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Subject[PATCH v2] fs: ext4: Adding new return type vm_fault_t
Use new return type vm_fault_t for fault handler. For now,
this is just documenting that the function returns a
VM_FAULT value rather than an errno. Once all instances are
converted, vm_fault_t will become a distinct type.

commit 1c8f422059ae ("mm: change return type to vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
---
v2: Updated the change log

fs/ext4/file.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index fb6f023..655d1c7 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -277,10 +277,11 @@ static ssize_t ext4_write_checks(struct kiocb *iocb, struct iov_iter *from)
}

#ifdef CONFIG_FS_DAX
-static int ext4_dax_huge_fault(struct vm_fault *vmf,
+static vm_fault_t ext4_dax_huge_fault(struct vm_fault *vmf,
enum page_entry_size pe_size)
{
- int result, error = 0;
+ int error = 0;
+ vm_fault_t result;
int retries = 0;
handle_t *handle = NULL;
struct inode *inode = file_inode(vmf->vma->vm_file);
@@ -335,7 +336,7 @@ static int ext4_dax_huge_fault(struct vm_fault *vmf,
return result;
}

-static int ext4_dax_fault(struct vm_fault *vmf)
+static vm_fault_t ext4_dax_fault(struct vm_fault *vmf)
{
return ext4_dax_huge_fault(vmf, PE_SIZE_PTE);
}
--
1.9.1
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