On Fri, Apr 20, 2007 at 12:10:43PM -0700, Christoph Lameter wrote:
> On Fri, 20 Apr 2007, Dave Kleikamp wrote:
>
> > On Fri, 2007-04-20 at 12:05 +0100, Mel Gorman wrote:
> >
> > > comments about missing page_cache_size() covered elsewhere. However, I
> > > note that Dave Kleikamp might be interes
On Fri, 2007-04-20 at 12:10 -0700, Christoph Lameter wrote:
> On Fri, 20 Apr 2007, Dave Kleikamp wrote:
> > Yeah. I'm working on patches for storing file tails in buffers
> > allocated from the slab cache, and the tail will be represented by a
> > fake struct page. (This is primarily for kernels
On Fri, 20 Apr 2007, Dave Kleikamp wrote:
> On Fri, 2007-04-20 at 12:05 +0100, Mel Gorman wrote:
>
> > comments about missing page_cache_size() covered elsewhere. However, I
> > note that Dave Kleikamp might be interested in this changing of
> > page_cache_size() from the perspective of page cach
On Fri, 2007-04-20 at 12:05 +0100, Mel Gorman wrote:
> comments about missing page_cache_size() covered elsewhere. However, I
> note that Dave Kleikamp might be interested in this changing of
> page_cache_size() from the perspective of page cache tails. I've added
> him to the cc so he can take a
On Fri, Apr 20 2007, Christoph Lameter wrote:
> On Fri, 20 Apr 2007, Jens Axboe wrote:
>
> > This works fine as long as you are in the submitter context, but once
> > you pass the into the block layer, we don't have any way to find the
> > address space (at least we don't want to). Would something
On Fri, 20 Apr 2007, Jens Axboe wrote:
> This works fine as long as you are in the submitter context, but once
> you pass the into the block layer, we don't have any way to find the
> address space (at least we don't want to). Would something like this be
> workable, name withstanding:
>
> static
On (19/04/07 09:35), Christoph Lameter didst pronounce:
> Variable Order Page Cache: Fixup fallback functions
>
> Fixup the fallback function in fs/libfs.c to be able to handle
> higher order page cache pages.
>
> Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>
>
> ---
> fs/libfs.c | 16
On Thu, Apr 19 2007, Christoph Lameter wrote:
> +static inline int page_cache_shift(struct address_space *a)
> +{
> + return a->order + PAGE_CACHE_SHIFT;
> +}
> +
> +static inline unsigned long page_cache_size(struct address_space *a)
> +{
> + return PAGE_CACHE_SIZE << a->order;
> +}
This
On Fri, 20 Apr 2007, David Chinner wrote:
> I think PAGE_CACHE_SIZE is a redundant define with these
> modifications. The page cache size in now variable and it is based
> on a multiple of PAGE_SIZE. Hence I suggest that PAGE_CACHE_SIZE and
> it's derivitives should be made to go away completely
On Thu, Apr 19, 2007 at 12:10:34PM -0700, Christoph Lameter wrote:
> Variable Order Page Cache: Add functions to establish sizes
>
> We use the macros PAGE_CACHE_SIZE PAGE_CACHE_SHIFT PAGE_CACHE_MASK
> and PAGE_CACHE_ALIGN in various places in the kernel. These are now
> the base page size but we
On Thu, 19 Apr 2007, Adam Litke wrote:
> On 4/19/07, Christoph Lameter <[EMAIL PROTECTED]> wrote:
> > @@ -331,11 +331,15 @@ int simple_prepare_write(struct file *fi
> > unsigned from, unsigned to)
> > {
> > if (!PageUptodate(page)) {
> > - if (to - fr
On 4/19/07, Christoph Lameter <[EMAIL PROTECTED]> wrote:
@@ -331,11 +331,15 @@ int simple_prepare_write(struct file *fi
unsigned from, unsigned to)
{
if (!PageUptodate(page)) {
- if (to - from != PAGE_CACHE_SIZE) {
+ if (to - from != pa
Variable Order Page Cache: Fixup fallback functions
Fixup the fallback function in fs/libfs.c to be able to handle
higher order page cache pages.
Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>
---
fs/libfs.c | 16 ++--
1 file changed, 10 insertions(+), 6 deletions(-)
Index:
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