From: Darrick J. Wong <djwong@xxxxxxxxxx>
The kernel robot complained about this:
>> fs/xfs/xfs_file.c:1266:31: sparse: sparse: incorrect type in return expression (different base types) @@ expected int @@ got restricted vm_fault_t @@
fs/xfs/xfs_file.c:1266:31: sparse: expected int
fs/xfs/xfs_file.c:1266:31: sparse: got restricted vm_fault_t
fs/xfs/xfs_file.c:1314:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted vm_fault_t [usertype] ret @@ got int @@
fs/xfs/xfs_file.c:1314:21: sparse: expected restricted vm_fault_t [usertype] ret
fs/xfs/xfs_file.c:1314:21: sparse: got int
Fix the incorrect return type for these two functions, and make the
!fsdax version return SIGBUS since there is no vm_fault_t that maps to
zero.
Fixes: ea6c49b784f0 ("xfs: support CoW in fsdax mode")
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
fs/xfs/xfs_file.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index c6c80265c0b2..6b328ffaf629 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1261,7 +1261,7 @@ xfs_file_llseek(
}
#ifdef CONFIG_FS_DAX
-static int
+static inline vm_fault_t
xfs_dax_fault(
struct vm_fault *vmf,
enum page_entry_size pe_size,
@@ -1274,14 +1274,14 @@ xfs_dax_fault(
&xfs_read_iomap_ops);
}
#else
-static int
+static inline vm_fault_t
xfs_dax_fault(
struct vm_fault *vmf,
enum page_entry_size pe_size,
bool write_fault,
pfn_t *pfn)
{
- return 0;
+ return VM_FAULT_SIGBUS;
}
#endif
