[PATCHSET] signals-review branch

[Oleg Nesterov]

Hello.

I collected the patches which were acked by Tejun and Matt and (I hope)
Linus agrees with,

	git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc.git signals-review

	[PATCH 01/13] signal: introduce retarget_shared_pending()
	[PATCH 02/13] signal: retarget_shared_pending: consider shared/unblocked signals only
	[PATCH 03/13] signal: retarget_shared_pending: optimize while_each_thread() loop
	[PATCH 04/13] signal: sigprocmask: narrow the scope of ->siglock
	[PATCH 05/13] signal: sigprocmask() should do retarget_shared_pending()
	[PATCH 06/13] x86: signal: handle_signal() should use set_current_blocked()
	[PATCH 07/13] x86: signal: sys_rt_sigreturn() should use set_current_blocked()
	[PATCH 08/13] signal: cleanup sys_rt_sigprocmask()
	[PATCH 09/13] signal: sys_rt_sigtimedwait: simplify the timeout logic
	[PATCH 10/13] signal: introduce do_sigtimedwait() to factor out compat/native code
	[PATCH 11/13] signal: do_sigtimedwait() needs retarget_shared_pending()
	[PATCH 12/13] signal: rename signandsets() to sigandnsets()
	[PATCH 13/13] signal: cleanup sys_sigprocmask()

I do not want to spam lkml again, all changes are purely cosmetic and hopefully
address the comments from you and Matt:

	all: rediff against ptrace branch

	[PATCH 02/13] signal: retarget_shared_pending: consider shared/unblocked signals only
	commit f646e227b88a164a841d6b6dd969d8a45272dd83

		retarget_shared_pending:
		
			s/set/which/, s/shared_pending/retarget

		exit_signals:

			s/set/unblocked

	[PATCH 03/13] signal: retarget_shared_pending: optimize while_each_thread() loop
	commit fec9993db093acfc3999a364e31f8adae41fcb28

		retarget_shared_pending:

			remove the unnecessary () in "if ((t->flags & PF_EXITING))"

			add the small comment

	[PATCH 05/13] signal: sigprocmask() should do retarget_shared_pending()
	commit e6fa16ab9c1e9b344428e6fea4d29e3cc4b28fb0

		set_current_blocked:

			add some comments

	[PATCH 07/13] x86: signal: sys_rt_sigreturn() should use set_current_blocked()
	commit e9bd3f0faa90084f188830d77723bafe422e486b

		no changes. I was asked to add the comment, but I have no
		idea what should be documented. The patch and the code are
		trivial.

	[PATCH 08/13] signal: cleanup sys_rt_sigprocmask()
	commit bb7efee2ca63b08795ffb3cda96fc89d2e641b79

		do not touch the "XXX" comment which I misunderstood

	[PATCH 10/13] signal: introduce do_sigtimedwait() to factor out compat/native code
	commit 943df1485a8ff0e600729e082e568ece04d4de9e

		Well. As it was suggested, I added the docbook coment to the
		new helper. Trivial copy-and-paste from sys_rt_sigtimedwait(),
		not sure we need these extra 6 lines.

Unless you have other comments, I'll merge this into ptrace branch.

Oleg.

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