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Date: Mon, 30 Apr 2018 19:51:17 -0700
From: Matthew Wilcox <willy@...radead.org>
To: linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [GIT] XArray v12
I've made version 12 of the XArray and page cache conversion available at
git://git.infradead.org/users/willy/linux-dax.git xarray-20180430
Changes since v11:
- At Goldwyn's request, renamed xas_for_each_tag -> xas_for_each_tagged,
xas_find_tag -> xas_find_tagged and xas_next_tag -> xas_next_tagged
- Fix performance regression (relative to radix_tree_tag_clear) when
using xas_clear_tag to clear an already-cleared tag.
- Use __test_and_set_bit in node_set_tag() rather than testing
node_get_tag() before calling node_set_tag().
- Added asm-generic/bitops/non-atomic.h to tools/include
- Removed xas_create() from the exported API. All callers can use xas_load
instead. It makes the callers more understanable and it reduces the
size of the API.
- Documented xas_create_range().
- Improved the documentation for xas_store(), explaining the return value
for a multi-index xa_state.
- Re-re-did the memfd patches on top of the current state of play.
- Used xas_set_order() to zero out all entries for a THP page instead
of a loop in page_cache_delete(). Goldwyn pointed out the loop was
ugly, and then so did everybody at LSFMM.
- Rewrote the nilfs patch to be closer to the original radix tree-based
code since I have no way of verifying it and the maintainer isn't
responding to requests to see if it works.
- f2fs dropped its copy of __set_page_dirty_buffers, so dropped my
modification of it.
- Fixed a missing irq-disable in shmem_free_swap().
Matthew Wilcox (63):
xarray: Replace exceptional entries
xarray: Change definition of sibling entries
xarray: Add definition of struct xarray
xarray: Define struct xa_node
xarray: Add documentation
xarray: Add xa_load
xarray: Add XArray tags
xarray: Add xa_store
xarray: Add xa_cmpxchg and xa_insert
xarray: Add xa_for_each
xarray: Add xa_extract
xarray: Add xa_destroy
xarray: Add xas_next and xas_prev
xarray: Add xas_create_range
xarray: Add MAINTAINERS entry
page cache: Rearrange address_space
page cache: Convert hole search to XArray
page cache: Add and replace pages using the XArray
page cache: Convert page deletion to XArray
page cache: Convert page cache lookups to XArray
page cache: Convert delete_batch to XArray
page cache: Remove stray radix comment
page cache: Convert filemap_range_has_page to XArray
mm: Convert page-writeback to XArray
mm: Convert workingset to XArray
mm: Convert truncate to XArray
mm: Convert add_to_swap_cache to XArray
mm: Convert delete_from_swap_cache to XArray
mm: Convert __do_page_cache_readahead to XArray
mm: Convert page migration to XArray
mm: Convert huge_memory to XArray
mm: Convert collapse_shmem to XArray
mm: Convert khugepaged_scan_shmem to XArray
pagevec: Use xa_tag_t
shmem: Convert replace to XArray
shmem: Convert shmem_confirm_swap to XArray
shmem: Convert find_swap_entry to XArray
shmem: Convert shmem_add_to_page_cache to XArray
shmem: Convert shmem_alloc_hugepage to XArray
shmem: Convert shmem_free_swap to XArray
shmem: Convert shmem_partial_swap_usage to XArray
memfd: Convert memfd_wait_for_pins to XArray
memfd: Convert memfd_tag_pins to XArray
shmem: Comment fixups
btrfs: Convert page cache to XArray
fs: Convert buffer to XArray
fs: Convert writeback to XArray
nilfs2: Convert to XArray
f2fs: Convert to XArray
lustre: Convert to XArray
dax: Fix use of zero page
dax: dax_insert_mapping_entry always succeeds
dax: Rename some functions
dax: Hash on XArray instead of mapping
dax: Convert dax_insert_pfn_mkwrite to XArray
dax: Convert __dax_invalidate_entry to XArray
dax: Convert dax writeback to XArray
dax: Convert page fault handlers to XArray
dax: Return fault code from dax_load_hole
page cache: Finish XArray conversion
radix tree: Remove unused functions
radix tree: Remove radix_tree_update_node_t
radix tree: Remove radix_tree_clear_tags
.clang-format | 1 -
Documentation/core-api/index.rst | 1 +
Documentation/core-api/xarray.rst | 360 +++++
MAINTAINERS | 12 +
arch/powerpc/include/asm/book3s/64/pgtable.h | 4 +-
arch/powerpc/include/asm/nohash/64/pgtable.h | 4 +-
drivers/gpu/drm/i915/i915_gem.c | 17 +-
drivers/staging/lustre/lustre/llite/glimpse.c | 12 +-
drivers/staging/lustre/lustre/mdc/mdc_request.c | 16 +-
fs/btrfs/compression.c | 6 +-
fs/btrfs/extent_io.c | 12 +-
fs/buffer.c | 14 +-
fs/dax.c | 725 ++++------
fs/ext4/inode.c | 2 +-
fs/f2fs/data.c | 2 +-
fs/f2fs/dir.c | 2 +-
fs/f2fs/inline.c | 4 +-
fs/f2fs/node.c | 9 +-
fs/fs-writeback.c | 25 +-
fs/gfs2/aops.c | 2 +-
fs/inode.c | 2 +-
fs/nfs/blocklayout/blocklayout.c | 2 +-
fs/nilfs2/btnode.c | 27 +-
fs/nilfs2/page.c | 29 +-
fs/proc/task_mmu.c | 2 +-
include/linux/fs.h | 63 +-
include/linux/pagemap.h | 10 +-
include/linux/pagevec.h | 8 +-
include/linux/radix-tree.h | 133 +-
include/linux/swap.h | 22 +-
include/linux/swapops.h | 19 +-
include/linux/xarray.h | 1009 ++++++++++++++
lib/Makefile | 2 +-
lib/idr.c | 66 +-
lib/radix-tree.c | 571 ++------
lib/xarray.c | 1688 +++++++++++++++++++++++
mm/filemap.c | 720 ++++------
mm/huge_memory.c | 17 +-
mm/khugepaged.c | 177 +--
mm/madvise.c | 2 +-
mm/memcontrol.c | 2 +-
mm/memfd.c | 105 +-
mm/migrate.c | 48 +-
mm/mincore.c | 2 +-
mm/page-writeback.c | 72 +-
mm/readahead.c | 10 +-
mm/shmem.c | 201 ++-
mm/swap.c | 6 +-
mm/swap_state.c | 119 +-
mm/truncate.c | 27 +-
mm/vmscan.c | 2 +-
mm/workingset.c | 71 +-
tools/include/asm-generic/bitops.h | 1 +
tools/include/asm-generic/bitops/atomic.h | 9 -
tools/include/asm-generic/bitops/non-atomic.h | 109 ++
tools/include/linux/spinlock.h | 13 +-
tools/testing/radix-tree/.gitignore | 2 +
tools/testing/radix-tree/Makefile | 15 +-
tools/testing/radix-tree/benchmark.c | 91 --
tools/testing/radix-tree/idr-test.c | 6 +-
tools/testing/radix-tree/linux/bug.h | 1 +
tools/testing/radix-tree/linux/kconfig.h | 1 +
tools/testing/radix-tree/linux/kernel.h | 5 +
tools/testing/radix-tree/linux/lockdep.h | 11 +
tools/testing/radix-tree/linux/rcupdate.h | 2 +
tools/testing/radix-tree/linux/xarray.h | 3 +
tools/testing/radix-tree/main.c | 12 +-
tools/testing/radix-tree/multiorder.c | 272 +---
tools/testing/radix-tree/regression1.c | 68 +-
tools/testing/radix-tree/regression3.c | 23 -
tools/testing/radix-tree/tag_check.c | 32 +-
tools/testing/radix-tree/test.c | 53 +-
tools/testing/radix-tree/test.h | 6 +
tools/testing/radix-tree/xarray-test.c | 597 ++++++++
74 files changed, 5113 insertions(+), 2683 deletions(-)
create mode 100644 Documentation/core-api/xarray.rst
create mode 100644 lib/xarray.c
create mode 100644 tools/include/asm-generic/bitops/non-atomic.h
create mode 100644 tools/testing/radix-tree/linux/kconfig.h
create mode 100644 tools/testing/radix-tree/linux/lockdep.h
create mode 100644 tools/testing/radix-tree/linux/xarray.h
create mode 100644 tools/testing/radix-tree/xarray-test.c
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