Revert "mm: introduce vma_set_file function v4"
The kernel test robot is not happy with that.
This reverts commit 2b5b95b1ff3d70a95013a45e3b5b90f1daf42348.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/394773/
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index e63684d..282bd8b 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1183,7 +1183,8 @@ int dma_buf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma,
return -EINVAL;
/* readjust the vma */
- vma_set_file(vma, dmabuf->file);
+ fput(vma->vm_file);
+ vma->vm_file = get_file(dmabuf->file);
vma->vm_pgoff = pgoff;
return dmabuf->ops->mmap(dmabuf, vma);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 4132acf..67d9a2b 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -145,8 +145,10 @@ static int etnaviv_gem_mmap_obj(struct etnaviv_gem_object *etnaviv_obj,
* address_space (so unmap_mapping_range does what we want,
* in particular in the case of mmap'd dmabufs)
*/
+ fput(vma->vm_file);
+ get_file(etnaviv_obj->base.filp);
vma->vm_pgoff = 0;
- vma_set_file(vma, etnaviv_obj->base.filp);
+ vma->vm_file = etnaviv_obj->base.filp;
vma->vm_page_prot = vm_page_prot;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index 04e9c04..0dd477e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
@@ -114,7 +114,8 @@ static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *
if (ret)
return ret;
- vma_set_file(vma, obj->base.filp);
+ fput(vma->vm_file);
+ vma->vm_file = get_file(obj->base.filp);
return 0;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index ec28a6c..3d69e51f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -893,9 +893,8 @@ int i915_gem_mmap(struct file *filp, struct vm_area_struct *vma)
* requires avoiding extraneous references to their filp, hence why
* we prefer to use an anonymous file for their mmaps.
*/
- vma_set_file(vma, anon);
- /* Drop the initial creation reference, the vma is now holding one. */
- fput(anon);
+ fput(vma->vm_file);
+ vma->vm_file = anon;
switch (mmo->mmap_type) {
case I915_MMAP_TYPE_WC:
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 311721c..2e1bce7 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -212,8 +212,10 @@ int msm_gem_mmap_obj(struct drm_gem_object *obj,
* address_space (so unmap_mapping_range does what we want,
* in particular in the case of mmap'd dmabufs)
*/
+ fput(vma->vm_file);
+ get_file(obj->filp);
vma->vm_pgoff = 0;
- vma_set_file(vma, obj->filp);
+ vma->vm_file = obj->filp;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
}
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index f063f5a..d8e09792 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -564,8 +564,9 @@ int omap_gem_mmap_obj(struct drm_gem_object *obj,
* address_space (so unmap_mapping_range does what we want,
* in particular in the case of mmap'd dmabufs)
*/
+ fput(vma->vm_file);
vma->vm_pgoff = 0;
- vma_set_file(vma, obj->filp);
+ vma->vm_file = get_file(obj->filp);
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
}
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index ea0eeca..fa54a6d 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -397,7 +397,8 @@ static int vgem_prime_mmap(struct drm_gem_object *obj,
if (ret)
return ret;
- vma_set_file(vma, obj->filp);
+ fput(vma->vm_file);
+ vma->vm_file = get_file(obj->filp);
vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 4789d36..10b4be1 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -450,9 +450,9 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
vma_set_anonymous(vma);
}
- vma_set_file(vma, asma->file);
- /* XXX: merge this with the get_file() above if possible */
- fput(asma->file);
+ if (vma->vm_file)
+ fput(vma->vm_file);
+ vma->vm_file = asma->file;
out:
mutex_unlock(&ashmem_mutex);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2b7ac36..ef360fe 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2719,8 +2719,6 @@ static inline void vma_set_page_prot(struct vm_area_struct *vma)
}
#endif
-void vma_set_file(struct vm_area_struct *vma, struct file *file);
-
#ifdef CONFIG_NUMA_BALANCING
unsigned long change_prot_numa(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
diff --git a/mm/mmap.c b/mm/mmap.c
index b0093cc..30a4e84 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -137,18 +137,6 @@ void vma_set_page_prot(struct vm_area_struct *vma)
}
/*
- * Change backing file, only valid to use during initial VMA setup.
- */
-void vma_set_file(struct vm_area_struct *vma, struct file *file)
-{
- /* Changing an anonymous vma with this is illegal */
- get_file(file);
- swap(vma->vm_file, file);
- fput(file);
-}
-EXPORT_SYMBOL(vma_set_file);
-
-/*
* Requires inode->i_mapping->i_mmap_rwsem
*/
static void __remove_shared_vm_struct(struct vm_area_struct *vma,
