2023-12-14 20:58 GMT+09:00, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > On Thu, Dec 14, 2023 at 08:33:48PM +0900, Namjae Jeon wrote: >> 2023-12-14 17:05 GMT+09:00, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: >> > On Thu, Dec 14, 2023 at 08:31:44AM +0900, Namjae Jeon wrote: >> >> 2023-12-13 23:36 GMT+09:00, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: >> >> > On Tue, Dec 12, 2023 at 08:13:37PM +0000, Steven French wrote: >> >> >> Out of curiosity, has there been an alternative approach for some >> >> >> backports, where someone backports most fixes and features (and >> >> >> safe >> >> >> cleanup) but does not backport any of the changesets which have >> >> >> dependencies outside the module (e.g. VFS changes, netfs or mm >> >> >> changes >> >> >> etc.) to reduce patch dependency risk (ie 70-80% backport instead >> >> >> of >> >> >> the typical 10-20% that are picked up by stable)? >> >> >> >> >> >> For example, we (on the client) ran into issues with 5.15 kernel >> >> >> (for >> >> >> the client) missing so many important fixes and features (and >> >> >> sometimes hard to distinguish when a new feature is also a 'fix') >> >> >> that >> >> >> I did a "full backport" for cifs.ko again a few months ago for 5.15 >> >> >> (leaving out about 10% of the patches, those with dependencies or >> >> >> that >> >> >> would be risky). >> >> > >> >> > We did take a "big backport/sync" for io_uring in 5.15.y a while >> >> > ago, >> >> > so >> >> > there is precident for this. >> >> > >> >> > But really, is anyone even using this feature in 5.15.y anyway? I >> >> > don't >> >> > know of any major distro using 5.15.y any more, and Android systems >> >> > based on 5.15.y don't use this specific filesystem, so what is left? >> >> > Can we just mark it broken and be done with it? >> >> As I know, ksmbd is enable in 5.15 kernel of some distros(opensuse, >> >> ubuntu, etc) except redhat. >> > >> > But do any of them actually use the 5.15.y kernel tree and take updates >> > from there? That's the key thing here. >> Yes, openWRT guy said that openWRT use ksmbd module of stable 5.15.y >> kernel for their NAS function. >> The most recent major release, 23.05.x, uses the 5.15 kernel, and the >> kernel version is updated in minor releases. >> https://github.com/openwrt/openwrt/commit/95ebd609ae7bdcdb48c74ad93d747f24c94d4a07 >> >> https://downloads.openwrt.org/releases/23.05.2/targets/x86/64/kmods/5.15.137-1-47964456485559d992fe6f536131fc64/ >> >> https://downloads.openwrt.org/releases/23.05.2/targets/x86/64/kmods/5.15.137-1-47964456485559d992fe6f536131fc64/kmod-fs-ksmbd_5.15.137-1_x86_64.ipk >> >> https://github.com/openwrt/openwrt/blob/fcf08d9db6a50a3ca6f0b64d105d975ab896cc35/package/kernel/linux/modules/fs.mk#L349 > > Ok, thanks, that's good to know. Also you might want to warn them that > it's missing loads of security fixes at this point in time and that they > might want to move to a newer kernel release :) Okay, I will. And I will check ksmbd in 6.1 LTS kernel as well as 5.15. Thanks! > > thanks, > > greg k-h >
