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-rw-r--r--fs/fat/misc.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 61f23511eacf..79fb98ad36d4 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -142,7 +142,7 @@ static int day_n[] = {
142}; 142};
143 143
144/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */ 144/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */
145int date_dos2unix(unsigned short time, unsigned short date) 145int date_dos2unix(unsigned short time, unsigned short date, int tz_utc)
146{ 146{
147 int month, year, secs; 147 int month, year, secs;
148 148
@@ -156,16 +156,18 @@ int date_dos2unix(unsigned short time, unsigned short date)
156 ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 && 156 ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 &&
157 month < 2 ? 1 : 0)+3653); 157 month < 2 ? 1 : 0)+3653);
158 /* days since 1.1.70 plus 80's leap day */ 158 /* days since 1.1.70 plus 80's leap day */
159 secs += sys_tz.tz_minuteswest*60; 159 if (!tz_utc)
160 secs += sys_tz.tz_minuteswest*60;
160 return secs; 161 return secs;
161} 162}
162 163
163/* Convert linear UNIX date to a MS-DOS time/date pair. */ 164/* Convert linear UNIX date to a MS-DOS time/date pair. */
164void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date) 165void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date, int tz_utc)
165{ 166{
166 int day, year, nl_day, month; 167 int day, year, nl_day, month;
167 168
168 unix_date -= sys_tz.tz_minuteswest*60; 169 if (!tz_utc)
170 unix_date -= sys_tz.tz_minuteswest*60;
169 171
170 /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */ 172 /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */
171 if (unix_date < 315532800) 173 if (unix_date < 315532800)