Patrick Wang
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c200d90049
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mm: kmemleak: remove kmemleak_not_leak_phys() and the min_count argument to 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/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>
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2022-06-16 19:48:30 -07:00 |
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