Add few debug statements and limit thread usage.

[fio.git] / os-linux.h

diff --git a/os-linux.h b/os-linux.h
index 4c54c8ccc6f0991af3dfbf4edd16d3267c45e0ea..1ed3d3b650b206921c0c22a5b1e3c656820d228e 100644 (file)
--- a/os-linux.h
+++ b/os-linux.h
@@ -18,6 +18,7 @@
 #define FIO_HAVE_SPLICE
 #define FIO_HAVE_IOSCHED_SWITCH
 #define FIO_HAVE_ODIRECT
+#define FIO_HAVE_HUGETLB
 
 #define OS_MAP_ANON            (MAP_ANONYMOUS)
 
@@ -31,7 +32,7 @@ typedef struct drand48_data os_random_state_t;
        posix_fadvise((fd), (off_t)(off), (len), (advice))
 
 #define fio_setaffinity(td)            \
-       sched_setaffinity((td)->pid, sizeof((td)->cpumask), &(td)->cpumask)
+       sched_setaffinity((td)->pid, sizeof((td)->o.cpumask), &(td)->o.cpumask)
 #define fio_getaffinity(pid, ptr)      \
        sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
 
@@ -72,6 +73,39 @@ 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,
@@ -84,6 +118,15 @@ 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)
+{
+       return ioctl(fd, BLKFLSBUF);
+}
+
 static inline int blockdev_size(int fd, unsigned long long *bytes)
 {
        if (!ioctl(fd, BLKGETSIZE64, bytes))