diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index c02327c88d6..f470b045de6 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1754,21 +1754,23 @@ falloc_noinstall(struct thread *td, struct file **resultfp) { struct file *fp; int maxuserfiles = maxfiles - (maxfiles / 20); + int openfiles_new; static struct timeval lastfail; static int curfail; KASSERT(resultfp != NULL, ("%s: resultfp == NULL", __func__)); - if ((openfiles >= maxuserfiles && + openfiles_new = atomic_fetchadd_int(&openfiles, 1) + 1; + if ((openfiles_new >= maxuserfiles && priv_check(td, PRIV_MAXFILES) != 0) || - openfiles >= maxfiles) { + openfiles_new >= maxfiles) { + atomic_subtract_int(&openfiles, 1); if (ppsratecheck(&lastfail, &curfail, 1)) { printf("kern.maxfiles limit exceeded by uid %i, (%s) " "please see tuning(7).\n", td->td_ucred->cr_ruid, td->td_proc->p_comm); } return (ENFILE); } - atomic_add_int(&openfiles, 1); fp = uma_zalloc(file_zone, M_WAITOK | M_ZERO); refcount_init(&fp->f_count, 1); fp->f_cred = crhold(td->td_ucred);