tree fd3289689d4a705e7ed5b9d36c5dab1f620e9f73
parent 3f4b815a439adfb8f238335612c4b28bc10084d8
author Hui Su <sh_def@163.com> 1608001915 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1608063224 -0800

mm/hugetlb.c: just use put_page_testzero() instead of page_count()

We test the page reference count is zero or not here, it can be a bug here
if page refercence count is not zero.  So we can just use
put_page_testzero() instead of page_count().

Link: https://lkml.kernel.org/r/20201007170949.GA6416@rlk
Signed-off-by: Hui Su <sh_def@163.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>