X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os%2Fos-linux.h;h=2599091b7fd41d8fbf6efdff0ee6190dfe6e9034;hb=ff2451922f21826c2047208c2c3963843b1ffdcc;hp=024ef89ae23d1d4548b6c4a7982de9db1b6913b2;hpb=a596f047e2b3d447ccca76bd075f05473a1f8d1c;p=fio.git

diff --git a/os/os-linux.h b/os/os-linux.h
index 024ef89a..2599091b 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -12,6 +12,7 @@
 #include <linux/unistd.h>
 #include <linux/raw.h>
 #include <linux/major.h>
+#include <endian.h>
 
 #include "indirect.h"
 #include "binject.h"
@@ -32,7 +33,6 @@
 #define FIO_HAVE_BLKTRACE
 #define FIO_HAVE_STRSEP
 #define FIO_HAVE_FALLOCATE
-#define FIO_HAVE_LINUX_FALLOCATE
 #define FIO_HAVE_POSIXAIO_FSYNC
 #define FIO_HAVE_PSHARED_MUTEX
 #define FIO_HAVE_CL_SIZE
@@ -42,6 +42,15 @@
 #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
@@ -102,6 +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.
@@ -273,6 +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"