fat: Fix and cleanup timestamp conversion

This cleans date_dos2unix()/fat_date_unix2dos() up. New code should be
much more readable.

And this fixes those old functions. Those doesn't handle 2100
correctly. 2100 isn't leap year, but old one handles it as leap year.
Also, with this, centi sec is handled and is fixed.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index c0a4d5cd99b..e92e8158eba 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -247,7 +247,7 @@ static int msdos_add_entry(struct inode *dir, const unsigned char *name,
         if (is_hid)
                 de.attr |= ATTR_HIDDEN;
         de.lcase = 0;
-        fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc);
+        fat_time_unix2fat(sbi, ts, &time, &date, NULL);
         de.cdate = de.adate = 0;
         de.ctime = 0;
         de.ctime_cs = 0;