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authorDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
committerDavid S. Miller <davem@davemloft.net>2016-03-19 21:05:24 -0400
commitc78a85a8430e35aecd53e190a2f6b999062b1037 (patch)
treefbd69827579db437492fb77b5faa53814114bed3 /fs/dax.c
parent133800d1f0288b9ddfc0d0aded10d9efa82d5b8c (diff)
parentde06dbfa7861c9019eedefc0c356ba86e5098f1b (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/dax.c b/fs/dax.c
index 711172450da6..bbb2ad783770 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1056,6 +1056,7 @@ EXPORT_SYMBOL_GPL(dax_pmd_fault);
int dax_pfn_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct file *file = vma->vm_file;
+ int error;
/*
* We pass NO_SECTOR to dax_radix_entry() because we expect that a
@@ -1065,7 +1066,13 @@ int dax_pfn_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
* saves us from having to make a call to get_block() here to look
* up the sector.
*/
- dax_radix_entry(file->f_mapping, vmf->pgoff, NO_SECTOR, false, true);
+ error = dax_radix_entry(file->f_mapping, vmf->pgoff, NO_SECTOR, false,
+ true);
+
+ if (error == -ENOMEM)
+ return VM_FAULT_OOM;
+ if (error)
+ return VM_FAULT_SIGBUS;
return VM_FAULT_NOPAGE;
}
EXPORT_SYMBOL_GPL(dax_pfn_mkwrite);