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memblock: debug enhancements

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Improve tracking of early memory allocations when memblock debug is
 enabled:
 
 * Add memblock_dbg() to memblock_phys_alloc_range() to get details about
   its usage
 * Make memblock allocator wrappers actually inline to track their callers
   in memblock debug messages
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Merge tag 'memblock-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock updates from Mike Rapoport:
 "memblock debug enhancements.

  Improve tracking of early memory allocations when memblock debug is
  enabled:

   - Add memblock_dbg() to memblock_phys_alloc_range() to get details
     about its usage

   - Make memblock allocator wrappers actually inline to track their
     callers in memblock debug messages"

* tag 'memblock-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  mm: memblock: drop __init from memblock functions to make it inline
  mm: memblock: add more debug logs
This commit is contained in:
Linus Torvalds 2020-12-16 14:44:53 -08:00
commit fff875a183
2 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
include/linux/memblock.h
View File

@ -404,13 +404,13 @@ 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)
static __always_inline void *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,
static inline void *memblock_alloc_raw(phys_addr_t size,
phys_addr_t align)
{
return memblock_alloc_try_nid_raw(size, align, MEMBLOCK_LOW_LIMIT,
@ -418,7 +418,7 @@ static inline void * __init memblock_alloc_raw(phys_addr_t size,
NUMA_NO_NODE);
}
static inline void * __init memblock_alloc_from(phys_addr_t size,
static inline void *memblock_alloc_from(phys_addr_t size,
phys_addr_t align,
phys_addr_t min_addr)
{
@ -426,33 +426,33 @@ static inline void * __init memblock_alloc_from(phys_addr_t size,
MEMBLOCK_ALLOC_ACCESSIBLE, NUMA_NO_NODE);
}
static inline void * __init memblock_alloc_low(phys_addr_t size,
static inline void *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_node(phys_addr_t size,
static inline void *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_free_early(phys_addr_t base,
static inline void memblock_free_early(phys_addr_t base,
phys_addr_t size)
{
memblock_free(base, size);
}
static inline void __init memblock_free_early_nid(phys_addr_t base,
static inline void memblock_free_early_nid(phys_addr_t base,
phys_addr_t size, int nid)
{
memblock_free(base, size);
}
static inline void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
static inline void memblock_free_late(phys_addr_t base, phys_addr_t size)
{
__memblock_free_late(base, size);
}
@ -460,7 +460,7 @@ static inline void __init memblock_free_late(phys_addr_t base, phys_addr_t size)
/*
* Set the allocation direction to bottom-up or top-down.
*/
static inline void __init memblock_set_bottom_up(bool enable)
static inline void memblock_set_bottom_up(bool enable)
{
memblock.bottom_up = enable;
}

3
mm/memblock.c
View File

@ -1419,6 +1419,9 @@ phys_addr_t __init memblock_phys_alloc_range(phys_addr_t size,
phys_addr_t start,
phys_addr_t end)
{
memblock_dbg("%s: %llu bytes align=0x%llx from=%pa max_addr=%pa %pS\n",
__func__, (u64)size, (u64)align, &start, &end,
(void *)_RET_IP_);
return memblock_alloc_range_nid(size, align, start, end, NUMA_NO_NODE,
false);
}