diff options
| author | Muchun Song <songmuchun@bytedance.com> | 2022-04-22 14:00:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-27 14:41:05 +0200 |
| commit | 3b63a41f9edee197b6448b3de2505530dc33cdfd (patch) | |
| tree | 1dd2d86e600744e281a164ea2624c1b0a07a68f3 /lib/xarray.c | |
| parent | 97f6d15949b25939a8bcd7e0739917d41defebdd (diff) | |
arm64: mm: fix p?d_leaf()
[ Upstream commit 23bc8f69f0eceecbb87c3801d2e48827d2dca92b ]
The pmd_leaf() is used to test a leaf mapped PMD, however, it misses
the PROT_NONE mapped PMD on arm64. Fix it. A real world issue [1]
caused by this was reported by Qian Cai. Also fix pud_leaf().
Link: https://patchwork.kernel.org/comment/24798260/ [1]
Fixes: 8aa82df3c123 ("arm64: mm: add p?d_leaf() definitions")
Reported-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Link: https://lore.kernel.org/r/20220422060033.48711-1-songmuchun@bytedance.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'lib/xarray.c')
0 files changed, 0 insertions, 0 deletions