The patch titled
Subject: ext4: support for PUD-sized transparent huge pages
has been added to the -mm tree. Its filename is
ext4-support-for-pud-sized-transparent-huge-pages.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ext4-support-for-pud-sized-transparent-huge-pages.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ext4-support-for-pud-sized-transparent-huge-pages.patch
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------------------------------------------------------
From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Subject: ext4: support for PUD-sized transparent huge pages
ext4 needs to reserve enough space in the journal to allocate a PUD-sized
page.
Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ext4/file.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN fs/ext4/file.c~ext4-support-for-pud-sized-transparent-huge-pages fs/ext4/file.c
--- a/fs/ext4/file.c~ext4-support-for-pud-sized-transparent-huge-pages
+++ a/fs/ext4/file.c
@@ -211,6 +211,10 @@ static int ext4_dax_fault(struct vm_area
nblocks = ext4_chunk_trans_blocks(inode,
PMD_SIZE / PAGE_SIZE);
break;
+ case FAULT_FLAG_SIZE_PUD:
+ nblocks = ext4_chunk_trans_blocks(inode,
+ PUD_SIZE / PAGE_SIZE);
+ break;
default:
return VM_FAULT_FALLBACK;
}
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxxxx are
radix-tree-fix-race-in-gang-lookup.patch
hwspinlock-fix-race-between-radix-tree-insertion-and-lookup.patch
mm-convert-an-open-coded-vm_bug_on_vma.patch
mmfsdax-change-pmd_fault-to-huge_fault.patch
mm-add-support-for-pud-sized-transparent-hugepages.patch
procfs-add-support-for-puds-to-smaps-clear_refs-and-pagemap.patch
x86-add-support-for-pud-sized-transparent-hugepages.patch
dax-support-for-transparent-pud-pages.patch
ext4-support-for-pud-sized-transparent-huge-pages.patch
radix-tree-add-an-explicit-include-of-bitopsh.patch
radix-tree-test-harness.patch
radix_tree-tag-all-internal-tree-nodes-as-indirect-pointers.patch
radix_tree-loop-based-on-shift-count-not-height.patch
radix_tree-add-support-for-multi-order-entries.patch
radix_tree-add-radix_tree_dump.patch
btrfs-use-radix_tree_iter_retry.patch
mm-use-radix_tree_iter_retry.patch
radix-treeshmem-introduce-radix_tree_iter_next.patch
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