[PATCH v6 19/20] nfsd: track requested dir attributes

[Jeff Layton <jlayton@kernel.org>]

Track the union of requested and supported dir attributes in the
delegation. In a later patch this will be used to ensure that we
only encode the attributes in that union when sending
add/remove/rename updates.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/nfsd/nfs4proc.c  |  9 ++++++---
 fs/nfsd/nfs4state.c | 20 ++++++++++++++++----
 fs/nfsd/state.h     |  2 ++
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index caec82e77081..9e86f5907f06 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -2530,9 +2530,10 @@ nfsd4_verify(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	return status == nfserr_same ? nfs_ok : status;
 }
 
-#define SUPPORTED_NOTIFY_MASK	(BIT(NOTIFY4_REMOVE_ENTRY) |	\
-				 BIT(NOTIFY4_ADD_ENTRY) |	\
-				 BIT(NOTIFY4_RENAME_ENTRY) |	\
+#define SUPPORTED_NOTIFY_MASK	(BIT(NOTIFY4_CHANGE_DIR_ATTRS) |	\
+				 BIT(NOTIFY4_REMOVE_ENTRY) |		\
+				 BIT(NOTIFY4_ADD_ENTRY) |		\
+				 BIT(NOTIFY4_RENAME_ENTRY) |		\
 				 BIT(NOTIFY4_GFLAG_EXTEND))
 
 static __be32
@@ -2579,6 +2580,8 @@ nfsd4_get_dir_delegation(struct svc_rqst *rqstp,
 	memcpy(&gdd->gddr_stateid, &dd->dl_stid.sc_stateid, sizeof(gdd->gddr_stateid));
 	gdd->gddr_child_attributes[0] = dd->dl_child_attrs[0];
 	gdd->gddr_child_attributes[1] = dd->dl_child_attrs[1];
+	gdd->gddr_dir_attributes[0] = dd->dl_dir_attrs[0];
+	gdd->gddr_dir_attributes[1] = dd->dl_dir_attrs[1];
 	nfs4_put_stid(&dd->dl_stid);
 	return nfs_ok;
 }
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0e6e008c121e..12627afb604f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -9945,6 +9945,15 @@ nfsd4_deleg_getattr_conflict(struct svc_rqst *rqstp, struct dentry *dentry,
 				 FATTR4_WORD1_TIME_MODIFY |	\
 				 FATTR4_WORD1_TIME_CREATE)
 
+#define GDD_WORD0_DIR_ATTRS	(FATTR4_WORD0_CHANGE |		\
+				 FATTR4_WORD0_SIZE)
+
+#define GDD_WORD1_DIR_ATTRS	(FATTR4_WORD1_NUMLINKS |	\
+				 FATTR4_WORD1_SPACE_USED |	\
+				 FATTR4_WORD1_TIME_ACCESS |	\
+				 FATTR4_WORD1_TIME_METADATA |	\
+				 FATTR4_WORD1_TIME_MODIFY)
+
 /**
  * nfsd_get_dir_deleg - attempt to get a directory delegation
  * @cstate: compound state
@@ -10013,14 +10022,17 @@ nfsd_get_dir_deleg(struct nfsd4_compound_state *cstate,
 		dp->dl_stid.sc_export =
 			exp_get(cstate->current_fh.fh_export);
 
-	dp->dl_child_attrs[0] = gdd->gdda_child_attributes[0] & GDD_WORD0_CHILD_ATTRS;
-	dp->dl_child_attrs[1] = gdd->gdda_child_attributes[1] & GDD_WORD1_CHILD_ATTRS;
-
 	/*
 	 * NB: gddr_notification[0] represents the notifications that
 	 * will be granted to the client
 	 */
-	fl = nfs4_alloc_init_lease(dp, gdd->gddr_notification[0]);
+	dp->dl_notify_mask = gdd->gddr_notification[0];
+	dp->dl_child_attrs[0] = gdd->gdda_child_attributes[0] & GDD_WORD0_CHILD_ATTRS;
+	dp->dl_child_attrs[1] = gdd->gdda_child_attributes[1] & GDD_WORD1_CHILD_ATTRS;
+	dp->dl_dir_attrs[0] = gdd->gdda_dir_attributes[0] & GDD_WORD0_DIR_ATTRS;
+	dp->dl_dir_attrs[1] = gdd->gdda_dir_attributes[1] & GDD_WORD1_DIR_ATTRS;
+
+	fl = nfs4_alloc_init_lease(dp, dp->dl_notify_mask);
 	if (!fl)
 		goto out_put_stid;
 
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 0763893bfd48..17be4011740d 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -299,7 +299,9 @@ struct nfs4_delegation {
 	struct timespec64	dl_ctime;
 
 	/* For dir delegations */
+	uint32_t		dl_notify_mask;
 	uint32_t		dl_child_attrs[2];
+	uint32_t		dl_dir_attrs[2];
 };
 
 static inline bool deleg_is_read(u32 dl_type)

-- 
2.54.0