Re: -mm -> 2.6.13 merge status

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On 171, 06 20, 2005 at 11:54:58 -0700, Andrew Morton wrote:
> 
> This summarises my current thinking on various patches which are presently
> in -mm.  I cover large things and small-but-controversial things.  Anything
> which isn't covered here (and that's a lot of material) is probably a "will
> merge", unless it obviously isn't.
> 
> (If you reply to this email it would be a good idea to alter the Subject:
> to reflect which feature you are discussing)
> 
> 
> 
> git-ocfs
> 
>     The OCFS2 filesystem.  OK by me, although I'm not sure it's had enough
>     review.
> 
> sparsemem
> 
>     OK by me for a merge.  Need to poke arch maintainers first, check that
>     they've looked at it sufficiently closely.
> 
> vm-early-zone-reclaim
> 
>     Needs some convincing benchmark numbers to back it up.  Otherwise OK.
> 
> avoiding-mmap-fragmentation
> 
>     Tricky.  Addresses vm area fragmentation issues due to recent
>     optimisations to the free-area lookup code.  Will merge.
> 
> periodically-drain-non-local-pagesets
> 
>     Will merge
> 
> pcibus_to_node and users
> 
>     Will merge
> 
> CONFIG_HZ for x86 and ia64: changes default HZ to 250, make HZ Kconfigurable.
> 
>     Will merge (will switch default to 1000 Hz later if that seems necessary)
> 
> dmi-*.patch
> 
>     Will merge.  I have a comment "The below break x440".  Maybe it got
>     fixed.  We'll doubtless hear if not.

Fixed, patch merged in -mm as dmi-move-acpi-sleep-quirk-fix.patch

http://marc.theaimsgroup.com/?l=linux-kernel&m=111829134708641&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=111832375203467&w=2

> xen-*.patch
> 
>     These are little cleanups and abstractions which make a Xen merge
>     easier.  May as well merge them.
> 
> CPU hotplug for x86 and x86_64
> 
>     Not really useful on current hardware, but these provide
>     infrastructure which some power management patches need, and it seems
>     sensible to make the reference architecture support hotplug.  Will merge.
> 
> swsusp-on-SMP
> 
>     Will merge.
> 
> cfq version 3
> 
>     Not sure.  Jens seems to be setting up a few git trees.  On hold.
> 
> RCUification of the key management code
> 
>     Don't know - dhowells seemed diffident last time we discussed this.
> 
> timers-fixes-improvements.patch
> 
>     SMP speedups for the core timer code.  It was bumpy, but this seems
>     stable now.  Will merge.
> 
> kprobes-*
> 
>     Will merge
> 
> rapidio-*
> 
>     Will merge.
> 
> namespace*.patch
> 
>     Awaiting viro ack.
> 
> xtensa architecture
> 
>     Is xtensa now, or will it be in the future a sufficiently popular
>     architecture to justify the cost of having this code in the tree?
> 
>     Heaven knows.  Will merge.
> 
> dlm-*.patch: Red Hat distributed lock manager
> 
>     Hard.  Right now it seems that no in-kernel projects will use this and
>     only one out-of-kernel project will use it.  Shelve the problem until
>     after Kernel Summit, where some light may be shed.
> 
>     Opinions are sought...
> 
> connector.patch
> 
>     Nice idea IMO, but there are still questions around the
>     implementation.  More dialogue needed ;)
> 
> connector-add-a-fork-connector.patch
> 
>     OK, but needs connector.
> 
> inotify
> 
>     There are still concerns about the userspace API and internal
>     implementation details.  More slogging needed.
> 
> pcmcia-*.patch
> 
>     Makes the pcmcia layer generate hotplug events and deprecates cardmgr.
>     Will merge.
> 
> NUMA-aware slab allocator
> 
>     Seems stable now, but it needs some ifdef reduction work before
>     merging, please.
> 
> CPU scheduler
> 
>     Will merge some of these patches.  We're still discussing which ones.
> 
> perfctr
> 
>     Not yet, but getting closer.  The PPC64 guys still need to sort out a
>     few interface issues with Mikael.  We might be able to fit this into
>     2.6.13 if people get a move on.
> 
> cachefs
> 
>     This is a ton of code which knows rather a lot about pagecache
>     internals.  It allows the AFS client to cache file contents on a local
>     blockdev.
> 
>     I don't think it's a justified addition for only AFS and I'd prefer to
>     see it proven for NFS as well.
> 
>     Issues around add-page-becoming-writable-notification.patch need to
>     be resolved.
> 
> cachefs-for-nfs
> 
>     A recent addition.  Needs review from NFS developers and considerably
>     more testing.
> 
>     These things aren't looking likely for 2.6.13.
> 
> kexec and kdump
> 
>     I guess we should merge these.
> 
>     I'm still concerned that the various device shutdown problems will
>     mean that the success rate for crashing kernels is not high enough for
>     kdump to be considered a success.  In which case in six months time we'll
>     hear rumours about vendors shipping wholly different crashdump
>     implementations, which would be quite bad.
> 
>     But I think this has gone as far as it can go in -mm, so it's a bit of
>     a punt.
> 
> reiser4
> 
>     Merge it, I guess.
> 
>     The patches still contain all the reiser4-specific namespace
>     enhancements, only it is disabled, so it is effectively dead code.  Maybe
>     we should ask that it actually be removed?
> 
> v9fs
> 
>     I'm not sure that this has a sufficiently high
>     usefulness-to-maintenance-cost ratio.
> 
> fuse
> 
>     This is useful, but there are, AFAIK, two issues:
> 
>     - We're still deadlocked over some permission-checking hacks in there
> 
>     - It has an NFS server implementation which only works if the
>       to-be-served file happens to be in dcache.
> 
>       It has been said that a userspace NFS server can be used to get
>       full NFS server functionality with FUSE.  I think the half-assed kernel
>       implementation should be done away with.
> 
> execute-in-place
> 
>     Will merge.  Have the embedded guys commented on the usefulness of
>     this for execute-out-of-ROM?
> 
> 
> 
> -
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-- 
Andrey Panin		| Linux and UNIX system administrator
[email protected]		| PGP key: wwwkeys.pgp.net

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