The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=861abdadf9db4dd7ba577537ba262fcda29869dd
commit 861abdadf9db4dd7ba577537ba262fcda29869dd Author: Dmitry Chagin <[email protected]> AuthorDate: 2023-06-13 12:22:09 +0000 Commit: Dmitry Chagin <[email protected]> CommitDate: 2023-06-13 12:22:09 +0000 namei: Add a comment explaining ISRESTARTED flag Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D40494 --- sys/kern/vfs_lookup.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/kern/vfs_lookup.c b/sys/kern/vfs_lookup.c index c813296b4931..20919fb38b4d 100644 --- a/sys/kern/vfs_lookup.c +++ b/sys/kern/vfs_lookup.c @@ -81,6 +81,11 @@ static void NDVALIDATE_impl(struct nameidata *, int); #define NDVALIDATE(ndp) #endif +/* + * Prepare namei() to restart. Reset components to its original state and set + * ISRESTARTED flag which signals the underlying lookup code to change the root + * from ABI root to actual root and prevents a further restarts. + */ #define NDRESTART(ndp) do { \ NDREINIT_DBG(ndp); \ ndp->ni_resflags = 0; \
