X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=os-linux.h;h=f2df97d3bf2588f7dc1dae447ed27988097a2078;hb=32cd46a085ac60f4f8b085e2d65ebfc6100bb8c5;hp=865853ba4ec83381cea5059e37b808020bbd37fa;hpb=8756e4d421722eaeb089067aeaaf317d05d53a57;p=fio.git

diff --git a/os-linux.h b/os-linux.h
index 865853ba..f2df97d3 100644
--- a/os-linux.h
+++ b/os-linux.h
@@ -3,6 +3,8 @@
 
 #include <sys/ioctl.h>
 #include <sys/uio.h>
+#include <sys/syscall.h>
+#include <unistd.h>
 #include <asm/unistd.h>
 
 #define FIO_HAVE_LIBAIO
@@ -13,6 +15,7 @@
 #define FIO_HAVE_SGIO
 #define FIO_HAVE_IOPRIO
 #define FIO_HAVE_SPLICE
+#define FIO_HAVE_IOSCHED_SWITCH
 
 #define OS_MAP_ANON		(MAP_ANONYMOUS)
 
@@ -62,6 +65,8 @@ static inline int vmsplice(int fd, const struct iovec *iov,
 #define SPLICE_F_MORE	(0x04)	/* expect more data */
 #define SPLICE_F_GIFT   (0x08)  /* pages passed in are a gift */
 
+#define SPLICE_DEF_SIZE	(64*1024)
+
 enum {
 	IOPRIO_WHO_PROCESS = 1,
 	IOPRIO_WHO_PGRP,
@@ -82,4 +87,16 @@ static inline int blockdev_size(int fd, unsigned long long *bytes)
 	return errno;
 }
 
+static inline unsigned long long os_phys_mem(void)
+{
+	long pagesize, pages;
+
+	pagesize = sysconf(_SC_PAGESIZE);
+	pages = sysconf(_SC_PHYS_PAGES);
+	if (pages == -1 || pagesize == -1)
+		return 0;
+
+	return (unsigned long long) pages * (unsigned long long) pagesize;
+}
+
 #endif