Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix

Signed-off-by: Ingo Molnar <mingo@kernel.org>

67 files changed, 3362 insertions, 1174 deletions

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/bitops.h b/include/linux/bitops.h
index 7ddb1349394d..705f7c442691 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -236,33 +236,33 @@ static __always_inline void __assign_bit(long nr, volatile unsigned long *addr,
 #ifdef __KERNEL__
 
 #ifndef set_mask_bits
-#define set_mask_bits(ptr, _mask, _bits)	\
+#define set_mask_bits(ptr, mask, bits)	\
 ({								\
-	const typeof(*ptr) mask = (_mask), bits = (_bits);	\
-	typeof(*ptr) old, new;					\
+	const typeof(*(ptr)) mask__ = (mask), bits__ = (bits);	\
+	typeof(*(ptr)) old__, new__;				\
 								\
 	do {							\
-		old = READ_ONCE(*ptr);			\
-		new = (old & ~mask) | bits;			\
-	} while (cmpxchg(ptr, old, new) != old);		\
+		old__ = READ_ONCE(*(ptr));			\
+		new__ = (old__ & ~mask__) | bits__;		\
+	} while (cmpxchg(ptr, old__, new__) != old__);		\
 								\
-	new;							\
+	new__;							\
 })
 #endif
 
 #ifndef bit_clear_unless
-#define bit_clear_unless(ptr, _clear, _test)	\
+#define bit_clear_unless(ptr, clear, test)	\
 ({								\
-	const typeof(*ptr) clear = (_clear), test = (_test);	\
-	typeof(*ptr) old, new;					\
+	const typeof(*(ptr)) clear__ = (clear), test__ = (test);\
+	typeof(*(ptr)) old__, new__;				\
 								\
 	do {							\
-		old = READ_ONCE(*ptr);			\
-		new = old & ~clear;				\
-	} while (!(old & test) &&				\
-		 cmpxchg(ptr, old, new) != old);		\
+		old__ = READ_ONCE(*(ptr));			\
+		new__ = old__ & ~clear__;			\
+	} while (!(old__ & test__) &&				\
+		 cmpxchg(ptr, old__, new__) != old__);		\
 								\
-	!(old & test);						\
+	!(old__ & test__);					\
 })
 #endif
 
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/ceph/libceph.h b/include/linux/ceph/libceph.h
index 49c93b9308d7..68bb09c29ce8 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -81,7 +81,13 @@ struct ceph_options {