mm, slab: ignore SLAB_RECLAIM_ACCOUNT with CONFIG_SLUB_TINY

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SLAB_RECLAIM_ACCOUNT caches allocate their slab pages with
__GFP_RECLAIMABLE and can help against fragmentation by grouping pages
by mobility, but on tiny systems mobility grouping is likely disabled
anyway and ignoring SLAB_RECLAIM_ACCOUNT might instead lead to merging
of caches that are made incompatible just by the flag.

Thus with CONFIG_SLUB_TINY, make SLAB_RECLAIM_ACCOUNT ineffective.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Christoph Lameter <cl@linux.com>

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Vlastimil Babka 2022-11-16 16:48:23 +01:00

parent 2f7c1c1396

commit 3d97d976e5

1 changed files with 4 additions and 0 deletions

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include/linux/slab.h

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