> David Chinner (DC) writes:
DC> So that mean's we'll have 2 separate mechanisms for marking
DC> pages as delalloc. XFS uses the BH_delay flag to indicate
DC> that a buffer (block) attached to the page is using delalloc.
>>
>> well, for blocksize=pagesize we can save 56 bytes on every
On Sat, Dec 23, 2006 at 10:09:57PM +0300, Alex Tomas wrote:
>
> Good day,
>
> > David Chinner (DC) writes:
>
> DC> So that mean's we'll have 2 separate mechanisms for marking
> DC> pages as delalloc. XFS uses the BH_delay flag to indicate
> DC> that a buffer (block) attached to the page
On Sat, Dec 23, 2006 at 09:27:18AM +, Christoph Hellwig wrote:
> On Sat, Dec 23, 2006 at 02:31:23PM +1100, David Chinner wrote:
> > > - ext4-delayed-allocation.patch
> > >delayed allocation itself, enabled by "delalloc" mount option.
> > >extents support is also required. currently it
On Sat, Dec 23, 2006 at 09:27:18AM +, Christoph Hellwig wrote:
On Sat, Dec 23, 2006 at 02:31:23PM +1100, David Chinner wrote:
- ext4-delayed-allocation.patch
delayed allocation itself, enabled by delalloc mount option.
extents support is also required. currently it works only
On Sat, Dec 23, 2006 at 10:09:57PM +0300, Alex Tomas wrote:
Good day,
David Chinner (DC) writes:
DC So that mean's we'll have 2 separate mechanisms for marking
DC pages as delalloc. XFS uses the BH_delay flag to indicate
DC that a buffer (block) attached to the page is using
David Chinner (DC) writes:
DC So that mean's we'll have 2 separate mechanisms for marking
DC pages as delalloc. XFS uses the BH_delay flag to indicate
DC that a buffer (block) attached to the page is using delalloc.
well, for blocksize=pagesize we can save 56 bytes on every page.
DC
> Christoph Hellwig (CH) writes:
CH> Note that recording delayed alloc state at a page granularity in addition
CH> to just the buffer heads has a lot of advantages aswell and would help
CH> xfs, too. But I think it makes a lot more sense to record it as a radix
CH> tree tag to speed up
Good day,
> David Chinner (DC) writes:
DC> So that mean's we'll have 2 separate mechanisms for marking
DC> pages as delalloc. XFS uses the BH_delay flag to indicate
DC> that a buffer (block) attached to the page is using delalloc.
well, for blocksize=pagesize we can save 56 bytes on
On Sat, Dec 23, 2006 at 02:31:23PM +1100, David Chinner wrote:
> > - ext4-delayed-allocation.patch
> >delayed allocation itself, enabled by "delalloc" mount option.
> >extents support is also required. currently it works only
> >with blocksize=pagesize.
>
> Ah, that's why you can get
On Sat, Dec 23, 2006 at 02:31:23PM +1100, David Chinner wrote:
- ext4-delayed-allocation.patch
delayed allocation itself, enabled by delalloc mount option.
extents support is also required. currently it works only
with blocksize=pagesize.
Ah, that's why you can get away with a
Good day,
David Chinner (DC) writes:
DC So that mean's we'll have 2 separate mechanisms for marking
DC pages as delalloc. XFS uses the BH_delay flag to indicate
DC that a buffer (block) attached to the page is using delalloc.
well, for blocksize=pagesize we can save 56 bytes on every page.
Christoph Hellwig (CH) writes:
CH Note that recording delayed alloc state at a page granularity in addition
CH to just the buffer heads has a lot of advantages aswell and would help
CH xfs, too. But I think it makes a lot more sense to record it as a radix
CH tree tag to speed up the gang
On Fri, Dec 22, 2006 at 11:20:08PM +0300, Alex Tomas wrote:
>
> Good day,
>
> probably the previous set of patches (including mballoc/lg)
> is too large. so, I reworked delayed allocation a bit so
> that it can be used on top of regular balloc, though it
> still can be used with extents-enabled
Good day,
probably the previous set of patches (including mballoc/lg)
is too large. so, I reworked delayed allocation a bit so
that it can be used on top of regular balloc, though it
still can be used with extents-enabled files only.
this time series contains just 3 patches:
-
Good day,
probably the previous set of patches (including mballoc/lg)
is too large. so, I reworked delayed allocation a bit so
that it can be used on top of regular balloc, though it
still can be used with extents-enabled files only.
this time series contains just 3 patches:
-
On Fri, Dec 22, 2006 at 11:20:08PM +0300, Alex Tomas wrote:
Good day,
probably the previous set of patches (including mballoc/lg)
is too large. so, I reworked delayed allocation a bit so
that it can be used on top of regular balloc, though it
still can be used with extents-enabled files
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