diff options
| author | Tejun Heo <tj@kernel.org> | 2011-07-12 11:58:09 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-07-14 03:36:01 +0400 |
| commit | 1f5026a7e21e409c2b9dd54f6dfb9446511fb7c5 (patch) | |
| tree | bcf0529d5f05ea8b685d6c0fddcb3197c2fab49c /mm | |
| parent | 348968eb151e2569ad0ebe19b2f9c3c25b5c816a (diff) | |
| download | linux-1f5026a7e21e409c2b9dd54f6dfb9446511fb7c5.tar.xz | |
memblock: Kill MEMBLOCK_ERROR
25818f0f28 (memblock: Make MEMBLOCK_ERROR be 0) thankfully made
MEMBLOCK_ERROR 0 and there already are codes which expect error return
to be 0. There's no point in keeping MEMBLOCK_ERROR around. End its
misery.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1310457490-3356-6-git-send-email-tj@kernel.org
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memblock.c | 21 | ||||
| -rw-r--r-- | mm/nobootmem.c | 2 | ||||
| -rw-r--r-- | mm/page_alloc.c | 4 |
3 files changed, 13 insertions, 14 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 9882a88d4a10..196993661346 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -74,7 +74,7 @@ static phys_addr_t __init_memblock memblock_find_region(phys_addr_t start, phys_ /* In case, huge size is requested */ if (end < size) - return MEMBLOCK_ERROR; + return 0; base = round_down(end - size, align); @@ -94,7 +94,7 @@ static phys_addr_t __init_memblock memblock_find_region(phys_addr_t start, phys_ base = round_down(res_base - size, align); } - return MEMBLOCK_ERROR; + return 0; } static phys_addr_t __init_memblock memblock_find_base(phys_addr_t size, @@ -126,10 +126,10 @@ static phys_addr_t __init_memblock memblock_find_base(phys_addr_t size, if (bottom >= top) continue; found = memblock_find_region(bottom, top, size, align); - if (found != MEMBLOCK_ERROR) + if (found) return found; } - return MEMBLOCK_ERROR; + return 0; } /* @@ -214,10 +214,10 @@ static int __init_memblock memblock_double_array(struct memblock_type *type) */ if (use_slab) { new_array = kmalloc(new_size, GFP_KERNEL); - addr = new_array == NULL ? MEMBLOCK_ERROR : __pa(new_array); + addr = new_array ? __pa(new_array) : 0; } else addr = memblock_find_base(new_size, sizeof(phys_addr_t), 0, MEMBLOCK_ALLOC_ACCESSIBLE); - if (addr == MEMBLOCK_ERROR) { + if (!addr) { pr_err("memblock: Failed to double %s array from %ld to %ld entries !\n", memblock_type_name(type), type->max, type->max * 2); return -1; @@ -478,8 +478,7 @@ phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, ph size = round_up(size, align); found = memblock_find_base(size, align, 0, max_addr); - if (found != MEMBLOCK_ERROR && - !memblock_add_region(&memblock.reserved, found, size)) + if (found && !memblock_add_region(&memblock.reserved, found, size)) return found; return 0; @@ -559,14 +558,14 @@ static phys_addr_t __init memblock_alloc_nid_region(struct memblock_region *mp, this_end = memblock_nid_range(start, end, &this_nid); if (this_nid == nid) { phys_addr_t ret = memblock_find_region(start, this_end, size, align); - if (ret != MEMBLOCK_ERROR && + if (ret && !memblock_add_region(&memblock.reserved, ret, size)) return ret; } start = this_end; } - return MEMBLOCK_ERROR; + return 0; } phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int nid) @@ -588,7 +587,7 @@ phys_addr_t __init memblock_alloc_nid(phys_addr_t size, phys_addr_t align, int n for (i = 0; i < mem->cnt; i++) { phys_addr_t ret = memblock_alloc_nid_region(&mem->regions[i], size, align, nid); - if (ret != MEMBLOCK_ERROR) + if (ret) return ret; } diff --git a/mm/nobootmem.c b/mm/nobootmem.c index 6e93dc7f2586..5b0eb06ecb4e 100644 --- a/mm/nobootmem.c +++ b/mm/nobootmem.c @@ -43,7 +43,7 @@ static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align, addr = find_memory_core_early(nid, size, align, goal, limit); - if (addr == MEMBLOCK_ERROR) + if (!addr) return NULL; ptr = phys_to_virt(addr); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b6da6ed818a8..c7f0e5be4a31 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3878,13 +3878,13 @@ u64 __init find_memory_core_early(int nid, u64 size, u64 align, addr = memblock_find_in_range(final_start, final_end, size, align); - if (addr == MEMBLOCK_ERROR) + if (!addr) continue; return addr; } - return MEMBLOCK_ERROR; + return 0; } #endif |