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| author | Matthew Wilcox <willy@linux.intel.com> | 2015-09-08 14:59:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-08 15:35:28 -0700 |
| commit | 3fdd1b479dbc03347e98f904f54133a9cef5521f (patch) | |
| tree | 51a2c593661f4fa8272cc6882778f143a5eead17 /fs | |
| parent | 73a6ec47f68787df1b41869def52915da2f4a6b7 (diff) | |
| download | lwn-3fdd1b479dbc03347e98f904f54133a9cef5521f.tar.gz lwn-3fdd1b479dbc03347e98f904f54133a9cef5521f.zip | |
dax: use linear_page_index()
I was basically open-coding it (thanks to copying code from do_fault()
which probably also needs to be fixed).
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/dax.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -529,7 +529,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address, if ((pmd_addr + PMD_SIZE) > vma->vm_end) return VM_FAULT_FALLBACK; - pgoff = ((pmd_addr - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff; + pgoff = linear_page_index(vma, pmd_addr); size = (i_size_read(inode) + PAGE_SIZE - 1) >> PAGE_SHIFT; if (pgoff >= size) return VM_FAULT_SIGBUS; |