On Thu, May 13, 2010 at 08:19:21PM +0200, Andreas Philipp wrote:
> Hi,
>
> Well, I do not know if here is the right place to ask questions like
> this one so please tell me if it is not.
> The situation is the following: btrfs (data and metadata single) on
> /dev/sda3 (size 100GB) with two subvolu
On Thu, May 13, 2010 at 11:11:36AM -0700, Andrew Morton wrote:
> On Thu, 13 May 2010 14:01:37 -0400
> Josef Bacik wrote:
>
> > On Thu, May 13, 2010 at 11:26:39AM -0400, Christoph Hellwig wrote:
> > > On Thu, May 13, 2010 at 11:31:45AM -0400, Josef Bacik wrote:
> > > > AIO's aio_complete does kmap
Hi,
Well, I do not know if here is the right place to ask questions like
this one so please tell me if it is not.
The situation is the following: btrfs (data and metadata single) on
/dev/sda3 (size 100GB) with two subvolumes /one and /two. Both
subvolumes are mounted to /mnt/one resp. /mnt/two. Is
On Thu, 13 May 2010 14:01:37 -0400
Josef Bacik wrote:
> On Thu, May 13, 2010 at 11:26:39AM -0400, Christoph Hellwig wrote:
> > On Thu, May 13, 2010 at 11:31:45AM -0400, Josef Bacik wrote:
> > > AIO's aio_complete does kmap with KM_IRQ0/1 and it gets called in the same
> > > context as the btrfs c
On Thu, May 13, 2010 at 11:26:39AM -0400, Christoph Hellwig wrote:
> On Thu, May 13, 2010 at 11:31:45AM -0400, Josef Bacik wrote:
> > AIO's aio_complete does kmap with KM_IRQ0/1 and it gets called in the same
> > context as the btrfs completion handler, so if it's ok for aio_complete it
> > should
On Thu, May 13, 2010 at 07:24:48PM +0800, Victor Roetman wrote:
> I am running 2.6.34-rc5, testing was done with a 4G thumb drive.
>
> # mkfs.btrfs /dev/sdd1
>
> WARNING! - Btrfs v0.19-16-g075587c IS EXPERIMENTAL
> WARNING! - see http://btrfs.wiki.kernel.org before using
>
> fs created label (nu
If we failed to find the root subvol id, or the subvol=, we would
deactivate the locked super and close the devices. The problem is at this point
we have gotten the SB all setup, which includes setting super_operations, so
when we'd deactiveate the super, we'd do a close_ctree() which closes the
d
On Thu, 13 May 2010 11:31:45 -0400 Josef Bacik wrote:
> On Thu, May 13, 2010 at 11:14:30AM -0400, Christoph Hellwig wrote:
> > On Wed, May 12, 2010 at 04:40:53PM -0400, Josef Bacik wrote:
> > > V1->V2
> > > -Use __blockdev_direct_IO instead of helper
> > > -Use KM_IRQ0 for kmap instead of KM_USER
On Thu, May 13, 2010 at 11:26:39AM -0400, Christoph Hellwig wrote:
> On Thu, May 13, 2010 at 11:31:45AM -0400, Josef Bacik wrote:
> > AIO's aio_complete does kmap with KM_IRQ0/1 and it gets called in the same
> > context as the btrfs completion handler, so if it's ok for aio_complete it
> > should
On Thu, May 13, 2010 at 11:31:45AM -0400, Josef Bacik wrote:
> AIO's aio_complete does kmap with KM_IRQ0/1 and it gets called in the same
> context as the btrfs completion handler, so if it's ok for aio_complete it
> should be ok for btrfs right? Thanks,
aio_complete does a spin_lock_irqsave befo
On Thu, May 13, 2010 at 11:14:30AM -0400, Christoph Hellwig wrote:
> On Wed, May 12, 2010 at 04:40:53PM -0400, Josef Bacik wrote:
> > V1->V2
> > -Use __blockdev_direct_IO instead of helper
> > -Use KM_IRQ0 for kmap instead of KM_USER0
>
> I still don't think this is correct. The completion can co
On Wed, May 12, 2010 at 04:40:53PM -0400, Josef Bacik wrote:
> V1->V2
> -Use __blockdev_direct_IO instead of helper
> -Use KM_IRQ0 for kmap instead of KM_USER0
I still don't think this is correct. The completion can come from
softirq and hardirq context, and possibly even normal process context.
I am running 2.6.34-rc5, testing was done with a 4G thumb drive.
# mkfs.btrfs /dev/sdd1
WARNING! - Btrfs v0.19-16-g075587c IS EXPERIMENTAL
WARNING! - see http://btrfs.wiki.kernel.org before using
fs created label (null) on /dev/sdd1
nodesize 4096 leafsize 4096 sectorsize 4096 size 3.73GB
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