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Subject[PATCH v2] fs: kernfs: Adding new return type vm_fault_t
Use new return type vm_fault_t for page_mkwrite
and 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.

Reference commit id->
1c8f422059ae5da07db7406ab916203f9417e396

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

fs/kernfs/file.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index fd5ce88..2015d8c 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -348,11 +348,11 @@ static void kernfs_vma_open(struct vm_area_struct *vma)
kernfs_put_active(of->kn);
}

-static int kernfs_vma_fault(struct vm_fault *vmf)
+static vm_fault_t kernfs_vma_fault(struct vm_fault *vmf)
{
struct file *file = vmf->vma->vm_file;
struct kernfs_open_file *of = kernfs_of(file);
- int ret;
+ vm_fault_t ret;

if (!of->vm_ops)
return VM_FAULT_SIGBUS;
@@ -368,11 +368,11 @@ static int kernfs_vma_fault(struct vm_fault *vmf)
return ret;
}

-static int kernfs_vma_page_mkwrite(struct vm_fault *vmf)
+static vm_fault_t kernfs_vma_page_mkwrite(struct vm_fault *vmf)
{
struct file *file = vmf->vma->vm_file;
struct kernfs_open_file *of = kernfs_of(file);
- int ret;
+ vm_fault_t ret;

if (!of->vm_ops)
return VM_FAULT_SIGBUS;
--
1.9.1
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