diff options
Diffstat (limited to 'sys/kern/kern_descrip.c')
| -rw-r--r-- | sys/kern/kern_descrip.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 6d67f9ce2e51..c533e714ce52 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -3344,6 +3344,17 @@ pwd_hold_filedesc(struct filedesc *fdp) return (pwd); } +bool +pwd_hold_smr(struct pwd *pwd) +{ + + MPASS(pwd != NULL); + if (__predict_true(refcount_acquire_if_not_zero(&pwd->pwd_refcount))) { + return (true); + } + return (false); +} + struct pwd * pwd_hold(struct thread *td) { @@ -3354,8 +3365,7 @@ pwd_hold(struct thread *td) vfs_smr_enter(); pwd = vfs_smr_entered_load(&fdp->fd_pwd); - MPASS(pwd != NULL); - if (__predict_true(refcount_acquire_if_not_zero(&pwd->pwd_refcount))) { + if (pwd_hold_smr(pwd)) { vfs_smr_exit(); return (pwd); } |