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author | Gavin Shan <gshan@redhat.com> | 2021-09-02 14:52:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-03 09:58:09 -0700 |
commit | 44966c4480f8024776c9ecc68f5589f023f19884 (patch) | |
tree | e97e0bc9735269a71247239fb03d5f1c258d00c1 /tools/vm | |
parent | 4878a888824bd69ad4fff18efa93901ba2ba24f3 (diff) | |
download | linux-stable-44966c4480f8024776c9ecc68f5589f023f19884.tar.gz linux-stable-44966c4480f8024776c9ecc68f5589f023f19884.tar.bz2 linux-stable-44966c4480f8024776c9ecc68f5589f023f19884.zip |
mm/debug_vm_pgtable: use struct pgtable_debug_args in PTE modifying tests
This uses struct pgtable_debug_args in PTE modifying tests. The allocated
page is used as set_pte_at() is used there. The tests are skipped if the
allocated page doesn't exist. It's notable that args->ptep need to be
mapped before the tests. The reason why we don't map args->ptep at the
beginning is PTE entry is only mapped and accessible in atomic context
when CONFIG_HIGHPTE is enabled. So we avoid to do that so that atomic
context is only enabled if needed.
Besides, the unused variable @pte_aligned and @ptep in debug_vm_pgtable()
are dropped.
Link: https://lkml.kernel.org/r/20210809092631.1888748-8-gshan@redhat.com
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> [powerpc 8xx]
Tested-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> [s390]
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chunyu Hu <chuhu@redhat.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/vm')
0 files changed, 0 insertions, 0 deletions