[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>
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1 changed files with 2 additions and 2 deletions
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@ -5,13 +5,13 @@
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#include "os.h"
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#define UML_SIGLONGJMP(buf, val) do { \
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siglongjmp(*buf, val); \
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longjmp(*buf, val); \
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} while(0)
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#define UML_SIGSETJMP(buf, enable) ({ \
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int n; \
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enable = get_signals(); \
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n = sigsetjmp(*buf, 1); \
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n = setjmp(*buf); \
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if(n != 0) \
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set_signals(enable); \
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n; })
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