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-rw-r--r--module/zfs/dbuf_stats.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/module/zfs/dbuf_stats.c b/module/zfs/dbuf_stats.c
index 0e4c18ed7..3b9c63d31 100644
--- a/module/zfs/dbuf_stats.c
+++ b/module/zfs/dbuf_stats.c
@@ -67,6 +67,7 @@ __dbuf_stats_hash_table_data(char *buf, size_t size, dmu_buf_impl_t *db)
arc_buf_info_t abi = { 0 };
dmu_object_info_t doi = { 0 };
dnode_t *dn = DB_DNODE(db);
+ size_t nwritten;
if (db->db_buf)
arc_buf_info(db->db_buf, &abi, zfs_dbuf_state_index);
@@ -74,7 +75,7 @@ __dbuf_stats_hash_table_data(char *buf, size_t size, dmu_buf_impl_t *db)
if (dn)
__dmu_object_info_from_dnode(dn, &doi);
- (void) snprintf(buf, size,
+ nwritten = snprintf(buf, size,
"%-16s %-8llu %-8lld %-8lld %-8lld %-8llu %-8llu %-5d %-5d %-5lu | "
"%-5d %-5d %-6lld 0x%-6x %-6lu %-8llu %-12llu "
"%-6lu %-6lu %-6lu %-6lu %-6lu %-8llu %-8llu %-8d %-5lu | "
@@ -118,7 +119,10 @@ __dbuf_stats_hash_table_data(char *buf, size_t size, dmu_buf_impl_t *db)
(u_longlong_t)doi.doi_fill_count,
(u_longlong_t)doi.doi_max_offset);
- return (size);
+ if (nwritten >= size)
+ return (size);
+
+ return (nwritten + 1);
}
static int