kernel/dlimit.h

   1 #ifndef _VX_DLIMIT_H
   2 #define _VX_DLIMIT_H
   3
   4 #include "switch.h"
   5
   6 #define CDLIM_UNSET             (0ULL)
   7 #define CDLIM_INFINITY          (~0ULL)
   8 #define CDLIM_KEEP              (~1ULL)
   9
  10
  11 #ifdef  __KERNEL__
  12
  13 #include <linux/spinlock.h>
  14
  15 struct super_block;
  16
  17 struct dl_info {
  18         struct hlist_node dl_hlist;             /* linked list of contexts */
  19         struct rcu_head dl_rcu;                 /* the rcu head */
  20         xid_t dl_xid;                           /* context id */
  21         atomic_t dl_usecnt;                     /* usage count */
  22         atomic_t dl_refcnt;                     /* reference count */
  23
  24         struct super_block *dl_sb;              /* associated superblock */
  25
  26         spinlock_t dl_lock;                     /* protect the values */
  27
  28         uint64_t dl_space_used;                 /* used space in bytes */
  29         uint64_t dl_space_total;                /* maximum space in bytes */
  30         uint32_t dl_inodes_used;                /* used inodes */
  31         uint32_t dl_inodes_total;               /* maximum inodes */
  32
  33         unsigned int dl_nrlmult;                /* non root limit mult */
  34 };
  35
  36 struct rcu_head;
  37
  38 extern void rcu_free_dl_info(struct rcu_head *);
  39 extern void unhash_dl_info(struct dl_info *);
  40
  41 extern struct dl_info *locate_dl_info(struct super_block *, xid_t);
  42
  43
  44 struct kstatfs;
  45
  46 extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
  47
  48 typedef uint64_t dlsize_t;
  49
  50 #endif  /* __KERNEL__ */
  51 #else   /* _VX_DLIMIT_H */
  52 #warning duplicate inclusion
  53 #endif  /* _VX_DLIMIT_H */