search for: firstfloor

I did some btrfs RTFS over the weeking and I have a hard time understanding what this code is attempting to do: 28 int btrfs_tree_lock(struct extent_buffer *eb) 29 { 30 int i; 31 32 if (mutex_trylock(&eb->mutex)) 33 return 0; 34 for (i = 0; i < 512; i++) { 35 cpu_relax(); 36 if

I've created a backing chain like this. FirstFollr.ovl is an overlay to Base.img and so on. Base.img (ok - Win 10 Installation starting) FirstFloor.ovl (ok - Win 10 Installation starting) SecondFloor.ovl (permission denied -> Base.img) => assumed Bug Roof.ovl (permission denied -> Base.img) => assumed Bug Using virsh / virt-manager, I can only start Base and FirstFloor. Starting Second and Roof are failing. What...

This patch adds a number of fp instructions needed for OS/2 to boot as a HVM guest on Intel/VT hardware. It appears to work fine, and OS/2 is now finally working on Intel/VT as well as AMD/SVM. I''m a little concerned about the "correctness" of the FSTSW emulation and the use of inline assembly directly using the corresponding ops for emulation. Wrt FSTSW, it is really two ops

While working on a database scaling problem using a SAP database test suite we discovered that these enterprise level large shared memory databases are very heavy users of mprotect(), to the extent that the performance overhead in current Xenolinux impacts scaling beyond a few cpus quite badly. A single cpu run under Xen has a nominal impact, but scaling out to 8 cpus results in a performance of

On Sun, 11 Apr 2010 18:03:00 +0300, Avi Kivity <avi@redhat.com> wrote: > On 04/09/2010 05:56 PM, Ben Gamari wrote: > > On Mon, 29 Mar 2010 00:08:58 +0200, Andi Kleen<andi@firstfloor.org> wrote: > > > >> Ben Gamari<bgamari.foss@gmail.com> writes: > >> ext4/XFS/JFS/btrfs should be better in this regard > >> > >> > > I am using btrfs, so yes, I was expecting things to be better. Unfortunately, > > the impr...

...worth the extra code. Signed-off-by: Kent Overstreet <koverstreet at google.com> Cc: Tejun Heo <tj at kernel.org> Cc: Oleg Nesterov <oleg at redhat.com> Cc: Christoph Lameter <cl at linux-foundation.org> Cc: Ingo Molnar <mingo at redhat.com> Cc: Andi Kleen <andi at firstfloor.org> Cc: Jens Axboe <axboe at kernel.dk> Cc: "Nicholas A. Bellinger" <nab at linux-iscsi.org> Signed-off-by: Nicholas Bellinger <nab at linux-iscsi.org> --- include/linux/idr.h | 53 +++++++++ lib/idr.c | 316 +++++++++++++++++++++++++++++++++++++++++++++...

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page...

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page...

Hi all, as suggested on the mailing list I have converted the updated LZO code into git, so please pull my "lzo-update" branch from git://github.com/markus-oberhumer/linux.git lzo-update You can browse the branch at https://github.com/markus-oberhumer/linux/compare/lzo-update I''d ask some official kernel maintainer for review and to push this into linux-next so that it

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi folks, This is an updated series for adding tag pre-allocation support of target fabric descriptor memory, utilizing Kent's latest per-cpu ida bits here, along with Christoph Lameter's latest comments: [PATCH 04/10] idr: Percpu ida http://marc.info/?l=linux-kernel&m=137160026006974&w=2 The first patch is a

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi folks, This is an updated series for adding tag pre-allocation support of target fabric descriptor memory, utilizing Kent's latest per-cpu ida bits here, along with Christoph Lameter's latest comments: [PATCH 04/10] idr: Percpu ida http://marc.info/?l=linux-kernel&m=137160026006974&w=2 The first patch is a

On Sun, Nov 07 2010 at 6:05pm -0500, Andi Kleen <andi@firstfloor.org> wrote: > On Sun, Nov 07, 2010 at 10:39:23PM +0100, Milan Broz wrote: > > On 11/07/2010 08:45 PM, Andi Kleen wrote: > > >> I read about barrier-problems and data getting to the partition when > > >> using dm-crypt and several layers so I don''t know...

This is a first draft of a subvolume quota implementation. It is possible to limit subvolumes and any group of subvolumes and also to track the amount of space that will get freed when deleting snapshots. The current version is functionally incomplete, with the main missing feature being the initial scan and rescan of an existing filesystem. I put some effort into writing an introduction into

Various versions of Linux under various circumstances select TSC as the primary clocksource for the kernel. This is especially true for uniprocessor kernels, but also in some cases for multiprocessor kernels. In most cases, this is because a processor bit (tsc_invariant? constant_tsc?) is passed through directly from the hardware via Xen and tested by the hvm guest and the result implies that

A character device for accessing (in user-space) pages that have been granted by other domains. Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...a <ander.conselvan.de.oliveira@intel.com> Anders Hedlund <anders.j.hedlund@gmail.com> Anders Kaseorg <andersk@mit.edu> Anders Larsen <al@alarsen.net> Anderson Lizardo <anderson.lizardo@openbossa.org> Andi Kleen <ak@linux.intel.com> Andi Kleen <andi@firstfloor.org> Andi Shyti <andi.shyti@gmail.com> Andiry Xu <andiry.xu@amd.com> Andiry Xu <andiry.xu@gmail.com> Andras Domokos <andras.domokos@nokia.com> Andre Guedes <aguedespe@gmail.com> Andre Guedes <andre.guedes@openbossa.org> Andre Heider <a.heider@...

...a <ander.conselvan.de.oliveira@intel.com> Anders Hedlund <anders.j.hedlund@gmail.com> Anders Kaseorg <andersk@mit.edu> Anders Larsen <al@alarsen.net> Anderson Lizardo <anderson.lizardo@openbossa.org> Andi Kleen <ak@linux.intel.com> Andi Kleen <andi@firstfloor.org> Andi Shyti <andi.shyti@gmail.com> Andiry Xu <andiry.xu@amd.com> Andiry Xu <andiry.xu@gmail.com> Andras Domokos <andras.domokos@nokia.com> Andre Guedes <aguedespe@gmail.com> Andre Guedes <andre.guedes@openbossa.org> Andre Heider <a.heider@...

...a <ander.conselvan.de.oliveira@intel.com> Anders Hedlund <anders.j.hedlund@gmail.com> Anders Kaseorg <andersk@mit.edu> Anders Larsen <al@alarsen.net> Anderson Lizardo <anderson.lizardo@openbossa.org> Andi Kleen <ak@linux.intel.com> Andi Kleen <andi@firstfloor.org> Andi Shyti <andi.shyti@gmail.com> Andiry Xu <andiry.xu@amd.com> Andiry Xu <andiry.xu@gmail.com> Andras Domokos <andras.domokos@nokia.com> Andre Guedes <aguedespe@gmail.com> Andre Guedes <andre.guedes@openbossa.org> Andre Heider <a.heider@...

...a <ander.conselvan.de.oliveira@intel.com> Anders Hedlund <anders.j.hedlund@gmail.com> Anders Kaseorg <andersk@mit.edu> Anders Larsen <al@alarsen.net> Anderson Lizardo <anderson.lizardo@openbossa.org> Andi Kleen <ak@linux.intel.com> Andi Kleen <andi@firstfloor.org> Andi Shyti <andi.shyti@gmail.com> Andiry Xu <andiry.xu@amd.com> Andiry Xu <andiry.xu@gmail.com> Andor Daam <andor.daam@googlemail.com> Andras Domokos <andras.domokos@nokia.com> Andre Guedes <aguedespe@gmail.com> Andre Guedes <andre.guedes...

...a <ander.conselvan.de.oliveira@intel.com> Anders Hedlund <anders.j.hedlund@gmail.com> Anders Kaseorg <andersk@mit.edu> Anders Larsen <al@alarsen.net> Anderson Lizardo <anderson.lizardo@openbossa.org> Andi Kleen <ak@linux.intel.com> Andi Kleen <andi@firstfloor.org> Andi Shyti <andi.shyti@gmail.com> Andiry Xu <andiry.xu@amd.com> Andiry Xu <andiry.xu@gmail.com> Andor Daam <andor.daam@googlemail.com> Andras Domokos <andras.domokos@nokia.com> Andre Guedes <aguedespe@gmail.com> Andre Guedes <andre.guedes...