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NFSv4: Always clear the pNFS layout when handling ESTALE

If we get an ESTALE error in response to an RPC call operating on the
file on the MDS, we should immediately cancel the layout for that file.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Trond Myklebust vor 7 Jahren
Ursprung
Commit
cf61eb2686
2 geänderte Dateien mit 9 neuen und 0 gelöschten Zeilen
  1. 4 0
      fs/nfs/nfs42proc.c
  2. 5 0
      fs/nfs/nfs4proc.c

+ 4 - 0
fs/nfs/nfs42proc.c

@@ -370,6 +370,10 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata)
 	switch (task->tk_status) {
 	case 0:
 		break;
+	case -NFS4ERR_BADHANDLE:
+	case -ESTALE:
+		pnfs_destroy_layout(NFS_I(inode));
+		break;
 	case -NFS4ERR_EXPIRED:
 	case -NFS4ERR_ADMIN_REVOKED:
 	case -NFS4ERR_DELEG_REVOKED:

+ 5 - 0
fs/nfs/nfs4proc.c

@@ -407,6 +407,11 @@ static int nfs4_do_handle_exception(struct nfs_server *server,
 	switch(errorcode) {
 		case 0:
 			return 0;
+		case -NFS4ERR_BADHANDLE:
+		case -ESTALE:
+			if (inode != NULL && S_ISREG(inode->i_mode))
+				pnfs_destroy_layout(NFS_I(inode));
+			break;
 		case -NFS4ERR_DELEG_REVOKED:
 		case -NFS4ERR_ADMIN_REVOKED:
 		case -NFS4ERR_EXPIRED: