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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2015-09-09 00:58:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-09 01:35:28 +0300
commite1b9996b85ba3ff143ded04523cd015762d20f03 (patch)
treef08ab6192de6b46877b848f4a3d080cb13365621 /mm/huge_memory.c
parentce75799b83aaf3fd592e21531a9532bed157c6b5 (diff)
downloadlinux-e1b9996b85ba3ff143ded04523cd015762d20f03.tar.xz
thp: vma_adjust_trans_huge(): adjust file-backed VMA too
This series of patches adds support for using PMD page table entries to map DAX files. We expect NV-DIMMs to start showing up that are many gigabytes in size and the memory consumption of 4kB PTEs will be astronomical. The patch series leverages much of the Transparant Huge Pages infrastructure, going so far as to borrow one of Kirill's patches from his THP page cache series. This patch (of 10): Since we're going to have huge pages in page cache, we need to call adjust file-backed VMA, which potentially can contain huge pages. For now we call it for all VMAs. Probably later we will need to introduce a flag to indicate that the VMA has huge pages. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Acked-by: Hillf Danton <dhillf@gmail.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
-rw-r--r--mm/huge_memory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 279a818a39b1..4d5fcb630d32 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2991,7 +2991,7 @@ static void split_huge_page_address(struct mm_struct *mm,
split_huge_page_pmd_mm(mm, address, pmd);
}
-void __vma_adjust_trans_huge(struct vm_area_struct *vma,
+void vma_adjust_trans_huge(struct vm_area_struct *vma,
unsigned long start,
unsigned long end,
long adjust_next)