We don't need to panic in some case, like for swiotlb preallocating.
Signed-off-by: Yinghai Lu <ying...@kernel.org>
---
include/linux/bootmem.h | 5 +++++
mm/bootmem.c | 8 ++++++++
mm/nobootmem.c | 8 ++++++++
3 files changed, 21 insertions(+)
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 3f778c2..3cd16ba 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -99,6 +99,9 @@ void *___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
extern void *__alloc_bootmem_low(unsigned long size,
unsigned long align,
unsigned long goal);
+void *__alloc_bootmem_low_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal);
extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
unsigned long size,
unsigned long align,
@@ -132,6 +135,8 @@ extern void *__alloc_bootmem_low_node(pg_data_t *pgdat,
#define alloc_bootmem_low(x) \
__alloc_bootmem_low(x, SMP_CACHE_BYTES, 0)
+#define alloc_bootmem_low_pages_nopanic(x) \
+ __alloc_bootmem_low_nopanic(x, PAGE_SIZE, 0)
#define alloc_bootmem_low_pages(x) \
__alloc_bootmem_low(x, PAGE_SIZE, 0)
#define alloc_bootmem_low_pages_node(pgdat, x) \
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 1324cd7..315d253 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -821,6 +821,14 @@ void * __init __alloc_bootmem_low(unsigned long size,
unsigned long align,
return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
}
+void * __init __alloc_bootmem_low_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal)
+{
+ return ___alloc_bootmem_nopanic(size, align, goal,
+ ARCH_LOW_ADDRESS_LIMIT);
+}
+
/**
* __alloc_bootmem_low_node - allocate low boot memory from a specific node
* @pgdat: node to allocate from
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 03d152a..5e07d36 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -391,6 +391,14 @@ void * __init __alloc_bootmem_low(unsigned long size,
unsigned long align,
return ___alloc_bootmem(size, align, goal, ARCH_LOW_ADDRESS_LIMIT);
}
+void * __init __alloc_bootmem_low_nopanic(unsigned long size,
+ unsigned long align,
+ unsigned long goal)
+{
+ return ___alloc_bootmem_nopanic(size, align, goal,
+ ARCH_LOW_ADDRESS_LIMIT);
+}
+
/**
* __alloc_bootmem_low_node - allocate low boot memory from a specific node
* @pgdat: node to allocate from
--
1.7.10.4
--
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