diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/btree.c | 5 | ||||
| -rw-r--r-- | drivers/md/dm-bufio.c | 7 | ||||
| -rw-r--r-- | drivers/md/dm-thin-metadata.c | 6 | ||||
| -rw-r--r-- | drivers/md/dm.c | 3 | ||||
| -rw-r--r-- | drivers/md/persistent-data/dm-btree.c | 19 |
5 files changed, 18 insertions, 22 deletions
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 2efdce07247c..cac297f8170e 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -803,7 +803,10 @@ int bch_btree_cache_alloc(struct cache_set *c) c->shrink.scan_objects = bch_mca_scan; c->shrink.seeks = 4; c->shrink.batch = c->btree_pages * 2; - register_shrinker(&c->shrink); + + if (register_shrinker(&c->shrink)) + pr_warn("bcache: %s: could not register shrinker", + __func__); return 0; } diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 7643f72adb1c..3ec647e8b9c6 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1554,7 +1554,8 @@ static unsigned long __scan(struct dm_bufio_client *c, unsigned long nr_to_scan, int l; struct dm_buffer *b, *tmp; unsigned long freed = 0; - unsigned long count = nr_to_scan; + unsigned long count = c->n_buffers[LIST_CLEAN] + + c->n_buffers[LIST_DIRTY]; unsigned long retain_target = get_retain_buffers(c); for (l = 0; l < LIST_SIZE; l++) { @@ -1591,6 +1592,7 @@ dm_bufio_shrink_count(struct shrinker *shrink, struct shrink_control *sc) { struct dm_bufio_client *c; unsigned long count; + unsigned long retain_target; c = container_of(shrink, struct dm_bufio_client, shrinker); if (sc->gfp_mask & __GFP_FS) @@ -1599,8 +1601,9 @@ dm_bufio_shrink_count(struct shrinker *shrink, struct shrink_control *sc) return 0; count = c->n_buffers[LIST_CLEAN] + c->n_buffers[LIST_DIRTY]; + retain_target = get_retain_buffers(c); dm_bufio_unlock(c); - return count; + return (count < retain_target) ? 0 : (count - retain_target); } /* diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 4477bf930cf4..e976f4f39334 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -81,10 +81,14 @@ #define SECTOR_TO_BLOCK_SHIFT 3 /* + * For btree insert: * 3 for btree insert + * 2 for btree lookup used within space map + * For btree remove: + * 2 for shadow spine + + * 4 for rebalance 3 child node */ -#define THIN_MAX_CONCURRENT_LOCKS 5 +#define THIN_MAX_CONCURRENT_LOCKS 6 /* This should be plenty */ #define SPACE_MAP_ROOT_SIZE 128 diff --git a/drivers/md/dm.c b/drivers/md/dm.c index c5522551122f..2ffe7db75acb 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -809,7 +809,8 @@ static void dec_pending(struct dm_io *io, int error) } else { /* done with normal IO or empty flush */ trace_block_bio_complete(md->queue, bio, io_error); - bio->bi_error = io_error; + if (io_error) + bio->bi_error = io_error; bio_endio(bio); } } diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c index 7a75b5010f73..e4ececd3df00 100644 --- a/drivers/md/persistent-data/dm-btree.c +++ b/drivers/md/persistent-data/dm-btree.c @@ -678,23 +678,8 @@ static int btree_split_beneath(struct shadow_spine *s, uint64_t key) pn->keys[1] = rn->keys[0]; memcpy_disk(value_ptr(pn, 1), &val, sizeof(__le64)); - /* - * rejig the spine. This is ugly, since it knows too - * much about the spine - */ - if (s->nodes[0] != new_parent) { - unlock_block(s->info, s->nodes[0]); - s->nodes[0] = new_parent; - } - if (key < le64_to_cpu(rn->keys[0])) { - unlock_block(s->info, right); - s->nodes[1] = left; - } else { - unlock_block(s->info, left); - s->nodes[1] = right; - } - s->count = 2; - + unlock_block(s->info, left); + unlock_block(s->info, right); return 0; } |