Messages in this thread Patch in this message | | | From | Matthew Wilcox <> | Subject | [PATCH v3 8/8] ext4: Support for PUD-sized transparent huge pages | Date | Fri, 8 Jan 2016 14:49:52 -0500 |
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From: Matthew Wilcox <willy@linux.intel.com>
ext4 needs to reserve enough space in the journal to allocate a PUD-sized page.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com> --- fs/ext4/file.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 665fc4b..cec5fa7 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -211,6 +211,10 @@ static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf) 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; } -- 2.6.4
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