mm: page_mkwrite change prototype to match fault: fix sysfs

Fix warnings and return values in sysfs bin_page_mkwrite(), fixing
fs/sysfs/bin.c: In function `bin_page_mkwrite':
fs/sysfs/bin.c:250: warning: passing argument 2 of `bb->vm_ops->page_mkwrite' from incompatible pointer type
fs/sysfs/bin.c: At top level:
fs/sysfs/bin.c:280: warning: initialization from incompatible pointer type

Expects to have my [PATCH next] sysfs: fix some bin_vm_ops errors

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: "Eric W. Biederman" <ebiederm@aristanetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 07703d3..93e0c02 100644 (file)
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -234,7 +234,7 @@ static int bin_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        return ret;
 }
 
-static int bin_page_mkwrite(struct vm_area_struct *vma, struct page *page)
+static int bin_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
        struct file *file = vma->vm_file;
        struct bin_buffer *bb = file->private_data;
@@ -242,15 +242,15 @@ static int bin_page_mkwrite(struct vm_area_struct *vma, struct page *page)
        int ret;
 
        if (!bb->vm_ops)
-               return -EINVAL;
+               return VM_FAULT_SIGBUS;
 
        if (!bb->vm_ops->page_mkwrite)
                return 0;
 
        if (!sysfs_get_active_two(attr_sd))
-               return -EINVAL;
+               return VM_FAULT_SIGBUS;
 
-       ret = bb->vm_ops->page_mkwrite(vma, page);
+       ret = bb->vm_ops->page_mkwrite(vma, vmf);
 
        sysfs_put_active_two(attr_sd);
        return ret;