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nfsd: allow nfsd4_encode_fattr4_change() to work with no export

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In the context of a CB_NOTIFY callback, we may not have easy access to
a svc_export. nfsd will not currently grant a delegation on a the V4 root
however, so this should be safe.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://patch.msgid.link/20260616-dir-deleg-v7-13-6cbc7eac0ade@kernel.org
Signed-off-by: Chuck Lever <cel@kernel.org>
This commit is contained in:
Jeff Layton
2026-08-10 09:54:35 -04:00
committed by Chuck Lever
parent dcc17a22e6
commit f37d614b85
1 changed files with 1 additions and 1 deletions
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fs/nfsd/nfs4xdr.c
+1 -1
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@@ -3277,7 +3277,7 @@ static __be32 nfsd4_encode_fattr4_change(struct xdr_stream *xdr,
{
const struct svc_export *exp = args->exp;
if (unlikely(exp->ex_flags & NFSEXP_V4ROOT)) {
if (exp && unlikely(exp->ex_flags & NFSEXP_V4ROOT)) {
u32 flush_time = convert_to_wallclock(exp->cd->flush_time);
if (xdr_stream_encode_u32(xdr, flush_time) != XDR_UNIT)