The patch titled
Subject: fat: allow time_offset to be up to 24 hours
has been added to the -mm tree. Its filename is
fat-allow-time_offset-to-be-upto-24-hours.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fat-allow-time_offset-to-be-upto-24-hours.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fat-allow-time_offset-to-be-upto-24-hours.patch
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------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: fat: allow time_offset to be up to 24 hours
Currently we limit values of time_offset mount option to be between -12
and 12 hours. However e.g. zone GMT+12 can have a DST correction on top
which makes the total time difference 13 hours. Update the checks in
mount option parsing to allow offset of upto 24 hours to allow for unusual
cases.
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reported-by: Volker Kuhlmann <list0570@xxxxxxxxxxxxxxx>
Acked-by: OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/fat/inode.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN fs/fat/inode.c~fat-allow-time_offset-to-be-upto-24-hours fs/fat/inode.c
--- a/fs/fat/inode.c~fat-allow-time_offset-to-be-upto-24-hours
+++ a/fs/fat/inode.c
@@ -1146,7 +1146,12 @@ static int parse_options(struct super_bl
case Opt_time_offset:
if (match_int(&args[0], &option))
return -EINVAL;
- if (option < -12 * 60 || option > 12 * 60)
+ /*
+ * GMT+-12 zones may have DST corrections so at least
+ * 13 hours difference is needed. Make the limit 24
+ * just in case someone invents something unusual.
+ */
+ if (option < -24 * 60 || option > 24 * 60)
return -EINVAL;
opts->tz_set = 1;
opts->time_offset = option;
_
Patches currently in -mm which might be from jack@xxxxxxx are
fat-allow-time_offset-to-be-upto-24-hours.patch
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