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| author | Andy Lutomirski <[email protected]> | 2015-08-17 19:22:50 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-08-18 07:39:26 +0000 |
| commit | 512255a2ad2c832ca7d4de9f31245f73781922d0 (patch) | |
| tree | 494fcca893dc7a02c04353f11a21a0672f527fb6 /drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c | |
| parent | Linux 4.2-rc7 (diff) | |
| download | kernel-512255a2ad2c832ca7d4de9f31245f73781922d0.tar.gz kernel-512255a2ad2c832ca7d4de9f31245f73781922d0.zip | |
Revert "sched/x86_64: Don't save flags on context switch"
This reverts commit:
2c7577a75837 ("sched/x86_64: Don't save flags on context switch")
It was a nice speedup. It's also not quite correct: SYSENTER
enables interrupts too early.
We can re-add this optimization once the SYSENTER code is beaten
into shape, which should happen in 4.3 or 4.4.
Signed-off-by: Andy Lutomirski <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected] # v3.19
Link: http://lkml.kernel.org/r/85f56651f59f76624e80785a8fd3bdfdd089a818.1439838962.git.luto@kernel.org
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c')
0 files changed, 0 insertions, 0 deletions