From: Steve French <smfrench@gmail.com>
To: David Howells <dhowells@redhat.com>
Cc: Jeff Layton <jlayton@kernel.org>,
Christian Brauner <christian@brauner.io>,
Gao Xiang <hsiangkao@linux.alibaba.com>,
Dominique Martinet <asmadeus@codewreck.org>,
Matthew Wilcox <willy@infradead.org>,
Marc Dionne <marc.dionne@auristor.com>,
Paulo Alcantara <pc@manguebit.com>,
Shyam Prasad N <sprasad@microsoft.com>,
Tom Talpey <tom@talpey.com>,
Eric Van Hensbergen <ericvh@kernel.org>,
Ilya Dryomov <idryomov@gmail.com>,
netfs@lists.linux.dev, linux-cachefs@redhat.com,
linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org,
linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org,
v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Steve French <sfrench@samba.org>,
Shyam Prasad N <nspmangalore@gmail.com>,
Rohith Surabattula <rohiths.msft@gmail.com>
Subject: Re: [PATCH 01/26] cifs: Fix duplicate fscache cookie warnings
Date: Mon, 15 Apr 2024 17:51:30 -0500 [thread overview]
Message-ID: <CAH2r5msFoGAE79pS5bEt5T8a60LU82mdjNdpfe0bG4YpvY8t-g@mail.gmail.com> (raw)
In-Reply-To: <2345944.1713186234@warthog.procyon.org.uk>
Should this be merged independently (and sooner? in rc5?)
On Mon, Apr 15, 2024 at 8:04 AM David Howells <dhowells@redhat.com> wrote:
>
> Jeff Layton <jlayton@kernel.org> wrote:
>
> > > +struct cifs_fscache_inode_key {
> > > +
> > > + __le64 uniqueid; /* server inode number */
> > > + __le64 createtime; /* creation time on server */
> > > + u8 type; /* S_IFMT file type */
> > > +} __packed;
> > > +
> >
> > Interesting. So the uniqueid of the inode is not unique within the fs?
> > Or are the clients are mounting shares that span multiple filesystems?
> > Or, are we looking at a situation where the uniqueid is being quickly
> > reused for new inodes after the original inode is unlinked?
>
> The problem is that it's not unique over time. creat(); unlink(); creat();
> may yield a repeat of the uniqueid. It's like i_ino in that respect.
>
> David
>
--
Thanks,
Steve
next prev parent reply other threads:[~2024-04-15 22:51 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-28 16:33 [PATCH 00/26] netfs, afs, 9p, cifs: Rework netfs to use ->writepages() to copy to cache David Howells
2024-03-28 16:33 ` [PATCH 01/26] cifs: Fix duplicate fscache cookie warnings David Howells
2024-04-15 11:25 ` Jeff Layton
2024-04-15 13:03 ` David Howells
2024-04-15 22:51 ` Steve French [this message]
2024-04-16 22:40 ` David Howells
2024-03-28 16:33 ` [PATCH 02/26] 9p: Clean up some kdoc and unused var warnings David Howells
2024-03-28 16:33 ` [PATCH 03/26] netfs: Update i_blocks when write committed to pagecache David Howells
2024-04-15 11:28 ` Jeff Layton
2024-04-16 22:47 ` David Howells
2024-03-28 16:33 ` [PATCH 04/26] netfs: Replace PG_fscache by setting folio->private and marking dirty David Howells
2024-03-28 16:33 ` [PATCH 05/26] mm: Remove the PG_fscache alias for PG_private_2 David Howells
2024-03-28 16:33 ` [PATCH 06/26] netfs: Remove deprecated use of PG_private_2 as a second writeback flag David Howells
2024-03-28 16:33 ` [PATCH 07/26] netfs: Make netfs_io_request::subreq_counter an atomic_t David Howells
2024-03-28 16:34 ` [PATCH 08/26] netfs: Use subreq_counter to allocate subreq debug_index values David Howells
2024-03-28 16:34 ` [PATCH 09/26] mm: Provide a means of invalidation without using launder_folio David Howells
2024-04-15 11:41 ` Jeff Layton
2024-04-17 9:02 ` David Howells
2024-03-28 16:34 ` [PATCH 10/26] cifs: Use alternative invalidation to " David Howells
2024-03-28 16:34 ` [PATCH 11/26] 9p: " David Howells
2024-04-15 11:43 ` Jeff Layton
2024-04-16 23:03 ` David Howells
2024-03-28 16:34 ` [PATCH 12/26] afs: " David Howells
2024-03-28 16:34 ` [PATCH 13/26] netfs: Remove ->launder_folio() support David Howells
2024-03-28 16:34 ` [PATCH 14/26] netfs: Use mempools for allocating requests and subrequests David Howells
2024-03-28 16:34 ` [PATCH 15/26] mm: Export writeback_iter() David Howells
2024-04-03 8:59 ` Christoph Hellwig
2024-04-03 10:10 ` David Howells
2024-04-03 10:14 ` Christoph Hellwig
2024-04-03 10:55 ` David Howells
2024-04-03 12:41 ` Christoph Hellwig
2024-04-03 12:58 ` David Howells
2024-04-05 6:53 ` Christoph Hellwig
2024-04-05 10:15 ` Christian Brauner
2024-03-28 16:34 ` [PATCH 16/26] netfs: Switch to using unsigned long long rather than loff_t David Howells
2024-03-28 16:34 ` [PATCH 17/26] netfs: Fix writethrough-mode error handling David Howells
2024-04-15 12:40 ` Jeff Layton
2024-04-17 9:04 ` David Howells
2024-03-28 16:34 ` [PATCH 18/26] netfs: Add some write-side stats and clean up some stat names David Howells
2024-03-28 16:34 ` [PATCH 19/26] netfs: New writeback implementation David Howells
2024-03-29 10:34 ` Naveen Mamindlapalli
2024-03-30 1:06 ` Vadim Fedorenko
2024-03-30 1:06 ` Vadim Fedorenko
2024-03-30 1:03 ` Vadim Fedorenko
2024-03-28 16:34 ` [PATCH 20/26] netfs, afs: Implement helpers for new write code David Howells
2024-03-28 16:34 ` [PATCH 21/26] netfs, 9p: " David Howells
2024-03-28 16:34 ` [PATCH 22/26] netfs, cachefiles: " David Howells
2024-03-28 16:34 ` [PATCH 23/26] netfs: Cut over to using new writeback code David Howells
2024-03-28 16:34 ` [PATCH 24/26] netfs: Remove the old " David Howells
2024-04-15 12:20 ` Jeff Layton
2024-04-17 10:36 ` David Howells
2024-03-28 16:34 ` [PATCH 25/26] netfs: Miscellaneous tidy ups David Howells
2024-03-28 16:34 ` [PATCH 26/26] netfs, afs: Use writeback retry to deal with alternate keys David Howells
2024-04-01 13:53 ` Simon Horman
2024-04-02 8:32 ` David Howells
2024-04-10 17:38 ` Simon Horman
2024-04-11 7:09 ` David Howells
2024-04-02 8:46 ` [PATCH 19/26] netfs: New writeback implementation David Howells
2024-04-02 10:48 ` [PATCH 00/26] netfs, afs, 9p, cifs: Rework netfs to use ->writepages() to copy to cache Christian Brauner
2024-04-04 7:51 ` [PATCH 21/26] netfs, 9p: Implement helpers for new write code David Howells
2024-04-04 8:01 ` David Howells
2024-04-08 15:53 ` [PATCH 23/26] netfs: Cut over to using new writeback code David Howells
2024-04-15 12:49 ` [PATCH 00/26] netfs, afs, 9p, cifs: Rework netfs to use ->writepages() to copy to cache Jeff Layton
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