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authorChristoph Hellwig <hch@lst.de>2020-06-27 09:31:47 +0200
committerJens Axboe <axboe@kernel.dk>2020-06-29 09:09:08 -0600
commitdb9819c76c1fd48c30699381c94bba5c95dd467e (patch)
tree825e36ac36ed65f84cb81eef8218a7194182396a /block/bio.c
parent4ef2c5c2462d59024adfa090af763a33dcff2f1a (diff)
downloadlinux-db9819c76c1fd48c30699381c94bba5c95dd467e.tar.gz
block: remove bio_disassociate_blkg
bio_disassociate_blkg has two callers, of which one immediately assigns
a new value to >bi_blkg.  Just open code the function in the two callers.

Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
-rw-r--r--block/bio.c27
1 files changed, 8 insertions, 19 deletions
diff --git a/block/bio.c b/block/bio.c
index fb5533416fa6..8aef4460b32e 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -234,8 +234,12 @@ fallback:
 
 void bio_uninit(struct bio *bio)
 {
-	bio_disassociate_blkg(bio);
-
+#ifdef CONFIG_BLK_CGROUP
+	if (bio->bi_blkg) {
+		blkg_put(bio->bi_blkg);
+		bio->bi_blkg = NULL;
+	}
+#endif
 	if (bio_integrity(bio))
 		bio_integrity_free(bio);
 
@@ -1626,21 +1630,6 @@ EXPORT_SYMBOL(bioset_init_from_src);
 #ifdef CONFIG_BLK_CGROUP
 
 /**
- * bio_disassociate_blkg - puts back the blkg reference if associated
- * @bio: target bio
- *
- * Helper to disassociate the blkg from @bio if a blkg is associated.
- */
-void bio_disassociate_blkg(struct bio *bio)
-{
-	if (bio->bi_blkg) {
-		blkg_put(bio->bi_blkg);
-		bio->bi_blkg = NULL;
-	}
-}
-EXPORT_SYMBOL_GPL(bio_disassociate_blkg);
-
-/**
  * __bio_associate_blkg - associate a bio with the a blkg
  * @bio: target bio
  * @blkg: the blkg to associate
@@ -1656,8 +1645,8 @@ EXPORT_SYMBOL_GPL(bio_disassociate_blkg);
  */
 static void __bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg)
 {
-	bio_disassociate_blkg(bio);
-
+	if (bio->bi_blkg)
+		blkg_put(bio->bi_blkg);
 	bio->bi_blkg = blkg_tryget_closest(blkg);
 }