diff options
| author | George Amanakis <[email protected]> | 2021-11-11 21:52:16 +0100 |
|---|---|---|
| committer | Tony Hutter <[email protected]> | 2022-09-14 11:27:00 -0700 |
| commit | 8bd3dca9bf3e9a4315d58be316bcfaf8e76c6a6a (patch) | |
| tree | 71709914cb18a70dd9c5744290c05aa089b36576 /include/sys | |
| parent | c8f795ba53acfe0239bfa5d75f64dce8e390a992 (diff) | |
Introduce a tunable to exclude special class buffers from L2ARC
Special allocation class or dedup vdevs may have roughly the same
performance as L2ARC vdevs. Introduce a new tunable to exclude those
buffers from being cacheable on L2ARC.
Reviewed-by: Don Brady <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: George Amanakis <[email protected]>
Closes #11761
Closes #12285
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/arc.h | 1 | ||||
| -rw-r--r-- | include/sys/dbuf.h | 11 | ||||
| -rw-r--r-- | include/sys/dmu_objset.h | 4 |
3 files changed, 2 insertions, 14 deletions
diff --git a/include/sys/arc.h b/include/sys/arc.h index a3241f368..5d8176894 100644 --- a/include/sys/arc.h +++ b/include/sys/arc.h @@ -85,6 +85,7 @@ typedef void arc_prune_func_t(int64_t bytes, void *priv); /* Shared module parameters */ extern int zfs_arc_average_blocksize; +extern int l2arc_exclude_special; /* generic arc_done_func_t's which you can use */ arc_read_done_func_t arc_bcopy_func; diff --git a/include/sys/dbuf.h b/include/sys/dbuf.h index 93d80066b..2e7385113 100644 --- a/include/sys/dbuf.h +++ b/include/sys/dbuf.h @@ -441,16 +441,7 @@ dbuf_find_dirty_eq(dmu_buf_impl_t *db, uint64_t txg) (dbuf_is_metadata(_db) && \ ((_db)->db_objset->os_primary_cache == ZFS_CACHE_METADATA))) -#define DBUF_IS_L2CACHEABLE(_db) \ - ((_db)->db_objset->os_secondary_cache == ZFS_CACHE_ALL || \ - (dbuf_is_metadata(_db) && \ - ((_db)->db_objset->os_secondary_cache == ZFS_CACHE_METADATA))) - -#define DNODE_LEVEL_IS_L2CACHEABLE(_dn, _level) \ - ((_dn)->dn_objset->os_secondary_cache == ZFS_CACHE_ALL || \ - (((_level) > 0 || \ - DMU_OT_IS_METADATA((_dn)->dn_handle->dnh_dnode->dn_type)) && \ - ((_dn)->dn_objset->os_secondary_cache == ZFS_CACHE_METADATA))) +boolean_t dbuf_is_l2cacheable(dmu_buf_impl_t *db); #ifdef ZFS_DEBUG diff --git a/include/sys/dmu_objset.h b/include/sys/dmu_objset.h index e89ee64ea..7ade2dc91 100644 --- a/include/sys/dmu_objset.h +++ b/include/sys/dmu_objset.h @@ -200,10 +200,6 @@ struct objset { #define DMU_GROUPUSED_DNODE(os) ((os)->os_groupused_dnode.dnh_dnode) #define DMU_PROJECTUSED_DNODE(os) ((os)->os_projectused_dnode.dnh_dnode) -#define DMU_OS_IS_L2CACHEABLE(os) \ - ((os)->os_secondary_cache == ZFS_CACHE_ALL || \ - (os)->os_secondary_cache == ZFS_CACHE_METADATA) - /* called from zpl */ int dmu_objset_hold(const char *name, void *tag, objset_t **osp); int dmu_objset_hold_flags(const char *name, boolean_t decrypt, void *tag, |