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bcachefs: Fix a locking bug
author
Kent Overstreet
<kent.overstreet@gmail.com>
Mon, 30 Mar 2020 21:43:21 +0000
(17:43 -0400)
committer
Kent Overstreet
<kent.overstreet@linux.dev>
Sun, 22 Oct 2023 21:08:38 +0000
(17:08 -0400)
Dropping the wrong kind of lock can't lead to anything good...
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
fs/bcachefs/btree_io.h
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diff --git
a/fs/bcachefs/btree_io.h
b/fs/bcachefs/btree_io.h
index fa996fdc547423952b747b83762e5b766ea5d25e..f3d7ec749b61870511d2641df3ecd01f5ef6a540 100644
(file)
--- a/
fs/bcachefs/btree_io.h
+++ b/
fs/bcachefs/btree_io.h
@@
-114,7
+114,7
@@
static inline void btree_node_write_if_need(struct bch_fs *c, struct btree *b,
break;
}
- six_unlock_
read(&b->c.lock
);
+ six_unlock_
type(&b->c.lock, lock_held
);
btree_node_wait_on_io(b);
btree_node_lock_type(c, b, lock_held);
}