Re: [GIT PULL v2] xfs: buffer cache bulk page allocation

["Darrick J. Wong" <djwong@kernel.org>]

On Tue, Jun 08, 2021 at 02:14:37PM +1000, Dave Chinner wrote:
> Hi Darrick,
> 
> As we talked about on IRC, I have (force) updated the branch and tag
> containing the buffer cache bulk page allocation series to correct
> the errors in the commit metadata. This version correctly attributes
> all of Christoph's patches, fixes a couple of minor typos and adds a
> missing committer SoB to another of Christoph's patches. There are
> no code changes in this update.
> 
> When you next update the for-next branch, can you please pull the
> updates from the tag below?

Pulled, thanks.

--D

> 
> Cheers,
> 
> Dave.
> 
> The following changes since commit d07f6ca923ea0927a1024dfccafc5b53b61cfecc:
> 
>   Linux 5.13-rc2 (2021-05-16 15:27:44 -0700)
> 
> are available in the Git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git tags/xfs-buf-bulk-alloc-tag
> 
> for you to fetch changes up to 8bcac7448a942fa4662441a310c97d47cec24310:
> 
>   xfs: merge xfs_buf_allocate_memory (2021-06-07 11:50:48 +1000)
> 
> ----------------------------------------------------------------
> xfs: buffer cache bulk page allocation
> 
> This patchset makes use of the new bulk page allocation interface to
> reduce the overhead of allocating large numbers of pages in a
> loop.
> 
> The first two patches are refactoring buffer memory allocation and
> converting the uncached buffer path to use the same page allocation
> path, followed by converting the page allocation path to use bulk
> allocation.
> 
> The rest of the patches are then consolidation of the page
> allocation and freeing code to simplify the code and remove a chunk
> of unnecessary abstraction. This is largely based on a series of
> changes made by Christoph Hellwig.
> 
> ----------------------------------------------------------------
> Christoph Hellwig (3):
>       xfs: remove ->b_offset handling for page backed buffers
>       xfs: simplify the b_page_count calculation
>       xfs: cleanup error handling in xfs_buf_get_map
> 
> Dave Chinner (7):
>       xfs: split up xfs_buf_allocate_memory
>       xfs: use xfs_buf_alloc_pages for uncached buffers
>       xfs: use alloc_pages_bulk_array() for buffers
>       xfs: merge _xfs_buf_get_pages()
>       xfs: move page freeing into _xfs_buf_free_pages()
>       xfs: get rid of xb_to_gfp()
>       xfs: merge xfs_buf_allocate_memory
> 
>  fs/xfs/libxfs/xfs_ag.c |   1 -
>  fs/xfs/xfs_buf.c       | 305 ++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------------------------------------
>  fs/xfs/xfs_buf.h       |   3 +-
>  3 files changed, 120 insertions(+), 189 deletions(-)
> 
> -- 
> Dave Chinner
> david@fromorbit.com