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authorColy Li <colyli@suse.de>2019-04-24 19:48:35 +0300
committerJens Axboe <axboe@kernel.dk>2019-04-24 19:56:28 +0300
commit2d17456eb1cc78803b999fdd503c2dbd42a7d3da (patch)
tree0b6c5d67389fbeb3ff2ca17349fae2f9ba6eda94
parentce3e4cfb59cb382f8e5ce359238aa580d4ae7778 (diff)
downloadlinux-2d17456eb1cc78803b999fdd503c2dbd42a7d3da.tar.xz
bcache: add comments for kobj release callback routine
Bcache has several routines to release resources in implicit way, they are called when the associated kobj released. This patch adds code comments to notice when and which release callback will be called, - When dc->disk.kobj released: void bch_cached_dev_release(struct kobject *kobj) - When d->kobj released: void bch_flash_dev_release(struct kobject *kobj) - When c->kobj released: void bch_cache_set_release(struct kobject *kobj) - When ca->kobj released void bch_cache_release(struct kobject *kobj) Signed-off-by: Coly Li <colyli@suse.de> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/md/bcache/super.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 8c7fdada0acf..f8d80adcafec 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1172,6 +1172,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c,
return 0;
}
+/* when dc->disk.kobj released */
void bch_cached_dev_release(struct kobject *kobj)
{
struct cached_dev *dc = container_of(kobj, struct cached_dev,
@@ -1324,6 +1325,7 @@ err:
/* Flash only volumes */
+/* When d->kobj released */
void bch_flash_dev_release(struct kobject *kobj)
{
struct bcache_device *d = container_of(kobj, struct bcache_device,
@@ -1494,6 +1496,7 @@ bool bch_cache_set_error(struct cache_set *c, const char *fmt, ...)
return true;
}
+/* When c->kobj released */
void bch_cache_set_release(struct kobject *kobj)
{
struct cache_set *c = container_of(kobj, struct cache_set, kobj);
@@ -2021,6 +2024,7 @@ err:
/* Cache device */
+/* When ca->kobj released */
void bch_cache_release(struct kobject *kobj)
{
struct cache *ca = container_of(kobj, struct cache, kobj);