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maple_tree: change RCU checks to WARN_ON() instead of BUG_ON()

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If RCU is enabled and the tree isn't locked, just warn the user and avoid
crashing the kernel.

Link: https://lkml.kernel.org/r/20230518145544.1722059-9-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2023-05-18 10:55:17 -04:00 committed by Andrew Morton
parent 0d7c52bb29
commit 7f2f9dc16f
1 changed files with 2 additions and 2 deletions
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4
include/linux/maple_tree.h
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@ -616,7 +616,7 @@ static inline void mt_clear_in_rcu(struct maple_tree *mt)
return;
if (mt_external_lock(mt)) {
BUG_ON(!mt_lock_is_held(mt));
WARN_ON(!mt_lock_is_held(mt));
mt->ma_flags &= ~MT_FLAGS_USE_RCU;
} else {
mtree_lock(mt);
@ -635,7 +635,7 @@ static inline void mt_set_in_rcu(struct maple_tree *mt)
return;
if (mt_external_lock(mt)) {
BUG_ON(!mt_lock_is_held(mt));
WARN_ON(!mt_lock_is_held(mt));
mt->ma_flags |= MT_FLAGS_USE_RCU;
} else {
mtree_lock(mt);