fs/fuse/fuse.h

   1 #ifndef ___FUSE_H___
   2 #define ___FUSE_H___
   3 extern void fuse_request_send_background_ex(struct fuse_conn *fc,
   4     struct fuse_req *req, __u32 size);
   5 extern void fuse_request_send_ex(struct fuse_conn *fc, struct fuse_req *req,
   6     __u32 size);
   7
   8 #ifndef USER_BUILD_KERNEL  /* IO log is only enabled in eng load */
   9 #define FUSEIO_TRACE
  10 #endif
  11
  12 #ifdef MET_FUSEIO_TRACE
  13 #define MET_FUSE_IOLOG_INIT()   struct timespec met_fuse_start_time, met_fuse_end_time
  14 #define MET_FUSE_IOLOG_START()  get_monotonic_boottime(&met_fuse_start_time)
  15 #define MET_FUSE_IOLOG_END()    get_monotonic_boottime(&met_fuse_end_time)
  16 #else
  17 #define MET_FUSE_IOLOG_INIT(...)
  18 #define MET_FUSE_IOLOG_START(...)
  19 #define MET_FUSE_IOLOG_END(...)
  20 #endif
  21
  22
  23 #ifdef FUSEIO_TRACE
  24 #include <linux/sched.h>
  25 #include <linux/xlog.h>
  26 #include <linux/kthread.h>
  27
  28 extern void fuse_time_diff(struct timespec *start,
  29     struct timespec *end,
  30     struct timespec *diff);
  31
  32 extern void fuse_iolog_add(__u32 io_bytes, int type,
  33     struct timespec *start,
  34     struct timespec *end);
  35
  36 extern __u32 fuse_iolog_timeus_diff(struct timespec *start,
  37     struct timespec *end);
  38
  39 extern void fuse_iolog_exit(void);
  40 extern void fuse_iolog_init(void);
  41
  42 struct fuse_rw_info
  43 {
  44     __u32  count;
  45     __u32  bytes;
  46     __u32  us;
  47 };
  48
  49 struct fuse_proc_info
  50 {
  51     pid_t pid;
  52     __u32 valid;
  53     int misc_type;
  54     struct fuse_rw_info read;
  55     struct fuse_rw_info write;
  56     struct fuse_rw_info misc;
  57 };
  58
  59 #define FUSE_IOLOG_MAX     12
  60 #define FUSE_IOLOG_BUFLEN  512
  61 #define FUSE_IOLOG_LATENCY 1
  62
  63 #define FUSE_IOLOG_INIT()   struct timespec _tstart, _tend
  64 #define FUSE_IOLOG_START()  get_monotonic_boottime(&_tstart)
  65 #define FUSE_IOLOG_END()    get_monotonic_boottime(&_tend)
  66 #define FUSE_IOLOG_US()     fuse_iolog_timeus_diff(&_tstart, &_tend)
  67 #define FUSE_IOLOG_PRINT(iobytes, type)  fuse_iolog_add(iobytes, type, &_tstart, &_tend)
  68
  69 #else
  70
  71 #define FUSE_IOLOG_INIT(...)
  72 #define FUSE_IOLOG_START(...)
  73 #define FUSE_IOLOG_END(...)
  74 #define FUSE_IOLOG_PRINT(...)
  75 #define fuse_iolog_init(...)
  76 #define fuse_iolog_exit(...)
  77
  78 #endif
  79
  80 #endif