]> git.baikalelectronics.ru Git - kernel.git/commit
mm/huge_memory: fix can_split_huge_page assumption of THP size
authorMatthew Wilcox (Oracle) <willy@infradead.org>
Fri, 16 Oct 2020 03:05:43 +0000 (20:05 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 16 Oct 2020 18:11:15 +0000 (11:11 -0700)
commitd5f6b5f9c227f6bea4ad4b437f2796e371457af4
treedaa3e8aa0b4d4c66fc0743d97dde9cdb9a2da71b
parent8826c8f799bd2faa9b9ce27318a8ea404656537a
mm/huge_memory: fix can_split_huge_page assumption of THP size

Ask the page how many subpages it has instead of assuming it's PMD size.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: "Huang, Ying" <ying.huang@intel.com>
Link: https://lkml.kernel.org/r/20200908195539.25896-8-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/huge_memory.c