From: Sarah Sharp
On Wed, Dec 18, 2013 at 11:24:47AM -, David Laight wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
...
Hi David,
The patch looks good in general and applies fine. However, in testing
this with a USB mass storage device, I ran
From: 'David Cohen'
...
The new kmalloc is going to be n * sizeof(struct) - n * sizeof(pointer)
bigger. I don't know what is the usual range of values for n, but my
experience with android devices with non-abundant memory size is that
they are sensible to kmalloc PAGE_SIZE.
It is
On Wed, Jan 08, 2014 at 09:25:42AM +, David Laight wrote:
From: 'David Cohen'
...
The new kmalloc is going to be n * sizeof(struct) - n *
sizeof(pointer)
bigger. I don't know what is the usual range of values for n, but my
experience with android devices with non-abundant
From: 'David Cohen'
...
I actually don't know what's the regular range of 'td_cnt'. But what got my
attention was this comment from patch description:
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
an
On Wed, Jan 08, 2014 at 03:29:31PM +, David Laight wrote:
From: 'David Cohen'
...
I actually don't know what's the regular range of 'td_cnt'. But what got my
attention was this comment from patch description:
The only possible downside is for isochronous tranfers with 64 td
when
From: 'David Cohen'
On Mon, Jan 06, 2014 at 09:26:20AM +, David Laight wrote:
From: David Cohen
On Fri, Dec 20, 2013 at 09:26:35AM -, David Laight wrote:
From: David Cohen
The effect of this change is really to remove the first allocation and
add 8 bytes (or maybe a
On Tue, Jan 07, 2014 at 09:29:30AM +, David Laight wrote:
From: 'David Cohen'
On Mon, Jan 06, 2014 at 09:26:20AM +, David Laight wrote:
From: David Cohen
On Fri, Dec 20, 2013 at 09:26:35AM -, David Laight wrote:
From: David Cohen
The effect of this change is
On Mon, Jan 06, 2014 at 09:26:20AM +, David Laight wrote:
From: David Cohen
On Fri, Dec 20, 2013 at 09:26:35AM -, David Laight wrote:
From: David Cohen
The effect of this change is really to remove the first allocation and
add 8 bytes (or maybe a pointer) to the start of the
From: Steve Calfee
On Wed, Dec 18, 2013 at 3:24 AM, David Laight david.lai...@aculab.com wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit
From: David Cohen
On Wed, Dec 18, 2013 at 11:24:47AM -, David Laight wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
On Fri, Dec 20, 2013 at 09:26:35AM -, David Laight wrote:
From: David Cohen
On Wed, Dec 18, 2013 at 11:24:47AM -, David Laight wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64
On Wed, Dec 18, 2013 at 11:24:47AM -, David Laight wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
an additional page.
On Wed, Dec 18, 2013 at 3:24 AM, David Laight david.lai...@aculab.com wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
an
On Wed, Dec 18, 2013 at 11:24:47AM -, David Laight wrote:
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
an additional page.
This saves a kzalloc() call on every transfer and some memory
indirections.
The only possible downside is for isochronous tranfers with 64 td
when the allocate is 8+4096 bytes (on 64bit systems) so requires
an additional page.
Signed-off-by: David Laight david.lai...@aculab.com
---
v2: Added
15 matches
Mail list logo
