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authorAndrew Morton <akpm@linux-foundation.org>2022-10-16 16:06:53 -0700
committerAndrew Morton <akpm@linux-foundation.org>2022-10-16 16:06:53 -0700
commit280330fac48280e16454cfa46c368af4812ad79c (patch)
tree18b9ed796c57e3929e50b9b03f2c6501740b03d6 /drivers/android/binder_alloc.c
parentd0d51a97063db4704a5ef6bc978dddab1636a306 (diff)
parent4fe89d07dcc2804c8b562f6c7896a45643d34b2f (diff)
Merge branch 'master' into mm-hotfixes-stable
Diffstat (limited to 'drivers/android/binder_alloc.c')
-rw-r--r--drivers/android/binder_alloc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 51f4e1c5cd01..9b1778c00610 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -322,7 +322,6 @@ static inline void binder_alloc_set_vma(struct binder_alloc *alloc,
*/
if (vma) {
vm_start = vma->vm_start;
- alloc->vma_vm_mm = vma->vm_mm;
mmap_assert_write_locked(alloc->vma_vm_mm);
} else {
mmap_assert_locked(alloc->vma_vm_mm);
@@ -795,7 +794,6 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
binder_insert_free_buffer(alloc, buffer);
alloc->free_async_space = alloc->buffer_size / 2;
binder_alloc_set_vma(alloc, vma);
- mmgrab(alloc->vma_vm_mm);
return 0;
@@ -1091,6 +1089,8 @@ static struct shrinker binder_shrinker = {
void binder_alloc_init(struct binder_alloc *alloc)
{
alloc->pid = current->group_leader->pid;
+ alloc->vma_vm_mm = current->mm;
+ mmgrab(alloc->vma_vm_mm);
mutex_init(&alloc->mutex);
INIT_LIST_HEAD(&alloc->buffers);
}