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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /mm/shuffle.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mm/shuffle.h')
-rw-r--r--mm/shuffle.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/mm/shuffle.h b/mm/shuffle.h
new file mode 100644
index 000000000..cec62984f
--- /dev/null
+++ b/mm/shuffle.h
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2018 Intel Corporation. All rights reserved.
+#ifndef _MM_SHUFFLE_H
+#define _MM_SHUFFLE_H
+#include <linux/jump_label.h>
+
+#define SHUFFLE_ORDER (MAX_ORDER-1)
+
+#ifdef CONFIG_SHUFFLE_PAGE_ALLOCATOR
+DECLARE_STATIC_KEY_FALSE(page_alloc_shuffle_key);
+extern void __shuffle_free_memory(pg_data_t *pgdat);
+extern bool shuffle_pick_tail(void);
+static inline void __meminit shuffle_free_memory(pg_data_t *pgdat)
+{
+ if (!static_branch_unlikely(&page_alloc_shuffle_key))
+ return;
+ __shuffle_free_memory(pgdat);
+}
+
+extern void __shuffle_zone(struct zone *z);
+static inline void __meminit shuffle_zone(struct zone *z)
+{
+ if (!static_branch_unlikely(&page_alloc_shuffle_key))
+ return;
+ __shuffle_zone(z);
+}
+
+static inline bool is_shuffle_order(int order)
+{
+ if (!static_branch_unlikely(&page_alloc_shuffle_key))
+ return false;
+ return order >= SHUFFLE_ORDER;
+}
+#else
+static inline bool shuffle_pick_tail(void)
+{
+ return false;
+}
+
+static inline void shuffle_free_memory(pg_data_t *pgdat)
+{
+}
+
+static inline void shuffle_zone(struct zone *z)
+{
+}
+
+static inline bool is_shuffle_order(int order)
+{
+ return false;
+}
+#endif
+#endif /* _MM_SHUFFLE_H */