[PATCH] RLIMIT_CPU: document wrong return value
Document the fact that setrlimit(RLIMIT_CPU) doesn't return error codes when it should. I don't think we can fix this without a 2.7.x.. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ulrich Weigand <uweigand@de.ibm.com> Cc: Cliff Wickman <cpw@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -1656,6 +1656,13 @@ asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim)
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if (resource != RLIMIT_CPU)
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goto out;
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/*
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* RLIMIT_CPU handling. Note that the kernel fails to return an error
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* code if it rejected the user's attempt to set RLIMIT_CPU. This is a
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* very long-standing error, and fixing it now risks breakage of
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* applications, so we live with it
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*/
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if (new_rlim.rlim_cur == RLIM_INFINITY)
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goto out;
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