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cred: add a prediction to crfree for td->td_realucred == cr

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This matches crhold and eliminates an assembly maze in the common case.
This commit is contained in:
Mateusz Guzik 2020-07-02 12:58:07 +00:00
parent d23850207b
commit a2de789ebb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=362890
1 changed files with 1 additions and 1 deletions
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2
sys/kern/kern_prot.c
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@ -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--;