X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=os-linux.h;h=b147d4f3b340c0fd2bb5f352b469beb97e6b57e7;hp=4c54c8ccc6f0991af3dfbf4edd16d3267c45e0ea;hb=bf0dc8fae8b21c666a0a927c1d473ad59101e7fd;hpb=97fbdfa1a48a6b535d420e3f53bcb62ed4eff3f1

diff --git a/os-linux.h b/os-linux.h
index 4c54c8cc..b147d4f3 100644
--- a/os-linux.h
+++ b/os-linux.h
@@ -18,6 +18,14 @@
 #define FIO_HAVE_SPLICE
 #define FIO_HAVE_IOSCHED_SWITCH
 #define FIO_HAVE_ODIRECT
+#define FIO_HAVE_HUGETLB
+
+/*
+ * Only for x86 currently
+ */
+#if defined(__i386__)
+#define FIO_HAVE_SYSLET
+#endif
 
 #define OS_MAP_ANON		(MAP_ANONYMOUS)
 
@@ -72,6 +80,39 @@ static inline int vmsplice(int fd, const struct iovec *iov,
 
 #define SPLICE_DEF_SIZE	(64*1024)
 
+#ifdef FIO_HAVE_SYSLET
+
+struct syslet_uatom;
+struct async_head_user;
+
+/*
+ * syslet stuff
+ */
+static inline struct syslet_uatom *
+async_exec(struct syslet_uatom *atom, struct async_head_user *ahu)
+{
+	return (void *) syscall(__NR_async_exec, atom, ahu);
+}
+
+static inline long
+async_wait(unsigned long min_wait_events, unsigned long user_ring_idx,
+	   struct async_head_user *ahu)
+{
+	return syscall(__NR_async_wait, min_wait_events,
+			user_ring_idx, ahu);
+}
+
+static inline long async_thread(void)
+{
+	return syscall(__NR_async_thread);
+}
+
+static inline long umem_add(unsigned long *uptr, unsigned long inc)
+{
+	return syscall(__NR_umem_add, uptr, inc);
+}
+#endif /* FIO_HAVE_SYSLET */
+
 enum {
 	IOPRIO_WHO_PROCESS = 1,
 	IOPRIO_WHO_PGRP,
@@ -84,6 +125,18 @@ enum {
 #define BLKGETSIZE64	_IOR(0x12,114,size_t)
 #endif
 
+#ifndef BLKFLSBUF
+#define BLKFLSBUF	_IO(0x12,97)
+#endif
+
+static inline int blockdev_invalidate_cache(int fd)
+{
+	if (!ioctl(fd, BLKFLSBUF))
+		return 0;
+
+	return errno;
+}
+
 static inline int blockdev_size(int fd, unsigned long long *bytes)
 {
 	if (!ioctl(fd, BLKGETSIZE64, bytes))