diff options
| author | Matthew Ahrens <[email protected]> | 2014-09-13 15:40:05 +0200 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-10-23 15:30:32 -0700 |
| commit | 9635861742c6ac334877f944e17948aa11c2e57a (patch) | |
| tree | 2fe4744c568f26163707363d6c6c3cb22eb627ae /include/sys/space_map.h | |
| parent | b02fe35d3743c92e26f4158938e94093a2309a92 (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.h | 11 |
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); |