Commit c83d4635 authored Jan 18, 2006 by Jeff Dike Committed by Linus Torvalds Jan 18, 2006

[PATCH] uml: use setjmp/longjmp instead of sigsetjmp/siglongjmp



Now that we are doing soft interrupts, there's no point in using sigsetjmp and
siglongjmp.  Using setjmp and longjmp saves a sigprocmask on every jump.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 1d7173ba

arch/um/include/longjmp.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -5,13 +5,13 @@
		#include "os.h"

		#define UML_SIGLONGJMP(buf, val) do { \
		siglongjmp(*buf, val); \
		longjmp(*buf, val); \
		} while(0)

		#define UML_SIGSETJMP(buf, enable) ({ \
		int n; \
		enable = get_signals(); \
		n = sigsetjmp(*buf, 1); \
		n = setjmp(*buf); \
		if(n != 0) \
		set_signals(enable); \
		n; })

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