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| author |   Kent Overstreet <kmo@daterainc.com> | 2014-02-27 17:51:12 -0800 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-03-18 12:24:54 -0700 |
| commit | 3a2fd9d5090b83aab85378a846fa10f39b0b5aa7 (patch) | |
| tree | 13862a06f381010ba9716441d4f844d953472670 /drivers/md/bcache/bcache.h | |
| parent | bcache: Kill unused freelist (diff) | |
| download | linux-dev-3a2fd9d5090b83aab85378a846fa10f39b0b5aa7.tar.xz linux-dev-3a2fd9d5090b83aab85378a846fa10f39b0b5aa7.zip | |
bcache: Kill bucket->gc_gen
gc_gen was a temporary used to recalculate last_gc, but since we only need
bucket->last_gc when gc isn't running (gc_mark_valid = 1), we can just update
last_gc directly.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md/bcache/bcache.h')
| -rw-r--r-- | drivers/md/bcache/bcache.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 200efc1b5cf8..82c9c5d35251 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -196,7 +196,6 @@ struct bucket { uint16_t prio; uint8_t gen; uint8_t last_gc; /* Most out of date gen in the btree */ - uint8_t gc_gen; uint16_t gc_mark; /* Bitfield used by GC. See below for field */ }; @@ -588,7 +587,7 @@ struct cache_set { uint16_t min_prio; /* - * max(gen - gc_gen) for all buckets. When it gets too big we have to gc + * max(gen - last_gc) for all buckets. When it gets too big we have to gc * to keep gens from wrapping around. */ uint8_t need_gc; |