On Wed, 5 May 2010 03:33:43 pm Neil Brown wrote:
On Wed, 5 May 2010 14:28:41 +0930
Rusty Russell ru...@rustcorp.com.au wrote:
On Wed, 5 May 2010 05:47:05 am Jamie Lokier wrote:
Jens Axboe wrote:
On Tue, May 04 2010, Rusty Russell wrote:
ISTR someone mentioning a desire for such
Rusty Russell wrote:
Seems over-zealous.
If the recovery_header held a strong checksum of the recovery_data you would
not need the first fsync, and as long as you have two places to write
recovery
data, you don't need the 3rd and 4th syncs.
Just:
Rusty Russell wrote:
On Wed, 5 May 2010 05:47:05 am Jamie Lokier wrote:
Jens Axboe wrote:
On Tue, May 04 2010, Rusty Russell wrote:
ISTR someone mentioning a desire for such an API years ago, so CC'ing
the
usual I/O suspects...
It would be nice to have a more fuller API
On Wed, 5 May 2010 14:28:41 +0930
Rusty Russell ru...@rustcorp.com.au wrote:
On Wed, 5 May 2010 05:47:05 am Jamie Lokier wrote:
Jens Axboe wrote:
On Tue, May 04 2010, Rusty Russell wrote:
ISTR someone mentioning a desire for such an API years ago, so CC'ing
the
usual I/O
On 05/04/2010 07:38 AM, Rusty Russell wrote:
On Fri, 19 Feb 2010 08:52:20 am Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a
On Tue, May 04 2010, Rusty Russell wrote:
On Fri, 19 Feb 2010 08:52:20 am Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be
On Tue, May 04, 2010 at 02:08:24PM +0930, Rusty Russell wrote:
On Fri, 19 Feb 2010 08:52:20 am Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a first step to cleaning them.
The
On Tue, Apr 20, 2010 at 02:46:35AM +0100, Jamie Lokier wrote:
Does this mean that virtio-blk supports all three combinations?
1. FLUSH that isn't a barrier
2. FLUSH that is also a barrier
3. Barrier that is not a flush
1 is good for fsync-like operations;
2 is good for
On Tue, May 04, 2010 at 08:54:59PM +0200, Christoph Hellwig wrote:
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems
On Tue, May 04, 2010 at 09:56:18PM +0300, Michael S. Tsirkin wrote:
On Tue, May 04, 2010 at 08:54:59PM +0200, Christoph Hellwig wrote:
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph,
On Tue, May 04, 2010 at 08:56:14PM +0200, Christoph Hellwig wrote:
On Tue, Apr 20, 2010 at 02:46:35AM +0100, Jamie Lokier wrote:
Does this mean that virtio-blk supports all three combinations?
1. FLUSH that isn't a barrier
2. FLUSH that is also a barrier
3. Barrier that is not
Jens Axboe wrote:
On Tue, May 04 2010, Rusty Russell wrote:
ISTR someone mentioning a desire for such an API years ago, so CC'ing the
usual I/O suspects...
It would be nice to have a more fuller API for this, but the reality is
that only the flush approach is really workable. Even just
Rusty Russell wrote:
On Fri, 19 Feb 2010 08:52:20 am Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a first step to
On Wed, 5 May 2010 05:47:05 am Jamie Lokier wrote:
Jens Axboe wrote:
On Tue, May 04 2010, Rusty Russell wrote:
ISTR someone mentioning a desire for such an API years ago, so CC'ing the
usual I/O suspects...
It would be nice to have a more fuller API for this, but the reality is
On Wed, 5 May 2010 04:24:59 am Christoph Hellwig wrote:
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts
On Fri, 19 Feb 2010 08:52:20 am Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a first step to cleaning them.
ISTR Christoph
On Tue, Apr 20, 2010 at 12:26:27AM +0300, Michael S. Tsirkin wrote:
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block.
Any comments?
Rusty?
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On Tue, Apr 20, 2010 at 02:22:58PM +0100, Paul Brook wrote:
Does this mean that virtio-blk supports all three combinations?
1. FLUSH that isn't a barrier
2. FLUSH that is also a barrier
3. Barrier that is not a flush
1 is good for fsync-like operations;
2 is good for
Does this mean that virtio-blk supports all three combinations?
1. FLUSH that isn't a barrier
2. FLUSH that is also a barrier
3. Barrier that is not a flush
1 is good for fsync-like operations;
2 is good for journalling-like ordered operations.
3 sounds like it doesn't mean a
On Fri, Feb 19, 2010 at 12:22:20AM +0200, Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block.
Any comments?
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Michael S. Tsirkin wrote:
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a first step to cleaning them.
One issue I struggled with especially is how
I took a stub at documenting CMD and FLUSH request types in virtio
block. Christoph, could you look over this please?
I note that the interface seems full of warts to me,
this might be a first step to cleaning them.
One issue I struggled with especially is how type
field mixes bits and non-bit
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