From: Sasha Levin <sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Yu Kuai <yukuai3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>,
Sasha Levin <sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
josef-DigfWCa+lFGyeJad7bwFQA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH AUTOSEL 5.15 10/14] blk-cgroup: fix missing pd_online_fn() while activating policy
Date: Tue, 24 Jan 2023 08:42:53 -0500 [thread overview]
Message-ID: <20230124134257.637523-10-sashal@kernel.org> (raw)
In-Reply-To: <20230124134257.637523-1-sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
From: Yu Kuai <yukuai3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
[ Upstream commit e3ff8887e7db757360f97634e0d6f4b8e27a8c46 ]
If the policy defines pd_online_fn(), it should be called after
pd_init_fn(), like blkg_create().
Signed-off-by: Yu Kuai <yukuai3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Acked-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Link: https://lore.kernel.org/r/20230103112833.2013432-1-yukuai1-XF6JlduFytWkHkcT6e4Xnw@public.gmane.org
Signed-off-by: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
Signed-off-by: Sasha Levin <sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
block/blk-cgroup.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index ce5858dadca5..3ee4c1217b63 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1360,6 +1360,10 @@ int blkcg_activate_policy(struct request_queue *q,
list_for_each_entry_reverse(blkg, &q->blkg_list, q_node)
pol->pd_init_fn(blkg->pd[pol->plid]);
+ if (pol->pd_online_fn)
+ list_for_each_entry_reverse(blkg, &q->blkg_list, q_node)
+ pol->pd_online_fn(blkg->pd[pol->plid]);
+
__set_bit(pol->plid, q->blkcg_pols);
ret = 0;
--
2.39.0
WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yu Kuai <yukuai3@huawei.com>, Tejun Heo <tj@kernel.org>,
Jens Axboe <axboe@kernel.dk>, Sasha Levin <sashal@kernel.org>,
josef@toxicpanda.com, cgroups@vger.kernel.org,
linux-block@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 10/14] blk-cgroup: fix missing pd_online_fn() while activating policy
Date: Tue, 24 Jan 2023 08:42:53 -0500 [thread overview]
Message-ID: <20230124134257.637523-10-sashal@kernel.org> (raw)
In-Reply-To: <20230124134257.637523-1-sashal@kernel.org>
From: Yu Kuai <yukuai3@huawei.com>
[ Upstream commit e3ff8887e7db757360f97634e0d6f4b8e27a8c46 ]
If the policy defines pd_online_fn(), it should be called after
pd_init_fn(), like blkg_create().
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230103112833.2013432-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-cgroup.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index ce5858dadca5..3ee4c1217b63 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1360,6 +1360,10 @@ int blkcg_activate_policy(struct request_queue *q,
list_for_each_entry_reverse(blkg, &q->blkg_list, q_node)
pol->pd_init_fn(blkg->pd[pol->plid]);
+ if (pol->pd_online_fn)
+ list_for_each_entry_reverse(blkg, &q->blkg_list, q_node)
+ pol->pd_online_fn(blkg->pd[pol->plid]);
+
__set_bit(pol->plid, q->blkcg_pols);
ret = 0;
--
2.39.0
next prev parent reply other threads:[~2023-01-24 13:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-24 13:42 [PATCH AUTOSEL 5.15 01/14] ARM: dts: imx: Fix pca9547 i2c-mux node name Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 02/14] ARM: dts: vf610: Fix pca9548 i2c-mux node names Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 03/14] arm64: dts: freescale: Fix pca954x " Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 04/14] arm64: dts: imx8mq-thor96: fix no-mmc property for SDHCI Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 05/14] firmware: arm_scmi: Clear stale xfer->hdr.status Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 06/14] bpf: Skip task with pid=1 in send_signal_common() Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 07/14] erofs/zmap.c: Fix incorrect offset calculation Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 08/14] init/Kconfig: fix LOCALVERSION_AUTO help text Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 09/14] btrfs: factor out scratching of one regular super block Sasha Levin
2023-01-24 13:44 ` Christoph Hellwig
[not found] ` <20230124134257.637523-1-sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2023-01-24 13:42 ` Sasha Levin [this message]
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 10/14] blk-cgroup: fix missing pd_online_fn() while activating policy Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 11/14] HID: playstation: sanity check DualSense calibration data Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 12/14] dmaengine: imx-sdma: Fix a possible memory leak in sdma_transfer_init Sasha Levin
2023-01-24 13:42 ` Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 13/14] cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() Sasha Levin
2023-01-24 13:42 ` [PATCH AUTOSEL 5.15 14/14] ext4: deal with legacy signed xattr name hash values Sasha Levin
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