From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13] Date: Thu, 31 Aug 2006 11:04:19 -0700 Message-ID: <20060831110419.e2454964.akpm@osdl.org> References: <20060831102127.8fb9a24b.akpm@osdl.org> <20060830135503.98f57ff3.akpm@osdl.org> <20060830125239.6504d71a.akpm@osdl.org> <20060830193153.12446.24095.stgit@warthog.cambridge.redhat.com> <27414.1156970238@warthog.cambridge.redhat.com> <9849.1157018310@warthog.cambridge.redhat.com> <11507.1157046128@warthog.cambridge.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, nfsv4@linux-nfs.org, steved@redhat.com, torvalds@osdl.org, linux-cachefs@redhat.com, linux-fsdevel@vger.kernel.org Return-path: To: David Howells In-Reply-To: <11507.1157046128@warthog.cambridge.redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfsv4-bounces@linux-nfs.org Errors-To: nfsv4-bounces@linux-nfs.org List-Id: linux-fsdevel.vger.kernel.org On Thu, 31 Aug 2006 18:42:08 +0100 David Howells wrote: > > Your CONFIG_BLOCK patches did a decent job of trashing your > > fs-cache-make-kafs-* patches, btw. What's up with that? OK, it's sensible > > for people to work against mainline but the net effect of doing that is to > > create a mess for other people to clean up. > > Hmmm... Jens wanted my block patches against his tree; you wanted my NFS > patches against Trond's NFS tree. I guess I should try stacking the whole > lot, but against what? And who carries the fixes? A patch to fix this > problem may well only apply to a tree that's the conjunction of both:-/ There is no easy solution, particularly with a patch like that one which splatters itself all over the place. The best time to do such things is against 2.6.x-rc1, when everyone is maximally-merged-up. The worst time is when we're at 2.6.x-rc5, when everyone is maximally-unmerged-up. If we're at -rc5 and one doesn't want to wait for a few weeks then one can work against the -mm lineup, because then when we hit -rc1 and the subsystems are merged up, the proposed patch will slot in nicely with minimal breakage: no queue-jumping. The exception to that rule is patches which move files around. Because even a single-line change in one of the affected files will cause the move-things-around patch to break, and to need somewhat risky rework. In that case, simply waiting until -rc1 is the best approach