X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fptlrpc%2Fnrs_tbf.c;h=63c7b3852429e0d8539f9d3307ba7d80537dd021;hp=50ddbf4b2e70eee48ebdd1800aa316a1f07a8f16;hb=e8f81877a33017a6bfd7d6e75c5a8b1fc336f347;hpb=617134bd0528ae04f9290ce20863fc955235762f

diff --git a/lustre/ptlrpc/nrs_tbf.c b/lustre/ptlrpc/nrs_tbf.c
index 50ddbf4..63c7b38 100644
--- a/lustre/ptlrpc/nrs_tbf.c
+++ b/lustre/ptlrpc/nrs_tbf.c
@@ -1579,6 +1579,14 @@ ptlrpc_lprocfs_nrs_tbf_rule_seq_show(struct seq_file *m, void *data)
 				       false, m);
 	if (rc == 0) {
 		/**
+		 * -ENOSPC means buf in the parameter m is overflow, return 0
+		 * here to let upper layer function seq_read alloc a larger
+		 * memory area and do this process again.
+		 */
+	} else if (rc == -ENOSPC) {
+		return 0;
+
+		/**
 		 * Ignore -ENODEV as the regular NRS head's policy may be in the
 		 * ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPED state.
 		 */
@@ -1596,11 +1604,12 @@ ptlrpc_lprocfs_nrs_tbf_rule_seq_show(struct seq_file *m, void *data)
 				       false, m);
 	if (rc == 0) {
 		/**
-		 * Ignore -ENODEV as the high priority NRS head's policy may be
-		 * in the ptlrpc_nrs_pol_state::NRS_POL_STATE_STOPPED state.
+		 * -ENOSPC means buf in the parameter m is overflow, return 0
+		 * here to let upper layer function seq_read alloc a larger
+		 * memory area and do this process again.
 		 */
-	} else if (rc != -ENODEV) {
-		return rc;
+	} else if (rc == -ENOSPC) {
+		return 0;
 	}
 
 no_hp: