Add iodepth_batch setting

[fio.git] / os-linux.h

diff --git a/os-linux.h b/os-linux.h
index e456ebcaea22204ffbcbf562377e8f6b6312d16c..549694a468081b31208486dbf4605191dd054fa5 100644 (file)
--- a/os-linux.h
+++ b/os-linux.h
@@ -20,6 +20,13 @@
 #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)
 
 typedef cpu_set_t os_cpu_mask_t;
@@ -73,6 +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 *event, struct async_head_user *ahu)
+{
+       return syscall(__NR_async_thread, event, ahu);
+}
+
+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,