LCOV - code coverage report
Current view: top level - lkbce/include/linux - mbcache.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1 1 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : /*
       2             :   File: linux/mbcache.h
       3             : 
       4             :   (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
       5             : */
       6             : 
       7             : /* Hardwire the number of additional indexes */
       8             : #define MB_CACHE_INDEXES_COUNT 1
       9             : 
      10             : struct mb_cache_entry {
      11             :         struct list_head                e_lru_list;
      12             :         struct mb_cache                 *e_cache;
      13             :         unsigned short                  e_used;
      14             :         unsigned short                  e_queued;
      15             :         struct block_device             *e_bdev;
      16             :         sector_t                        e_block;
      17             :         struct list_head                e_block_list;
      18             :         struct {
      19             :                 struct list_head        o_list;
      20             :                 unsigned int            o_key;
      21             :         } e_indexes[0];
      22             : };
      23           1 : 
      24             : struct mb_cache_op {
      25             :         int (*free)(struct mb_cache_entry *, gfp_t);
      26             : };
      27             : 
      28             : /* Functions on caches */
      29             : 
      30             : struct mb_cache * mb_cache_create(const char *, struct mb_cache_op *, size_t,
      31             :                                   int, int);
      32             : void mb_cache_shrink(struct block_device *);
      33             : void mb_cache_destroy(struct mb_cache *);
      34             : 
      35             : /* Functions on cache entries */
      36             : 
      37             : struct mb_cache_entry *mb_cache_entry_alloc(struct mb_cache *, gfp_t);
      38             : int mb_cache_entry_insert(struct mb_cache_entry *, struct block_device *,
      39             :                           sector_t, unsigned int[]);
      40             : void mb_cache_entry_release(struct mb_cache_entry *);
      41             : void mb_cache_entry_free(struct mb_cache_entry *);
      42             : struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *,
      43             :                                           struct block_device *,
      44             :                                           sector_t);
      45             : #if !defined(MB_CACHE_INDEXES_COUNT) || (MB_CACHE_INDEXES_COUNT > 0)
      46             : struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache, int,
      47             :                                                  struct block_device *, 
      48             :                                                  unsigned int);
      49             : struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *, int,
      50             :                                                 struct block_device *, 
      51             :                                                 unsigned int);
      52             : #endif

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