From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-mm@kvack.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: [PATCH 55/62] mm: Convert slob to use struct slab
Date: Mon, 4 Oct 2021 14:46:43 +0100 [thread overview]
Message-ID: <20211004134650.4031813-56-willy@infradead.org> (raw)
In-Reply-To: <20211004134650.4031813-1-willy@infradead.org>
Use struct slab throughout the slob allocator.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
mm/slab.h | 15 +++++++++++++++
mm/slob.c | 30 +++++++++++++++---------------
2 files changed, 30 insertions(+), 15 deletions(-)
diff --git a/mm/slab.h b/mm/slab.h
index 7631e274a840..5eabc9352bbf 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -43,6 +43,21 @@ static inline void __slab_clear_pfmemalloc(struct slab *slab)
__clear_bit(PG_pfmemalloc, &slab->flags);
}
+static inline bool slab_test_free(const struct slab *slab)
+{
+ return test_bit(PG_slob_free, &slab->flags);
+}
+
+static inline void __slab_set_free(struct slab *slab)
+{
+ __set_bit(PG_slob_free, &slab->flags);
+}
+
+static inline void __slab_clear_free(struct slab *slab)
+{
+ __clear_bit(PG_slob_free, &slab->flags);
+}
+
static inline void *slab_address(const struct slab *slab)
{
return page_address(slab_page(slab));
diff --git a/mm/slob.c b/mm/slob.c
index 8cede39054fc..be5c9c472bbb 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -105,21 +105,21 @@ static LIST_HEAD(free_slob_large);
/*
* slob_page_free: true for pages on free_slob_pages list.
*/
-static inline int slob_page_free(struct page *sp)
+static inline int slob_page_free(struct slab *sp)
{
- return PageSlobFree(sp);
+ return slab_test_free(sp);
}
-static void set_slob_page_free(struct page *sp, struct list_head *list)
+static void set_slob_page_free(struct slab *sp, struct list_head *list)
{
list_add(&sp->slab_list, list);
- __SetPageSlobFree(sp);
+ __slab_set_free(sp);
}
-static inline void clear_slob_page_free(struct page *sp)
+static inline void clear_slob_page_free(struct slab *sp)
{
list_del(&sp->slab_list);
- __ClearPageSlobFree(sp);
+ __slab_clear_free(sp);
}
#define SLOB_UNIT sizeof(slob_t)
@@ -234,7 +234,7 @@ static void slob_free_pages(void *b, int order)
* freelist, in this case @page_removed_from_list will be set to
* true (set to false otherwise).
*/
-static void *slob_page_alloc(struct page *sp, size_t size, int align,
+static void *slob_page_alloc(struct slab *sp, size_t size, int align,
int align_offset, bool *page_removed_from_list)
{
slob_t *prev, *cur, *aligned = NULL;
@@ -301,7 +301,7 @@ static void *slob_page_alloc(struct page *sp, size_t size, int align,
static void *slob_alloc(size_t size, gfp_t gfp, int align, int node,
int align_offset)
{
- struct page *sp;
+ struct slab *sp;
struct list_head *slob_list;
slob_t *b = NULL;
unsigned long flags;
@@ -323,7 +323,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node,
* If there's a node specification, search for a partial
* page with a matching node id in the freelist.
*/
- if (node != NUMA_NO_NODE && page_to_nid(sp) != node)
+ if (node != NUMA_NO_NODE && slab_nid(sp) != node)
continue;
#endif
/* Enough room on this page? */
@@ -358,8 +358,8 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node,
b = slob_new_pages(gfp & ~__GFP_ZERO, 0, node);
if (!b)
return NULL;
- sp = virt_to_page(b);
- __SetPageSlab(sp);
+ sp = virt_to_slab(b);
+ __SetPageSlab(slab_page(sp));
spin_lock_irqsave(&slob_lock, flags);
sp->units = SLOB_UNITS(PAGE_SIZE);
@@ -381,7 +381,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node,
*/
static void slob_free(void *block, int size)
{
- struct page *sp;
+ struct slab *sp;
slob_t *prev, *next, *b = (slob_t *)block;
slobidx_t units;
unsigned long flags;
@@ -391,7 +391,7 @@ static void slob_free(void *block, int size)
return;
BUG_ON(!size);
- sp = virt_to_page(block);
+ sp = virt_to_slab(block);
units = SLOB_UNITS(size);
spin_lock_irqsave(&slob_lock, flags);
@@ -401,8 +401,8 @@ static void slob_free(void *block, int size)
if (slob_page_free(sp))
clear_slob_page_free(sp);
spin_unlock_irqrestore(&slob_lock, flags);
- __ClearPageSlab(sp);
- page_mapcount_reset(sp);
+ __ClearPageSlab(slab_page(sp));
+ page_mapcount_reset(slab_page(sp));
slob_free_pages(b, 0);
return;
}
--
2.32.0
next prev parent reply other threads:[~2021-10-04 14:56 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 13:45 [PATCH 00/62] Separate struct slab from struct page Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 01/62] mm: Convert page_to_section() to pgflags_section() Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 02/62] mm: Add pgflags_nid() Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 03/62] mm: Split slab into its own type Matthew Wilcox (Oracle)
2021-10-05 16:10 ` David Hildenbrand
2021-10-05 18:48 ` Matthew Wilcox
2021-10-12 7:25 ` David Hildenbrand
2021-10-12 14:13 ` Matthew Wilcox
2021-10-12 14:17 ` David Hildenbrand
2021-10-13 18:08 ` Johannes Weiner
2021-10-13 18:31 ` Matthew Wilcox
2021-10-14 7:22 ` David Hildenbrand
2021-10-14 12:44 ` Johannes Weiner
2021-10-14 13:08 ` Matthew Wilcox
2021-10-04 13:45 ` [PATCH 04/62] mm: Add account_slab() and unaccount_slab() Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 05/62] mm: Convert virt_to_cache() to use struct slab Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 06/62] mm: Convert __ksize() to " Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 07/62] mm: Use struct slab in kmem_obj_info() Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 08/62] mm: Convert check_heap_object() to use struct slab Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 09/62] mm/slub: Convert process_slab() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 10/62] mm/slub: Convert detached_freelist to use " Matthew Wilcox (Oracle)
2021-10-04 13:45 ` [PATCH 11/62] mm/slub: Convert kfree() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 12/62] mm/slub: Convert __slab_free() to take " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 13/62] mm/slub: Convert new_slab() to return " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 14/62] mm/slub: Convert early_kmem_cache_node_alloc() to use " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 15/62] mm/slub: Convert kmem_cache_cpu to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 16/62] mm/slub: Convert show_slab_objects() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 17/62] mm/slub: Convert validate_slab() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 18/62] mm/slub: Convert count_partial() to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 19/62] mm/slub: Convert bootstrap() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 20/62] mm/slub: Convert __kmem_cache_do_shrink() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 21/62] mm/slub: Convert free_partial() to use " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 22/62] mm/slub: Convert list_slab_objects() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 23/62] mm/slub: Convert slab_alloc_node() to use " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 24/62] mm/slub: Convert get_freelist() to take " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 25/62] mm/slub: Convert node_match() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 26/62] mm/slub: Convert slab flushing to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 27/62] mm/slub: Convert __unfreeze_partials to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 28/62] mm/slub: Convert deactivate_slab() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 29/62] mm/slub: Convert acquire_slab() to take a struct page Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 30/62] mm/slub: Convert partial slab management to struct slab Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 31/62] mm/slub: Convert slab freeing " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 32/62] mm/slub: Convert shuffle_freelist " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 33/62] mm/slub: Remove struct page argument to next_freelist_entry() Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 34/62] mm/slub: Remove struct page argument from setup_object() Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 35/62] mm/slub: Convert freelist_corrupted() to struct slab Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 36/62] mm/slub: Convert full slab management " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 37/62] mm/slub: Convert free_consistency_checks() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 38/62] mm/slub: Convert alloc_debug_processing() to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 39/62] mm/slub: Convert check_object() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 40/62] mm/slub: Convert on_freelist() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 41/62] mm/slub: Convert check_slab() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 42/62] mm/slub: Convert check_valid_pointer() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 43/62] mm/slub: Convert object_err() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 44/62] mm/slub: Convert print_trailer() to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 45/62] mm/slub: Convert slab_err() to take a " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 46/62] mm/slub: Convert print_page_info() to print_slab_info() Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 47/62] mm/slub: Convert trace() to take a struct slab Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 48/62] mm/slub: Convert cmpxchg_double_slab to " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 49/62] mm/slub: Convert get_map() and __fill_map() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 50/62] mm/slub: Convert slab_lock() and slab_unlock() " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 51/62] mm/slub: Convert setup_page_debug() to setup_slab_debug() Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 52/62] mm/slub: Convert pfmemalloc_match() to take a struct slab Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 53/62] mm/slub: Remove pfmemalloc_match_unsafe() Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 54/62] mm: Convert slab to use struct slab Matthew Wilcox (Oracle)
2021-10-04 13:46 ` Matthew Wilcox (Oracle) [this message]
2021-10-04 13:46 ` [PATCH 56/62] mm: Convert slub " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 57/62] memcg: Convert object cgroups from struct page to " Matthew Wilcox (Oracle)
2021-10-11 17:13 ` Johannes Weiner
2021-10-12 3:16 ` Matthew Wilcox
2021-10-04 13:46 ` [PATCH 58/62] mm/kasan: Convert " Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 59/62] zsmalloc: Stop using slab fields in struct page Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 60/62] bootmem: Use page->index instead of page->freelist Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 61/62] iommu: Use put_pages_list Matthew Wilcox (Oracle)
2021-10-04 13:46 ` [PATCH 62/62] mm: Remove slab from struct page Matthew Wilcox (Oracle)
2021-10-11 20:07 ` [PATCH 00/62] Separate struct " Johannes Weiner
2021-10-12 3:30 ` Matthew Wilcox
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