"keep_bio_blkcg" is used to control whether or not dm-thin needs to save the original blkcg of bio
Signed-off-by: Hou Tao <[email protected]> --- drivers/md/dm-thin.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index d1c05c1..8178ee8 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -211,6 +211,7 @@ struct pool_features { bool discard_enabled:1; bool discard_passdown:1; bool error_if_no_space:1; + bool keep_bio_blkcg:1; }; struct thin_c; @@ -277,6 +278,7 @@ struct pool { static enum pool_mode get_pool_mode(struct pool *pool); static void metadata_operation_failed(struct pool *pool, const char *op, int r); +static bool keep_pool_bio_blkcg(struct pool *pool); /* * Target context for a pool. @@ -2390,6 +2392,11 @@ static void noflush_work(struct thin_c *tc, void (*fn)(struct work_struct *)) /*----------------------------------------------------------------*/ +static bool keep_pool_bio_blkcg(struct pool *pool) +{ + return pool->pf.keep_bio_blkcg; +} + static enum pool_mode get_pool_mode(struct pool *pool) { return pool->pf.mode; -- 2.5.0 -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
