From: David Howells <dhowells@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: dhowells@redhat.com, linux-afs@lists.infradead.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: 'Adding' a writable proc file under /proc/net/afs/ [was [PATCH 3/3] afs: Implement namespacing]
Date: Tue, 15 May 2018 15:28:25 +0100 [thread overview]
Message-ID: <3982.1526394505@warthog.procyon.org.uk> (raw)
In-Reply-To: <20180515135333.GA31296@lst.de>
Christoph Hellwig <hch@lst.de> wrote:
> So the real question here is why afs needs a write callback as the first
> user of /proc/net ever in a day and time were we've deprecated adding
> new proc files. This is a discussion that should be had with linux-fsdevel
> and netdev in Cc.
/proc/fs/afs/cells and /proc/fs/afs/rootcell are not new proc files, nor is
the ability to configure the in-kernel afs filesystem by writing to them new.
The cells file has been there since 2002 and the rootcell file before the
start of the git history in 2005 - it's just that they've been in
/proc/fs/afs/ not /proc/net/afs/.
However, the afs procfiles need to be somewhere under /proc/net/ for the
network namespacing, so I moved the directory over and emplaced a symlink at
/proc/fs/afs.
David
next prev parent reply other threads:[~2018-05-15 14:28 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-25 15:47 simplify procfs code for seq_file instances V2 Christoph Hellwig
2018-04-25 15:47 ` [PATCH 01/40] net/can: single_open_net needs to be paired with single_release_net Christoph Hellwig
2018-04-25 15:47 ` [PATCH 02/40] proc: simplify proc_register calling conventions Christoph Hellwig
2018-04-25 15:47 ` [PATCH 03/40] proc: add a proc_create_reg helper Christoph Hellwig
2018-04-25 15:47 ` [PATCH 04/40] proc: introduce proc_create_seq{,_data} Christoph Hellwig
2018-04-25 15:47 ` [PATCH 05/40] proc: introduce proc_create_seq_private Christoph Hellwig
2018-04-25 15:47 ` [PATCH 06/40] proc: introduce proc_create_single{,_data} Christoph Hellwig
2018-04-26 1:45 ` Finn Thain
2018-05-15 13:58 ` Christoph Hellwig
2018-04-25 15:47 ` [PATCH 07/40] ipv{4,6}/udp{,lite}: simplify proc registration Christoph Hellwig
2018-04-25 15:47 ` [PATCH 08/40] ipv{4,6}/tcp: simplify procfs registration Christoph Hellwig
2018-04-25 15:47 ` [PATCH 09/40] ipv{4,6}/ping: simplify proc file creation Christoph Hellwig
2018-04-25 15:47 ` [PATCH 10/40] ipv{4, 6}/raw: simplify ѕeq_file code Christoph Hellwig
2018-04-25 15:47 ` [PATCH 11/40] ipv6/flowlabel: simplify pid namespace lookup Christoph Hellwig
2018-05-05 12:37 ` Eric W. Biederman
2018-05-15 14:56 ` Christoph Hellwig
2018-05-17 5:28 ` Eric W. Biederman
2018-05-17 6:42 ` Christoph Hellwig
2018-05-17 19:14 ` Eric W. Biederman
2018-04-25 15:47 ` [PATCH 12/40] net/kcm: simplify proc registration Christoph Hellwig
2018-04-25 15:48 ` [PATCH 13/40] netfilter/x_tables: simplify ѕeq_file code Christoph Hellwig
2018-04-25 15:48 ` [PATCH 14/40] net: move seq_file_single_net to <linux/seq_file_net.h> Christoph Hellwig
2018-04-25 15:48 ` [PATCH 15/40] proc: introduce proc_create_net{,_data} Christoph Hellwig
2018-04-25 15:48 ` [PATCH 16/40] proc: introduce proc_create_net_single Christoph Hellwig
2018-04-25 15:48 ` [PATCH 17/40] acpi/battery: simplify procfs code Christoph Hellwig
2018-04-25 15:48 ` [PATCH 18/40] sgi-gru: " Christoph Hellwig
2018-04-25 15:48 ` [PATCH 19/40] megaraid: " Christoph Hellwig
2018-04-25 15:48 ` [PATCH 20/40] sg: " Christoph Hellwig
2018-04-25 15:48 ` [PATCH 21/40] afs: " Christoph Hellwig
2018-04-30 23:20 ` [PATCH 0/3] afs: Network-namespacing and proc David Howells
2018-04-30 23:20 ` [PATCH 1/3] afs: Rearrange fs/afs/proc.c David Howells
2018-05-15 13:43 ` Christoph Hellwig
2018-04-30 23:20 ` [PATCH 2/3] proc: Add a way to make network proc files writable David Howells
2018-05-15 13:48 ` Christoph Hellwig
2018-05-15 14:16 ` David Howells
2018-04-30 23:20 ` [PATCH 3/3] afs: Implement namespacing David Howells
2018-05-15 13:53 ` Christoph Hellwig
2018-05-15 14:28 ` David Howells [this message]
2018-04-25 15:48 ` [PATCH 22/40] ext4: simplify procfs code Christoph Hellwig
2018-04-25 15:48 ` [PATCH 23/40] jfs: " Christoph Hellwig
2018-04-25 15:48 ` [PATCH 24/40] staging/rtl8192u: " Christoph Hellwig
2018-04-25 15:48 ` [PATCH 25/40] resource: switch to proc_create_seq_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 26/40] drbd: switch to proc_create_single Christoph Hellwig
2018-04-25 15:48 ` [PATCH 27/40] rtc/proc: switch to proc_create_single_data Christoph Hellwig
2018-04-25 18:25 ` Alexandre Belloni
2018-04-25 15:48 ` [PATCH 28/40] bonding: switch to proc_create_seq_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 29/40] hostap: switch to proc_create_{seq,single}_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 30/40] neigh: switch to proc_create_seq_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 31/40] netfilter/xt_hashlimit: switch to proc_create_{seq, single}_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 32/40] netfilter/x_tables: switch to proc_create_seq_private Christoph Hellwig
2018-04-25 15:48 ` [PATCH 33/40] bluetooth: switch to proc_create_seq_data Christoph Hellwig
2018-04-25 15:48 ` [PATCH 34/40] atm: simplify procfs code Christoph Hellwig
2018-05-05 12:51 ` Eric W. Biederman
2018-05-15 14:12 ` Christoph Hellwig
2018-05-17 1:15 ` Eric W. Biederman
2018-04-25 15:48 ` [PATCH 35/40] atm: switch to proc_create_seq_private Christoph Hellwig
2018-04-25 15:48 ` [PATCH 36/40] isdn: replace ->proc_fops with ->proc_show Christoph Hellwig
2018-04-25 15:48 ` [PATCH 37/40] proc: don't detour through seq->private to get the inode Christoph Hellwig
2018-04-25 15:48 ` [PATCH 38/40] ide: remove ide_driver_proc_write Christoph Hellwig
2018-05-05 13:09 ` Eric W. Biederman
2018-04-25 15:48 ` [PATCH 39/40] ide: replace ->proc_fops with ->proc_show Christoph Hellwig
2018-04-25 15:48 ` [PATCH 40/40] tty: " Christoph Hellwig
2018-04-30 13:19 ` [PATCH 04/40] proc: introduce proc_create_seq{,_data} David Howells
2018-05-15 14:42 ` Christoph Hellwig
2018-04-30 15:38 ` simplify procfs code for seq_file instances V2 David Howells
2018-05-06 17:19 ` Alexey Dobriyan
2018-05-06 17:45 ` Al Viro
2018-05-09 16:53 ` Alexey Dobriyan
2018-05-15 14:03 ` Christoph Hellwig
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