summaryrefslogtreecommitdiff
path: root/fs/exfat/misc.c
diff options
context:
space:
mode:
authorWolfram Sang <wsa@kernel.org>2020-05-20 16:27:45 +0300
committerWolfram Sang <wsa@kernel.org>2020-05-20 16:27:45 +0300
commitf89c326dcaa0cb8c3af7764e75eeed4e3f3c879a (patch)
tree31a5967da1f04180a1a922258f6947ad17255ee8 /fs/exfat/misc.c
parent6fe12cdbcfe35ad4726a619a9546822d34fc934c (diff)
parentefa7fb4c6c8e4171fd29a5935a9dc7a28e363278 (diff)
downloadlinux-f89c326dcaa0cb8c3af7764e75eeed4e3f3c879a.tar.xz
Merge branch 'i2c/for-current-fixed' into i2c/for-5.8
Diffstat (limited to 'fs/exfat/misc.c')
-rw-r--r--fs/exfat/misc.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/exfat/misc.c b/fs/exfat/misc.c
index 14a3300848f6..ebd2cbe3cbc1 100644
--- a/fs/exfat/misc.c
+++ b/fs/exfat/misc.c
@@ -88,7 +88,8 @@ void exfat_get_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
if (time_ms) {
ts->tv_sec += time_ms / 100;
ts->tv_nsec = (time_ms % 100) * 10 * NSEC_PER_MSEC;
- }
+ } else
+ ts->tv_nsec = 0;
if (tz & EXFAT_TZ_VALID)
/* Adjust timezone to UTC0. */
@@ -124,6 +125,17 @@ void exfat_set_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts,
*tz = EXFAT_TZ_VALID;
}
+/*
+ * The timestamp for access_time has double seconds granularity.
+ * (There is no 10msIncrement field for access_time unlike create/modify_time)
+ * atime also has only a 2-second resolution.
+ */
+void exfat_truncate_atime(struct timespec64 *ts)
+{
+ ts->tv_sec = round_down(ts->tv_sec, 2);
+ ts->tv_nsec = 0;
+}
+
unsigned short exfat_calc_chksum_2byte(void *data, int len,
unsigned short chksum, int type)
{