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| author |  Patrick Wang <patrick.wang.shcn@gmail.com>
| 2022-06-11 11:55:48 +0800 |
|---|---|---|
| committer |  akpm <akpm@linux-foundation.org>
| 2022-06-16 19:48:30 -0700 |
| commit | c200d90049dbe08fa8b016f74b713fddefca0479 (patch) | |
| tree | 4219f14e4a035b7268a4a4a5e08d2409301fe1c7 /drivers/of/fdt.c | |
| parent | lib/test_hmm: avoid accessing uninitialized pages (diff) | |
| download | linux-c200d90049dbe08fa8b016f74b713fddefca0479.tar.gz linux-c200d90049dbe08fa8b016f74b713fddefca0479.tar.bz2 linux-c200d90049dbe08fa8b016f74b713fddefca0479.zip | |
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>
Diffstat (limited to 'drivers/of/fdt.c')
| -rw-r--r-- | drivers/of/fdt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index a8f5b6532165..2c677e84c3f5 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -529,7 +529,7 @@ static int __init __reserved_mem_reserve_reg(unsigned long node, pr_debug("Reserved memory: reserved region for node '%s': base %pa, size %lu MiB\n", uname, &base, (unsigned long)(size / SZ_1M)); if (!nomap) - kmemleak_alloc_phys(base, size, 0, 0); + kmemleak_alloc_phys(base, size, 0); } else pr_info("Reserved memory: failed to reserve memory for node '%s': base %pa, size %lu MiB\n", |