On Fri, 21 Aug 2009 02:55:04 -0400 Amerigo Wang <amwang@xxxxxxxxxx> wrote: > +#ifdef CONFIG_KEXEC_AUTO_RESERVE > +#define ARCH_HAS_DEFAULT_CRASH_SIZE > +static inline > +unsigned long long arch_default_crash_size(unsigned long long total_size) > +{ > + if (total_size >= 4ULL<<30 && total_size < 12ULL<<30) > + return 1ULL<<28; > + else if (total_size >= 12ULL<<30 && total_size < 128ULL<<30) > + return 1ULL<<29; > + else if (total_size >= 128ULL<<30 && total_size < 256ULL<<30) > + return 3ULL<<28; > + else if (total_size >= 256ULL<<30 && total_size < 378ULL<<30) > + return 1ULL<<30; > + else if (total_size >= 318ULL<<30 && total_size < 512ULL<<30) > + return 3ULL<<29; > + else if (total_size >= 512ULL<<30 && total_size < 768ULL<<30) > + return 2ULL<<30; > + else if (total_size >= 768ULL<<30) > + return 3ULL<<30; > +} > +#include <asm-generic/kexec.h> > +#endif a) Why on earth is this inlined? b) Please consider making arch_default_crash_size() a __weak function. You'll probably find the result to be pleasing. c) If we can't use __weak then please don't add ARCH_HAS_DEFAULT_CRASH_SIZE. Instead do this trick: #ifndef arch_default_crash_size static inline unsigned long long arch_default_crash_size(unsigned long long total_size) { ... } #define arch_default_crash_size arch_default_crash_size #endif because i) it's good to standardise on something and ii) one less symbol gets added to the kernel. d) why is asm-generic/kexec.h only included in asm/kexec.h if CONFIG_KEXEC_AUTO_RESERVE happened to be defined? That makes no sense - there may be a multitude of reasons why asm/kexec.h wants to include asm-generic/kexec.h. -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
![]() |