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bcachefs: Improve lockdep annotation in journalling code

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bch2_journal_res_get() in nonblocking mode is equivalent to a trylock.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-04-11 12:30:30 -04:00 committed by Kent Overstreet
parent 94035eed52
commit 15a07f2eae
1 changed files with 3 additions and 1 deletions
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4
fs/bcachefs/journal.h
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@ -346,7 +346,9 @@ static inline int bch2_journal_res_get(struct journal *j, struct journal_res *re
return ret;
out:
if (!(flags & JOURNAL_RES_GET_CHECK)) {
lock_acquire_shared(&j->res_map, 0, 0, NULL, _THIS_IP_);
lock_acquire_shared(&j->res_map, 0,
(flags & JOURNAL_RES_GET_NONBLOCK) != 0,
NULL, _THIS_IP_);
EBUG_ON(!res->ref);
}
return 0;