diff options
| author |   Kent Overstreet <koverstreet@google.com> | 2013-06-05 06:21:07 -0700 |
|---|---|---|
| committer | Kent Overstreet <koverstreet@google.com> | 2013-06-26 21:57:23 -0700 |
| commit | 279afbad4e54acbd61bf88a54a73af3bbfdeb5dd (patch) | |
| tree | aefebaa3a7f54049904a275ca3035301603a9be1 /drivers/md/bcache/bcache.h | |
| parent | bcache: Initialize sectors_dirty when attaching (diff) | |
| download | linux-dev-279afbad4e54acbd61bf88a54a73af3bbfdeb5dd.tar.xz linux-dev-279afbad4e54acbd61bf88a54a73af3bbfdeb5dd.zip | |
bcache: Track dirty data by stripe
To make background writeback aware of raid5/6 stripes, we first need to
track the amount of dirty data within each stripe - we do this by
breaking up the existing sectors_dirty into per stripe atomic_ts
Signed-off-by: Kent Overstreet <koverstreet@google.com>
Diffstat (limited to 'drivers/md/bcache/bcache.h')
| -rw-r--r-- | drivers/md/bcache/bcache.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index d099d8894c2f..dbddef0cdb59 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -437,7 +437,10 @@ struct bcache_device { /* If nonzero, we're detaching/unregistering from cache set */ atomic_t detaching; - atomic_long_t sectors_dirty; + uint64_t nr_stripes; + unsigned stripe_size_bits; + atomic_t *stripe_sectors_dirty; + unsigned long sectors_dirty_last; long sectors_dirty_derivative; @@ -1159,9 +1162,6 @@ static inline void wake_up_allocators(struct cache_set *c) /* Forward declarations */ -void bch_writeback_queue(struct cached_dev *); -void bch_writeback_add(struct cached_dev *, unsigned); - void bch_count_io_errors(struct cache *, int, const char *); void bch_bbio_count_io_errors(struct cache_set *, struct bio *, int, const char *); @@ -1224,8 +1224,6 @@ void bch_cache_set_stop(struct cache_set *); struct cache_set *bch_cache_set_alloc(struct cache_sb *); void bch_btree_cache_free(struct cache_set *); int bch_btree_cache_alloc(struct cache_set *); -void bch_sectors_dirty_init(struct cached_dev *); -void bch_cached_dev_writeback_init(struct cached_dev *); void bch_moving_init_cache_set(struct cache_set *); int bch_cache_allocator_start(struct cache *ca); |