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| author | Chengming Zhou <[email protected]> | 2023-11-02 03:23:30 +0000 |
|---|---|---|
| committer | Vlastimil Babka <[email protected]> | 2023-12-05 09:38:27 +0000 |
| commit | 31bda717d7777b8b6cf542af2730651ad6bb4839 (patch) | |
| tree | 4dc5dece86d2ba5fbb4899ad0c9f4cdc5d8a24ed /mm/hugetlb.c | |
| parent | slub: Rename all *unfreeze_partials* functions to *put_partials* (diff) | |
| download | kernel-31bda717d7777b8b6cf542af2730651ad6bb4839.tar.gz kernel-31bda717d7777b8b6cf542af2730651ad6bb4839.zip | |
slub: Update frozen slabs documentations in the source
The current updated scheme (which this series implemented) is:
- node partial slabs: PG_Workingset && !frozen
- cpu partial slabs: !PG_Workingset && !frozen
- cpu slabs: !PG_Workingset && frozen
- full slabs: !PG_Workingset && !frozen
The most important change is that "frozen" bit is not set for the
cpu partial slabs anymore, __slab_free() will grab node list_lock
then check by !PG_Workingset that it's not on a node partial list.
And the "frozen" bit is still kept for the cpu slabs for performance,
since we don't need to grab node list_lock to check whether the
PG_Workingset is set or not if the "frozen" bit is set in __slab_free().
Update related documentations and comments in the source.
Signed-off-by: Chengming Zhou <[email protected]>
Tested-by: Hyeonggon Yoo <[email protected]>
Reviewed-by: Hyeonggon Yoo <[email protected]>
Acked-by: Christoph Lameter (Ampere) <[email protected]>
Signed-off-by: Vlastimil Babka <[email protected]>
Diffstat (limited to 'mm/hugetlb.c')
0 files changed, 0 insertions, 0 deletions