smb: client: fix dentry revalidation of cached rootcfid-fixes-2025-09-12

Don't check root dir dentry in cifs_dentry_needs_reval() as its inode
was created before the cfid, so the time check will fail and trigger an
unnecessary revalidation.

Also account for dir_cache_timeout in time comparison, because if we
have a cached dir, we have a lease for it, and, thus, may assume its
children are (still) valid.  To confirm that, let the ac*max checks
go through for granular results.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>

0 files changed, 0 insertions, 0 deletions