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>
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 3032644..13cf05a 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -68,7 +68,7 @@
#endif
base = memblock_find_in_range(start, good_end, tables, PAGE_SIZE);
- if (base == MEMBLOCK_ERROR)
+ if (!base)
panic("Cannot find space for the kernel page tables");
pgt_buf_start = base >> PAGE_SHIFT;
diff --git a/arch/x86/mm/memblock.c b/arch/x86/mm/memblock.c
index 992da5e..e126117 100644
--- a/arch/x86/mm/memblock.c
+++ b/arch/x86/mm/memblock.c
@@ -66,7 +66,7 @@
return addr;
}
- return MEMBLOCK_ERROR;
+ return 0;
}
static __init struct range *find_range_array(int count)
@@ -78,7 +78,7 @@
end = memblock.current_limit;
mem = memblock_find_in_range(0, end, size, sizeof(struct range));
- if (mem == MEMBLOCK_ERROR)
+ if (!mem)
panic("can not find more space for range array");
/*
@@ -274,7 +274,7 @@
{
u64 addr;
addr = find_memory_core_early(nid, size, align, start, end);
- if (addr != MEMBLOCK_ERROR)
+ if (addr)
return addr;
/* Fallback, should already have start end within node range */
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index fbeaaf4..fa1015d 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -226,10 +226,10 @@
} else {
nd_pa = memblock_x86_find_in_range_node(nid, nd_low, nd_high,
nd_size, SMP_CACHE_BYTES);
- if (nd_pa == MEMBLOCK_ERROR)
+ if (!nd_pa)
nd_pa = memblock_find_in_range(nd_low, nd_high,
nd_size, SMP_CACHE_BYTES);
- if (nd_pa == MEMBLOCK_ERROR) {
+ if (!nd_pa) {
pr_err("Cannot find %zu bytes in node %d\n",
nd_size, nid);
return;
@@ -395,7 +395,7 @@
phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped),
size, PAGE_SIZE);
- if (phys == MEMBLOCK_ERROR) {
+ if (!phys) {
pr_warning("NUMA: Warning: can't allocate distance table!\n");
/* don't retry until explicitly reset */
numa_distance = (void *)1LU;
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 3adebe7..58878b5 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -199,7 +199,7 @@
/* allocate node memory and the lowmem remap area */
node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES);
- if (node_pa == MEMBLOCK_ERROR) {
+ if (!node_pa) {
pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n",
size, nid);
return;
@@ -209,7 +209,7 @@
remap_pa = memblock_find_in_range(min_low_pfn << PAGE_SHIFT,
max_low_pfn << PAGE_SHIFT,
size, LARGE_PAGE_BYTES);
- if (remap_pa == MEMBLOCK_ERROR) {
+ if (!remap_pa) {
pr_warning("remap_alloc: failed to allocate %lu bytes remap area for node %d\n",
size, nid);
memblock_x86_free_range(node_pa, node_pa + size);
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index d0ed086..e3d471c 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -351,7 +351,7 @@
phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped),
phys_size, PAGE_SIZE);
- if (phys == MEMBLOCK_ERROR) {
+ if (!phys) {
pr_warning("NUMA: Warning: can't allocate copy of distance table, disabling emulation\n");
goto no_emu;
}