userfaultfd: use mmgrab instead of open-coded increment of mm_count
authorMike Rapoport <[email protected]>
Thu, 16 Nov 2017 01:36:56 +0000 (17:36 -0800)
committerLinus Torvalds <[email protected]>
Thu, 16 Nov 2017 02:21:05 +0000 (18:21 -0800)
commit00bb31fa44acf9591018810ff9d5ab375779c1cc
tree2c66edaefa2b2eab70cb7c440c55b547e36749ff
parent85ccc8fa81af74c3c9133cf243fb75f65d02a59a
userfaultfd: use mmgrab instead of open-coded increment of mm_count

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: "Dr . David Alan Gilbert" <[email protected]>
Cc: Mike Kravetz <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
fs/userfaultfd.c