Commit 3e4e28c5 authored by Michel Lespinasse's avatar Michel Lespinasse Committed by Linus Torvalds
Browse files

mmap locking API: convert mmap_sem API comments 



Convert comments that reference old mmap_sem APIs to reference
corresponding new mmap locking APIs instead.

Signed-off-by: default avatarMichel Lespinasse <walken@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Reviewed-by: default avatarDavidlohr Bueso <dbueso@suse.de>
Reviewed-by: default avatarDaniel Jordan <daniel.m.jordan@oracle.com>
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: Laurent Dufour <ldufour@linux.ibm.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/20200520052908.204642-12-walken@google.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent da1c55f1

Documentation/vm/hmm.rst

+3 −3
Original line number Diff line number Diff line
@@ -191,15 +191,15 @@ The usage pattern is:: 


 again:

      range.notifier_seq = mmu_interval_read_begin(&interval_sub);

      down_read(&mm->mmap_sem);

      mmap_read_lock(mm);

      ret = hmm_range_fault(&range);

      if (ret) {

          up_read(&mm->mmap_sem);

          mmap_read_unlock(mm);

          if (ret == -EBUSY)

                 goto again;

          return ret;

      }

      up_read(&mm->mmap_sem);

      mmap_read_unlock(mm);



      take_lock(driver->update);

      if (mmu_interval_read_retry(&ni, range.notifier_seq) {

arch/alpha/mm/fault.c

+1 −1
Original line number Diff line number Diff line
@@ -171,7 +171,7 @@ retry: 
		if (fault & VM_FAULT_RETRY) {

			flags |= FAULT_FLAG_TRIED;



			 /* No need to up_read(&mm->mmap_sem) as we would

			 /* No need to mmap_read_unlock(mm) as we would

			 * have already released it in __lock_page_or_retry

			 * in mm/filemap.c.

			 */

arch/ia64/mm/fault.c

+1 −1
Original line number Diff line number Diff line
@@ -173,7 +173,7 @@ retry: 
		if (fault & VM_FAULT_RETRY) {

			flags |= FAULT_FLAG_TRIED;



			 /* No need to up_read(&mm->mmap_sem) as we would

			 /* No need to mmap_read_unlock(mm) as we would

			 * have already released it in __lock_page_or_retry

			 * in mm/filemap.c.

			 */

arch/m68k/mm/fault.c

+1 −1
Original line number Diff line number Diff line
@@ -165,7 +165,7 @@ good_area: 
			flags |= FAULT_FLAG_TRIED;



			/*

			 * No need to up_read(&mm->mmap_sem) as we would

			 * No need to mmap_read_unlock(mm) as we would

			 * have already released it in __lock_page_or_retry

			 * in mm/filemap.c.

			 */

arch/microblaze/mm/fault.c

+1 −1
Original line number Diff line number Diff line
@@ -238,7 +238,7 @@ good_area: 
			flags |= FAULT_FLAG_TRIED;



			/*

			 * No need to up_read(&mm->mmap_sem) as we would

			 * No need to mmap_read_unlock(mm) as we would

			 * have already released it in __lock_page_or_retry

			 * in mm/filemap.c.

			 */

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