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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 09:25:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 09:25:15 -0700
commit59fc453b21f767f2fb0ff4dc0a947e9b9c9e6d14 (patch)
tree42029c432982ebabb462bd16a413a033125fd793 /include
parent310c7585e8300ddc46211df0757c11e4299ec482 (diff)
parent2ebe82288b3278b8e538ee8adce4142dbdedd8f6 (diff)
downloadlinux-59fc453b21f767f2fb0ff4dc0a947e9b9c9e6d14.tar.bz2
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: - the rest of MM - lib/bitmap updates - hfs updates - fatfs updates - various other misc things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits) mm/gup.c: fix __get_user_pages_fast() comment mm: Fix warning in insert_pfn() memory-hotplug.rst: add some details about locking internals powerpc/powernv: hold device_hotplug_lock when calling memtrace_offline_pages() powerpc/powernv: hold device_hotplug_lock when calling device_online() mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock mm/memory_hotplug: make add_memory() take the device_hotplug_lock mm/memory_hotplug: make remove_memory() take the device_hotplug_lock mm/memblock.c: warn if zero alignment was requested memblock: stop using implicit alignment to SMP_CACHE_BYTES docs/boot-time-mm: remove bootmem documentation mm: remove include/linux/bootmem.h memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants mm: remove nobootmem memblock: rename __free_pages_bootmem to memblock_free_pages memblock: rename free_all_bootmem to memblock_free_all memblock: replace free_bootmem_late with memblock_free_late memblock: replace free_bootmem{_node} with memblock_free mm: nobootmem: remove bootmem allocation APIs memblock: replace alloc_bootmem with memblock_alloc ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/percpu.h4
-rw-r--r--include/linux/bitmap.h37
-rw-r--r--include/linux/bootmem.h404
-rw-r--r--include/linux/compat.h3
-rw-r--r--include/linux/hmm.h33
-rw-r--r--include/linux/memblock.h165
-rw-r--r--include/linux/memory_hotplug.h4
-rw-r--r--include/linux/mm.h2
-rw-r--r--include/linux/mmzone.h5
-rw-r--r--include/linux/percpu-defs.h6
-rw-r--r--include/linux/rbtree_augmented.h4
-rw-r--r--include/linux/signal.h6
12 files changed, 207 insertions, 466 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 1817a8415a5e..c2de013b2cf4 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -62,10 +62,6 @@ extern void setup_per_cpu_areas(void);
#define PER_CPU_ATTRIBUTES
#endif
-#ifndef PER_CPU_DEF_ATTRIBUTES
-#define PER_CPU_DEF_ATTRIBUTES
-#endif
-
#define raw_cpu_generic_read(pcp) \
({ \
*raw_cpu_ptr(&(pcp)); \
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index acf5e8df3504..f58e97446abc 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -28,8 +28,8 @@
* The available bitmap operations and their rough meaning in the
* case that the bitmap is a single unsigned long are thus:
*
- * Note that nbits should be always a compile time evaluable constant.
- * Otherwise many inlines will generate horrible code.
+ * The generated code is more efficient when nbits is known at
+ * compile-time and at most BITS_PER_LONG.
*
* ::
*
@@ -204,38 +204,31 @@ extern int bitmap_print_to_pagebuf(bool list, char *buf,
#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))
#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))
+/*
+ * The static inlines below do not handle constant nbits==0 correctly,
+ * so make such users (should any ever turn up) call the out-of-line
+ * versions.
+ */
#define small_const_nbits(nbits) \
- (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
+ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)
static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)
{
- if (small_const_nbits(nbits))
- *dst = 0UL;
- else {
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
- memset(dst, 0, len);
- }
+ unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ memset(dst, 0, len);
}
static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)
{
- if (small_const_nbits(nbits))
- *dst = ~0UL;
- else {
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
- memset(dst, 0xff, len);
- }
+ unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ memset(dst, 0xff, len);
}
static inline void bitmap_copy(unsigned long *dst, const unsigned long *src,
unsigned int nbits)
{
- if (small_const_nbits(nbits))
- *dst = *src;
- else {
- unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
- memcpy(dst, src, len);
- }
+ unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ memcpy(dst, src, len);
}
/*
@@ -398,7 +391,7 @@ static __always_inline void bitmap_clear(unsigned long *map, unsigned int start,
}
static inline void bitmap_shift_right(unsigned long *dst, const unsigned long *src,
- unsigned int shift, int nbits)
+ unsigned int shift, unsigned int nbits)
{
if (small_const_nbits(nbits))
*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
deleted file mode 100644
index 42515195d7d8..000000000000
--- a/include/linux/bootmem.h
+++ /dev/null
@@ -1,404 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
- */
-#ifndef _LINUX_BOOTMEM_H
-#define _LINUX_BOOTMEM_H
-
-#include <linux/mmzone.h>
-#include <linux/mm_types.h>
-#include <asm/dma.h>
-#include <asm/processor.h>
-
-/*
- * simple boot-time physical memory area allocator.
- */
-
-extern unsigned long max_low_pfn;
-extern unsigned long min_low_pfn;
-
-/*
- * highest page
- */
-extern unsigned long max_pfn;
-/*
- * highest possible page
- */
-extern unsigned long long max_possible_pfn;
-
-#ifndef CONFIG_NO_BOOTMEM
-/**
- * struct bootmem_data - per-node information used by the bootmem allocator
- * @node_min_pfn: the starting physical address of the node's memory
- * @node_low_pfn: the end physical address of the directly addressable memory
- * @node_bootmem_map: is a bitmap pointer - the bits represent all physical
- * memory pages (including holes) on the node.
- * @last_end_off: the offset within the page of the end of the last allocation;
- * if 0, the page used is full
- * @hint_idx: the PFN of the page used with the last allocation;
- * together with using this with the @last_end_offset field,
- * a test can be made to see if allocations can be merged
- * with the page used for the last allocation rather than
- * using up a full new page.
- * @list: list entry in the linked list ordered by the memory addresses
- */
-typedef struct bootmem_data {
- unsigned long node_min_pfn;
- unsigned long node_low_pfn;
- void *node_bootmem_map;
- unsigned long last_end_off;
- unsigned long hint_idx;
- struct list_head list;
-} bootmem_data_t;
-
-extern bootmem_data_t bootmem_node_data[];
-#endif
-
-extern unsigned long bootmem_bootmap_pages(unsigned long);
-
-extern unsigned long init_bootmem_node(pg_data_t *pgdat,
- unsigned long freepfn,
- unsigned long startpfn,
- unsigned long endpfn);
-extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
-
-extern unsigned long free_all_bootmem(void);
-extern void reset_node_managed_pages(pg_data_t *pgdat);
-extern void reset_all_zones_managed_pages(void);
-
-extern void free_bootmem_node(pg_data_t *pgdat,
- unsigned long addr,
- unsigned long size);
-extern void free_bootmem(unsigned long physaddr, unsigned long size);
-extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
-
-/*
- * Flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE,
- * the architecture-specific code should honor this).
- *
- * If flags is BOOTMEM_DEFAULT, then the return value is always 0 (success).
- * If flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the memory
- * already was reserved.
- */
-#define BOOTMEM_DEFAULT 0
-#define BOOTMEM_EXCLUSIVE (1<<0)
-
-extern int reserve_bootmem(unsigned long addr,
- unsigned long size,
- int flags);
-extern int reserve_bootmem_node(pg_data_t *pgdat,
- unsigned long physaddr,
- unsigned long size,
- int flags);
-
-extern void *__alloc_bootmem(unsigned long size,
- unsigned long align,
- unsigned long goal);
-extern void *__alloc_bootmem_nopanic(unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-extern void *__alloc_bootmem_node(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-void *__alloc_bootmem_node_high(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-extern void *__alloc_bootmem_node_nopanic(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal,
- unsigned long limit) __malloc;
-extern void *__alloc_bootmem_low(unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-void *__alloc_bootmem_low_nopanic(unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
- unsigned long size,
- unsigned long align,
- unsigned long goal) __malloc;
-
-#ifdef CONFIG_NO_BOOTMEM
-/* We are using top down, so it is safe to use 0 here */
-#define BOOTMEM_LOW_LIMIT 0
-#else
-#define BOOTMEM_LOW_LIMIT __pa(MAX_DMA_ADDRESS)
-#endif
-
-#ifndef ARCH_LOW_ADDRESS_LIMIT
-#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
-#endif
-
-#define alloc_bootmem(x) \
- __alloc_bootmem(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_align(x, align) \
- __alloc_bootmem(x, align, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_nopanic(x) \
- __alloc_bootmem_nopanic(x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages(x) \
- __alloc_bootmem(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_nopanic(x) \
- __alloc_bootmem_nopanic(x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_node(pgdat, x) \
- __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_node_nopanic(pgdat, x) \
- __alloc_bootmem_node_nopanic(pgdat, x, SMP_CACHE_BYTES, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_node(pgdat, x) \
- __alloc_bootmem_node(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-#define alloc_bootmem_pages_node_nopanic(pgdat, x) \
- __alloc_bootmem_node_nopanic(pgdat, x, PAGE_SIZE, BOOTMEM_LOW_LIMIT)
-
-#define alloc_bootmem_low(x) \
- __alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
-#define alloc_bootmem_low_pages_nopanic(x) \
- __alloc_bootmem_low_nopanic(x, PAGE_SIZE, 0)
-#define alloc_bootmem_low_pages(x) \
- __alloc_bootmem_low(x, PAGE_SIZE, 0)
-#define alloc_bootmem_low_pages_node(pgdat, x) \
- __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0)
-
-
-#if defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM)
-
-/* FIXME: use MEMBLOCK_ALLOC_* variants here */
-#define BOOTMEM_ALLOC_ACCESSIBLE 0
-#define BOOTMEM_ALLOC_ANYWHERE (~(phys_addr_t)0)
-
-/* FIXME: Move to memblock.h at a point where we remove nobootmem.c */
-void *memblock_virt_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr,
- phys_addr_t max_addr, int nid);
-void *memblock_virt_alloc_try_nid_nopanic(phys_addr_t size,
- phys_addr_t align, phys_addr_t min_addr,
- phys_addr_t max_addr, int nid);
-void *memblock_virt_alloc_try_nid(phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr, phys_addr_t max_addr, int nid);
-void __memblock_free_early(phys_addr_t base, phys_addr_t size);
-void __memblock_free_late(phys_addr_t base, phys_addr_t size);
-
-static inline void * __init memblock_virt_alloc(
- phys_addr_t size, phys_addr_t align)
-{
- return memblock_virt_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
- BOOTMEM_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_virt_alloc_raw(
- phys_addr_t size, phys_addr_t align)
-{
- return memblock_virt_alloc_try_nid_raw(size, align, BOOTMEM_LOW_LIMIT,
- BOOTMEM_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_virt_alloc_nopanic(
- phys_addr_t size, phys_addr_t align)
-{
- return memblock_virt_alloc_try_nid_nopanic(size, align,
- BOOTMEM_LOW_LIMIT,
- BOOTMEM_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_virt_alloc_low(
- phys_addr_t size, phys_addr_t align)
-{
- return memblock_virt_alloc_try_nid(size, align,
- BOOTMEM_LOW_LIMIT,
- ARCH_LOW_ADDRESS_LIMIT,
- NUMA_NO_NODE);
-}
-static inline void * __init memblock_virt_alloc_low_nopanic(
- phys_addr_t size, phys_addr_t align)
-{
- return memblock_virt_alloc_try_nid_nopanic(size, align,
- BOOTMEM_LOW_LIMIT,
- ARCH_LOW_ADDRESS_LIMIT,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_virt_alloc_from_nopanic(
- phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
- return memblock_virt_alloc_try_nid_nopanic(size, align, min_addr,
- BOOTMEM_ALLOC_ACCESSIBLE,
- NUMA_NO_NODE);
-}
-
-static inline void * __init memblock_virt_alloc_node(
- phys_addr_t size, int nid)
-{
- return memblock_virt_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
- BOOTMEM_ALLOC_ACCESSIBLE, nid);
-}
-
-static inline void * __init memblock_virt_alloc_node_nopanic(
- phys_addr_t size, int nid)
-{
- return memblock_virt_alloc_try_nid_nopanic(size, 0, BOOTMEM_LOW_LIMIT,
- BOOTMEM_ALLOC_ACCESSIBLE,
- nid);
-}
-
-static inline void __init memblock_free_early(
- phys_addr_t base, phys_addr_t size)
-{
- __memblock_free_early(base, size);
-}
-
-static inline void __init memblock_free_early_nid(
- phys_addr_t base, phys_addr_t size, int nid)
-{
- __memblock_free_early(base, size);
-}
-
-static inline void __init memblock_free_late(
- phys_addr_t base, phys_addr_t size)
-{
- __memblock_free_late(base, size);
-}
-
-#else
-
-#define BOOTMEM_ALLOC_ACCESSIBLE 0
-
-
-/* Fall back to all the existing bootmem APIs */
-static inline void * __init memblock_virt_alloc(
- phys_addr_t size, phys_addr_t align)
-{
- if (!align)
- align = SMP_CACHE_BYTES;
- return __alloc_bootmem(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_raw(
- phys_addr_t size, phys_addr_t align)
-{
- if (!align)
- align = SMP_CACHE_BYTES;
- return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_nopanic(
- phys_addr_t size, phys_addr_t align)
-{
- if (!align)
- align = SMP_CACHE_BYTES;
- return __alloc_bootmem_nopanic(size, align, BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_low(
- phys_addr_t size, phys_addr_t align)
-{
- if (!align)
- align = SMP_CACHE_BYTES;
- return __alloc_bootmem_low(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_low_nopanic(
- phys_addr_t size, phys_addr_t align)
-{
- if (!align)
- align = SMP_CACHE_BYTES;
- return __alloc_bootmem_low_nopanic(size, align, 0);
-}
-
-static inline void * __init memblock_virt_alloc_from_nopanic(
- phys_addr_t size, phys_addr_t align, phys_addr_t min_addr)
-{
- return __alloc_bootmem_nopanic(size, align, min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_node(
- phys_addr_t size, int nid)
-{
- return __alloc_bootmem_node(NODE_DATA(nid), size, SMP_CACHE_BYTES,
- BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_node_nopanic(
- phys_addr_t size, int nid)
-{
- return __alloc_bootmem_node_nopanic(NODE_DATA(nid), size,
- SMP_CACHE_BYTES,
- BOOTMEM_LOW_LIMIT);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
- phys_addr_t align, phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
- return __alloc_bootmem_node_high(NODE_DATA(nid), size, align,
- min_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_raw(
- phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
- return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
- min_addr, max_addr);
-}
-
-static inline void * __init memblock_virt_alloc_try_nid_nopanic(
- phys_addr_t size, phys_addr_t align,
- phys_addr_t min_addr, phys_addr_t max_addr, int nid)
-{
- return ___alloc_bootmem_node_nopanic(NODE_DATA(nid), size, align,
- min_addr, max_addr);
-}
-
-static inline void __init memblock_free_early(
- phys_addr_t base, phys_addr_t size)
-{
- free_bootmem(base, size);
-}
-
-static inline void __init memblock_free_early_nid(
- phys_addr_t base, phys_addr_t size, int nid)
-{
- free_bootmem_node(NODE_DATA(nid), base, size);
-}
-
-static inline void __init memblock_free_late(
- phys_addr_t base, phys_addr_t size)
-{
- free_bootmem_late(base, size);
-}
-#endif /* defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM) */
-
-extern void *alloc_large_system_hash(const char *tablename,
- unsigned long bucketsize,
- unsigned long numentries,
- int scale,
- int flags,
- unsigned int *_hash_shift,
- unsigned int *_hash_mask,
- unsigned long low_limit,
- unsigned long high_limit);
-
-#define HASH_EARLY 0x00000001 /* Allocating during early boot? */
-#define HASH_SMALL 0x00000002 /* sub-page allocation allowed, min
- * shift passed via *_hash_shift */
-#define HASH_ZERO 0x00000004 /* Zero allocated hash table */
-
-/* Only NUMA needs hash distribution. 64bit NUMA architectures have
- * sufficient vmalloc space.
- */
-#ifdef CONFIG_NUMA
-#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
-extern int hashdist; /* Distribute hashes across NUMA nodes? */
-#else
-#define hashdist (0)
-#endif
-
-
-#endif /* _LINUX_BOOTMEM_H */
diff --git a/include/linux/compat.h b/include/linux/compat.h
index d30e4dbd4be2..06e77473f175 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -488,8 +488,11 @@ put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
compat_sigset_t v;
switch (_NSIG_WORDS) {
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
+ /* fall through */
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
+ /* fall through */
case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
+ /* fall through */
case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
}
return copy_to_user(compat, &v, size) ? -EFAULT : 0;
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index dde947083d4e..c6fb869a81c0 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -11,7 +11,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * Authors: Jérôme Glisse <jglisse@redhat.com>
+ * Authors: Jérôme Glisse <jglisse@redhat.com>
*/
/*
* Heterogeneous Memory Management (HMM)
@@ -274,14 +274,29 @@ static inline uint64_t hmm_pfn_from_pfn(const struct hmm_range *range,
struct hmm_mirror;
/*
- * enum hmm_update_type - type of update
+ * enum hmm_update_event - type of update
* @HMM_UPDATE_INVALIDATE: invalidate range (no indication as to why)
*/
-enum hmm_update_type {
+enum hmm_update_event {
HMM_UPDATE_INVALIDATE,
};
/*
+ * struct hmm_update - HMM update informations for callback
+ *
+ * @start: virtual start address of the range to update
+ * @end: virtual end address of the range to update
+ * @event: event triggering the update (what is happening)
+ * @blockable: can the callback block/sleep ?
+ */
+struct hmm_update {
+ unsigned long start;
+ unsigned long end;
+ enum hmm_update_event event;
+ bool blockable;
+};
+
+/*
* struct hmm_mirror_ops - HMM mirror device operations callback
*
* @update: callback to update range on a device
@@ -300,9 +315,9 @@ struct hmm_mirror_ops {
/* sync_cpu_device_pagetables() - synchronize page tables
*
* @mirror: pointer to struct hmm_mirror
- * @update_type: type of update that occurred to the CPU page table
- * @start: virtual start address of the range to update
- * @end: virtual end address of the range to update
+ * @update: update informations (see struct hmm_update)
+ * Returns: -EAGAIN if update.blockable false and callback need to
+ * block, 0 otherwise.
*
* This callback ultimately originates from mmu_notifiers when the CPU
* page table is updated. The device driver must update its page table
@@ -313,10 +328,8 @@ struct hmm_mirror_ops {
* page tables are completely updated (TLBs flushed, etc); this is a
* synchronous call.
*/
- void (*sync_cpu_device_pagetables)(struct hmm_mirror *mirror,
- enum hmm_update_type update_type,
- unsigned long start,
- unsigned long end);
+ int (*sync_cpu_device_pagetables)(struct hmm_mirror *mirror,
+ const struct hmm_update *update);
};
/*
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 2acdd046df2d..aee299a6aa76 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -2,7 +2,6 @@
#define _LINUX_MEMBLOCK_H
#ifdef __KERNEL__
-#ifdef CONFIG_HAVE_MEMBLOCK
/*
* Logical memory blocks.
*
@@ -16,6 +15,19 @@
#include <linux/init.h>
#include <linux/mm.h>
+#include <asm/dma.h>
+
+extern unsigned long max_low_pfn;
+extern unsigned long min_low_pfn;
+
+/*
+ * highest page
+ */
+extern unsigned long max_pfn;
+/*
+ * highest possible page
+ */
+extern unsigned long long max_possible_pfn;
#define INIT_MEMBLOCK_REGIONS 128
#define INIT_PHYSMEM_REGIONS 4
@@ -120,6 +132,10 @@ int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
int memblock_clear_nomap(phys_addr_t base, phys_addr_t size);
enum memblock_flags choose_memblock_flags(void);
+unsigned long memblock_free_all(void);
+void reset_node_managed_pages(pg_data_t *pgdat);
+void reset_all_zones_managed_pages(void);
+
/* Low level functions */
int memblock_add_range(struct memblock_type *type,
phys_addr_t base, phys_addr_t size,
@@ -301,10 +317,116 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
}
#endif /* CONFIG_HAVE_MEMBLOCK_NODE_MAP */
-phys_addr_t memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
-phys_addr_t memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
+/* Flags for memblock allocation APIs */
+#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
+#define MEMBLOCK_ALLOC_ACCESSIBLE 0
+
+/* We are using top down, so it is safe to use 0 here */
+#define MEMBLOCK_LOW_LIMIT 0
+
+#ifndef ARCH_LOW_ADDRESS_LIMIT
+#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL
+#endif
+
+phys_addr_t memblock_phys_alloc_nid(phys_addr_t size, phys_addr_t align, int nid);
+phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
+
+phys_addr_t memblock_phys_alloc(phys_addr_t size, phys_addr_t align);
+
+void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
+ phys_addr_t min_addr, phys_addr_t max_addr,
+ int nid);
+void *memblock_alloc_try_nid_nopanic(phys_addr_t size, phys_addr_t align,
+ phys_addr_t min_addr, phys_addr_t max_addr,
+ int nid);
+void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
+ phys_addr_t min_addr, phys_addr_t max_addr,
+ int nid);
+
+static inline void * __init memblock_alloc(phys_addr_t size, phys_addr_t align)
+{
+ return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_raw(phys_addr_t size,
+ phys_addr_t align)
+{
+ return memblock_alloc_try_nid_raw(size, align, MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE,
+ NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_from(phys_addr_t size,
+ phys_addr_t align,
+ phys_addr_t min_addr)
+{
+ return memblock_alloc_try_nid(size, align, min_addr,
+ MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_nopanic(phys_addr_t size,
+ phys_addr_t align)
+{
+ return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE,
+ NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_low(phys_addr_t size,
+ phys_addr_t align)
+{
+ return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+ ARCH_LOW_ADDRESS_LIMIT, NUMA_NO_NODE);
+}
+static inline void * __init memblock_alloc_low_nopanic(phys_addr_t size,
+ phys_addr_t align)
+{
+ return memblock_alloc_try_nid_nopanic(size, align, MEMBLOCK_LOW_LIMIT,
+ ARCH_LOW_ADDRESS_LIMIT,
+ NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_from_nopanic(phys_addr_t size,
+ phys_addr_t align,
+ phys_addr_t min_addr)
+{
+ return memblock_alloc_try_nid_nopanic(size, align, min_addr,
+ MEMBLOCK_ALLOC_ACCESSIBLE,
+ NUMA_NO_NODE);
+}
+
+static inline void * __init memblock_alloc_node(phys_addr_t size,
+ phys_addr_t align, int nid)
+{
+ return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+}
+
+static inline void * __init memblock_alloc_node_nopanic(phys_addr_t size,
+ int nid)
+{
+ return memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES,
+ MEMBLOCK_LOW_LIMIT,
+ MEMBLOCK_ALLOC_ACCESSIBLE, nid);
+}
+
+static inline void __init memblock_free_early(phys_addr_t base,
+ phys_addr_t size)
+{
+ __memblock_free_early(base, size);
+}
+
+static inline void __init memblock_free_early_nid(phys_addr_t base,
+ phys_addr_t size, int nid)
+{
+ __memblock_free_early(base, size);
+}
-phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align);
+static inline void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
+{
+ __memblock_free_late(base, size);
+}
/*
* Set the allocation direction to bottom-up or top-down.
@@ -324,10 +446,6 @@ static inline bool memblock_bottom_up(void)
return memblock.bottom_up;
}
-/* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
-#define MEMBLOCK_ALLOC_ANYWHERE (~(phys_addr_t)0)
-#define MEMBLOCK_ALLOC_ACCESSIBLE 0
-
phys_addr_t __init memblock_alloc_range(phys_addr_t size, phys_addr_t align,
phys_addr_t start, phys_addr_t end,
enum memblock_flags flags);
@@ -433,6 +551,31 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
i < memblock_type->cnt; \
i++, rgn = &memblock_type->regions[i])
+extern void *alloc_large_system_hash(const char *tablename,
+ unsigned long bucketsize,
+ unsigned long numentries,
+ int scale,
+ int flags,
+ unsigned int *_hash_shift,
+ unsigned int *_hash_mask,
+ unsigned long low_limit,
+ unsigned long high_limit);
+
+#define HASH_EARLY 0x00000001 /* Allocating during early boot? */
+#define HASH_SMALL 0x00000002 /* sub-page allocation allowed, min
+ * shift passed via *_hash_shift */
+#define HASH_ZERO 0x00000004 /* Zero allocated hash table */
+
+/* Only NUMA needs hash distribution. 64bit NUMA architectures have
+ * sufficient vmalloc space.
+ */
+#ifdef CONFIG_NUMA
+#define HASHDIST_DEFAULT IS_ENABLED(CONFIG_64BIT)
+extern int hashdist; /* Distribute hashes across NUMA nodes? */
+#else
+#define hashdist (0)
+#endif
+
#ifdef CONFIG_MEMTEST
extern void early_memtest(phys_addr_t start, phys_addr_t end);
#else
@@ -440,12 +583,6 @@ static inline void early_memtest(phys_addr_t start, phys_addr_t end)
{
}
#endif
-#else
-static inline phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align)
-{
- return 0;
-}
-#endif /* CONFIG_HAVE_MEMBLOCK */
#endif /* __KERNEL__ */
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 34a28227068d..ffd9cd10fcf3 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -301,6 +301,7 @@ extern bool is_mem_section_removable(unsigned long pfn, unsigned long nr_pages);
extern void try_offline_node(int nid);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern void remove_memory(int nid, u64 start, u64 size);
+extern void __remove_memory(int nid, u64 start, u64 size);
#else
static inline bool is_mem_section_removable(unsigned long pfn,
@@ -317,11 +318,13 @@ static inline int offline_pages(unsigned long start_pfn, unsigned long nr_pages)
}
static inline void remove_memory(int nid, u64 start, u64 size) {}
+static inline void __remove_memory(int nid, u64 start, u64 size) {}
#endif /* CONFIG_MEMORY_HOTREMOVE */
extern void __ref free_area_init_core_hotplug(int nid);
extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn,
void *arg, int (*func)(struct memory_block *, void *));
+extern int __add_memory(int nid, u64 start, u64 size);
extern int add_memory(int nid, u64 start, u64 size);
extern int add_memory_resource(int nid, struct resource *resource, bool online);
extern int arch_add_memory(int nid, u64 start, u64 size,
@@ -330,7 +333,6 @@ extern void move_pfn_range_to_zone(struct zone *zone, unsigned long start_pfn,
unsigned long nr_pages, struct vmem_altmap *altmap);
extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
extern bool is_memblock_offlined(struct memory_block *mem);
-extern void remove_memory(int nid, u64 start, u64 size);
extern int sparse_add_one_section(struct pglist_data *pgdat,
unsigned long start_pfn, struct vmem_altmap *altmap);
extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1e52b8fd1685..fcf9cc9d535f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2163,7 +2163,7 @@ extern int __meminit __early_pfn_to_nid(unsigned long pfn,
struct mminit_pfnnid_cache *state);
#endif
-#if defined(CONFIG_HAVE_MEMBLOCK) && !defined(CONFIG_FLAT_NODE_MEM_MAP)
+#if !defined(CONFIG_FLAT_NODE_MEM_MAP)
void zero_resv_unavail(void);
#else
static inline void zero_resv_unavail(void) {}
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 9f0caccd5833..847705a6d0ec 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -633,9 +633,6 @@ typedef struct pglist_data {
struct page_ext *node_page_ext;
#endif
#endif
-#ifndef CONFIG_NO_BOOTMEM
- struct bootmem_data *bdata;
-#endif
#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT)
/*
* Must be held any time you expect node_start_pfn, node_present_pages
@@ -869,7 +866,7 @@ static inline int is_highmem_idx(enum zone_type idx)
}
/**
- * is_highmem - helper function to quickly check if a struct zone is a
+ * is_highmem - helper function to quickly check if a struct zone is a
* highmem zone or not. This is an attempt to keep references
* to ZONE_{DMA/NORMAL/HIGHMEM/etc} in general code to a minimum.
* @zone - pointer to struct zone variable
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 2d2096ba1cfe..1ce8e264a269 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -91,8 +91,7 @@
extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
extern __PCPU_ATTRS(sec) __typeof__(type) name; \
- __PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES __weak \
- __typeof__(type) name
+ __PCPU_ATTRS(sec) __weak __typeof__(type) name
#else
/*
* Normal declaration and definition macros.
@@ -101,8 +100,7 @@
extern __PCPU_ATTRS(sec) __typeof__(type) name
#define DEFINE_PER_CPU_SECTION(type, name, sec) \
- __PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES \
- __typeof__(type) name
+ __PCPU_ATTRS(sec) __typeof__(type) name
#endif
/*
diff --git a/include/linux/rbtree_augmented.h b/include/linux/rbtree_augmented.h
index af8a61be2d8d..9510c677ac70 100644
--- a/include/linux/rbtree_augmented.h
+++ b/include/linux/rbtree_augmented.h
@@ -51,8 +51,8 @@ extern void __rb_insert_augmented(struct rb_node *node,
*
* On insertion, the user must update the augmented information on the path
* leading to the inserted node, then call rb_link_node() as usual and
- * rb_augment_inserted() instead of the usual rb_insert_color() call.
- * If rb_augment_inserted() rebalances the rbtree, it will callback into
+ * rb_insert_augmented() instead of the usual rb_insert_color() call.
+ * If rb_insert_augmented() rebalances the rbtree, it will callback into
* a user provided function to update the augmented information on the
* affected subtrees.
*/
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 200ed96a05af..f428e86f4800 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -129,9 +129,11 @@ static inline void name(sigset_t *r, const sigset_t *a, const sigset_t *b) \
b3 = b->sig[3]; b2 = b->sig[2]; \
r->sig[3] = op(a3, b3); \
r->sig[2] = op(a2, b2); \
+ /* fall through */ \
case 2: \
a1 = a->sig[1]; b1 = b->sig[1]; \
r->sig[1] = op(a1, b1); \
+ /* fall through */ \
case 1: \
a0 = a->sig[0]; b0 = b->sig[0]; \
r->sig[0] = op(a0, b0); \
@@ -161,7 +163,9 @@ static inline void name(sigset_t *set) \
switch (_NSIG_WORDS) { \
case 4: set->sig[3] = op(set->sig[3]); \
set->sig[2] = op(set->sig[2]); \
+ /* fall through */ \
case 2: set->sig[1] = op(set->sig[1]); \
+ /* fall through */ \
case 1: set->sig[0] = op(set->sig[0]); \
break; \
default: \
@@ -182,6 +186,7 @@ static inline void sigemptyset(sigset_t *set)
memset(set, 0, sizeof(sigset_t));
break;
case 2: set->sig[1] = 0;
+ /* fall through */
case 1: set->sig[0] = 0;
break;
}
@@ -194,6 +199,7 @@ static inline void sigfillset(sigset_t *set)
memset(set, -1, sizeof(sigset_t));
break;
case 2: set->sig[1] = -1;
+ /* fall through */
case 1: set->sig[0] = -1;
break;
}