git: 56e00aca338c - stable/14 - zfs readdir: if there were no dirents to copy out, return EINVAL same as UFS

The branch stable/14 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=56e00aca338cc45c3fbd4f95c2a8bb8dfac1efb7

commit 56e00aca338cc45c3fbd4f95c2a8bb8dfac1efb7
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-08-16 01:33:09 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-08-25 08:42:18 +0000

    zfs readdir: if there were no dirents to copy out, return EINVAL same as UFS
    
    (cherry picked from commit 9a3edc8d5dbcb896179cfa7867f961184e146a09)
---
 sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c
index c477ad55dbaa..f87182d1c484 100644
--- a/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c
+++ b/sys/contrib/openzfs/module/os/freebsd/zfs/zfs_vnops_os.c
@@ -1561,6 +1561,7 @@ zfs_readdir(vnode_t *vp, zfs_uio_t *uio, cred_t *cr, int *eofp,
 	objset_t	*os;
 	caddr_t		outbuf;
 	size_t		bufsize;
+	ssize_t		orig_resid;
 	zap_cursor_t	zc;
 	zap_attribute_t	zap;
 	uint_t		bytes_wanted;
@@ -1609,6 +1610,7 @@ zfs_readdir(vnode_t *vp, zfs_uio_t *uio, cred_t *cr, int *eofp,
 	error = 0;
 	os = zfsvfs->z_os;
 	offset = zfs_uio_offset(uio);
+	orig_resid = zfs_uio_resid(uio);
 	prefetch = zp->z_zn_prefetch;
 
 	/*
@@ -1786,7 +1788,7 @@ update:
 		kmem_free(outbuf, bufsize);
 
 	if (error == ENOENT)
-		error = 0;
+		error = orig_resid == zfs_uio_resid(uio) ? EINVAL : 0;
 
 	ZFS_ACCESSTIME_STAMP(zfsvfs, zp);