diff options
| author | Yosry Ahmed <yosry.ahmed@linux.dev> | 2025-03-05 06:11:32 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 00:05:41 -0700 |
| commit | 07864f1a57fb1f798a7d21f13e4929c9cb52daf7 (patch) | |
| tree | 32d73838256a52946c991e2588a31298aecfbb71 /include/linux | |
| parent | fcbea574754c63f7035d0c4ef7dfb161b60b5bde (diff) | |
mm: zsmalloc: remove object mapping APIs and per-CPU map areas
zs_map_object() and zs_unmap_object() are no longer used, remove them.
Since these are the only users of per-CPU mapping_areas, remove them and
the associated CPU hotplug callbacks too.
[yosry.ahmed@linux.dev: update the docs]
Link: https://lkml.kernel.org/r/Z8ier-ZZp8T6MOTH@google.com
Link: https://lkml.kernel.org/r/20250305061134.4105762-5-yosry.ahmed@linux.dev
Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Acked-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Nhat Pham <nphamcs@gmail.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpuhotplug.h | 1 | ||||
| -rw-r--r-- | include/linux/zsmalloc.h | 21 |
2 files changed, 0 insertions, 22 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 6cc5e484547c..1987400000b4 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -116,7 +116,6 @@ enum cpuhp_state { CPUHP_NET_IUCV_PREPARE, CPUHP_ARM_BL_PREPARE, CPUHP_TRACE_RB_PREPARE, - CPUHP_MM_ZS_PREPARE, CPUHP_MM_ZSWP_POOL_PREPARE, CPUHP_KVM_PPC_BOOK3S_PREPARE, CPUHP_ZCOMP_PREPARE, diff --git a/include/linux/zsmalloc.h b/include/linux/zsmalloc.h index 7d70983cf398..c26baf9fb331 100644 --- a/include/linux/zsmalloc.h +++ b/include/linux/zsmalloc.h @@ -16,23 +16,6 @@ #include <linux/types.h> -/* - * zsmalloc mapping modes - * - * NOTE: These only make a difference when a mapped object spans pages. - */ -enum zs_mapmode { - ZS_MM_RW, /* normal read-write mapping */ - ZS_MM_RO, /* read-only (no copy-out at unmap time) */ - ZS_MM_WO /* write-only (no copy-in at map time) */ - /* - * NOTE: ZS_MM_WO should only be used for initializing new - * (uninitialized) allocations. Partial writes to already - * initialized allocations should use ZS_MM_RW to preserve the - * existing data. - */ -}; - struct zs_pool_stats { /* How many pages were migrated (freed) */ atomic_long_t pages_compacted; @@ -48,10 +31,6 @@ void zs_free(struct zs_pool *pool, unsigned long obj); size_t zs_huge_class_size(struct zs_pool *pool); -void *zs_map_object(struct zs_pool *pool, unsigned long handle, - enum zs_mapmode mm); -void zs_unmap_object(struct zs_pool *pool, unsigned long handle); - unsigned long zs_get_total_pages(struct zs_pool *pool); unsigned long zs_compact(struct zs_pool *pool); |