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Current Path : /usr/include/linux/ |
Current File : //usr/include/linux/kernel.h |
#ifndef _LINUX_KERNEL_H #define _LINUX_KERNEL_H /* * 'kernel.h' contains some often-used function prototypes etc */ #define SI_LOAD_SHIFT 16 struct sysinfo { long uptime; /* Seconds since boot */ unsigned long loads[3]; /* 1, 5, and 15 minute load averages */ unsigned long totalram; /* Total usable main memory size */ unsigned long freeram; /* Available memory size */ unsigned long sharedram; /* Amount of shared memory */ unsigned long bufferram; /* Memory used by buffers */ unsigned long totalswap; /* Total swap space size */ unsigned long freeswap; /* swap space still available */ unsigned short procs; /* Number of current processes */ unsigned short pad; /* explicit padding for m68k */ unsigned long totalhigh; /* Total high memory size */ unsigned long freehigh; /* Available high memory size */ unsigned int mem_unit; /* Memory unit size in bytes */ char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ }; /* Force a compilation error if condition is true */ #define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition)) /* Force a compilation error if condition is constant and true */ #define MAYBE_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)])) /* Force a compilation error if a constant expression is not a power of 2 */ #define BUILD_BUG_ON_NOT_POWER_OF_2(n) \ BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0)) /* Force a compilation error if condition is true, but also produce a result (of value 0 and type size_t), so the expression can be used e.g. in a structure initializer (or where-ever else comma expressions aren't permitted). */ #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) #define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); })) /* Trap pasters of __FUNCTION__ at compile-time */ #define __FUNCTION__ (__func__) /* This helps us to avoid #ifdef CONFIG_NUMA */ #ifdef CONFIG_NUMA #define NUMA_BUILD 1 #else #define NUMA_BUILD 0 #endif /* This helps us avoid #ifdef CONFIG_COMPACTION */ #ifdef CONFIG_COMPACTION #define COMPACTION_BUILD 1 #else #define COMPACTION_BUILD 0 #endif /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ #ifdef CONFIG_FTRACE_MCOUNT_RECORD # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD #endif struct module; void mark_hardware_unsupported(const char *msg); void mark_tech_preview(const char *msg, struct module *mod); #else #ifndef pr_fmt #define pr_fmt(fmt) fmt #endif #endif