X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os%2Fos-linux.h;h=b766cbf9503af73a144e5cddf1f542ed8e13e3b4;hb=b23b6a2f66637e326c5825bf438059ecc62008d4;hp=791ec7a78ae1693ae278fec4cc599a6e1566e324;hpb=5b6f5c6609c530943310754028d2628d984b6595;p=fio.git

diff --git a/os/os-linux.h b/os/os-linux.h
index 791ec7a7..b766cbf9 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -6,6 +6,7 @@
 #include <sys/syscall.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <errno.h>
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
@@ -28,6 +29,8 @@
 #define FIO_HAVE_STRSEP
 #define FIO_HAVE_FALLOCATE
 #define FIO_HAVE_POSIXAIO_FSYNC
+#define FIO_HAVE_PSHARED_MUTEX
+#define FIO_HAVE_CL_SIZE
 
 #define OS_MAP_ANON		MAP_ANONYMOUS
 
@@ -35,11 +38,8 @@
 #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;
 
 /*
@@ -54,7 +54,6 @@ 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)
@@ -66,7 +65,22 @@ typedef struct drand48_data os_random_state_t;
 #define fio_getaffinity(pid, ptr)	\
 	sched_getaffinity((pid), (ptr))
 #endif
-#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)
 {
@@ -116,7 +130,7 @@ 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
@@ -236,4 +250,26 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 #define FIO_O_NOATIME	0
 #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