Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time()

From: Deepa Dinamani
Date: Thu Jun 09 2016 - 16:41:18 EST


On Thu, Jun 9, 2016 at 12:15 PM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Jun 9, 2016 at 12:35 AM, Jan Kara <jack@xxxxxxx> wrote:
>>
>> You create line longer than 80 characters for affs and reiserfs. Please
>> wrap those lines properly.
>
> No, please do *NOT* do things like that.
>
> These kind of mechanical patches should
>
> (a) be as mechanical as possible (and see elsewhere about why I think
> 'sb' should be 'inode' and the patch should have been 95% automated
> with a trivial script thanks to that change)
>
> (b) be made as easy to verify visually as possible.
>
> That (b) means that a conversion should *not* add whitespace fixups or
> add other non-mechanical cleanups, because it's a *lot* easier to see
> that a conversion like
>
> - inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
> + inode->i_mtime = inode->i_ctime = current_fs_time(inode);
>
> makes no other changes, but if you start doing line-splitting or other
> transformations (add new variables etc to get at 'sb'), suddenly you
> have to verify the patch at a completely different level.
>
> In other words, it's actually really important to make these kinds of
> bulk changes be very very obvious. Including to the point of making
> them visually easier to scan as a patch by not making any other
> changes.

Thanks for the guidelines.
Only patches 1 and 4 are mechanical.
All others need some kind of inspection/ verification.
I will keep these in mind for updating 1 and 4.

-Deepa