From: David Sterba <dsterba@suse.cz>
To: Omar Sandoval <osandov@osandov.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Chris Mason <clm@fb.com>, Josef Bacik <jbacik@fb.com>,
Trond Myklebust <trond.myklebust@primarydata.com>,
Christoph Hellwig <hch@infradead.org>,
David Sterba <dsterba@suse.cz>,
linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-nfs@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v3 6/7] btrfs: add EXTENT_FLAG_SWAPFILE
Date: Fri, 12 Dec 2014 11:32:59 +0100 [thread overview]
Message-ID: <20141212103259.GM27601@twin.jikos.cz> (raw)
In-Reply-To: <f489d4ad85df4039f3a84f1a2f89735c9a1cf88d.1418173063.git.osandov@osandov.com>
On Tue, Dec 09, 2014 at 05:45:47PM -0800, Omar Sandoval wrote:
> Extents mapping a swap file should remain pinned in memory in order to
> avoid doing allocations to look up an extent when we're already low on
> memory. Rather than overloading EXTENT_FLAG_PINNED, add a new flag
> specifically for this purpose.
>
> Signed-off-by: Omar Sandoval <osandov@osandov.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
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next prev parent reply other threads:[~2014-12-12 10:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-10 1:45 [RFC PATCH v3 0/7] btrfs: implement swap file support Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 1/7] direct-io: don't dirty ITER_BVEC pages on read Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 2/7] nfs: don't dirty ITER_BVEC pages read through direct I/O Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 3/7] swap: use direct I/O for SWP_FILE swap_readpage Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 4/7] vfs: update swap_{,de}activate documentation Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 5/7] btrfs: prevent ioctls from interfering with a swap file Omar Sandoval
2014-12-10 1:45 ` [RFC PATCH v3 6/7] btrfs: add EXTENT_FLAG_SWAPFILE Omar Sandoval
2014-12-12 10:32 ` David Sterba [this message]
2014-12-10 1:45 ` [RFC PATCH v3 7/7] btrfs: enable swap file support Omar Sandoval
2014-12-12 10:51 ` David Sterba
2014-12-12 20:00 ` Omar Sandoval
2014-12-12 10:32 ` [RFC PATCH v3 0/7] btrfs: implement " David Sterba
2014-12-12 20:15 ` Omar Sandoval
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