diff options
| author | Alexandre Ghiti <[email protected]> | 2023-04-28 12:01:19 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <[email protected]> | 2023-06-02 01:15:20 +0000 |
| commit | 835e5ac3f98e78eca5c512bd48bd1880b90c4eb1 (patch) | |
| tree | 1074e1782e58ec6c59ed4650dbcae769a4ba799b /lib/string_helpers.c | |
| parent | riscv: perf: Fix callchain parse error with kernel tracepoint events (diff) | |
| download | kernel-835e5ac3f98e78eca5c512bd48bd1880b90c4eb1.tar.gz kernel-835e5ac3f98e78eca5c512bd48bd1880b90c4eb1.zip | |
riscv: Fix huge_ptep_set_wrprotect when PTE is a NAPOT
We need to avoid inconsistencies across the PTEs that form a NAPOT
region, so when we write protect such a region, we should clear and flush
all the PTEs to make sure that any of those PTEs is not cached which would
result in such inconsistencies (arm64 does the same).
Fixes: 82a1a1f3bfb6 ("riscv: mm: support Svnapot in hugetlb page")
Signed-off-by: Alexandre Ghiti <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: [email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions