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From: David Howells <dhowells@redhat.com>
To: David Wysochanski <dwysocha@redhat.com>
Cc: dhowells@redhat.com, Jeff Layton <jlayton@redhat.com>,
	Trond Myklebust <trondmy@hammerspace.com>,
	Anna Schumaker <anna.schumaker@netapp.com>,
	linux-nfs <linux-nfs@vger.kernel.org>,
	linux-cachefs@redhat.com
Subject: Re: [Linux-cachefs] [RFC PATCH v2 13/14] NFS: Call fscache_resize_cookie() when inode size changes due to setattr
Date: Thu, 30 Jul 2020 21:03:51 +0100
Message-ID: <538846.1596139431@warthog.procyon.org.uk> (raw)
In-Reply-To: <CALF+zOn9tSft_QkPaJ7w8v_OLTfon+acUB_W9MSb8EEMQGc94w@mail.gmail.com>

David Wysochanski <dwysocha@redhat.com> wrote:

> To be honest I'm not sure about needing a call to fscache_use/unuse_cookie()
> around the call to fscache_resize_cookie().  If the cookie has a
> refcount of 1 when it is created, and a file is never opened, so
> we never call fscache_use_cookie(), what might happen inside
> fscache_resize_cookie()?  The header on use_cookie() says

I've have afs_setattr() doing use/unuse on the cookie around resize.

David


  parent reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29 14:12 [RFC PATCH v2 0/14] Convert NFS to new FS-Cache iter API Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 01/14] NFS: Clean up nfs_readpage() and nfs_readpages() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 02/14] NFS: In nfs_readpage() only increment NFSIOS_READPAGES when read succeeds Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 03/14] NFS: Refactor nfs_readpage() and nfs_readpage_async() to use nfs_readdesc Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 04/14] NFS: Call readpage_async_filler() from nfs_readpage_async() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 05/14] NFS: Add nfs_pageio_complete_read() and remove nfs_readpage_async() Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 06/14] NFS: Allow internal use of read structs and functions Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 07/14] NFS: Convert nfs_readpage() and readpages() to new fscache API Dave Wysochanski
2020-08-04 17:41   ` [Linux-cachefs] " David Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 08/14] NFS: Convert fscache_acquire_cookie and fscache_relinquish_cookie Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 09/14] NFS: Only use and unuse an fscache cookie a single time based on NFS_INO_FSCACHE Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 10/14] NFS: Convert fscache invalidation and update aux_data and i_size Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 11/14] NFS: Call nfs_fscache_invalidate() when write extends the size of the file Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 12/14] NFS: Invalidate fscache for direct writes Dave Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 13/14] NFS: Call fscache_resize_cookie() when inode size changes due to setattr Dave Wysochanski
2020-07-30 18:39   ` [Linux-cachefs] " Jeff Layton
2020-07-30 19:23     ` David Wysochanski
2020-07-30 19:59       ` David Wysochanski
2020-07-30 20:03       ` David Howells [this message]
2020-07-30 21:07         ` David Wysochanski
2020-07-29 14:12 ` [RFC PATCH v2 14/14] NFS: Allow NFS use of new fscache API in build Dave Wysochanski

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