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bcache: check and set sync status on cache's in-memory super block

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Currently the cache's sync status is checked and set on cache set's in-
memory partial super block. After removing the embedded struct cache_sb
from cache set and reference cache's in-memory super block from struct
cache_set, the sync status can set and check directly on cache's super
block.

This patch checks and sets the cache sync status directly on cache's
in-memory super block. This is a preparation for later removing embedded
struct cache_sb from struct cache_set.

Signed-off-by: Coly Li <colyli@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Coly Li
2020-10-01 14:50:55 +08:00
committed by Jens Axboe
parent ebaa1ac12b
commit 6f9414e0f6
4 changed files with 7 additions and 10 deletions
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drivers/md/bcache/sysfs.c
+3 -3
View File
@@ -711,7 +711,7 @@ SHOW(__bch_cache_set)
{
struct cache_set *c = container_of(kobj, struct cache_set, kobj);
sysfs_print(synchronous, CACHE_SYNC(&c->sb));
sysfs_print(synchronous, CACHE_SYNC(&c->cache->sb));
sysfs_print(journal_delay_ms, c->journal_delay_ms);
sysfs_hprint(bucket_size, bucket_bytes(c->cache));
sysfs_hprint(block_size, block_bytes(c->cache));
@@ -812,8 +812,8 @@ STORE(__bch_cache_set)
if (attr == &sysfs_synchronous) {
bool sync = strtoul_or_return(buf);
if (sync != CACHE_SYNC(&c->sb)) {
SET_CACHE_SYNC(&c->sb, sync);
if (sync != CACHE_SYNC(&c->cache->sb)) {
SET_CACHE_SYNC(&c->cache->sb, sync);
bcache_write_super(c);
}
}