Aurélien Aptel <aurelien.aptel@xxxxxxxxx> writes: > On Tue, Jan 17, 2023 at 1:35 AM Paulo Alcantara <pc@xxxxxx> wrote: >> - down_write(&htable_rw_lock); >> + down_read(&htable_rw_lock); >> >> ce = lookup_cache_entry(path); >> - if (!IS_ERR(ce)) { >> - if (!cache_entry_expired(ce)) { >> - dump_ce(ce); >> - up_write(&htable_rw_lock); >> - return 0; >> - } >> - } else { >> - newent = true; >> + if (!IS_ERR(ce) && !cache_entry_expired(ce)) { >> + up_read(&htable_rw_lock); >> + return 0; >> } >> >> + up_read(&htable_rw_lock); > > Please add a comment before the up_read() to say why you do it here > and where is the dead lock. Ok, thanks. Will send v2 with your suggestions.