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David Hildenbrand
84caf98838
... instead, look them up statically based on the page type. Maybe in the future we want a registration interface? At least for now, it can be easily handled using the two page types that actually support page migration. The remaining usage of page->mapping is to flag such pages as actually being movable (having movable_ops), which we will change next. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: David Hildenbrand <[email protected]> Reviewed-by: Zi Yan <[email protected]> Reviewed-by: Lorenzo Stoakes <[email protected]> Reviewed-by: Harry Yoo <[email protected]> Cc: Alistair Popple <[email protected]> Cc: Al Viro <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Brendan Jackman <[email protected]> Cc: Byungchul Park <[email protected]> Cc: Chengming Zhou <[email protected]> Cc: Christian Brauner <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Eugenio Pé rez <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Gregory Price <[email protected]> Cc: "Huang, Ying" <[email protected]> Cc: Jan Kara <[email protected]> Cc: Jason Gunthorpe <[email protected]> Cc: Jason Wang <[email protected]> Cc: Jerrin Shaji George <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: John Hubbard <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Joshua Hahn <[email protected]> Cc: Liam Howlett <[email protected]> Cc: Madhavan Srinivasan <[email protected]> Cc: Mathew Brost <[email protected]> Cc: Matthew Wilcox (Oracle) <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: "Michael S. Tsirkin" <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: Minchan Kim <[email protected]> Cc: Naoya Horiguchi <[email protected]> Cc: Nicholas Piggin <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Peter Xu <[email protected]> Cc: Qi Zheng <[email protected]> Cc: Rakie Kim <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Sergey Senozhatsky <[email protected]> Cc: Shakeel Butt <[email protected]> Cc: Suren Baghdasaryan <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Xuan Zhuo <[email protected]> Cc: xu xin <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
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* zsmalloc memory allocator
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*
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* Copyright (C) 2011 Nitin Gupta
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* Copyright (C) 2012, 2013 Minchan Kim
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*
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* This code is released using a dual license strategy: BSD/GPL
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* You can choose the license that better fits your requirements.
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*
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* Released under the terms of 3-clause BSD License
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* Released under the terms of GNU General Public License Version 2.0
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*/
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#ifndef _ZS_MALLOC_H_
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#define _ZS_MALLOC_H_
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#include <linux/types.h>
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struct zs_pool_stats {
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/* How many pages were migrated (freed) */
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atomic_long_t pages_compacted;
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};
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struct zs_pool;
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struct zs_pool *zs_create_pool(const char *name);
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void zs_destroy_pool(struct zs_pool *pool);
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unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t flags,
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const int nid);
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void zs_free(struct zs_pool *pool, unsigned long obj);
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size_t zs_huge_class_size(struct zs_pool *pool);
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unsigned long zs_get_total_pages(struct zs_pool *pool);
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unsigned long zs_compact(struct zs_pool *pool);
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unsigned int zs_lookup_class_index(struct zs_pool *pool, unsigned int size);
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void zs_pool_stats(struct zs_pool *pool, struct zs_pool_stats *stats);
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void *zs_obj_read_begin(struct zs_pool *pool, unsigned long handle,
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void *local_copy);
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void zs_obj_read_end(struct zs_pool *pool, unsigned long handle,
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void *handle_mem);
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void zs_obj_write(struct zs_pool *pool, unsigned long handle,
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void *handle_mem, size_t mem_len);
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extern const struct movable_operations zsmalloc_mops;
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#endif
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