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bcachefs: Fix a deadlock

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2018-09-15 17:57:22 -04:00 committed by Kent Overstreet
parent cf0517af15
commit 34b8e55276
1 changed files with 7 additions and 1 deletions
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8
fs/bcachefs/btree_update_interior.c
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@ -1550,7 +1550,13 @@ void bch2_btree_insert_node(struct btree_update *as, struct btree *b,
btree_node_interior_verify(b);
bch2_foreground_maybe_merge(c, iter, b->level, flags);
/*
* when called from the btree_split path the new nodes aren't added to
* the btree iterator yet, so the merge path's unlock/wait/relock dance
* won't work:
*/
bch2_foreground_maybe_merge(c, iter, b->level,
flags|BTREE_INSERT_NOUNLOCK);
return;
split:
btree_split(as, b, iter, keys, flags);