On Mon, Oct 12, 2020 at 10:52:03AM +0200, Christian König wrote:
Add the new vma_set_file() function to allow changing vma->vm_file with the necessary refcount dance.
v2: add more users of this. v3: add missing EXPORT_SYMBOL, rebase on mmap cleanup, add comments why we drop the reference on two occasions. v4: make it clear that changing an anonymous vma is illegal.
Signed-off-by: Christian König christian.koenig@amd.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch (v2)
drivers/dma-buf/dma-buf.c | 3 +-- drivers/gpu/drm/etnaviv/etnaviv_gem.c | 4 +--- drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 3 +-- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 5 +++-- drivers/gpu/drm/msm/msm_gem.c | 4 +--- drivers/gpu/drm/omapdrm/omap_gem.c | 3 +-- drivers/gpu/drm/vgem/vgem_drv.c | 3 +-- drivers/staging/android/ashmem.c | 6 +++--- include/linux/mm.h | 2 ++ mm/mmap.c | 12 ++++++++++++ 10 files changed, 26 insertions(+), 19 deletions(-)
Reviewed-by: Jason Gunthorpe jgg@nvidia.com
Jason