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bcache: add a comment in super.c 

This patch adds a line of code comment in super.c:register_bdev(), to
make code to be more comprehensible.

Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Coly Li 2018-08-09 15:48:45 +08:00 committed by Jens Axboe
parent c2e8dcf7fa
commit e57fd74684
1 changed files with 1 additions and 0 deletions
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drivers/md/bcache/super.c
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@ -1291,6 +1291,7 @@ static void register_bdev(struct cache_sb *sb, struct page *sb_page,
pr_info("registered backing device %s", dc->backing_dev_name); pr_info("registered backing device %s", dc->backing_dev_name);
list_add(&dc->list, &uncached_devices); list_add(&dc->list, &uncached_devices);
/* attach to a matched cache set if it exists */
list_for_each_entry(c, &bch_cache_sets, list) list_for_each_entry(c, &bch_cache_sets, list)
bch_cached_dev_attach(dc, c, NULL); bch_cached_dev_attach(dc, c, NULL);