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| author | Ingo Molnar <mingo@kernel.org> | 2012-05-30 10:59:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-30 10:59:04 +0200 |
| commit | 063e04776172f93b16a5eefd5661a340c1126513 (patch) | |
| tree | 19cb1623631c8cc5dcf0d91f4731feec7cbefa04 /arch/x86/include/asm/processor.h | |
| parent | 59cd358a7a5b2f6b61faa01dae6cfda3830ac62a (diff) | |
| parent | 731a7378b81c2f5fa88ca1ae20b83d548d5613dc (diff) | |
| download | linux-063e04776172f93b16a5eefd5661a340c1126513.tar.gz linux-063e04776172f93b16a5eefd5661a340c1126513.tar.xz linux-063e04776172f93b16a5eefd5661a340c1126513.zip | |
Merge branch 'linus' into perf/urgent
Merge back Linus's latest branch so that we pick up the uprobes changes.
( I tested this branch locally and while it's one from the middle of the
merge window it's a good one to base further work off. )
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 7745b257f035..39bc5777211a 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -544,13 +544,16 @@ static inline void load_sp0(struct tss_struct *tss, * enable), so that any CPU's that boot up * after us can get the correct flags. */ -extern unsigned long mmu_cr4_features; +extern unsigned long mmu_cr4_features; +extern u32 *trampoline_cr4_features; static inline void set_in_cr4(unsigned long mask) { unsigned long cr4; mmu_cr4_features |= mask; + if (trampoline_cr4_features) + *trampoline_cr4_features = mmu_cr4_features; cr4 = read_cr4(); cr4 |= mask; write_cr4(cr4); @@ -561,6 +564,8 @@ static inline void clear_in_cr4(unsigned long mask) unsigned long cr4; mmu_cr4_features &= ~mask; + if (trampoline_cr4_features) + *trampoline_cr4_features = mmu_cr4_features; cr4 = read_cr4(); cr4 &= ~mask; write_cr4(cr4); |