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| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-31 15:08:43 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-05 09:36:39 +0200 |
| commit | 6801be4f2653e5fdddca73b527cf0728284ba8a3 (patch) | |
| tree | 932119e12994d7f23b5755d0cb4fbab3347028bf /include/linux/slub_def.h | |
| parent | b1fe7f2cda2a003afe316ce8dfe8d3645694a67e (diff) | |
| download | lwn-6801be4f2653e5fdddca73b527cf0728284ba8a3.tar.gz lwn-6801be4f2653e5fdddca73b527cf0728284ba8a3.zip | |
slub: Replace cmpxchg_double()
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230531132323.924677086@infradead.org
Diffstat (limited to 'include/linux/slub_def.h')
| -rw-r--r-- | include/linux/slub_def.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index f6df03f934e5..deb90cf4bffb 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -39,7 +39,8 @@ enum stat_item { CPU_PARTIAL_FREE, /* Refill cpu partial on free */ CPU_PARTIAL_NODE, /* Refill cpu partial from node partial */ CPU_PARTIAL_DRAIN, /* Drain cpu partial to node partial */ - NR_SLUB_STAT_ITEMS }; + NR_SLUB_STAT_ITEMS +}; #ifndef CONFIG_SLUB_TINY /* @@ -47,8 +48,13 @@ enum stat_item { * with this_cpu_cmpxchg_double() alignment requirements. */ struct kmem_cache_cpu { - void **freelist; /* Pointer to next available object */ - unsigned long tid; /* Globally unique transaction id */ + union { + struct { + void **freelist; /* Pointer to next available object */ + unsigned long tid; /* Globally unique transaction id */ + }; + freelist_aba_t freelist_tid; + }; struct slab *slab; /* The slab from which we are allocating */ #ifdef CONFIG_SLUB_CPU_PARTIAL struct slab *partial; /* Partially allocated frozen slabs */ |