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-rw-r--r--fs/xfs/xfs_file.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 1ffb179f35d2..1e2176190c86 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1172,6 +1172,14 @@ __xfs_filemap_fault(
return ret;
}
+static inline bool
+xfs_is_write_fault(
+ struct vm_fault *vmf)
+{
+ return (vmf->flags & FAULT_FLAG_WRITE) &&
+ (vmf->vma->vm_flags & VM_SHARED);
+}
+
static vm_fault_t
xfs_filemap_fault(
struct vm_fault *vmf)
@@ -1179,7 +1187,7 @@ xfs_filemap_fault(
/* DAX can shortcut the normal fault path on write faults! */
return __xfs_filemap_fault(vmf, PE_SIZE_PTE,
IS_DAX(file_inode(vmf->vma->vm_file)) &&
- (vmf->flags & FAULT_FLAG_WRITE));
+ xfs_is_write_fault(vmf));
}
static vm_fault_t
@@ -1192,7 +1200,7 @@ xfs_filemap_huge_fault(
/* DAX can shortcut the normal fault path on write faults! */
return __xfs_filemap_fault(vmf, pe_size,
- (vmf->flags & FAULT_FLAG_WRITE));
+ xfs_is_write_fault(vmf));
}
static vm_fault_t