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SubjectRe: [patch 2/2] Documentation/process: Add tip tree handbook
On Thu, Nov 08, 2018 at 03:14:25PM -0500, Theodore Y. Ts'o wrote:
> On Thu, Nov 08, 2018 at 09:19:33AM -0800, Dan Williams wrote:
> >
> > I know at least StGit mail does not grok that "#"notation. I've
> > stopped using it in favor of a "Fixes:" tag. I would think "Fixes:" is
> > preferred over "# <KVER>" if only because it can be used to track
> > fixes to commits that have been backported to stable. Is there any
> > reason for "# <KVER>" to continue in a world where we have "Fixes:"?
> The main annoyance I have with Fixes is because it can be a pain to
> figure out what the "# <KVER>" would be. Something like:
> % tag --contains DEADBEEF | grep ^v | head
> doesn't work because kernel version numbers don't sort obviously. So
> v4.10 comes before v4.3 using a normal sort, and even sort -n doesn't
> do the right.
> I suppose it wouldn't be that hard to write a perl/python script that
> correctly sorts kernel version numbers, but when the "# <KVER>" is
> present, I find it convenient.

'sort -V' should help you out here, no need to write anything new :)

> (Also note that even with fast SSD's and/or everything in page cache,
> runnning "tag --contains <COMMITID>" will take a good 3-4 seconds, and
> if the git packs are not in the page cache, and/or you're unfortunate
> enough to have your git trees on an HDD.... it's not pretty.)

I recommend the "static cache" or whatever that thing is called, that
helps out a _LOT_ with stuff like this. For the kernel tree, which is
never rebased, it speeds up this so much.


greg k-h

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