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linux-2.6/arch/sh/kernel
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Linus Torvalds 221af7f87b Split 'flush_old_exec' into two functions 
'flush_old_exec()' is the point of no return when doing an execve(), and
it is pretty badly misnamed.  It doesn't just flush the old executable
environment, it also starts up the new one.

Which is very inconvenient for things like setting up the new
personality, because we want the new personality to affect the starting
of the new environment, but at the same time we do _not_ want the new
personality to take effect if flushing the old one fails.

As a result, the x86-64 '32-bit' personality is actually done using this
insane "I'm going to change the ABI, but I haven't done it yet" bit
(TIF_ABI_PENDING), with SET_PERSONALITY() not actually setting the
personality, but just the "pending" bit, so that "flush_thread()" can do
the actual personality magic.

This patch in no way changes any of that insanity, but it does split the
'flush_old_exec()' function up into a preparatory part that can fail
(still called flush_old_exec()), and a new part that will actually set
up the new exec environment (setup_new_exec()).  All callers are changed
to trivially comply with the new world order.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2010-01-29 08:22:01 -08:00
..
cpu sh: dmaengine support for SH7785 2009-12-17 14:19:33 +09:00
vsyscall kbuild: rename ld-option to cc-ldoption 2009-09-20 12:27:42 +02:00
.gitignore sh: Add an arch/sh/kernel/.gitignore 2008-07-29 08:29:32 +09:00
Makefile sh: Remove old early serial console code V2 2009-12-15 12:07:35 +09:00
asm-offsets.c sh: Add R-standby sleep mode support 2009-10-30 14:38:45 +09:00
cpufreq.c sh: cpufreq: Include CPU id in info messages. 2009-09-15 09:26:04 +09:00
crash_dump.c kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE 2008-10-20 08:52:39 -07:00
debugtraps.S sh: unwinder: Use a special bug flag for unwinder traps. 2009-08-22 05:28:25 +09:00
disassemble.c sh: Add a simple code dumper for SUPERH32 show_regs(). 2008-12-22 18:43:49 +09:00
dma-nommu.c sh: Revamp PCI DMA coherence Kconfig bits. 2009-10-27 10:35:02 +09:00
dumpstack.c sh: flag the default unwinder as reliable. 2009-08-15 01:09:03 +09:00
dwarf.c Merge branch 'sh/stable-updates' 2009-11-09 10:55:36 +09:00
early_printk.c sh: Remove old early serial console code V2 2009-12-15 12:07:35 +09:00
entry-common.S sh: TS_RESTORE_SIGMASK conversion. 2009-10-14 16:05:42 +09:00
ftrace.c sh: ftrace: Fix up syscall tracing build. 2009-12-11 15:25:41 +09:00
head_32.S sh: CONFIG_PMB doesn't mean the MMU is in 32bit mode 2009-10-10 21:51:23 +09:00
head_64.S sh: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:39 -07:00
idle.c sh: Only use bl bit toggling for sleeping idle. 2009-12-21 11:57:33 +09:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c sh: Optimise memcpy_to/fromio for SH4 2009-08-24 17:35:07 +09:00
io_generic.c sh: Use the generic I/O port base for slowdown. 2009-11-12 16:36:26 +09:00
io_trapped.c sh: Only shout about fixing up unexpected unaligned accesses 2009-08-29 20:31:44 +09:00
irq.c genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
irq_32.c sh: Annotate irq functions with "notrace" 2009-10-27 07:37:10 +09:00
irq_64.c sh: Annotate irq functions with "notrace" 2009-10-27 07:37:10 +09:00
kgdb.c sh: Kill off kgdb's magical NMI debouncing. 2009-09-01 17:45:35 +09:00
kprobes.c sh: kprobes: kretprobe_trampoline needs to be global. 2008-09-09 08:13:28 +09:00
localtimer.c sh: Fix up clockevents broadcasting. 2009-08-19 18:00:03 +09:00
machine_kexec.c sh: fix kexec by removing check for old kexec-tools 2009-10-26 19:45:45 +09:00
machvec.c sh: Use the generic I/O port base for slowdown. 2009-11-12 16:36:26 +09:00
module.c sh: Tidy up the dwarf module helpers. 2009-10-13 13:32:19 +09:00
nmi_debug.c sh: nmi_debug support. 2009-09-01 17:38:32 +09:00
perf_callchain.c sh: perf events: Preliminary callchain support. 2009-11-05 16:20:09 +09:00
perf_event.c sh: perf events: Fix up uninitialized variable warning. 2009-11-05 13:56:50 +09:00
process_32.c sh: Fix up the FPU emulation build. 2009-11-25 12:07:31 +09:00
process_64.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
ptrace_32.c sh: Wire up HAVE_SYSCALL_TRACEPOINTS. 2009-09-16 14:30:34 +09:00
ptrace_64.c sh: Fix up FPU build for SH5 2009-12-15 12:07:36 +09:00
relocate_kernel.S sh: add kexec jump support 2009-03-18 18:57:43 +09:00
return_address.c sh: Generalize CALLER_ADDRx support. 2009-10-13 13:10:14 +09:00
setup.c sh-sci: Extend sh-sci driver with early console V2 2009-12-15 12:06:29 +09:00
sh_bios.c sh: Kill off sh_bios_in_gdb_mode(). 2008-12-22 18:44:44 +09:00
sh_ksyms_32.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
sh_ksyms_64.c sh: Clean up more superfluous symbol exports. 2009-10-27 11:51:19 +09:00
signal_32.c sh: TS_RESTORE_SIGMASK conversion. 2009-10-14 16:05:42 +09:00
signal_64.c sh: Fix up FPU build for SH5 2009-12-15 12:07:36 +09:00
smp.c Merge branch 'sh/stable-updates' 2009-10-14 15:53:08 +09:00
stacktrace.c sh: stacktrace: Properly terminate the trace entry buffer. 2009-08-15 01:11:37 +09:00
swsusp.c sh: hibernation support 2009-03-10 12:55:40 +09:00
sys_sh.c Unify sys_mmap* 2009-12-11 06:44:29 -05:00
sys_sh32.c headers: utsname.h redux 2009-09-23 18:13:10 -07:00
sys_sh64.c headers: utsname.h redux 2009-09-23 18:13:10 -07:00
syscalls_32.S sh: unwire sys_recvmmsg. 2010-01-19 17:00:06 +09:00
syscalls_64.S sh64: wire up sys_accept4. 2010-01-19 17:00:31 +09:00
time.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-09-18 09:43:09 -07:00
topology.c sh: Support SCHED_MC for SH-X3 multi-cores. 2009-10-16 18:00:02 +09:00
traps.c sh64: Fix up the CONFIG_GENERIC_BUG=n build. 2009-11-12 16:39:47 +09:00
traps_32.c sh: Make the unaligned trap handler always obey notification levels. 2009-12-14 11:46:09 +09:00
traps_64.c sh: Fix up FPU build for SH5 2009-12-15 12:07:36 +09:00
unwinder.c sh: unwinder: Use a special bug flag for unwinder traps. 2009-08-22 05:28:25 +09:00
vmlinux.lds.S Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-09-16 13:48:32 +09:00