linux.git/include/linux/signal.h, branch v3.9-rc2

new helper: signal_setup_done()

2013-02-03T20:09:26+00:00

usual "call force_sigsegv or signal_delivered" logics.  Takes
ksignal instead of separate siginfo/k_sigaction.

Signed-off-by: Al Viro

new helper: get_signal()

2013-02-03T20:09:25+00:00

On success get_signal_to_deliver() fills k_sigaction and siginfo.
_All_ users pass it addresses of the local variables sitting in
the same function.  Then they proceed to pass those addresses
pretty much in tandem to a bunch of helper functions; again, all
callers of those helpers are passing them such a pair, and one that
had been through get_signal_to_deliver() at that.

The obvious cleanup: introduce a new type that would contain a
 pair (struct ksignal) and begin switching to
using it.  Turns out that it's convenient to store the signal number
in the same object.

New helper, taking that sucker is a wrapper for get_signal_to_deliver();
takes struct ksignal * and returns bool.  On success fills ksignal
with the information for signal handler to be invoked.

For now it's a macro (to avoid header ordering headache), but eventually
it'll be a function in kernel/signal.c, with get_signal_to_deliver()
folded into it.

Signed-off-by: Al Viro

generic sys_sigaction() and compat_sys_sigaction()

2013-02-03T20:09:23+00:00

conditional on OLD_SIGACTION/COMPAT_OLD_SIGACTION

Signed-off-by: Al Viro

consolidate kernel-side struct sigaction declarations

2013-02-03T20:09:22+00:00

Signed-off-by: Al Viro

consolidate declarations of k_sigaction

2013-02-03T20:09:22+00:00

Only alpha and sparc are unusual - they have ka_restorer in it.
And nobody needs that exposed to userland.

Signed-off-by: Al Viro

switch rt_tgsigqueueinfo to COMPAT_SYSCALL_DEFINE

2013-02-03T20:09:21+00:00

C ABI violations on sparc, ppc and mips

Signed-off-by: Al Viro

generic compat_sys_rt_sigpending()

2013-02-03T20:09:19+00:00

conditional on GENERIC_COMPAT_RT_SIGPENDING; by the end of that series
it will become the same thing as COMPAT and conditional will die out.

Signed-off-by: Al Viro

new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those

2012-12-19T23:07:41+00:00

note that they are relying on access_ok() already checked by caller.

Signed-off-by: Al Viro

new helper: restore_altstack()

2012-12-19T23:07:40+00:00

to be used by rt_sigreturn instances

Signed-off-by: Al Viro

UAPI: (Scripted) Disintegrate include/linux

2012-10-13T09:46:48+00:00

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones