Denys Vlasenko 36acef2510 x86/asm/entry/64: Simplify looping around preempt_schedule_irq() ... At the 'exit_intr' label we test whether interrupt/exception was in kernel. If it did, we jump to the preemption check. If preemption does happen (IOW if we call preempt_schedule_irq()), we go back to 'exit_intr'. But it's pointless, we already know that the test succeeded last time, preemption doesn't change the fact that interrupt/exception was in the kernel. We can go back directly to checking PER_CPU_VAR(__preempt_count) instead. This makes the 'exit_intr' label unused, drop it. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Drewry <wad@chromium.org> Link: http://lkml.kernel.org/r/1427821211-25099-5-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-04-01 13:17:39 +02:00
..
acpi	x86/platform, acpi: Bypass legacy PIC and PIT in ACPI hardware reduced mode	2015-03-12 12:07:13 +01:00
apic	x86/apic/numachip: Fix sibling map with NumaChip	2015-03-12 16:58:59 +01:00
cpu	x86/asm/entry: Remove user_mode_ignore_vm86()	2015-03-31 11:45:19 +02:00
kprobes	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
.gitignore
alternative.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
amd_gart_64.c
amd_nb.c
apb_timer.c	x86/platform: Remove unused function from apb_timer.c	2014-12-23 10:43:35 +01:00
aperture_64.c
apm_32.c
asm-offsets_32.c	x86/asm/entry/32: Document the 32-bit SYSENTER "emergency stack" better	2015-03-17 09:25:29 +01:00
asm-offsets_64.c	x86/asm/entry/64/compat: Change the 32-bit sysenter code to use sp0	2015-03-06 08:32:58 +01:00
asm-offsets.c
audit_64.c
bootflag.c
check.c
cpuid.c
crash_dump_32.c
crash_dump_64.c
crash.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
devicetree.c
doublefault.c
dumpstack_32.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
dumpstack_64.c
dumpstack.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
e820.c	x86, e820: Clean up sanitize_e820_map() users	2015-01-23 16:14:27 +01:00
early_printk.c	Specify PCI based UART for earlyprintk	2015-02-02 10:11:27 -08:00
early-quirks.c
entry_32.S	x86/asm/entry: Create and use a 'TOP_OF_KERNEL_STACK_PADDING' macro	2015-03-17 09:25:26 +01:00
entry_64.S	x86/asm/entry/64: Simplify looping around preempt_schedule_irq()	2015-04-01 13:17:39 +02:00
espfix_64.c
ftrace.c	module: remove mod arg from module_free, rename module_memfree().	2015-01-20 11:38:33 +10:30
head32.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
head64.c	Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-02-16 14:58:12 -08:00
head_32.S	x86/asm/boot: Use already defined KEEP_SEGMENTS macro in head_{32,64}.S	2015-02-19 10:05:04 +01:00
head_64.S	x86/asm: Optimize unnecessarily wide TEST instructions	2015-03-07 11:12:43 +01:00
head.c
hpet.c	kernel.h: remove ancient __FUNCTION__ hack	2015-02-12 18:54:13 -08:00
hw_breakpoint.c
i386_ksyms_32.c
i387.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
i8237.c
i8253.c
i8259.c
io_delay.c
ioport.c	x86/asm/entry: Rename 'init_tss' to 'cpu_tss'	2015-03-06 08:32:58 +01:00
iosf_mbi.c
irq_32.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
irq_64.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
irq_work.c
irq.c	x86/irq: Check for valid irq descriptor in check_irq_vectors_for_cpu_disable()	2015-02-18 15:01:42 +01:00
irqinit.c
jump_label.c
kdebugfs.c
kexec-bzimage64.c
kgdb.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
ksysfs.c
kvm.c	x86/spinlocks/paravirt: Fix memory corruption on unlock	2015-02-18 14:53:49 +01:00
kvmclock.c
ldt.c
livepatch.c
machine_kexec_32.c
machine_kexec_64.c
Makefile	Linux 4.0-rc2	2015-03-04 06:35:43 +01:00
mcount_64.S
mmconf-fam10h_64.c
module.c	Revert "x86/mm/ASLR: Propagate base load address calculation"	2015-03-16 11:18:21 +01:00
mpparse.c
msr.c
nmi_selftest.c
nmi.c
paravirt_patch_32.c
paravirt_patch_64.c
paravirt-spinlocks.c
paravirt.c
pci-calgary_64.c
pci-dma.c
pci-iommu_table.c
pci-nommu.c
pci-swiotlb.c
pcspeaker.c
perf_regs.c	x86/asm/entry/64: Save user RSP in pt_regs->sp on SYSCALL64 fastpath	2015-03-10 13:56:10 +01:00
pmc_atom.c	x86: pmc_atom: Expose contents of PSS	2015-01-20 12:50:14 +01:00
probe_roms.c
process_32.c	x86/asm/entry: Get rid of KERNEL_STACK_OFFSET	2015-03-24 19:42:38 +01:00
process_64.c	x86/asm/entry: Get rid of KERNEL_STACK_OFFSET	2015-03-24 19:42:38 +01:00
process.c	x86/asm/entry: Unify and fix initial thread_struct::sp0 values	2015-03-17 09:25:27 +01:00
ptrace.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
pvclock.c
quirks.c
reboot_fixups_32.c
reboot.c
relocate_kernel_32.S	x86/asm: Optimize unnecessarily wide TEST instructions	2015-03-07 11:12:43 +01:00
relocate_kernel_64.S	x86/asm: Optimize unnecessarily wide TEST instructions	2015-03-07 11:12:43 +01:00
resource.c
rtc.c	kernel.h: remove ancient __FUNCTION__ hack	2015-02-12 18:54:13 -08:00
setup_percpu.c
setup.c	Revert "x86/mm/ASLR: Propagate base load address calculation"	2015-03-16 11:18:21 +01:00
signal.c	x86/asm/entry: Fix execve() and sigreturn() syscalls to always return via IRET	2015-03-23 08:52:46 +01:00
smp.c
smpboot.c	x86/asm/entry: Get rid of KERNEL_STACK_OFFSET	2015-03-24 19:42:38 +01:00
stacktrace.c
step.c
sys_x86_64.c
syscall_32.c	x86/compat: Merge native and compat 32-bit syscall tables	2015-03-04 06:16:21 +01:00
syscall_64.c
sysfb_efi.c
sysfb_simplefb.c
sysfb.c
tboot.c
tce_64.c
test_nx.c
test_rodata.c
time.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
tls.c	x86, tls: Interpret an all-zero struct user_desc as "no segment"	2015-01-22 21:45:07 +01:00
tls.h
topology.c
trace_clock.c
tracepoint.c
traps.c	x86/asm/entry: Remove user_mode_ignore_vm86()	2015-03-31 11:45:19 +02:00
tsc_msr.c
tsc_sync.c
tsc.c	x86/tsc: Change Fast TSC calibration failed from error to info	2015-01-23 10:53:52 +01:00
uprobes.c	x86/asm/entry: Change all 'user_mode_vm()' calls to 'user_mode()'	2015-03-23 11:14:17 +01:00
verify_cpu.S
vm86_32.c	x86/asm/entry: Rename 'init_tss' to 'cpu_tss'	2015-03-06 08:32:58 +01:00
vmlinux.lds.S
vsmp_64.c
vsyscall_64.c
vsyscall_emu_64.S
vsyscall_gtod.c
vsyscall_trace.h
x86_init.c
x8664_ksyms_64.c	x86_64: kasan: add interceptors for memset/memmove/memcpy functions	2015-02-13 21:21:41 -08:00
xsave.c	x86/fpu: Avoid math_state_restore() without used_math() in __restore_xstate_sig()	2015-03-13 12:44:28 +01:00