X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=os%2Fos-linux.h;h=e9d7cf3e6f6e0cf4af791bab019fc9faf9586e21;hp=791ec7a78ae1693ae278fec4cc599a6e1566e324;hb=39b9356872f27c1a48a2ab09a5252dffd1de22d2;hpb=5b6f5c6609c530943310754028d2628d984b6595 diff --git a/os/os-linux.h b/os/os-linux.h index 791ec7a7..e9d7cf3e 100644 --- a/os/os-linux.h +++ b/os/os-linux.h @@ -1,16 +1,25 @@ #ifndef FIO_OS_LINUX_H #define FIO_OS_LINUX_H +#define FIO_OS os_linux + #include #include #include +#include +#include #include #include +#include +#include #include #include #include +#include #include "indirect.h" +#include "binject.h" +#include "../file.h" #define FIO_HAVE_LIBAIO #define FIO_HAVE_POSIXAIO @@ -26,8 +35,41 @@ #define FIO_HAVE_RAWBIND #define FIO_HAVE_BLKTRACE #define FIO_HAVE_STRSEP -#define FIO_HAVE_FALLOCATE #define FIO_HAVE_POSIXAIO_FSYNC +#define FIO_HAVE_PSHARED_MUTEX +#define FIO_HAVE_CL_SIZE +#define FIO_HAVE_CGROUPS +#define FIO_HAVE_FDATASYNC +#define FIO_HAVE_FS_STAT +#define FIO_HAVE_TRIM +#define FIO_HAVE_BINJECT +#define FIO_HAVE_CLOCK_MONOTONIC +#define FIO_HAVE_GETTID +#define FIO_USE_GENERIC_INIT_RANDOM_STATE +#define FIO_HAVE_E4_ENG + +#ifdef MAP_HUGETLB +#define FIO_HAVE_MMAP_HUGE +#endif + +/* + * Can only enable this for newer glibcs, or the header and defines are + * missing + */ +#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6 +#define FIO_HAVE_FALLOCATE +#endif +#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 8 +#define FIO_HAVE_LINUX_FALLOCATE +#endif + +#ifdef FIO_HAVE_LINUX_FALLOCATE +#define FIO_HAVE_FALLOC_ENG +#endif + +#ifdef SYNC_FILE_RANGE_WAIT_BEFORE +#define FIO_HAVE_SYNC_FILE_RANGE +#endif #define OS_MAP_ANON MAP_ANONYMOUS @@ -35,11 +77,8 @@ #define CLOCK_MONOTONIC 1 #endif -#ifdef FIO_HAVE_CPU_AFFINITY typedef cpu_set_t os_cpu_mask_t; -#else -typedef int os_cpu_mask_t; -#endif + typedef struct drand48_data os_random_state_t; /* @@ -54,25 +93,44 @@ typedef struct drand48_data os_random_state_t; * If you are on an ancient glibc (2.3.2), then define GLIBC_2_3_2 if you want * the affinity helpers to work. */ -#ifdef FIO_HAVE_CPU_AFFINITY #ifndef GLIBC_2_3_2 -#define fio_setaffinity(td) \ - sched_setaffinity((td)->pid, sizeof((td)->o.cpumask), &(td)->o.cpumask) +#define fio_setaffinity(pid, cpumask) \ + sched_setaffinity((pid), sizeof(cpumask), &(cpumask)) #define fio_getaffinity(pid, ptr) \ sched_getaffinity((pid), sizeof(cpu_set_t), (ptr)) #else -#define fio_setaffinity(td) \ - sched_setaffinity((td)->pid, &(td)->o.cpumask) +#define fio_setaffinity(pid, cpumask) \ + sched_setaffinity((pid), &(cpumask)) #define fio_getaffinity(pid, ptr) \ sched_getaffinity((pid), (ptr)) #endif -#endif + +#define fio_cpu_clear(mask, cpu) (void) CPU_CLR((cpu), (mask)) +#define fio_cpu_set(mask, cpu) (void) CPU_SET((cpu), (mask)) + +static inline int fio_cpuset_init(os_cpu_mask_t *mask) +{ + CPU_ZERO(mask); + return 0; +} + +static inline int fio_cpuset_exit(os_cpu_mask_t *mask) +{ + return 0; +} + +#define FIO_MAX_CPUS CPU_SETSIZE static inline int ioprio_set(int which, int who, int ioprio) { return syscall(__NR_ioprio_set, which, who, ioprio); } +static inline int gettid(void) +{ + return syscall(__NR_gettid); +} + /* * Just check for SPLICE_F_MOVE, if that isn't there, assume the others * aren't either. @@ -116,7 +174,7 @@ struct async_head_user; static inline struct syslet_uatom * async_exec(struct syslet_uatom *atom, struct async_head_user *ahu) { - return (void *) syscall(__NR_async_exec, atom, ahu); + return (struct syslet_uatom *) syscall(__NR_async_exec, atom, ahu); } static inline long @@ -162,14 +220,18 @@ enum { #define BLKFLSBUF _IO(0x12,97) #endif -static inline int blockdev_invalidate_cache(int fd) +#ifndef BLKDISCARD +#define BLKDISCARD _IO(0x12,119) +#endif + +static inline int blockdev_invalidate_cache(struct fio_file *f) { - return ioctl(fd, BLKFLSBUF); + return ioctl(f->fd, BLKFLSBUF); } -static inline int blockdev_size(int fd, unsigned long long *bytes) +static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) { - if (!ioctl(fd, BLKGETSIZE64, bytes)) + if (!ioctl(f->fd, BLKGETSIZE64, bytes)) return 0; return errno; @@ -236,4 +298,69 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev) #define FIO_O_NOATIME 0 #endif +#ifdef MADV_REMOVE +#define FIO_MADV_FREE MADV_REMOVE +#endif + +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define FIO_LITTLE_ENDIAN +#elif __BYTE_ORDER == __BIG_ENDIAN +#define FIO_BIG_ENDIAN +#else +#error "Unknown endianness" +#endif + +#define fio_swap16(x) __bswap_16(x) +#define fio_swap32(x) __bswap_32(x) +#define fio_swap64(x) __bswap_64(x) + +#define CACHE_LINE_FILE \ + "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" + +static inline int arch_cache_line_size(void) +{ + char size[32]; + int fd, ret; + + fd = open(CACHE_LINE_FILE, O_RDONLY); + if (fd < 0) + return -1; + + ret = read(fd, size, sizeof(size)); + + close(fd); + + if (ret <= 0) + return -1; + else + return atoi(size); +} + +static inline unsigned long long get_fs_size(const char *path) +{ + unsigned long long ret; + struct statfs s; + + if (statfs(path, &s) < 0) + return -1ULL; + + ret = s.f_bsize; + ret *= (unsigned long long) s.f_bfree; + return ret; +} + +static inline int os_trim(int fd, unsigned long long start, + unsigned long long len) +{ + uint64_t range[2]; + + range[0] = start; + range[1] = len; + + if (!ioctl(fd, BLKDISCARD, range)) + return 0; + + return errno; +} + #endif