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Merge branch 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'core-signal-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  signal: Print warning message when dropping signals
  signal: Fix alternate signal stack check
This commit is contained in:
Linus Torvalds
2009-12-05 09:52:33 -08:00
parent 607781762e f84d49b218
commit 69f061e0c2
3 changed files with 52 additions and 18 deletions
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13
include/linux/sched.h
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@ -2086,11 +2086,18 @@ static inline int is_si_special(const struct siginfo *info)
return info <= SEND_SIG_FORCED;
}
/* True if we are on the alternate signal stack. */
/*
* True if we are on the alternate signal stack.
*/
static inline int on_sig_stack(unsigned long sp)
{
return (sp - current->sas_ss_sp < current->sas_ss_size);
#ifdef CONFIG_STACK_GROWSUP
return sp >= current->sas_ss_sp &&
sp - current->sas_ss_sp < current->sas_ss_size;
#else
return sp > current->sas_ss_sp &&
sp - current->sas_ss_sp <= current->sas_ss_size;
#endif
}
static inline int sas_ss_flags(unsigned long sp)