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-rw-r--r--mm/memory.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 6dec21b182b0..85e7a87da79f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4485,17 +4485,15 @@ void print_vma_addr(char *prefix, unsigned long ip)
struct vm_area_struct *vma;
/*
- * Do not print if we are in atomic
- * contexts (in exception stacks, etc.):
+ * we might be running from an atomic context so we cannot sleep
*/
- if (preempt_count())
+ if (!down_read_trylock(&mm->mmap_sem))
return;
- down_read(&mm->mmap_sem);
vma = find_vma(mm, ip);
if (vma && vma->vm_file) {
struct file *f = vma->vm_file;
- char *buf = (char *)__get_free_page(GFP_KERNEL);
+ char *buf = (char *)__get_free_page(GFP_NOWAIT);
if (buf) {
char *p;