diff options
Diffstat (limited to 'include/sys/dmu_zfetch.h')
| -rw-r--r-- | include/sys/dmu_zfetch.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/sys/dmu_zfetch.h b/include/sys/dmu_zfetch.h index f00e13cf0..322472fb1 100644 --- a/include/sys/dmu_zfetch.h +++ b/include/sys/dmu_zfetch.h @@ -45,18 +45,24 @@ typedef struct zfetch { int zf_numstreams; /* number of zstream_t's */ } zfetch_t; +typedef struct zsrange { + uint16_t start; + uint16_t end; +} zsrange_t; + +#define ZFETCH_RANGES 9 /* Fits zstream_t into 128 bytes */ + typedef struct zstream { + list_node_t zs_node; /* link for zf_stream */ uint64_t zs_blkid; /* expect next access at this blkid */ + uint_t zs_atime; /* time last prefetch issued */ + zsrange_t zs_ranges[ZFETCH_RANGES]; /* ranges from future */ unsigned int zs_pf_dist; /* data prefetch distance in bytes */ unsigned int zs_ipf_dist; /* L1 prefetch distance in bytes */ uint64_t zs_pf_start; /* first data block to prefetch */ uint64_t zs_pf_end; /* data block to prefetch up to */ uint64_t zs_ipf_start; /* first data block to prefetch L1 */ uint64_t zs_ipf_end; /* data block to prefetch L1 up to */ - - list_node_t zs_node; /* link for zf_stream */ - hrtime_t zs_atime; /* time last prefetch issued */ - zfetch_t *zs_fetch; /* parent fetch */ boolean_t zs_missed; /* stream saw cache misses */ boolean_t zs_more; /* need more distant prefetch */ zfs_refcount_t zs_callers; /* number of pending callers */ @@ -74,7 +80,7 @@ void dmu_zfetch_init(zfetch_t *, struct dnode *); void dmu_zfetch_fini(zfetch_t *); zstream_t *dmu_zfetch_prepare(zfetch_t *, uint64_t, uint64_t, boolean_t, boolean_t); -void dmu_zfetch_run(zstream_t *, boolean_t, boolean_t); +void dmu_zfetch_run(zfetch_t *, zstream_t *, boolean_t, boolean_t); void dmu_zfetch(zfetch_t *, uint64_t, uint64_t, boolean_t, boolean_t, boolean_t); |