[PATCH 23/24] nfsd: track requested dir attributes

[Jeff Layton]

Track the union of requested and supported dir attributes in the
delegation, and only encode the attributes in that union when sending
add/remove/rename updates.

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/nfsd/nfs4proc.c  |  7 ++++---
 fs/nfsd/nfs4state.c | 14 +++++++++++++-
 fs/nfsd/state.h     |  2 ++
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index a807a55dddf9..82d7c473e4d3 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -2506,9 +2506,10 @@ 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
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 59a9b1ca836b..c4b6f4d65a47 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -9795,6 +9795,15 @@ 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
@@ -9864,10 +9873,13 @@ nfsd_get_dir_deleg(struct nfsd4_compound_state *cstate,
 		dp->dl_stid.sc_export =
 			exp_get(cstate->current_fh.fh_export);
 
+	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, gdd->gddr_notification[0]);
+	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 7ca5ef9caafe..56a3cfb12e65 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -284,7 +284,9 @@ 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)

-- 
2.53.0