Initial suppor for sync_file_range()

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

diff --git a/os/os-linux.h b/os/os-linux.h
index a4f7b244172d2dbefc0b24ac754df9327640cc4a..8c61cc05fda6a73f2e79ca1b830abf3aad00c42f 100644 (file)
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -6,10 +6,14 @@
 #include <sys/syscall.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <errno.h>
+#include <sched.h>
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
 
+#include "indirect.h"
+
 #define FIO_HAVE_LIBAIO
 #define FIO_HAVE_POSIXAIO
 #define FIO_HAVE_FADVISE
@@ -22,22 +26,65 @@
 #define FIO_HAVE_ODIRECT
 #define FIO_HAVE_HUGETLB
 #define FIO_HAVE_RAWBIND
-
-#define OS_MAP_ANON            (MAP_ANONYMOUS)
+#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_SYNC_FILE_RANGE
+
+#define OS_MAP_ANON            MAP_ANONYMOUS
+
+#ifndef CLOCK_MONOTONIC
+#define CLOCK_MONOTONIC 1
+#endif
 
 typedef cpu_set_t os_cpu_mask_t;
+
 typedef struct drand48_data os_random_state_t;
 
 /*
  * we want fadvise64 really, but it's so tangled... later
  */
+#ifdef FIO_HAVE_FADVISE
 #define fadvise(fd, off, len, advice)  \
        posix_fadvise((fd), (off_t)(off), (len), (advice))
+#endif
 
-#define fio_setaffinity(td)            \
-       sched_setaffinity((td)->pid, sizeof((td)->o.cpumask), &(td)->o.cpumask)
+/*
+ * If you are on an ancient glibc (2.3.2), then define GLIBC_2_3_2 if you want
+ * the affinity helpers to work.
+ */
+#ifndef GLIBC_2_3_2
+#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(pid, cpumask)  \
+       sched_setaffinity((pid), &(cpumask))
+#define fio_getaffinity(pid, ptr)      \
+       sched_getaffinity((pid), (ptr))
+#endif
+
+#define fio_cpu_clear(mask, cpu)       CPU_CLR((cpu), (mask))
+#define fio_cpu_set(mask, cpu)         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)
 {
@@ -57,7 +104,7 @@ static inline int ioprio_set(int which, int who, int ioprio)
 #define SPLICE_F_GIFT   (0x08)  /* pages passed in are a gift */
 
 static inline int splice(int fdin, loff_t *off_in, int fdout, loff_t *off_out,
-                        size_t len, unsigned long flags)
+                        size_t len, unsigned int flags)
 {
        return syscall(__NR_sys_splice, fdin, off_in, fdout, off_out, len, flags);
 }
@@ -87,7 +134,7 @@ 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
@@ -171,14 +218,6 @@ static inline long os_random_long(os_random_state_t *rs)
        return val;
 }
 
-static inline double os_random_double(os_random_state_t *rs)
-{
-       double val;
-
-       drand48_r(rs, &val);
-       return val;
-}
-
 static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 {
        struct raw_config_request rq;
@@ -209,4 +248,36 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
        return 0;
 }
 
+#ifdef O_NOATIME
+#define FIO_O_NOATIME  O_NOATIME
+#else
+#define FIO_O_NOATIME  0
+#endif
+
+#ifdef MADV_REMOVE
+#define FIO_MADV_FREE  MADV_REMOVE
+#endif
+
+#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);
+}
+
 #endif