[PATCH 10/19] bcache: initialize stripe_sectors_dirty correctly for thin flash device

bcache
2017-06-30T20:43:56Z

From: Tang Junhui <tang.junhui@zte.com.cn>

Thin flash device does not initialize stripe_sectors_dirty correctly, this
patch fixes this issue.

Signed-off-by: Tang Junhui <tang.junhui@zte.com.cn>
Cc: stable@vger.kernel.org
---
drivers/md/bcache/super.c | 3 ++-
drivers/md/bcache/writeback.c | 8 ++++----
drivers/md/bcache/writeback.h | 2 +-
3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 1f84791..e06641e 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1030,7 +1030,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c)
}

if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) {
- bch_sectors_dirty_init(dc);
+ bch_sectors_dirty_init(&dc->disk);
atomic_set(&dc->has_dirty, 1);
atomic_inc(&dc->count);
bch_writeback_queue(dc);
@@ -1232,6 +1232,7 @@ static int flash_dev_run(struct cache_set *c, struct uuid_entry *u)
goto err;

bcache_device_attach(d, c, u - c->uuids);
+ bch_sectors_dirty_init(d);
bch_flash_dev_request_init(d);
add_disk(d->disk);

diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 3d463f0..4ac8b13 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -482,17 +482,17 @@ static int sectors_dirty_init_fn(struct btree_op *_op, struct btree *b,
return MAP_CONTINUE;
}

-void bch_sectors_dirty_init(struct cached_dev *dc)
+void bch_sectors_dirty_init(struct bcache_device *d)
{
struct sectors_dirty_init op;

bch_btree_op_init(&op.op, -1);
- op.inode = dc->disk.id;
+ op.inode = d->id;

- bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0),
+ bch_btree_map_keys(&op.op, d->c, &KEY(op.inode, 0, 0),
sectors_dirty_init_fn, 0);

- dc->disk.sectors_dirty_last = bcache_dev_sectors_dirty(&dc->disk);
+ d->sectors_dirty_last = bcache_dev_sectors_dirty(d);
}

void bch_cached_dev_writeback_init(struct cached_dev *dc)
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index ea2f92e..c2ab4b4 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -109,7 +109,7 @@ static inline void bch_writeback_add(struct cached_dev *dc)

void bcache_dev_sectors_dirty_add(struct cache_set *, unsigned, uint64_t, int);

-void bch_sectors_dirty_init(struct cached_dev *dc);
+void bch_sectors_dirty_init(struct bcache_device *);
void bch_cached_dev_writeback_init(struct cached_dev *);
int bch_cached_dev_writeback_start(struct cached_dev *);

--
1.8.3.1