On Tue, Jul 30, 2019 at 1:27 AM OGAWA Hirofumi
<hirof...@mail.parknet.co.jp> wrote:
>
> Deepa Dinamani <deepa.ker...@gmail.com> writes:
>
> > diff --git a/fs/fat/misc.c b/fs/fat/misc.c
> > index 1e08bd54c5fb..53bb7c6bf993 100644
> > --- a/fs/fat/misc.c
> > +++ b/fs/fat/misc.c
> > @@ -307,8 +307,9 @@ int fat_truncate_time(struct inode *inode, struct
> > timespec64 *now, int flags)
> > inode->i_atime = (struct timespec64){ seconds, 0 };
> > }
> > if (flags & S_CTIME) {
> > - if (sbi->options.isvfat)
> > - inode->i_ctime = timespec64_trunc(*now, 10000000);
> > + if (sbi->options.isvfat) {
> > + inode->i_ctime = timestamp_truncate(*now, inode);
> > + }
> > else
> > inode->i_ctime = fat_timespec64_trunc_2secs(*now);
> > }
>
> Looks like broken. It changed to sb->s_time_gran from 10000000, and
> changed coding style.
This is using a new api: timestamp_truncate(). granularity is gotten
by inode->sb->s_time_gran. See Patch [2/20]:
https://lkml.org/lkml/2019/7/29/1853
So this is not broken if fat is filling in the right granularity in the sb.
-Deepa
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