From: Christoph Hellwig <hch@infradead.org>
To: Keith Packard <keithp@keithp.com>
Cc: Christoph Hellwig <hch@infradead.org>,
Eric Anholt <eric@anholt.net>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Export shmem_file_setup and shmem_getpage for DRM-GEM
Date: Sun, 10 Aug 2008 21:23:47 -0400 [thread overview]
Message-ID: <20080811012347.GA27264@infradead.org> (raw)
In-Reply-To: <1217631718.23437.290.camel@koto.keithp.com>
On Fri, Aug 01, 2008 at 04:01:58PM -0700, Keith Packard wrote:
> On Fri, 2008-08-01 at 16:50 -0400, Christoph Hellwig wrote:
>
> > Nope. Let the userspace protion create a file in shmfs instead of
> > adding fugly kernel interfaces hdiing this fact.
>
> I can't create that many files; I need thousands of them.
shmfs is perfectly happy to have thousands of files, there are workloads
that have a lot more than that. Note that in other subthreads there is
the assumption that all of them are open and in the fd table at the same
time. I haven't really seen a good explanation for that - objects on
shmfs are persistant until deleted, and when you keep your parent
directory fd open an openat to get at the actual object is cheap.
next prev parent reply other threads:[~2008-08-11 1:23 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-01 6:58 [PATCH] PCI: Add pci_read_base() API Eric Anholt
2008-08-01 6:58 ` [PATCH] Export shmem_file_setup and shmem_getpage for DRM-GEM Eric Anholt
2008-08-01 6:58 ` [PATCH] drm: Add GEM ("graphics execution manager") to i915 driver Eric Anholt
2008-08-01 15:44 ` Randy Dunlap
2008-08-01 18:11 ` Keith Packard
2008-08-06 1:11 ` Eric Anholt
2008-08-01 7:10 ` [PATCH] Export shmem_file_setup and shmem_getpage for DRM-GEM Eric Anholt
2008-08-01 10:57 ` Hugh Dickins
2008-08-01 18:06 ` Keith Packard
2008-08-01 20:50 ` Christoph Hellwig
2008-08-01 23:01 ` Keith Packard
2008-08-03 12:49 ` John Stoffel
2008-08-03 17:52 ` Keith Packard
2008-08-03 23:35 ` files/process scaling problem? (was: [PATCH] Export shmem_file_setup and shmem_getpage for DRM-GEM) Ingo Oeser
2008-08-04 0:19 ` Keith Packard
2008-08-04 8:19 ` Alan Cox
2008-08-04 13:51 ` Arjan van de Ven
2008-08-04 14:11 ` Alan Cox
2008-08-04 16:38 ` Arjan van de Ven
2008-08-04 16:58 ` Keith Packard
2008-08-04 21:46 ` Ingo Oeser
2008-08-04 22:20 ` Dave Airlie
2008-08-05 0:34 ` Keith Packard
2008-08-11 1:23 ` Christoph Hellwig [this message]
2008-08-11 3:03 ` [PATCH] Export shmem_file_setup for DRM-GEM Keith Packard
2008-08-04 1:54 ` [PATCH] Export shmem_file_setup and shmem_getpage " Keith Packard
2008-08-04 9:02 ` Nick Piggin
2008-08-04 10:26 ` Keith Packard
2008-08-04 10:43 ` Nick Piggin
2008-08-04 11:45 ` Keith Packard
2008-08-04 17:09 ` Hugh Dickins
2008-08-04 17:25 ` Keith Packard
2008-08-04 18:39 ` Hugh Dickins
2008-08-04 19:20 ` Keith Packard
2008-08-04 19:55 ` Hugh Dickins
2008-08-04 21:37 ` Keith Packard
2008-08-05 2:25 ` John Stoffel
2008-08-05 4:28 ` Keith Packard
2008-08-06 16:20 ` Stephane Marchesin
2008-08-06 17:24 ` Arjan van de Ven
2008-08-06 17:32 ` Stephane Marchesin
2008-08-06 17:56 ` Keith Packard
2008-08-06 18:09 ` Stephane Marchesin
2008-08-06 21:22 ` Keith Packard
2008-08-07 2:16 ` Stephane Marchesin
2008-08-07 2:57 ` Keith Packard
2008-08-11 1:34 ` Christoph Hellwig
2008-08-05 4:28 ` Nick Piggin
2008-08-11 1:30 ` Christoph Hellwig
2008-08-04 21:58 ` Keith Packard
2008-08-04 22:22 ` Dave Airlie
2008-08-05 4:43 ` Nick Piggin
2008-08-05 5:19 ` Keith Packard
2008-08-07 0:45 ` Jesse Barnes
2008-08-19 1:17 ` Dave Airlie
2008-08-19 10:00 ` Nick Piggin
2008-08-19 16:46 ` Keith Packard
2008-08-19 18:50 ` Jesse Barnes
2008-08-21 13:42 ` Jerome Glisse
2008-08-21 16:15 ` Jesse Barnes
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