configure: add gettid() test

[fio.git] / os / os-linux.h

diff --git a/os/os-linux.h b/os/os-linux.h
index 1ad6ebd28497e3257e52c58353881357b0c90f8e..36339ef3e94250200c909e4fbad2fcf8dffcd7f4 100644 (file)
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -19,8 +19,14 @@
 #include <linux/fs.h>
 #include <scsi/sg.h>
 
+#ifdef ARCH_HAVE_CRC_CRYPTO
+#include <sys/auxv.h>
+#ifndef HWCAP_CRC32
+#define HWCAP_CRC32             (1 << 7)
+#endif /* HWCAP_CRC32 */
+#endif /* ARCH_HAVE_CRC_CRYPTO */
+
 #include "./os-linux-syscall.h"
-#include "binject.h"
 #include "../file.h"
 
 #ifndef __has_builtin         // Optional of course.
@@ -41,7 +47,6 @@
 #define FIO_HAVE_CGROUPS
 #define FIO_HAVE_FS_STAT
 #define FIO_HAVE_TRIM
-#define FIO_HAVE_BINJECT
 #define FIO_HAVE_GETTID
 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
 #define FIO_HAVE_PWRITEV2
@@ -55,8 +60,6 @@
 
 typedef cpu_set_t os_cpu_mask_t;
 
-typedef struct drand48_data os_random_state_t;
-
 #ifdef CONFIG_3ARG_AFFINITY
 #define fio_setaffinity(pid, cpumask)          \
        sched_setaffinity((pid), sizeof(cpumask), &(cpumask))
@@ -71,7 +74,7 @@ typedef struct drand48_data os_random_state_t;
 
 #define fio_cpu_clear(mask, cpu)       (void) CPU_CLR((cpu), (mask))
 #define fio_cpu_set(mask, cpu)         (void) CPU_SET((cpu), (mask))
-#define fio_cpu_isset(mask, cpu)       CPU_ISSET((cpu), (mask))
+#define fio_cpu_isset(mask, cpu)       (CPU_ISSET((cpu), (mask)) != 0)
 #define fio_cpu_count(mask)            CPU_COUNT((mask))
 
 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
@@ -121,10 +124,12 @@ static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
        return syscall(__NR_ioprio_set, which, who, ioprio);
 }
 
+#ifndef CONFIG_HAVE_GETTID
 static inline int gettid(void)
 {
        return syscall(__NR_gettid);
 }
+#endif
 
 #define SPLICE_DEF_SIZE        (64*1024)
 
@@ -165,19 +170,6 @@ static inline unsigned long long os_phys_mem(void)
        return (unsigned long long) pages * (unsigned long long) pagesize;
 }
 
-static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
-{
-       srand48_r(seed, rs);
-}
-
-static inline long os_random_long(os_random_state_t *rs)
-{
-       long val;
-
-       lrand48_r(rs, &val);
-       return val;
-}
-
 static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 {
        struct raw_config_request rq;
@@ -398,7 +390,7 @@ static inline bool fio_fallocate(struct fio_file *f, uint64_t offset,
                                 uint64_t len)
 {
        int ret;
-       ret = fallocate(f->fd, 0, 0, len);
+       ret = fallocate(f->fd, 0, offset, len);
        if (ret == 0)
                return true;
 
@@ -410,4 +402,24 @@ static inline bool fio_fallocate(struct fio_file *f, uint64_t offset,
 }
 #endif
 
+#define FIO_HAVE_CPU_HAS
+static inline bool os_cpu_has(cpu_features feature)
+{
+       bool have_feature;
+       unsigned long fio_unused hwcap;
+
+       switch (feature) {
+#ifdef ARCH_HAVE_CRC_CRYPTO
+       case CPU_ARM64_CRC32C:
+               hwcap = getauxval(AT_HWCAP);
+               have_feature = (hwcap & HWCAP_CRC32) != 0;
+               break;
+#endif
+       default:
+               have_feature = false;
+       }
+
+       return have_feature;
+}
+
 #endif