Kirill A. Shutemov
5e0a760b44
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
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commit 23baf831a3https://lkml.kernel.org/r/20231228144704.14033-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com >
Cc: Linus Torvalds <torvalds@linux-foundation.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
2024-01-08 15:27:15 -08:00
Kirill A. Shutemov
23baf831a3
mm, treewide: redefine MAX_ORDER sanely
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MAX_ORDER currently defined as number of orders page allocator supports:
user can ask buddy allocator for page order between 0 and MAX_ORDER-1.
This definition is counter-intuitive and lead to number of bugs all over
the kernel.
Change the definition of MAX_ORDER to be inclusive: the range of orders
user can ask from buddy allocator is 0..MAX_ORDER now.
[kirill@shutemov.name: fix min() warning]
Link: https://lkml.kernel.org/r/20230315153800.32wib3n5rickolvh@box
[akpm@linux-foundation.org: fix another min_t warning]
[kirill@shutemov.name: fixups per Zi Yan]
Link: https://lkml.kernel.org/r/20230316232144.b7ic4cif4kjiabws@box.shutemov.name
[akpm@linux-foundation.org: fix underlining in docs]
Link: https://lore.kernel.org/oe-kbuild-all/202303191025.VRCTk6mP-lkp@intel.com/
Link: https://lkml.kernel.org/r/20230315113133.11326-11-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com >
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au > [powerpc]
Cc: "Kirill A. Shutemov" <kirill@shutemov.name >
Cc: Zi Yan <ziy@nvidia.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
2023-04-05 19:42:46 -07:00
Kefeng Wang
fc5dfebc80
memblock tests: add new pageblock related macro
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Add new pageblock_start_pfn() and pageblock_align() macro which are needed
by memblock tests.
Link: https://lkml.kernel.org/r/20220907082643.186979-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com >
Cc: David Hildenbrand <david@redhat.com >
Cc: Mike Rapoport <rppt@linux.ibm.com >
Cc: Oscar Salvador <osalvador@suse.de >
Cc: Vlastimil Babka <vbabka@suse.cz >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
2022-10-03 14:03:04 -07:00
Linus Torvalds
b8dcef877a
Merge tag 'memblock-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
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Pull memblock updates from Mike Rapoport:
- An optimization in memblock_add_range() to reduce array traversals
- Improvements to the memblock test suite
* tag 'memblock-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock test: Modify the obsolete description in README
memblock tests: fix compilation errors
memblock tests: change build options to run-time options
memblock tests: remove completed TODO items
memblock tests: set memblock_debug to enable memblock_dbg() messages
memblock tests: add verbose output to memblock tests
memblock tests: Makefile: add arguments to control verbosity
memblock: avoid some repeat when add new range
2022-08-09 09:48:30 -07:00
Rebecca Mckeever
06c8580aa2
memblock tests: change build options to run-time options
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Change verbose and movable node build options to run-time options.
Movable node usage:
$ ./main -m
Or:
$ ./main --movable-node
Verbose usage:
$ ./main -v
Or:
$ ./main --verbose
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com >
Reviewed-by: David Hildenbrand <david@redhat.com >
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com >
Link: https://lore.kernel.org/r/20220714031717.12258-1-remckee0@gmail.com
2022-07-20 10:46:33 +03:00
Patrick Wang
c200d90049
mm: kmemleak: remove kmemleak_not_leak_phys() and the min_count argument to kmemleak_alloc_phys()
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Patch series "mm: kmemleak: store objects allocated with physical address
separately and check when scan", v4.
The kmemleak_*_phys() interface uses "min_low_pfn" and "max_low_pfn" to
check address. But on some architectures, kmemleak_*_phys() is called
before those two variables initialized. The following steps will be
taken:
1) Add OBJECT_PHYS flag and rbtree for the objects allocated
with physical address
2) Store physical address in objects if allocated with OBJECT_PHYS
3) Check the boundary when scan instead of in kmemleak_*_phys()
This patch set will solve:
https://lore.kernel.org/r/20220527032504.30341-1-yee.lee@mediatek.com
https://lore.kernel.org/r/9dd08bb5-f39e-53d8-f88d-bec598a08c93@gmail.com
v3: https://lore.kernel.org/r/20220609124950.1694394-1-patrick.wang.shcn@gmail.com
v2: https://lore.kernel.org/r/20220603035415.1243913-1-patrick.wang.shcn@gmail.com
v1: https://lore.kernel.org/r/20220531150823.1004101-1-patrick.wang.shcn@gmail.com
This patch (of 4):
Remove the unused kmemleak_not_leak_phys() function. And remove the
min_count argument to kmemleak_alloc_phys() function, assume it's 0.
Link: https://lkml.kernel.org/r/20220611035551.1823303-1-patrick.wang.shcn@gmail.com
Link: https://lkml.kernel.org/r/20220611035551.1823303-2-patrick.wang.shcn@gmail.com
Signed-off-by: Patrick Wang <patrick.wang.shcn@gmail.com >
Suggested-by: Catalin Marinas <catalin.marinas@arm.com >
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com >
Cc: Yee Lee <yee.lee@mediatek.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
2022-06-16 19:48:30 -07:00
Karolina Drobnik
16802e55de
memblock tests: Add skeleton of the memblock simulator
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Add basic project files, together with local stubs of required headers.
Update tools/include/slab.h to include definitions used by memblock.
Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com >
Signed-off-by: Mike Rapoport <rppt@kernel.org >
Link: https://lore.kernel.org/r/d296fceb023a04b316a31fbff9acf1e76ac684e4.1643796665.git.karolinadrobnik@gmail.com
2022-02-20 08:44:37 +02:00
