forked from luck/tmp_suning_uos_patched
9977d9b379
Pull big execve/kernel_thread/fork unification series from Al Viro:
"All architectures are converted to new model. Quite a bit of that
stuff is actually shared with architecture trees; in such cases it's
literally shared branch pulled by both, not a cherry-pick.
A lot of ugliness and black magic is gone (-3KLoC total in this one):
- kernel_thread()/kernel_execve()/sys_execve() redesign.
We don't do syscalls from kernel anymore for either kernel_thread()
or kernel_execve():
kernel_thread() is essentially clone(2) with callback run before we
return to userland, the callbacks either never return or do
successful do_execve() before returning.
kernel_execve() is a wrapper for do_execve() - it doesn't need to
do transition to user mode anymore.
As a result kernel_thread() and kernel_execve() are
arch-independent now - they live in kernel/fork.c and fs/exec.c
resp. sys_execve() is also in fs/exec.c and it's completely
architecture-independent.
- daemonize() is gone, along with its parts in fs/*.c
- struct pt_regs * is no longer passed to do_fork/copy_process/
copy_thread/do_execve/search_binary_handler/->load_binary/do_coredump.
- sys_fork()/sys_vfork()/sys_clone() unified; some architectures
still need wrappers (ones with callee-saved registers not saved in
pt_regs on syscall entry), but the main part of those suckers is in
kernel/fork.c now."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (113 commits)
do_coredump(): get rid of pt_regs argument
print_fatal_signal(): get rid of pt_regs argument
ptrace_signal(): get rid of unused arguments
get rid of ptrace_signal_deliver() arguments
new helper: signal_pt_regs()
unify default ptrace_signal_deliver
flagday: kill pt_regs argument of do_fork()
death to idle_regs()
don't pass regs to copy_process()
flagday: don't pass regs to copy_thread()
bfin: switch to generic vfork, get rid of pointless wrappers
xtensa: switch to generic clone()
openrisc: switch to use of generic fork and clone
unicore32: switch to generic clone(2)
score: switch to generic fork/vfork/clone
c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone()
take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h
mn10300: switch to generic fork/vfork/clone
h8300: switch to generic fork/vfork/clone
tile: switch to generic clone()
...
Conflicts:
arch/microblaze/include/asm/Kbuild
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| .. | ||
| adc.h | ||
| addrspace.h | ||
| alignment.h | ||
| asm-offsets.h | ||
| atomic-grb.h | ||
| atomic-irq.h | ||
| atomic-llsc.h | ||
| atomic.h | ||
| barrier.h | ||
| bitops-grb.h | ||
| bitops-llsc.h | ||
| bitops-op32.h | ||
| bitops.h | ||
| bl_bit_32.h | ||
| bl_bit_64.h | ||
| bl_bit.h | ||
| bug.h | ||
| bugs.h | ||
| cache_insns_32.h | ||
| cache_insns_64.h | ||
| cache_insns.h | ||
| cache.h | ||
| cacheflush.h | ||
| checksum_32.h | ||
| checksum.h | ||
| clkdev.h | ||
| clock.h | ||
| cmpxchg-grb.h | ||
| cmpxchg-irq.h | ||
| cmpxchg-llsc.h | ||
| cmpxchg.h | ||
| device.h | ||
| dma-mapping.h | ||
| dma-register.h | ||
| dma.h | ||
| dmabrg.h | ||
| dwarf.h | ||
| elf.h | ||
| entry-macros.S | ||
| fb.h | ||
| fixmap.h | ||
| flat.h | ||
| fpu.h | ||
| freq.h | ||
| ftrace.h | ||
| futex-irq.h | ||
| futex.h | ||
| gpio.h | ||
| hardirq.h | ||
| hd64461.h | ||
| heartbeat.h | ||
| hugetlb.h | ||
| hw_breakpoint.h | ||
| hw_irq.h | ||
| i2c-sh7760.h | ||
| io_generic.h | ||
| io_noioport.h | ||
| io_trapped.h | ||
| io.h | ||
| irq.h | ||
| irqflags.h | ||
| Kbuild | ||
| kdebug.h | ||
| kexec.h | ||
| kgdb.h | ||
| kmap_types.h | ||
| kprobes.h | ||
| linkage.h | ||
| machvec.h | ||
| mc146818rtc.h | ||
| mmu_context_32.h | ||
| mmu_context_64.h | ||
| mmu_context.h | ||
| mmu.h | ||
| mmzone.h | ||
| module.h | ||
| mutex-llsc.h | ||
| mutex.h | ||
| page.h | ||
| pci.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable_32.h | ||
| pgtable_64.h | ||
| pgtable-2level.h | ||
| pgtable-3level.h | ||
| pgtable.h | ||
| posix_types.h | ||
| processor_32.h | ||
| processor_64.h | ||
| processor.h | ||
| ptrace_32.h | ||
| ptrace_64.h | ||
| ptrace.h | ||
| push-switch.h | ||
| reboot.h | ||
| romimage-macros.h | ||
| rtc.h | ||
| rwsem.h | ||
| seccomp.h | ||
| sections.h | ||
| segment.h | ||
| setup.h | ||
| sfp-machine.h | ||
| sh_bios.h | ||
| sh7760fb.h | ||
| shmparam.h | ||
| siu.h | ||
| smc37c93x.h | ||
| smp-ops.h | ||
| smp.h | ||
| sparsemem.h | ||
| spi.h | ||
| spinlock_types.h | ||
| spinlock.h | ||
| sram.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| string_32.h | ||
| string_64.h | ||
| string.h | ||
| suspend.h | ||
| switch_to_32.h | ||
| switch_to_64.h | ||
| switch_to.h | ||
| syscall_32.h | ||
| syscall_64.h | ||
| syscall.h | ||
| syscalls_32.h | ||
| syscalls_64.h | ||
| syscalls.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb_64.h | ||
| tlb.h | ||
| tlbflush.h | ||
| topology.h | ||
| traps_32.h | ||
| traps_64.h | ||
| traps.h | ||
| types.h | ||
| uaccess_32.h | ||
| uaccess_64.h | ||
| uaccess.h | ||
| unaligned-sh4a.h | ||
| unaligned.h | ||
| uncached.h | ||
| unistd.h | ||
| unwinder.h | ||
| user.h | ||
| vga.h | ||
| vmlinux.lds.h | ||
| watchdog.h | ||
| word-at-a-time.h | ||