From 1c71222e5f2393b5ea1a41795c67589eea7e3490 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Thu, 26 Jan 2023 11:37:49 -0800 Subject: mm: replace vma->vm_flags direct modifications with modifier calls Replace direct modifications to vma->vm_flags with calls to modifier functions to be able to track flag changes and to keep vma locking correctness. [akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo] Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com Signed-off-by: Suren Baghdasaryan Acked-by: Michal Hocko Acked-by: Mel Gorman Acked-by: Mike Rapoport (IBM) Acked-by: Sebastian Reichel Reviewed-by: Liam R. Howlett Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Andy Lutomirski Cc: Arjun Roy Cc: Axel Rasmussen Cc: David Hildenbrand Cc: David Howells Cc: Davidlohr Bueso Cc: David Rientjes Cc: Eric Dumazet Cc: Greg Thelen Cc: Hugh Dickins Cc: Ingo Molnar Cc: Jann Horn Cc: Joel Fernandes Cc: Johannes Weiner Cc: Kent Overstreet Cc: Laurent Dufour Cc: Lorenzo Stoakes Cc: Matthew Wilcox Cc: Minchan Kim Cc: Paul E. McKenney Cc: Peter Oskolkov Cc: Peter Xu Cc: Peter Zijlstra Cc: Punit Agrawal Cc: Sebastian Andrzej Siewior Cc: Shakeel Butt Cc: Soheil Hassas Yeganeh Cc: Song Liu Cc: Vlastimil Babka Cc: Will Deacon Signed-off-by: Andrew Morton --- drivers/staging/media/atomisp/pci/hmm/hmm_bo.c | 2 +- drivers/staging/media/deprecated/meye/meye.c | 4 ++-- drivers/staging/media/deprecated/stkwebcam/stk-webcam.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/staging') diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c index 5e53eed8ae95..095cd0ba8c21 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c @@ -1072,7 +1072,7 @@ int hmm_bo_mmap(struct vm_area_struct *vma, struct hmm_buffer_object *bo) vma->vm_private_data = bo; vma->vm_ops = &hmm_bo_vm_ops; - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; + vm_flags_set(vma, VM_IO | VM_DONTEXPAND | VM_DONTDUMP); /* * call hmm_bo_vm_open explicitly. diff --git a/drivers/staging/media/deprecated/meye/meye.c b/drivers/staging/media/deprecated/meye/meye.c index 5d87efd9b95c..746c6ea1c0a7 100644 --- a/drivers/staging/media/deprecated/meye/meye.c +++ b/drivers/staging/media/deprecated/meye/meye.c @@ -1476,8 +1476,8 @@ static int meye_mmap(struct file *file, struct vm_area_struct *vma) } vma->vm_ops = &meye_vm_ops; - vma->vm_flags &= ~VM_IO; /* not I/O memory */ - vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + /* not I/O memory */ + vm_flags_mod(vma, VM_DONTEXPAND | VM_DONTDUMP, VM_IO); vma->vm_private_data = (void *) (offset / gbufsize); meye_vm_open(vma); diff --git a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c index 787edb3d47c2..a1b7ad350a90 100644 --- a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c +++ b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c @@ -779,7 +779,7 @@ static int v4l_stk_mmap(struct file *fp, struct vm_area_struct *vma) ret = remap_vmalloc_range(vma, sbuf->buffer, 0); if (ret) return ret; - vma->vm_flags |= VM_DONTEXPAND; + vm_flags_set(vma, VM_DONTEXPAND); vma->vm_private_data = sbuf; vma->vm_ops = &stk_v4l_vm_ops; sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_MAPPED; -- cgit v1.2.3-58-ga151