drivers/staging/zcache/ramster/debug.c

   1 #include <linux/atomic.h>
   2 #include "debug.h"
   3
   4 #ifdef CONFIG_DEBUG_FS
   5 #include <linux/debugfs.h>
   6 #define zdfs    debugfs_create_size_t
   7 #define zdfs64  debugfs_create_u64
   8
   9 ssize_t ramster_eph_pages_remoted;
  10 ssize_t ramster_pers_pages_remoted;
  11 ssize_t ramster_eph_pages_remote_failed;
  12 ssize_t ramster_pers_pages_remote_failed;
  13 ssize_t ramster_remote_eph_pages_succ_get;
  14 ssize_t ramster_remote_pers_pages_succ_get;
  15 ssize_t ramster_remote_eph_pages_unsucc_get;
  16 ssize_t ramster_remote_pers_pages_unsucc_get;
  17 ssize_t ramster_pers_pages_remote_nomem;
  18 ssize_t ramster_remote_objects_flushed;
  19 ssize_t ramster_remote_object_flushes_failed;
  20 ssize_t ramster_remote_pages_flushed;
  21 ssize_t ramster_remote_page_flushes_failed;
  22
  23 int __init ramster_debugfs_init(void)
  24 {
  25         struct dentry *root = debugfs_create_dir("ramster", NULL);
  26         if (root == NULL)
  27                 return -ENXIO;
  28
  29         zdfs("eph_pages_remoted", S_IRUGO, root, &ramster_eph_pages_remoted);
  30         zdfs("pers_pages_remoted", S_IRUGO, root, &ramster_pers_pages_remoted);
  31         zdfs("eph_pages_remote_failed", S_IRUGO, root,
  32                 &ramster_eph_pages_remote_failed);
  33         zdfs("pers_pages_remote_failed", S_IRUGO, root,
  34                 &ramster_pers_pages_remote_failed);
  35         zdfs("remote_eph_pages_succ_get", S_IRUGO, root,
  36                 &ramster_remote_eph_pages_succ_get);
  37         zdfs("remote_pers_pages_succ_get", S_IRUGO, root,
  38                 &ramster_remote_pers_pages_succ_get);
  39         zdfs("remote_eph_pages_unsucc_get", S_IRUGO, root,
  40                 &ramster_remote_eph_pages_unsucc_get);
  41         zdfs("remote_pers_pages_unsucc_get", S_IRUGO, root,
  42                 &ramster_remote_pers_pages_unsucc_get);
  43         zdfs("pers_pages_remote_nomem", S_IRUGO, root,
  44                 &ramster_pers_pages_remote_nomem);
  45         zdfs("remote_objects_flushed", S_IRUGO, root,
  46                 &ramster_remote_objects_flushed);
  47         zdfs("remote_pages_flushed", S_IRUGO, root,
  48                 &ramster_remote_pages_flushed);
  49         zdfs("remote_object_flushes_failed", S_IRUGO, root,
  50                 &ramster_remote_object_flushes_failed);
  51         zdfs("remote_page_flushes_failed", S_IRUGO, root,
  52                 &ramster_remote_page_flushes_failed);
  53         zdfs("foreign_eph_pages", S_IRUGO, root,
  54                 &ramster_foreign_eph_pages);
  55         zdfs("foreign_eph_pages_max", S_IRUGO, root,
  56                 &ramster_foreign_eph_pages_max);
  57         zdfs("foreign_pers_pages", S_IRUGO, root,
  58                 &ramster_foreign_pers_pages);
  59         zdfs("foreign_pers_pages_max", S_IRUGO, root,
  60                 &ramster_foreign_pers_pages_max);
  61         return 0;
  62 }
  63 #undef  zdebugfs
  64 #undef  zdfs64
  65 #else
  66 static inline int ramster_debugfs_init(void)
  67 {
  68         return 0;
  69 }
  70 #endif