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| author | Mark Rutland <mark.rutland@arm.com> | 2018-09-05 19:38:57 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-09-06 20:01:13 +0300 |
| commit | fac880c7d074fdfca874114b5c47b36aa034e4ee (patch) | |
| tree | 6124d50861d475863156199d14fe89d00fba0b6f /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 57361846b52bc686112da6ca5368d11210796804 (diff) | |
| download | linux-fac880c7d074fdfca874114b5c47b36aa034e4ee.tar.xz | |
arm64: fix erroneous warnings in page freeing functions
In pmd_free_pte_page() and pud_free_pmd_page() we try to warn if they
hit a present non-table entry. In both cases we'll warn for non-present
entries, as the VM_WARN_ON() only checks the entry is not a table entry.
This has been observed to result in warnings when booting a v4.19-rc2
kernel under qemu.
Fix this by bailing out earlier for non-present entries.
Fixes: ec28bb9c9b0826d7 ("arm64: Implement page table free interfaces")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions