Date: Thu, 2 Jul 2020 12:58:07 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r362890 - head/sys/kern Message-ID: <202007021258.062Cw7Av087050@repo.freebsd.org>
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Author: mjg Date: Thu Jul 2 12:58:07 2020 New Revision: 362890 URL: https://svnweb.freebsd.org/changeset/base/362890 Log: cred: add a prediction to crfree for td->td_realucred == cr This matches crhold and eliminates an assembly maze in the common case. Modified: head/sys/kern/kern_prot.c Modified: head/sys/kern/kern_prot.c ============================================================================== --- head/sys/kern/kern_prot.c Thu Jul 2 12:56:20 2020 (r362889) +++ head/sys/kern/kern_prot.c Thu Jul 2 12:58:07 2020 (r362890) @@ -1985,7 +1985,7 @@ crfree(struct ucred *cr) struct thread *td; td = curthread; - if (td->td_realucred == cr) { + if (__predict_true(td->td_realucred == cr)) { KASSERT(cr->cr_users > 0, ("%s: users %d not > 0 on cred %p", __func__, cr->cr_users, cr)); td->td_ucredref--;
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