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authorYosry Ahmed <yosry.ahmed@linux.dev>2025-03-05 06:11:33 +0000
committerAndrew Morton <akpm@linux-foundation.org>2025-03-17 00:05:41 -0700
commit7b60041156079f256a7df3f7de469de7db618580 (patch)
tree97bb4bdc02b53c9ebf11999c349f7c69090abc64 /mm
parent07864f1a57fb1f798a7d21f13e4929c9cb52daf7 (diff)
downloadath-7b60041156079f256a7df3f7de469de7db618580.tar.gz
mm: zpool: remove zpool_malloc_support_movable()
zpool_malloc_support_movable() always returns true for zsmalloc, the only remaining zpool driver. Remove it and set the gfp flags in zswap_compress() accordingly. Opportunistically use GFP_NOWAIT instead of __GFP_NOWARN | __GFP_KSWAPD_RECLAIM for conciseness as they are equivalent. Link: https://lkml.kernel.org/r/20250305061134.4105762-6-yosry.ahmed@linux.dev Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/zpool.c16
-rw-r--r--mm/zsmalloc.c1
-rw-r--r--mm/zswap.c4
3 files changed, 1 insertions, 20 deletions
diff --git a/mm/zpool.c b/mm/zpool.c
index 4fc665b42f5e9..6d6d889309324 100644
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -221,22 +221,6 @@ const char *zpool_get_type(struct zpool *zpool)
}
/**
- * zpool_malloc_support_movable() - Check if the zpool supports
- * allocating movable memory
- * @zpool: The zpool to check
- *
- * This returns if the zpool supports allocating movable memory.
- *
- * Implementations must guarantee this to be thread-safe.
- *
- * Returns: true if the zpool supports allocating movable memory, false if not
- */
-bool zpool_malloc_support_movable(struct zpool *zpool)
-{
- return zpool->driver->malloc_support_movable;
-}
-
-/**
* zpool_malloc() - Allocate memory
* @zpool: The zpool to allocate from.
* @size: The amount of memory to allocate.
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index cd1c2a8ffef05..961b270f023c2 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -503,7 +503,6 @@ static struct zpool_driver zs_zpool_driver = {
.owner = THIS_MODULE,
.create = zs_zpool_create,
.destroy = zs_zpool_destroy,
- .malloc_support_movable = true,
.malloc = zs_zpool_malloc,
.free = zs_zpool_free,
.obj_read_begin = zs_zpool_obj_read_begin,
diff --git a/mm/zswap.c b/mm/zswap.c
index 7de54f105d04d..5f0e62289444c 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -964,9 +964,7 @@ static bool zswap_compress(struct page *page, struct zswap_entry *entry,
goto unlock;
zpool = pool->zpool;
- gfp = __GFP_NORETRY | __GFP_NOWARN | __GFP_KSWAPD_RECLAIM;
- if (zpool_malloc_support_movable(zpool))
- gfp |= __GFP_HIGHMEM | __GFP_MOVABLE;
+ gfp = GFP_NOWAIT | __GFP_NORETRY | __GFP_HIGHMEM | __GFP_MOVABLE;
alloc_ret = zpool_malloc(zpool, dlen, gfp, &handle);
if (alloc_ret)
goto unlock;