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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 19:57:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 19:57:58 -0700 |
| commit | 6dc2cce9321198172cd96f955a5fc798a4cc35a6 (patch) | |
| tree | 7947bbc1aa0dd5a3752ac33556f5647d9a14b133 /fs | |
| parent | 207fb8c3049cdc31de20ca9f91d0ae319125eb62 (diff) | |
| parent | f3e4559781bf0c393364baa6b772233088a711db (diff) | |
Merge branch 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pul x86/process updates from Ingo Molnar:
"The main change in this cycle was to add the ARCH_[GET|SET]_CPUID
prctl() ABI extension to control the availability of the CPUID
instruction, analogously to the existing PR_GET|SET_TSC ABI that
controls RDTSC.
Motivation: the 'rr' user-space record-and-replay execution debugger
would like to trap and emulate the CPUID instruction - which
instruction is normally unprivileged.
Trapping CPUID is possible on IvyBridge and later Intel CPUs - expose
this hardware capability"
* 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/syscalls/32: Ignore arch_prctl for other architectures
um/arch_prctl: Fix fallout from x86 arch_prctl() rework
x86/arch_prctl: Add ARCH_[GET|SET]_CPUID
x86/cpufeature: Detect CPUID faulting support
x86/syscalls/32: Wire up arch_prctl on x86-32
x86/arch_prctl: Add do_arch_prctl_common()
x86/arch_prctl/64: Rename do_arch_prctl() to do_arch_prctl_64()
x86/arch_prctl/64: Use SYSCALL_DEFINE2 to define sys_arch_prctl()
x86/arch_prctl: Rename 'code' argument to 'option'
x86/msr: Rename MISC_FEATURE_ENABLES to MISC_FEATURES_ENABLES
x86/process: Optimize TIF_NOTSC switch
x86/process: Correct and optimize TIF_BLOCKSTEP switch
x86/process: Optimize TIF checks in __switch_to_xtra()
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 65145a3df065..72934df68471 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1320,6 +1320,7 @@ void setup_new_exec(struct linux_binprm * bprm) else set_dumpable(current->mm, suid_dumpable); + arch_setup_new_exec(); perf_event_exec(); __set_task_comm(current, kbasename(bprm->filename), true); |