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| author | Christoph Berg <[email protected]> | 2025-06-24 14:44:27 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2025-07-10 04:07:54 +0000 |
| commit | 10d04c26ab2b7da31dd66973f5a09d6fd8ff2a46 (patch) | |
| tree | 67fb88836e40ca5f91054d6e4346e4fda83fc9c0 /scripts/gcc-plugins/latent_entropy_plugin.c | |
| parent | mm/damon/core: handle damon_call_control as normal under kdmond deactivation (diff) | |
| download | kernel-10d04c26ab2b7da31dd66973f5a09d6fd8ff2a46.tar.gz kernel-10d04c26ab2b7da31dd66973f5a09d6fd8ff2a46.zip | |
mm/migrate: fix do_pages_stat in compat mode
For arrays with more than 16 entries, the old code would incorrectly
advance the pages pointer by 16 words instead of 16 compat_uptr_t. Fix by
doing the pointer arithmetic inside get_compat_pages_array where pages32
is already a correctly-typed pointer.
Discovered while working on PostgreSQL 18's new NUMA introspection code.
Link: https://lkml.kernel.org/r/[email protected]
Fixes: 5b1b561ba73c ("mm: simplify compat_sys_move_pages")
Signed-off-by: Christoph Berg <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Suggested-by: David Hildenbrand <[email protected]>
Reported-by: Bertrand Drouvot <[email protected]>
Reported-by: Tomas Vondra <[email protected]>
Closes: https://www.postgresql.org/message-id/flat/6342f601-77de-4ee0-8c2a-3deb50ceac5b%40vondra.me#86402e3d80c031788f5f55b42c459471
Cc: Alistair Popple <[email protected]>
Cc: Byungchul Park <[email protected]>
Cc: Gregory Price <[email protected]>
Cc: "Huang, Ying" <[email protected]>
Cc: Joshua Hahn <[email protected]>
Cc: Mathew Brost <[email protected]>
Cc: Rakie Kim <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/latent_entropy_plugin.c')
0 files changed, 0 insertions, 0 deletions