1 files changed, 7 insertions, 3 deletions

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 7003e5266f25..288f068740f6 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -167,12 +167,16 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
 static size_t ramoops_write_kmsg_hdr(struct persistent_ram_zone *prz)
 {
         char *hdr;
-        struct timeval timestamp;
+        struct timespec timestamp;
         size_t len;
 
-        do_gettimeofday(&timestamp);
+        /* Report zeroed timestamp if called before timekeeping has resumed. */
+        if (__getnstimeofday(&timestamp)) {
+                timestamp.tv_sec = 0;
+                timestamp.tv_nsec = 0;
+        }
         hdr = kasprintf(GFP_ATOMIC, RAMOOPS_KERNMSG_HDR "%lu.%lu\n",
-                (long)timestamp.tv_sec, (long)timestamp.tv_usec);
+                (long)timestamp.tv_sec, (long)(timestamp.tv_nsec / 1000));
         WARN_ON_ONCE(!hdr);
         len = hdr ? strlen(hdr) : 0;
         persistent_ram_write(prz, hdr, len);