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fs: affs: Initialize filesystem timestamp ranges

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Fill in the appropriate limits to avoid inconsistencies
in the vfs cached inode times when timestamps are
outside the permitted range.

Also fix timestamp calculation to avoid overflow
while converting from days to seconds.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: David Sterba <dsterba@suse.com>
Acked-by: Jeff Layton <jlayton@kernel.org>
Cc: dsterba@suse.com
This commit is contained in:
Deepa Dinamani
2019-03-21 14:05:12 -07:00
parent c0da64f6bb
commit 487b25bc4b
4 changed files with 10 additions and 3 deletions
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2
fs/affs/amigaffs.c
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@@ -375,7 +375,7 @@ affs_secs_to_datestamp(time64_t secs, struct affs_date *ds)
u32 minute;
s32 rem;
secs -= sys_tz.tz_minuteswest * 60 + ((8 * 365 + 2) * 24 * 60 * 60);
secs -= sys_tz.tz_minuteswest * 60 + AFFS_EPOCH_DELTA;
if (secs < 0)
secs = 0;
days = div_s64_rem(secs, 86400, &rem);