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| author |   Matthew Wilcox <willy@linux.intel.com> | 2015-09-08 14:58:48 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-08 15:35:28 -0700 |
| commit | b96375f74a6d4f39fc6cbdc0bce5175115c7f96f (patch) | |
| tree | cadd8fed9bf3c44ed91e435d0099151767d9b34d /include/linux/mm.h | |
| parent | thp: prepare for DAX huge pages (diff) | |
| download | linux-dev-b96375f74a6d4f39fc6cbdc0bce5175115c7f96f.tar.xz linux-dev-b96375f74a6d4f39fc6cbdc0bce5175115c7f96f.zip | |
mm: add a pmd_fault handler
Allow non-anonymous VMAs to provide huge pages in response to a page fault.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.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 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index dfb7ce05f1e3..e1fbd18b8c4b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -249,6 +249,8 @@ struct vm_operations_struct { void (*close)(struct vm_area_struct * area); int (*mremap)(struct vm_area_struct * area); int (*fault)(struct vm_area_struct *vma, struct vm_fault *vmf); + int (*pmd_fault)(struct vm_area_struct *, unsigned long address, + pmd_t *, unsigned int flags); void (*map_pages)(struct vm_area_struct *vma, struct vm_fault *vmf); /* notification that a previously read-only page is about to become |