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Groups > linux.kernel > #1322624
| From | Matthew Wilcox <matthew.r.wilcox@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v4 8/8] ext4: Support for PUD-sized transparent huge pages |
| Date | 2016-01-31 13:20 +0100 |
| Message-ID | <qWZ90-38Q-15@gated-at.bofh.it> (permalink) |
| References | <qWYZk-35l-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 71859ed..ec6664a 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; } -- 2.7.0.rc3
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[PATCH v4 8/8] ext4: Support for PUD-sized transparent huge pages Matthew Wilcox <matthew.r.wilcox@intel.com> - 2016-01-31 13:20 +0100
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