
> 
> So, they are present in ms, but our kernel yet have poorer
> vdso32.lds.S:
> VERSION
> {
> 	LINUX_2.5 {
> 	global:
> 		__kernel_vsyscall;
> 		__kernel_sigreturn;
> 		__kernel_rt_sigreturn;
> 	local: *;
> 	};
> }
> 
> https://jira.sw.ru/browse/PSBM-68050
> 
> Fixes: commit 25960eecc77e ("ve/vdso: virtualized monotonic gettime
> through vdso") and commit 481382a5f63e ("vdso32: Fix monotonic time
> virtualization for ia32)".
> Cc: Andrey Ryabinin <aryabinin at virtuozzo.com>
> Signed-off-by: Dmitry Safonov <dsafonov at virtuozzo.com>

Acked-by: Andrey Ryabinin <aryabinin at virtuozzo.com>


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