Hi Artem, On Mon, Sep 08, 2014 at 12:58:38PM +0300, Artem Bityutskiy wrote: > On Fri, 2014-08-29 at 14:26 +0200, jean-philippe francois wrote: > > Hi, > > > > I think commit 4b3e0a25... [1] (UBI: Call scan_all() with correct > > offset in error case) should be added to 3.10.y stable branch. > > This is the "fastmap" fix, and fastmap is called experimental. We do not > have enough confidence it is production ready. Specifically, I'd like to > hear someone doing extensive power-cut testing with this feature. The > power-cut tolerance is one of the "selling features" of UBI/UBIFS, after > all. > > Therefore I never added fastmap fixes to the stable queue. > > But if someone is willing to put all the fastmap fixes together, add the > "stable tags" with the right kernel version "markings", and test for few > older kernels, then I will recommend them to be included to the stable. > Although I am not sure the stable maintainers would like accept them. > > But I do not recommend adding this single patch to the stable queue. > > But better, if people started paying more attention to "fastmap", we may > agree that from now on we are careful about the sending the fixes to the > stable queue. Personally, I think that whatever feature provided in a kernel release is subject to being used and deserves its fixes. There are some cases where we *know* that some features are not used (eg: when they don't work without a lot of patching or tweaking), but if they seem to work for end users, they are likely to be used. Just my two cents, Willy -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html