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authorMatthew Ahrens <[email protected]>2014-09-13 15:40:05 +0200
committerBrian Behlendorf <[email protected]>2014-10-23 15:30:32 -0700
commit9635861742c6ac334877f944e17948aa11c2e57a (patch)
tree2fe4744c568f26163707363d6c6c3cb22eb627ae /include/sys/space_map.h
parentb02fe35d3743c92e26f4158938e94093a2309a92 (diff)
Illumos 5164-5165 - space map fixes
5164 space_map_max_blksz causes panic, does not work 5165 zdb fails assertion when run on pool with recently-enabled space map_histogram feature Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5164 https://www.illumos.org/issues/5165 https://github.com/illumos/illumos-gate/commit/b1be289 Porting Notes: The metaslab_fragmentation() hunk was dropped from this patch because it was already resolved by commit 8b0a084. The comment modified in metaslab.c was updated to use the correct variable name, space_map_blksz. The upstream commit incorrectly used space_map_blksize. Ported by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2697
Diffstat (limited to 'include/sys/space_map.h')
-rw-r--r--include/sys/space_map.h11
1 files changed, 0 insertions, 11 deletions
diff --git a/include/sys/space_map.h b/include/sys/space_map.h
index 67fa2767b..a59e6d37d 100644
--- a/include/sys/space_map.h
+++ b/include/sys/space_map.h
@@ -133,17 +133,6 @@ typedef enum {
SM_FREE
} maptype_t;
-/*
- * The data for a given space map can be kept on blocks of any size.
- * Larger blocks entail fewer i/o operations, but they also cause the
- * DMU to keep more data in-core, and also to waste more i/o bandwidth
- * when only a few blocks have changed since the last transaction group.
- * Rather than having a fixed block size for all space maps the block size
- * can adjust as needed (see space_map_max_blksz). Set the initial block
- * size for the space map to 4k.
- */
-#define SPACE_MAP_INITIAL_BLOCKSIZE (1ULL << 12)
-
int space_map_load(space_map_t *sm, range_tree_t *rt, maptype_t maptype);
void space_map_histogram_clear(space_map_t *sm);