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mmap locking API: use coccinelle to convert mmap_sem rwsem call sites

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This change converts the existing mmap_sem rwsem calls to use the new mmap
locking API instead.

The change is generated using coccinelle with the following rule:

// spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir .

@@
expression mm;
@@
(
-init_rwsem
+mmap_init_lock
|
-down_write
+mmap_write_lock
|
-down_write_killable
+mmap_write_lock_killable
|
-down_write_trylock
+mmap_write_trylock
|
-up_write
+mmap_write_unlock
|
-downgrade_write
+mmap_write_downgrade
|
-down_read
+mmap_read_lock
|
-down_read_killable
+mmap_read_lock_killable
|
-down_read_trylock
+mmap_read_trylock
|
-up_read
+mmap_read_unlock
)
-(&mm->mmap_sem)
+(mm)

Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Link: http://lkml.kernel.org/r/20200520052908.204642-5-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michel Lespinasse
2020-06-08 21:33:25 -07:00
committed by Linus Torvalds
parent 0adf65f53a
commit d8ed45c5dc
148 changed files with 645 additions and 645 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
View File

@@ -1393,9 +1393,9 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
* concurrently and the queues are actually stopped
*/
if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm)) {
down_write(&current->mm->mmap_sem);
mmap_write_lock(current->mm);
is_invalid_userptr = atomic_read(&mem->invalid);
up_write(&current->mm->mmap_sem);
mmap_write_unlock(current->mm);
}
mutex_lock(&mem->lock);

10
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@@ -910,7 +910,7 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages)
goto out_free_ranges;
}
down_read(&mm->mmap_sem);
mmap_read_lock(mm);
vma = find_vma(mm, start);
if (unlikely(!vma || start < vma->vm_start)) {
r = -EFAULT;
@@ -921,15 +921,15 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages)
r = -EPERM;
goto out_unlock;
}
up_read(&mm->mmap_sem);
mmap_read_unlock(mm);
timeout = jiffies + msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT);
retry:
range->notifier_seq = mmu_interval_read_begin(&bo->notifier);
down_read(&mm->mmap_sem);
mmap_read_lock(mm);
r = hmm_range_fault(range);
up_read(&mm->mmap_sem);
mmap_read_unlock(mm);
if (unlikely(r)) {
/*
* FIXME: This timeout should encompass the retry from
@@ -954,7 +954,7 @@ retry:
return 0;
out_unlock:
up_read(&mm->mmap_sem);
mmap_read_unlock(mm);
out_free_pfns:
kvfree(range->hmm_pfns);
out_free_ranges: