Wider endianness support

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

diff --git a/os/os-linux.h b/os/os-linux.h
index 7162dfa20fa7721434ccb23a9e3660909d776d36..2599091b7fd41d8fbf6efdff0ee6190dfe6e9034 100644 (file)
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -4,6 +4,7 @@
 #include <sys/ioctl.h>
 #include <sys/uio.h>
 #include <sys/syscall.h>
+#include <sys/vfs.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
@@ -11,8 +12,11 @@
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
+#include <endian.h>
 
 #include "indirect.h"
+#include "binject.h"
+#include "../file.h"
 
 #define FIO_HAVE_LIBAIO
 #define FIO_HAVE_POSIXAIO
@@ -33,6 +37,24 @@
 #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
+
+/*
+ * Can only enable this for newer glibcs, or the header and defines are
+ * missing
+ */
+#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 6
+#define FIO_HAVE_LINUX_FALLOCATE
+#endif
+
+#ifdef SYNC_FILE_RANGE_WAIT_BEFORE
+#define FIO_HAVE_SYNC_FILE_RANGE
+#endif
 
 #define OS_MAP_ANON            MAP_ANONYMOUS
 
@@ -89,6 +111,11 @@ 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.
@@ -178,14 +205,18 @@ 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;
@@ -256,6 +287,18 @@ static inline int fio_lookup_raw(dev_t dev, int *majdev, int *mindev)
 #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"
 
@@ -278,4 +321,31 @@ static inline int arch_cache_line_size(void)
                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