linux/Documentation/core-api
Matthew Wilcox (Oracle) 5232c63f46 mm: Make compound_pincount always available
Move compound_pincount from the third page to the second page, which
means it's available for all compound pages.  That lets us delete
hpage_pincount_available().

On 32-bit systems, there isn't enough space for both compound_pincount
and compound_nr in the second page (it would collide with page->private,
which is in use for pages in the swap cache), so revert the optimisation
of storing both compound_order and compound_nr on 32-bit systems.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
2022-03-21 12:56:35 -04:00
..
irq irq: remove handle_domain_{irq,nmi}() 2021-10-26 10:13:31 +01:00
assoc_array.rst Documentation: Use "while" instead of "whilst" 2018-11-20 09:30:43 -07:00
boot-time-mm.rst docs/boot-time-mm: remove bootmem documentation 2018-10-31 08:54:16 -07:00
bus-virt-phys-mapping.rst docs: core-api: avoid using ReST :doc:foo markup 2021-06-17 13:24:37 -06:00
cachetlb.rst mm: Add flush_dcache_folio() 2021-10-18 07:49:36 -04:00
circular-buffers.rst doc: Remove ".vnet" from paulmck email addresses 2019-05-28 09:02:57 -07:00
cpu_hotplug.rst Documentation: core-api/cpuhotplug: Rewrite the API section 2021-09-11 00:41:21 +02:00
debug-objects.rst doc: debugobjects: actually pull in the kerneldoc comments 2016-11-29 14:44:14 -07:00
debugging-via-ohci1394.rst docs: debugging-via-ohci1394.txt: add it to the core-api book 2020-05-15 11:59:17 -06:00
dma-api-howto.rst docs: move DMA kAPI to Documentation/core-api 2020-05-15 11:51:54 -06:00
dma-api.rst docs: core-api: avoid using ReST :doc:foo markup 2021-06-17 13:24:37 -06:00
dma-attributes.rst dma-mapping: add a new dma_alloc_pages API 2020-09-25 06:20:47 +02:00
dma-isa-lpc.rst docs: core-api: avoid using ReST :doc:foo markup 2021-06-17 13:24:37 -06:00
errseq.rst errseq: Add to documentation tree 2018-01-01 12:40:27 -07:00
genalloc.rst lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr 2019-12-04 19:44:13 -08:00
generic-radix-tree.rst generic radix trees 2019-03-12 10:04:02 -07:00
genericirq.rst docs: genericirq.rst: don't document chip.c functions twice 2020-10-15 07:49:41 +02:00
gfp_mask-from-fs-io.rst docs: core-api/gfp_mask-from-fs-io: add a label for cross-referencing 2018-09-20 11:02:32 -06:00
idr.rst Core-api: Documentation: Replace deprecated :c:func: Usage 2020-08-11 10:26:08 -06:00
index.rst docs: core-api: avoid using ReST :doc:foo markup 2021-06-17 13:24:37 -06:00
kernel-api.rst Convert xfs/iomap to use folios 2022-01-12 12:51:41 -08:00
kobject.rst kobject documentation: remove default_attrs information 2022-01-07 11:23:37 +01:00
kref.rst docs: move the kref doc into the core-api book 2020-05-15 12:02:19 -06:00
librs.rst docs-rst: convert librs book to ReST 2017-05-16 08:44:16 -03:00
local_ops.rst timer: Remove init_timer() interface 2017-11-21 15:57:09 -08:00
memory-allocation.rst mm: slab: provide krealloc_array() 2020-12-15 12:13:37 -08:00
memory-hotplug.rst mm/memory_hotplug: remove HIGHMEM leftovers 2021-11-06 13:30:42 -07:00
mm-api.rst mm/util: Add folio_mapping() and folio_file_mapping() 2021-09-27 09:27:30 -04:00
packing.rst docs: packing: move it to core-api book and adjust markups 2019-07-31 13:30:01 -06:00
padata.rst padata: fold padata_alloc_possible() into padata_alloc() 2020-07-23 17:34:18 +10:00
pin_user_pages.rst mm: Make compound_pincount always available 2022-03-21 12:56:35 -04:00
printk-basics.rst printk: Move the printk() kerneldoc comment to its new home 2021-07-26 12:36:44 +02:00
printk-formats.rst vsprintf: Update %pGp documentation about that it prints hex value 2021-11-01 15:55:06 +01:00
protection-keys.rst x86/Kconfig: Update config and kernel doc for MPK feature on AMD 2020-05-28 18:27:40 +02:00
rbtree.rst docs: rbtree.rst: Fix a typo 2021-03-25 11:38:51 -06:00
refcount-vs-atomic.rst docs: remove :c:func: from refcount-vs-atomic.rst 2019-10-07 09:08:56 -06:00
symbol-namespaces.rst docs/core-api: Consistent code style 2021-05-03 16:52:50 -06:00
this_cpu_ops.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
timekeeping.rst docs: timekeeping: Use correct prototype for deprecated functions 2020-04-15 14:48:26 -06:00
tracepoint.rst doc: Sphinxify the tracepoint docbook 2016-11-29 14:44:23 -07:00
unaligned-memory-access.rst docs: move other kAPI documents to core-api 2020-06-26 11:33:42 -06:00
workqueue.rst workqueue: doc: Call out the non-reentrance conditions 2021-10-25 07:18:40 -10:00
xarray.rst XArray: add xas_split 2020-10-16 11:11:15 -07:00