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fs: kernfs: Adding new return type vm_fault_t

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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 id -> 1c8f422059 ("mm: change return type to
vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Souptick Joarder 2018-04-21 01:15:24 +05:30 committed by Greg Kroah-Hartman
parent 60cc43fc88
commit 9ee84466b7
1 changed files with 4 additions and 4 deletions
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8
fs/kernfs/file.c
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@ -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;