diff options
| author | Waiman Long <[email protected]> | 2023-08-25 12:49:47 -0400 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2023-09-02 15:17:34 -0700 |
| commit | e68d343d2720779362cb7160cb7f4bd24979b2b4 (patch) | |
| tree | f5f56525ff09ad3e80f5e2463ab9195b3a1859f1 /rust/helpers | |
| parent | f945116e4e191cd543ecd56d9f13e6331494847c (diff) | |
mm/kmemleak: move up cond_resched() call in page scanning loop
Commit bde5f6bc68db ("kmemleak: add scheduling point to kmemleak_scan()")
added a cond_resched() call to the struct page scanning loop to prevent
soft lockup from happening. However, soft lockup can still happen in that
loop in some corner cases when the pages that satisfy the "!(pfn & 63)"
check are skipped for some reasons.
Fix this corner case by moving up the cond_resched() check so that it will
be called every 64 pages unconditionally.
Link: https://lkml.kernel.org/r/[email protected]
Fixes: bde5f6bc68db ("kmemleak: add scheduling point to kmemleak_scan()")
Signed-off-by: Waiman Long <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Yisheng Xie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'rust/helpers')
0 files changed, 0 insertions, 0 deletions