aboutsummaryrefslogtreecommitdiffstats
path: root/fs/hugetlbfs
diff options
context:
space:
mode:
authorAndrew Morton <akpm@linux-foundation.org>2018-08-21 21:53:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-22 10:52:44 -0700
commita670468f5e0b5fad4db6e4d195f15915dc2a35c1 (patch)
tree57540edd0f9f24335154139c17695a13b594fe58 /fs/hugetlbfs
parenta3bf6ce366496016990d8578af74673ea04178ff (diff)
mm: zero out the vma in vma_init()
Rather than in vm_area_alloc(). To ensure that the various oddball stack-based vmas are in a good state. Some of the callers were zeroing them out, others were not. Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hugetlbfs')
-rw-r--r--fs/hugetlbfs/inode.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 346a146c7617..32920a10100e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -410,7 +410,6 @@ static void remove_inode_hugepages(struct inode *inode, loff_t lstart,
int i, freed = 0;
bool truncate_op = (lend == LLONG_MAX);
- memset(&pseudo_vma, 0, sizeof(struct vm_area_struct));
vma_init(&pseudo_vma, current->mm);
pseudo_vma.vm_flags = (VM_HUGETLB | VM_MAYSHARE | VM_SHARED);
pagevec_init(&pvec);
@@ -595,7 +594,6 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset,
* allocation routines. If NUMA is configured, use page index
* as input to create an allocation policy.
*/
- memset(&pseudo_vma, 0, sizeof(struct vm_area_struct));
vma_init(&pseudo_vma, mm);
pseudo_vma.vm_flags = (VM_HUGETLB | VM_MAYSHARE | VM_SHARED);
pseudo_vma.vm_file = file;

Privacy Policy