diff options
| -rw-r--r-- | module/zfs/metaslab.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/module/zfs/metaslab.c b/module/zfs/metaslab.c index 1722a53fc..56c46100d 100644 --- a/module/zfs/metaslab.c +++ b/module/zfs/metaslab.c @@ -30,6 +30,8 @@ #include <sys/vdev_impl.h> #include <sys/zio.h> +#define WITH_NDF_BLOCK_ALLOCATOR + uint64_t metaslab_aliquot = 512ULL << 10; uint64_t metaslab_gang_bang = SPA_MAXBLOCKSIZE + 1; /* force gang blocks */ @@ -350,6 +352,9 @@ metaslab_segsize_compare(const void *x1, const void *x2) return (0); } +#if defined(WITH_FF_BLOCK_ALLOCATOR) || \ + defined(WITH_DF_BLOCK_ALLOCATOR) || \ + defined(WITH_CDF_BLOCK_ALLOCATOR) /* * This is a helper function that can be used by the allocator to find * a suitable block to allocate. This will search the specified AVL @@ -389,6 +394,7 @@ metaslab_block_picker(avl_tree_t *t, uint64_t *cursor, uint64_t size, *cursor = 0; return (metaslab_block_picker(t, cursor, size, align)); } +#endif /* WITH_FF/DF/CDF_BLOCK_ALLOCATOR */ static void metaslab_pp_load(space_map_t *sm) @@ -452,6 +458,7 @@ metaslab_pp_maxsize(space_map_t *sm) return (ss->ss_end - ss->ss_start); } +#if defined(WITH_FF_BLOCK_ALLOCATOR) /* * ========================================================================== * The first-fit block allocator @@ -484,6 +491,10 @@ static space_map_ops_t metaslab_ff_ops = { metaslab_ff_fragmented }; +space_map_ops_t *zfs_metaslab_ops = &metaslab_ff_ops; +#endif /* WITH_FF_BLOCK_ALLOCATOR */ + +#if defined(WITH_DF_BLOCK_ALLOCATOR) /* * ========================================================================== * Dynamic block allocator - @@ -543,11 +554,15 @@ static space_map_ops_t metaslab_df_ops = { metaslab_df_fragmented }; +space_map_ops_t *zfs_metaslab_ops = &metaslab_df_ops; +#endif /* WITH_DF_BLOCK_ALLOCATOR */ + /* * ========================================================================== * Other experimental allocators * ========================================================================== */ +#if defined(WITH_CDF_BLOCK_ALLOCATOR) static uint64_t metaslab_cdf_alloc(space_map_t *sm, uint64_t size) { @@ -607,6 +622,10 @@ static space_map_ops_t metaslab_cdf_ops = { metaslab_cdf_fragmented }; +space_map_ops_t *zfs_metaslab_ops = &metaslab_cdf_ops; +#endif /* WITH_CDF_BLOCK_ALLOCATOR */ + +#if defined(WITH_NDF_BLOCK_ALLOCATOR) uint64_t metaslab_ndf_clump_shift = 4; static uint64_t @@ -672,6 +691,7 @@ static space_map_ops_t metaslab_ndf_ops = { }; space_map_ops_t *zfs_metaslab_ops = &metaslab_ndf_ops; +#endif /* WITH_NDF_BLOCK_ALLOCATOR */ /* * ========================================================================== |