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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.
[[email protected]: fix min() warning]
Link: https://lkml.kernel.org/r/20230315153800.32wib3n5rickolvh@box
[[email protected]: fix another min_t warning]
[[email protected]: fixups per Zi Yan]
Link: https://lkml.kernel.org/r/[email protected]
[[email protected]: fix underlining in docs]
Link: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kirill A. Shutemov <[email protected]>
Reviewed-by: Michael Ellerman <[email protected]> [powerpc]
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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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/[email protected]
Signed-off-by: Kefeng Wang <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
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
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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 <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Signed-off-by: Mike Rapoport <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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kmemleak_alloc_phys()
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/[email protected]
https://lore.kernel.org/r/[email protected]
v3: https://lore.kernel.org/r/[email protected]
v2: https://lore.kernel.org/r/[email protected]
v1: https://lore.kernel.org/r/[email protected]
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/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Patrick Wang <[email protected]>
Suggested-by: Catalin Marinas <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
Cc: Yee Lee <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
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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 <[email protected]>
Signed-off-by: Mike Rapoport <[email protected]>
Link: https://lore.kernel.org/r/d296fceb023a04b316a31fbff9acf1e76ac684e4.1643796665.git.karolinadrobnik@gmail.com
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