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| author |   Kent Overstreet <kmo@daterainc.com> | 2014-03-13 13:46:29 -0700 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-03-18 12:22:36 -0700 |
| commit | 4fe6a816707aace9e8e297b708411c5930537793 (patch) | |
| tree | 1316f5df799ba13ca96adcf47d87656fdebf394d /drivers/md/bcache/alloc.c | |
| parent | bcache: Add bch_keylist_init_single() (diff) | |
| download | linux-dev-4fe6a816707aace9e8e297b708411c5930537793.tar.xz linux-dev-4fe6a816707aace9e8e297b708411c5930537793.zip | |
bcache: Add a real GC_MARK_RECLAIMABLE
This means the garbage collection code can better check for data and metadata
pointers to the same buckets.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'drivers/md/bcache/alloc.c')
| -rw-r--r-- | drivers/md/bcache/alloc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c index a3e1427945f2..5ba4eaea57f4 100644 --- a/drivers/md/bcache/alloc.c +++ b/drivers/md/bcache/alloc.c @@ -155,7 +155,8 @@ add: static bool can_invalidate_bucket(struct cache *ca, struct bucket *b) { - return GC_MARK(b) == GC_MARK_RECLAIMABLE && + return (!GC_MARK(b) || + GC_MARK(b) == GC_MARK_RECLAIMABLE) && !atomic_read(&b->pin) && can_inc_bucket_gen(b); } @@ -475,7 +476,7 @@ void bch_bucket_free(struct cache_set *c, struct bkey *k) for (i = 0; i < KEY_PTRS(k); i++) { struct bucket *b = PTR_BUCKET(c, k, i); - SET_GC_MARK(b, GC_MARK_RECLAIMABLE); + SET_GC_MARK(b, 0); SET_GC_SECTORS_USED(b, 0); bch_bucket_add_unused(PTR_CACHE(c, k, i), b); } |