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Subject[PATCH] fs: proc: Adding new typedef vm_fault_t
Use new return type vm_fault_t for fault handler
in struct vm_operations_struct. 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.

see commit 1c8f422059ae ("mm: change return type to
vm_fault_t") for reference.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
---
fs/proc/vmcore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index a45f0af..7243e94 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -265,7 +265,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
* On s390 the fault handler is used for memory regions that can't be mapped
* directly with remap_pfn_range().
*/
-static int mmap_vmcore_fault(struct vm_fault *vmf)
+static vm_fault_t mmap_vmcore_fault(struct vm_fault *vmf)
{
#ifdef CONFIG_S390
struct address_space *mapping = vmf->vma->vm_file->f_mapping;
--
1.9.1
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