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authorDenys Vlasenko <vda.linux@googlemail.com>2012-03-23 15:02:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-23 16:58:40 -0700
commit86b6c1f301faf085de5a3f9ce16b8de6e69c729b (patch)
tree115a168d533a54f4e3dc1ed195c58b65a71d8627 /include/scsi/srp.h
parent8c5cf9e5c50dc902713897e10201aa71f3546aa1 (diff)
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>
Diffstat (limited to 'include/scsi/srp.h')
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