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Al Viro 9fc658763b [PATCH] missing helper - task_stack_page() 
Patchset annotates arch/* uses of ->thread_info.  Ones that really are about
access of thread_info of given process are simply switched to
task_thread_info(task); ones that deal with access to objects on stack are
switched to new helper - task_stack_page().  A _lot_ of the latter are
actually open-coded instances of "find where pt_regs are"; those are
consolidated into task_pt_regs(task) (many architectures actually have such
helper already).

Note that these annotations are not mandatory - any code not converted to
these helpers still works.  However, they clean up a lot of places and have
actually caught a number of bugs, so converting out of tree ports would be a
good idea...

As an example of breakage caught by that stuff, see i386 pt_regs mess - we
used to have it open-coded in a bunch of places and when back in April Stas
had fixed a bug in copy_thread(), the rest had been left out of sync.  That
required two followup patches (the latest - just before 2.6.15) _and_ still
had left /proc/*/stat eip field broken.  Try ps -eo eip on i386 and watch the
junk...

This patch:

new helper - task_stack_page(task).  Returns pointer to the memory object
containing task stack; usually thread_info of task sits in the beginning
of that object.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-01-12 09:08:50 -08:00
..
a.out.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
adb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
adb_iop.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigahw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigaints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amigayle.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amipcmcia.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
apollodma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
apollohw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atafd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atafdreg.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atari_SLM.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atari_acsi.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atari_joystick.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atari_stdma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atari_stram.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atarihw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atariints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atarikb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
atomic.h [PATCH] mutex subsystem, add atomic_xchg() to all arches 2006-01-09 15:59:17 -08:00
auxvec.h [PATCH] auxiliary vector cleanups 2005-09-07 16:57:21 -07:00
bitops.h [FLS64]: generic version 2006-01-03 13:11:06 -08:00
blinken.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bootinfo.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bug.h [PATCH] remove all kernel BUGs 2005-05-01 08:59:01 -07:00
bugs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bvme6000hw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
byteorder.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cache.h [PATCH] Kill L1_CACHE_SHIFT_MAX 2006-01-08 20:13:39 -08:00
cachectl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cacheflush.h [PATCH] m68k: move cache functions into separate file 2005-09-05 00:06:19 -07:00
checksum.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
contregs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cputime.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
current.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
delay.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
div64.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dma-mapping.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dsp56k.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dvma.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
elf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
emergency-restart.h [PATCH] Add emergency_restart() 2005-07-26 14:35:41 -07:00
entry.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
errno.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fbio.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fcntl.h [PATCH] Clean up struct flock64 definitions 2005-09-07 16:57:38 -07:00
floppy.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
futex.h [PATCH] consolidate asm/futex.h 2006-01-08 20:13:39 -08:00
hardirq.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hp300hw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hw_irq.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hwtest.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ide.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
idprom.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
intersil.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
io.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl.h [PATCH] Generic ioctl.h 2006-01-10 08:01:34 -08:00
ioctls.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipcbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.h [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
kmap_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linkage.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
local.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_asc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_baboon.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_iop.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_mouse.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_oss.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_psc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mac_via.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machdep.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machines.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
machw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
macintosh.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
macints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
math-emu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mc146818rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
md.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mman.h [PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing store 2006-01-06 08:33:22 -08:00
mmu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mmu_context.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
motorola_pgalloc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
motorola_pgtable.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
movs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
msgbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
mvme16xhw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mvme147hw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
namei.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nubus.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
openprom.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
oplib.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
page.h [PATCH] mm: consolidate get_order 2005-09-05 00:05:39 -07:00
page_offset.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
param.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
parport.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci.h [ACPI] PNPACPI vs sound IRQ 2005-07-12 00:03:30 -04:00
percpu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pgalloc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pgtable.h [PATCH] feature removal of io_remap_page_range() 2005-09-13 08:22:33 -07:00
poll.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
posix_types.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
processor.h [PATCH] m68k: convert thread flags to use bit fields 2005-11-13 18:14:14 -08:00
ptrace.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
q40_master.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
q40ints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raw_io.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
resource.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rtc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sbus.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scatterlist.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sections.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
segment.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore-helper.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
semaphore.h [PATCH] semaphore: Remove __MUTEX_INITIALIZER() 2005-10-30 17:37:27 -08:00
sembuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
serial.h [PATCH] Serial: Split 8250 port table (part 2) 2005-06-29 18:45:19 +01:00
setup.h [PATCH] ppc32: fix compilation error in include/asm-m68k/setup.h 2005-04-16 15:24:27 -07:00
shm.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmbuf.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
shmparam.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigcontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
siginfo.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.h [PATCH] asm/signal.h unification 2005-05-04 07:33:15 -07:00
socket.h [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options 2005-08-29 15:31:35 -07:00
sockios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
spinlock.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stat.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
statfs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
string.h [PATCH] m68k: cleanup inline mem functions 2005-09-05 00:06:19 -07:00
sun3-head.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3_pgalloc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3_pgtable.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3ints.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3mmu.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3x.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sun3xflop.h [PATCH] remove some more check_region stuff 2005-10-30 17:37:18 -08:00
sun3xprom.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
suspend.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
swim_iop.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
system.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termbits.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
termios.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
thread_info.h [PATCH] missing helper - task_stack_page() 2006-01-12 09:08:50 -08:00
timex.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlbflush.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
topology.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
traps.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
types.h [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
uaccess.h [PATCH] remove verify_area(): remove verify_area() from various uaccess.h headers 2005-09-07 16:57:35 -07:00
ucontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unaligned.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unistd.h [PATCH] unify sys_ptrace prototype 2005-10-30 17:37:20 -08:00
user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
virtconvert.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xor.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
zorro.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00