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86b6c1f301
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Denys Vlasenko 86b6c1f301 ptrace: simplify PTRACE_foo constants and PTRACE_SETOPTIONS code 
Exchange PT_TRACESYSGOOD and PT_PTRACE_CAP bit positions, which makes
PT_option bits contiguous and therefore makes code in
ptrace_setoptions() much simpler.

Every PTRACE_O_TRACEevent is defined to (1 << PTRACE_EVENT_event)
instead of using explicit numeric constants, to ensure we don't mess up
relationship between bit positions and event ids.

PT_EVENT_FLAG_SHIFT was not particularly useful, PT_OPT_FLAG_SHIFT with
value of PT_EVENT_FLAG_SHIFT-1 is easier to use.

PT_TRACE_MASK constant is nuked, the only its use is replaced by
(PTRACE_O_MASK << PT_OPT_FLAG_SHIFT).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23 16:58:40 -07:00
..
acpi
asm-generic consolidate WARN_...ONCE() static variables 2012-03-23 16:58:31 -07:00
crypto crypto: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
drm headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
keys
linux ptrace: simplify PTRACE_foo constants and PTRACE_SETOPTIONS code 2012-03-23 16:58:40 -07:00
math-emu
media
misc
mtd
net poll: add poll_requested_events() and poll_does_not_wait() functions 2012-03-23 16:58:38 -07:00
pcmcia
rdma Merge branches 'cma', 'cxgb3', 'cxgb4', 'ehca', 'iser', 'mad', 'nes', 'qib', 'srp' and 'srpt' into for-next 2012-03-19 09:50:33 -07:00
rxrpc
scsi headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
sound headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
target target: Use array_zalloc for device_list 2012-03-15 19:15:51 -07:00
trace NFS client updates for Linux 3.4 2012-03-23 08:53:47 -07:00
video fbdev: sh_mipi_dsi: add extra phyctrl for sh_mipi_dsi_info 2012-03-21 07:24:01 +00:00
xen include/ and checkpatch: prefer __scanf to __attribute__((format(scanf,...) 2012-03-23 16:58:36 -07:00
Kbuild