diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-23 19:24:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-23 19:24:47 -0700 |
| commit | 3e2cbc016b1d08463925db9b9bd3bd253f64b8b0 (patch) | |
| tree | f1bac77db344cc74382151e8c2a7a74085b98219 /arch/x86/kernel/process.c | |
| parent | 916654201008d5fb4d5f5dcf0b373d291da615ac (diff) | |
| parent | 0180a1e823d7c41d9a1c19f38e6069b38fe60c87 (diff) | |
Merge tag 'x86_splitlock_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 splitlock updates from Borislav Petkov:
- Add Raptor Lake to the set of CPU models which support splitlock
- Make life miserable for apps using split locks by slowing them down
considerably while the rest of the system remains responsive. The
hope is it will hurt more and people will really fix their misaligned
locks apps. As a result, free a TIF bit.
* tag 'x86_splitlock_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/split_lock: Enable the split lock feature on Raptor Lake
x86/split-lock: Remove unused TIF_SLD bit
x86/split_lock: Make life miserable for split lockers
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index cbe6aa3f649d..58fb48d3004f 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -684,9 +684,6 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p) /* Enforce MSR update to ensure consistent state */ __speculation_ctrl_update(~tifn, tifn); } - - if ((tifp ^ tifn) & _TIF_SLD) - switch_to_sld(tifn); } /* |