Oleg Nesterov f7da04c9e3 ptrace/x86: flush_ptrace_hw_breakpoint() shoule clear the virtual debug registers ...

flush_ptrace_hw_breakpoint() destroys the counters set by ptrace, but
"leaks" ->debugreg6 and ->ptrace_dr7.

The problem is minor, but still it doesn't look right and flush_thread()
did this until commit 66cb591729 ("hw-breakpoints: use the new wrapper
routines to access debug registers in process/thread code").  Now that
PTRACE_DETACH does flush_ too this makes even more sense.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-07-09 10:33:26 -07:00

..

alpha

mm/ALPHA: clean up unused VALID_PAGE()

2013-07-03 16:07:39 -07:00

arc

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

arm

ptrace/arm: revert "hw_breakpoints: Fix racy access to ptrace breakpoints"

2013-07-09 10:33:25 -07:00

arm64

Merge tag 'xenarm-for-3.11-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen

2013-07-06 12:38:42 -07:00

avr32

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

blackfin

Merge branch 'kconfig-diet' from Dave Hansen

2013-07-04 11:25:51 -07:00

c6x

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

cris

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

frv

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04 11:40:58 -07:00

h8300

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

hexagon

mm/hexagon: prepare for removing num_physpages and simplify mem_init()

2013-07-03 16:07:36 -07:00

ia64

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

m32r

Merge branch 'kconfig-diet' from Dave Hansen

2013-07-04 11:25:51 -07:00

m68k

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

metag

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

microblaze

mm/microblaze: clean up unused VALID_PAGE()

2013-07-03 16:07:40 -07:00

mips

Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma

2013-07-07 11:11:43 -07:00

mn10300

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

openrisc

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

parisc

Merge branch 'kconfig-diet' from Dave Hansen

2013-07-04 11:25:51 -07:00

powerpc

ptrace/powerpc: revert "hw_breakpoints: Fix racy access to ptrace breakpoints"

2013-07-09 10:33:25 -07:00

s390

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-07-04 10:29:23 -07:00

score

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

sh

ptrace/sh: revert "hw_breakpoints: Fix racy access to ptrace breakpoints"

2013-07-09 10:33:26 -07:00

sparc

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-07-04 10:29:23 -07:00

tile

mm: invoke oom-killer from remaining unconverted page fault handlers

2013-07-09 10:33:20 -07:00

um

mm/um: prepare for removing num_physpages and simplify mem_init()

2013-07-03 16:07:37 -07:00

unicore32

Merge branch 'akpm' (updates from Andrew Morton)

2013-07-03 17:12:13 -07:00

x86

ptrace/x86: flush_ptrace_hw_breakpoint() shoule clear the virtual debug registers

2013-07-09 10:33:26 -07:00

xtensa

mm/xtensa: prepare for removing num_physpages and simplify mem_init()

2013-07-03 16:07:38 -07:00

.gitignore

…

Kconfig

mm: soft-dirty bits for user memory changes tracking

2013-07-03 16:07:26 -07:00