This is a note to let you know that I've just added the patch titled
blk-cgroup: remove open coded blkg_lookup instances
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
blk-cgroup-remove-open-coded-blkg_lookup-instances.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 97f974fe3002c969d06f4b46fd91cac7fddfcb9f
Author: Christoph Hellwig <hch@xxxxxx>
Date: Wed Sep 21 20:04:47 2022 +0200
blk-cgroup: remove open coded blkg_lookup instances
[ Upstream commit 79fcc5be93e5b17a2a5d36553f7a5c1ad9e953b6 ]
Use blkg_lookup instead of open coding it.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Andreas Herrmann <aherrmann@xxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220921180501.1539876-4-hch@xxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Stable-dep-of: 813e693023ba ("blk-iolatency: Fix memory leak on add_disk() failures")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 11f256214928..ee48b6f4d5d4 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -324,7 +324,7 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg,
/* link parent */
if (blkcg_parent(blkcg)) {
- blkg->parent = __blkg_lookup(blkcg_parent(blkcg), q, false);
+ blkg->parent = blkg_lookup(blkcg_parent(blkcg), q);
if (WARN_ON_ONCE(!blkg->parent)) {
ret = -ENODEV;
goto err_put_css;
@@ -412,7 +412,7 @@ static struct blkcg_gq *blkg_lookup_create(struct blkcg *blkcg,
struct blkcg_gq *ret_blkg = q->root_blkg;
while (parent) {
- blkg = __blkg_lookup(parent, q, false);
+ blkg = blkg_lookup(parent, q);
if (blkg) {
/* remember closest blkg */
ret_blkg = blkg;
@@ -724,7 +724,7 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol,
struct blkcg_gq *new_blkg;
parent = blkcg_parent(blkcg);
- while (parent && !__blkg_lookup(parent, q, false)) {
+ while (parent && !blkg_lookup(parent, q)) {
pos = parent;
parent = blkcg_parent(parent);
}
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index c1fb00a1dfc0..30396cad50e9 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -362,8 +362,8 @@ static inline void blkg_put(struct blkcg_gq *blkg)
*/
#define blkg_for_each_descendant_pre(d_blkg, pos_css, p_blkg) \
css_for_each_descendant_pre((pos_css), &(p_blkg)->blkcg->css) \
- if (((d_blkg) = __blkg_lookup(css_to_blkcg(pos_css), \
- (p_blkg)->q, false)))
+ if (((d_blkg) = blkg_lookup(css_to_blkcg(pos_css), \
+ (p_blkg)->q)))
/**
* blkg_for_each_descendant_post - post-order walk of a blkg's descendants
@@ -377,8 +377,8 @@ static inline void blkg_put(struct blkcg_gq *blkg)
*/
#define blkg_for_each_descendant_post(d_blkg, pos_css, p_blkg) \
css_for_each_descendant_post((pos_css), &(p_blkg)->blkcg->css) \
- if (((d_blkg) = __blkg_lookup(css_to_blkcg(pos_css), \
- (p_blkg)->q, false)))
+ if (((d_blkg) = blkg_lookup(css_to_blkcg(pos_css), \
+ (p_blkg)->q)))
bool __blkcg_punt_bio_submit(struct bio *bio);
