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| author | Peter Collingbourne <[email protected]> | 2023-05-23 00:43:08 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-07-08 16:29:30 +0000 |
| commit | 6dca4ac6fc91fd41ea4d6c4511838d37f4e0eab2 (patch) | |
| tree | a3c86a60af54c620701298a41766cede28a5bb66 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | squashfs: fix cache race with migration (diff) | |
| download | kernel-6dca4ac6fc91fd41ea4d6c4511838d37f4e0eab2.tar.gz kernel-6dca4ac6fc91fd41ea4d6c4511838d37f4e0eab2.zip | |
mm: call arch_swap_restore() from do_swap_page()
Commit c145e0b47c77 ("mm: streamline COW logic in do_swap_page()") moved
the call to swap_free() before the call to set_pte_at(), which meant that
the MTE tags could end up being freed before set_pte_at() had a chance to
restore them. Fix it by adding a call to the arch_swap_restore() hook
before the call to swap_free().
Link: https://lkml.kernel.org/r/[email protected]
Link: https://linux-review.googlesource.com/id/I6470efa669e8bd2f841049b8c61020c510678965
Fixes: c145e0b47c77 ("mm: streamline COW logic in do_swap_page()")
Signed-off-by: Peter Collingbourne <[email protected]>
Reported-by: Qun-wei Lin <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Acked-by: David Hildenbrand <[email protected]>
Acked-by: "Huang, Ying" <[email protected]>
Reviewed-by: Steven Price <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Cc: <[email protected]> [6.1+]
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions