diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/assoc_array.c | 4 | ||||
| -rw-r--r-- | lib/lz4/lz4defs.h | 25 | ||||
| -rw-r--r-- | lib/stackdepot.c | 10 |
3 files changed, 21 insertions, 18 deletions
diff --git a/lib/assoc_array.c b/lib/assoc_array.c index 03dd576e6773..59fd7c0b119c 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -524,7 +524,9 @@ static bool assoc_array_insert_into_terminal_node(struct assoc_array_edit *edit, free_slot = i; continue; } - if (ops->compare_object(assoc_array_ptr_to_leaf(ptr), index_key)) { + if (assoc_array_ptr_is_leaf(ptr) && + ops->compare_object(assoc_array_ptr_to_leaf(ptr), + index_key)) { pr_devel("replace in slot %d\n", i); edit->leaf_p = &node->slots[i]; edit->dead_leaf = node->slots[i]; diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h index abcecdc2d0f2..c79d7ea8a38e 100644 --- a/lib/lz4/lz4defs.h +++ b/lib/lz4/lz4defs.h @@ -11,8 +11,7 @@ /* * Detects 64 bits mode */ -#if (defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) \ - || defined(__ppc64__) || defined(__LP64__)) +#if defined(CONFIG_64BIT) #define LZ4_ARCH64 1 #else #define LZ4_ARCH64 0 @@ -25,9 +24,7 @@ typedef struct _U16_S { u16 v; } U16_S; typedef struct _U32_S { u32 v; } U32_S; typedef struct _U64_S { u64 v; } U64_S; -#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) \ - || defined(CONFIG_ARM) && __LINUX_ARM_ARCH__ >= 6 \ - && defined(ARM_EFFICIENT_UNALIGNED_ACCESS) +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) #define A16(x) (((U16_S *)(x))->v) #define A32(x) (((U32_S *)(x))->v) @@ -35,6 +32,10 @@ typedef struct _U64_S { u64 v; } U64_S; #define PUT4(s, d) (A32(d) = A32(s)) #define PUT8(s, d) (A64(d) = A64(s)) + +#define LZ4_READ_LITTLEENDIAN_16(d, s, p) \ + (d = s - A16(p)) + #define LZ4_WRITE_LITTLEENDIAN_16(p, v) \ do { \ A16(p) = v; \ @@ -51,10 +52,13 @@ typedef struct _U64_S { u64 v; } U64_S; #define PUT8(s, d) \ put_unaligned(get_unaligned((const u64 *) s), (u64 *) d) -#define LZ4_WRITE_LITTLEENDIAN_16(p, v) \ - do { \ - put_unaligned(v, (u16 *)(p)); \ - p += 2; \ +#define LZ4_READ_LITTLEENDIAN_16(d, s, p) \ + (d = s - get_unaligned_le16(p)) + +#define LZ4_WRITE_LITTLEENDIAN_16(p, v) \ + do { \ + put_unaligned_le16(v, (u16 *)(p)); \ + p += 2; \ } while (0) #endif @@ -140,9 +144,6 @@ typedef struct _U64_S { u64 v; } U64_S; #endif -#define LZ4_READ_LITTLEENDIAN_16(d, s, p) \ - (d = s - get_unaligned_le16(p)) - #define LZ4_WILDCOPY(s, d, e) \ do { \ LZ4_COPYPACKET(s, d); \ diff --git a/lib/stackdepot.c b/lib/stackdepot.c index 654c9d87e83a..53ad6c0831ae 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -42,12 +42,14 @@ #define DEPOT_STACK_BITS (sizeof(depot_stack_handle_t) * 8) +#define STACK_ALLOC_NULL_PROTECTION_BITS 1 #define STACK_ALLOC_ORDER 2 /* 'Slab' size order for stack depot, 4 pages */ #define STACK_ALLOC_SIZE (1LL << (PAGE_SHIFT + STACK_ALLOC_ORDER)) #define STACK_ALLOC_ALIGN 4 #define STACK_ALLOC_OFFSET_BITS (STACK_ALLOC_ORDER + PAGE_SHIFT - \ STACK_ALLOC_ALIGN) -#define STACK_ALLOC_INDEX_BITS (DEPOT_STACK_BITS - STACK_ALLOC_OFFSET_BITS) +#define STACK_ALLOC_INDEX_BITS (DEPOT_STACK_BITS - \ + STACK_ALLOC_NULL_PROTECTION_BITS - STACK_ALLOC_OFFSET_BITS) #define STACK_ALLOC_SLABS_CAP 1024 #define STACK_ALLOC_MAX_SLABS \ (((1LL << (STACK_ALLOC_INDEX_BITS)) < STACK_ALLOC_SLABS_CAP) ? \ @@ -59,6 +61,7 @@ union handle_parts { struct { u32 slabindex : STACK_ALLOC_INDEX_BITS; u32 offset : STACK_ALLOC_OFFSET_BITS; + u32 valid : STACK_ALLOC_NULL_PROTECTION_BITS; }; }; @@ -136,6 +139,7 @@ static struct stack_record *depot_alloc_stack(unsigned long *entries, int size, stack->size = size; stack->handle.slabindex = depot_index; stack->handle.offset = depot_offset >> STACK_ALLOC_ALIGN; + stack->handle.valid = 1; memcpy(stack->entries, entries, size * sizeof(unsigned long)); depot_offset += required_size; @@ -210,10 +214,6 @@ depot_stack_handle_t depot_save_stack(struct stack_trace *trace, goto fast_exit; hash = hash_stack(trace->entries, trace->nr_entries); - /* Bad luck, we won't store this stack. */ - if (hash == 0) - goto exit; - bucket = &stack_table[hash & STACK_HASH_MASK]; /* |