diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2014-01-21 15:50:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-21 16:19:48 -0800 |
| commit | 560dca27a6b36015e4f69a4ceba0ee5be0707c17 (patch) | |
| tree | 961006de1f5ef34d462bfc7de5018b63ef56061d /mm/memblock.c | |
| parent | 9a28f9dc8d10b619af9a37b1e27c41ada5415629 (diff) | |
| download | lwn-560dca27a6b36015e4f69a4ceba0ee5be0707c17.tar.gz lwn-560dca27a6b36015e4f69a4ceba0ee5be0707c17.zip | |
mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter
Check nid parameter and produce warning if it has deprecated
MAX_NUMNODES value. Also re-assign NUMA_NO_NODE value to the nid
parameter in this case.
These will help to identify the wrong API usage (the caller) and make
code simpler.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memblock.c')
| -rw-r--r-- | mm/memblock.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 018e55dc004d..1c2ef2c7edab 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -785,11 +785,9 @@ void __init_memblock __next_free_mem_range(u64 *idx, int nid, struct memblock_type *rsv = &memblock.reserved; int mi = *idx & 0xffffffff; int ri = *idx >> 32; - bool check_node = (nid != NUMA_NO_NODE) && (nid != MAX_NUMNODES); - if (nid == MAX_NUMNODES) - pr_warn_once("%s: Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n", - __func__); + if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n")) + nid = NUMA_NO_NODE; for ( ; mi < mem->cnt; mi++) { struct memblock_region *m = &mem->regions[mi]; @@ -797,7 +795,7 @@ void __init_memblock __next_free_mem_range(u64 *idx, int nid, phys_addr_t m_end = m->base + m->size; /* only memory regions are associated with nodes, check it */ - if (check_node && nid != memblock_get_region_node(m)) + if (nid != NUMA_NO_NODE && nid != memblock_get_region_node(m)) continue; /* scan areas before each reservation for intersection */ @@ -858,11 +856,9 @@ void __init_memblock __next_free_mem_range_rev(u64 *idx, int nid, struct memblock_type *rsv = &memblock.reserved; int mi = *idx & 0xffffffff; int ri = *idx >> 32; - bool check_node = (nid != NUMA_NO_NODE) && (nid != MAX_NUMNODES); - if (nid == MAX_NUMNODES) - pr_warn_once("%s: Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n", - __func__); + if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n")) + nid = NUMA_NO_NODE; if (*idx == (u64)ULLONG_MAX) { mi = mem->cnt - 1; @@ -875,7 +871,7 @@ void __init_memblock __next_free_mem_range_rev(u64 *idx, int nid, phys_addr_t m_end = m->base + m->size; /* only memory regions are associated with nodes, check it */ - if (check_node && nid != memblock_get_region_node(m)) + if (nid != NUMA_NO_NODE && nid != memblock_get_region_node(m)) continue; /* skip hotpluggable memory regions if needed */ @@ -1067,9 +1063,8 @@ static void * __init memblock_virt_alloc_internal( phys_addr_t alloc; void *ptr; - if (nid == MAX_NUMNODES) - pr_warn("%s: usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE\n", - __func__); + if (WARN_ONCE(nid == MAX_NUMNODES, "Usage of MAX_NUMNODES is deprecated. Use NUMA_NO_NODE instead\n")) + nid = NUMA_NO_NODE; /* * Detect any accidental use of these APIs after slab is ready, as at |