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authorLinus Torvalds <torvalds@linux-foundation.org>2018-07-21 15:24:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-07-21 15:24:03 -0700
commit490fc053865c9cc40f1085ef8a5504f5341f79d2 (patch)
tree95f2e6e189cdae1a5e638b7ea4e39502605eaaa8 /mm/nommu.c
parent95faf6992df468f617edb788da8c21c6eed0dfa7 (diff)
downloadlinux-490fc053865c9cc40f1085ef8a5504f5341f79d2.tar.bz2
mm: make vm_area_alloc() initialize core fields
Like vm_area_dup(), it initializes the anon_vma_chain head, and the basic mm pointer. The rest of the fields end up being different for different users, although the plan is to also initialize the 'vm_ops' field to a dummy entry. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/nommu.c')
-rw-r--r--mm/nommu.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index c2560e9cc803..1d22fdbf7d7c 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1204,7 +1204,7 @@ unsigned long do_mmap(struct file *file,
if (!region)
goto error_getting_region;
- vma = vm_area_alloc();
+ vma = vm_area_alloc(current->mm);
if (!vma)
goto error_getting_vma;
@@ -1212,7 +1212,6 @@ unsigned long do_mmap(struct file *file,
region->vm_flags = vm_flags;
region->vm_pgoff = pgoff;
- INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_flags = vm_flags;
vma->vm_pgoff = pgoff;