openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

mm: fix Documentation/vm/hmm.rst Sphinx warnings 

Fix Sphinx warnings in Documentation/vm/hmm.rst by using "::" notation and
inserting a blank line.  Also add a missing ';'.

  Documentation/vm/hmm.rst:292: WARNING: Unexpected indentation.
  Documentation/vm/hmm.rst:300: WARNING: Unexpected indentation.

Link: http://lkml.kernel.org/r/c5995359-7c82-4e47-c7be-b58a4dda0953@infradead.org
Fixes: 023a019a9b ("mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Randy Dunlap 2019-05-31 22:29:57 -07:00 committed by Linus Torvalds
parent 2f4c533499
commit 91173c6e18
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/vm/hmm.rst
View File

@ -288,15 +288,17 @@ For instance if the device flags for device entries are:
WRITE (1 << 62) WRITE (1 << 62)
Now let say that device driver wants to fault with at least read a range then Now let say that device driver wants to fault with at least read a range then
it does set: it does set::
range->default_flags = (1 << 63)
range->default_flags = (1 << 63);
range->pfn_flags_mask = 0; range->pfn_flags_mask = 0;
and calls hmm_range_fault() as described above. This will fill fault all page and calls hmm_range_fault() as described above. This will fill fault all page
in the range with at least read permission. in the range with at least read permission.
Now let say driver wants to do the same except for one page in the range for Now let say driver wants to do the same except for one page in the range for
which its want to have write. Now driver set: which its want to have write. Now driver set::
range->default_flags = (1 << 63); range->default_flags = (1 << 63);
range->pfn_flags_mask = (1 << 62); range->pfn_flags_mask = (1 << 62);
range->pfns[index_of_write] = (1 << 62); range->pfns[index_of_write] = (1 << 62);