On Fri, Oct 10, 2014 at 3:12 AM, Jens Axboe wrote:
> On 10/09/2014 11:58 AM, Jeff Mahoney wrote:
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>> On 10/9/14, 12:13 PM, Ming Lei wrote:
>>> On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei
>>> wrote:
On Thu, Oct 9, 2014 at 10:26 PM, Jeff
On 10/09/2014 11:58 AM, Jeff Mahoney wrote:
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> On 10/9/14, 12:13 PM, Ming Lei wrote:
>> On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei
>> wrote:
>>> On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney
>>> wrote:
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On 10/9/14, 12:13 PM, Ming Lei wrote:
> On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei
> wrote:
>> On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney
>> wrote:
>>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA1
>>>
>>> On 10/9/14, 9:53 AM, Jeff Moyer wrote:
On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei wrote:
> On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney wrote:
>> -BEGIN PGP SIGNED MESSAGE-
>> Hash: SHA1
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>> On 10/9/14, 9:53 AM, Jeff Moyer wrote:
>>> Jeff Mahoney writes:
>>>
Commit 05f1dd53152173 (block: add queue flag for disabling
On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney wrote:
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> On 10/9/14, 9:53 AM, Jeff Moyer wrote:
>> Jeff Mahoney writes:
>>
>>> Commit 05f1dd53152173 (block: add queue flag for disabling SG
>>> merging) uses bi_vcnt to assign bio->bi_phys_segments
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On 10/9/14, 9:53 AM, Jeff Moyer wrote:
> Jeff Mahoney writes:
>
>> Commit 05f1dd53152173 (block: add queue flag for disabling SG
>> merging) uses bi_vcnt to assign bio->bi_phys_segments if sg
>> merging is disabled. When using device mapper on top
Jeff Mahoney writes:
> Commit 05f1dd53152173 (block: add queue flag for disabling SG merging) uses
> bi_vcnt to assign bio->bi_phys_segments if sg merging is disabled. When
> using device mapper on top of a blk-mq device (virtio_blk in my test),
> we'd end up overflowing the scatterlist in
Jeff Mahoney je...@suse.com writes:
Commit 05f1dd53152173 (block: add queue flag for disabling SG merging) uses
bi_vcnt to assign bio-bi_phys_segments if sg merging is disabled. When
using device mapper on top of a blk-mq device (virtio_blk in my test),
we'd end up overflowing the scatterlist
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On 10/9/14, 9:53 AM, Jeff Moyer wrote:
Jeff Mahoney je...@suse.com writes:
Commit 05f1dd53152173 (block: add queue flag for disabling SG
merging) uses bi_vcnt to assign bio-bi_phys_segments if sg
merging is disabled. When using device mapper on
On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney je...@suse.com wrote:
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On 10/9/14, 9:53 AM, Jeff Moyer wrote:
Jeff Mahoney je...@suse.com writes:
Commit 05f1dd53152173 (block: add queue flag for disabling SG
merging) uses bi_vcnt to assign
On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei ming@canonical.com wrote:
On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney je...@suse.com wrote:
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On 10/9/14, 9:53 AM, Jeff Moyer wrote:
Jeff Mahoney je...@suse.com writes:
Commit 05f1dd53152173 (block:
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On 10/9/14, 12:13 PM, Ming Lei wrote:
On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei ming@canonical.com
wrote:
On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney je...@suse.com
wrote:
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On 10/9/14, 9:53
On 10/09/2014 11:58 AM, Jeff Mahoney wrote:
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Hash: SHA1
On 10/9/14, 12:13 PM, Ming Lei wrote:
On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei ming@canonical.com
wrote:
On Thu, Oct 9, 2014 at 10:26 PM, Jeff Mahoney je...@suse.com
wrote:
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On Fri, Oct 10, 2014 at 3:12 AM, Jens Axboe ax...@kernel.dk wrote:
On 10/09/2014 11:58 AM, Jeff Mahoney wrote:
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Hash: SHA1
On 10/9/14, 12:13 PM, Ming Lei wrote:
On Thu, Oct 9, 2014 at 11:25 PM, Ming Lei ming@canonical.com
wrote:
On Thu, Oct 9, 2014 at
Commit 05f1dd53152173 (block: add queue flag for disabling SG merging) uses
bi_vcnt to assign bio->bi_phys_segments if sg merging is disabled. When
using device mapper on top of a blk-mq device (virtio_blk in my test),
we'd end up overflowing the scatterlist in __blk_bios_map_sg.
__bio_clone_fast
Commit 05f1dd53152173 (block: add queue flag for disabling SG merging) uses
bi_vcnt to assign bio-bi_phys_segments if sg merging is disabled. When
using device mapper on top of a blk-mq device (virtio_blk in my test),
we'd end up overflowing the scatterlist in __blk_bios_map_sg.
__bio_clone_fast
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