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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:35 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:35 +0000
commit7b642cd94bb96385cbdbb36a1952f129af6b1bbb (patch)
treee7c4209372da8a2fa745aaa3e99d062e54d0f556 /block/blk-throttle.c
parentAdding debian version 4.19.289-2. (diff)
downloadlinux-7b642cd94bb96385cbdbb36a1952f129af6b1bbb.tar.xz
linux-7b642cd94bb96385cbdbb36a1952f129af6b1bbb.zip
Merging upstream version 4.19.304.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'block/blk-throttle.c')
-rw-r--r--block/blk-throttle.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 853b1770d..e58c03c50 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1383,6 +1383,7 @@ static void tg_conf_updated(struct throtl_grp *tg, bool global)
tg_bps_limit(tg, READ), tg_bps_limit(tg, WRITE),
tg_iops_limit(tg, READ), tg_iops_limit(tg, WRITE));
+ rcu_read_lock();
/*
* Update has_rules[] flags for the updated tg's subtree. A tg is
* considered to have rules if either the tg itself or any of its
@@ -1410,6 +1411,7 @@ static void tg_conf_updated(struct throtl_grp *tg, bool global)
this_tg->latency_target = max(this_tg->latency_target,
parent_tg->latency_target);
}
+ rcu_read_unlock();
/*
* We're already holding queue_lock and know @tg is valid. Let's