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| author | Darrick J. Wong <djwong@kernel.org> | 2021-06-08 09:10:01 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-06-08 09:10:01 -0700 |
| commit | ebf2e3372332267419527574c25e7820018272c1 (patch) | |
| tree | b7d96f7f17fe71cb9823ff2b942074eb6b81d4bd /fs/xfs/xfs_buf.h | |
| parent | 8124c8a6b35386f73523d27eacb71b5364a68c4c (diff) | |
| parent | 8bcac7448a942fa4662441a310c97d47cec24310 (diff) | |
| download | linux-ebf2e3372332267419527574c25e7820018272c1.tar.gz linux-ebf2e3372332267419527574c25e7820018272c1.tar.bz2 linux-ebf2e3372332267419527574c25e7820018272c1.zip | |
Merge tag 'xfs-buf-bulk-alloc-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs into xfs-5.14-merge2
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.
* tag 'xfs-buf-bulk-alloc-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: merge xfs_buf_allocate_memory
xfs: cleanup error handling in xfs_buf_get_map
xfs: get rid of xb_to_gfp()
xfs: simplify the b_page_count calculation
xfs: remove ->b_offset handling for page backed buffers
xfs: move page freeing into _xfs_buf_free_pages()
xfs: merge _xfs_buf_get_pages()
xfs: use alloc_pages_bulk_array() for buffers
xfs: use xfs_buf_alloc_pages for uncached buffers
xfs: split up xfs_buf_allocate_memory
Diffstat (limited to 'fs/xfs/xfs_buf.h')
| -rw-r--r-- | fs/xfs/xfs_buf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 459ca34f26f5..464dc548fa23 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -167,7 +167,8 @@ struct xfs_buf { atomic_t b_pin_count; /* pin count */ atomic_t b_io_remaining; /* #outstanding I/O requests */ unsigned int b_page_count; /* size of page array */ - unsigned int b_offset; /* page offset in first page */ + unsigned int b_offset; /* page offset of b_addr, + only for _XBF_KMEM buffers */ int b_error; /* error code on I/O */ /* |