Author: mjg
Date: Sat Aug 22 16:58:59 2020
New Revision: 364488
URL: https://svnweb.freebsd.org/changeset/base/364488
Log:
vfs: assert that HASBUF is only set with SAVENAME or SAVESTART
as requested by the caller. The intent is to eradicate the mostly
spurious NDFREE_PNBUF calls.
Modified:
head/sys/kern/vfs_lookup.c
Modified: head/sys/kern/vfs_lookup.c
==============================================================================
--- head/sys/kern/vfs_lookup.c Sat Aug 22 16:58:34 2020 (r364487)
+++ head/sys/kern/vfs_lookup.c Sat Aug 22 16:58:59 2020 (r364488)
@@ -1384,6 +1384,7 @@ NDFREE_PNBUF(struct nameidata *ndp)
{
if ((ndp->ni_cnd.cn_flags & HASBUF) != 0) {
+ MPASS((ndp->ni_cnd.cn_flags & (SAVENAME | SAVESTART)) != 0);
uma_zfree(namei_zone, ndp->ni_cnd.cn_pnbuf);
ndp->ni_cnd.cn_flags &= ~HASBUF;
}
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