vfs: remove unused wrapper block_page_mkwrite()
The function currently called "__block_page_mkwrite()" used to be called
"block_page_mkwrite()" until a wrapper for this function was added by:
commit 24da4fab5a61 ("vfs: Create __block_page_mkwrite() helper passing
error values back")
This wrapper, the current "block_page_mkwrite()", is currently unused.
__block_page_mkwrite() is used directly by ext4, nilfs2 and xfs.
Remove the unused wrapper, rename __block_page_mkwrite() back to
block_page_mkwrite() and update the comment above block_page_mkwrite().
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.com>
Cc: Jan Kara <jack@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/buffer.c b/fs/buffer.c
index 51aff02..4f4cd95 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2420,9 +2420,9 @@
* unlock the page.
*
* Direct callers of this function should protect against filesystem freezing
- * using sb_start_write() - sb_end_write() functions.
+ * using sb_start_pagefault() - sb_end_pagefault() functions.
*/
-int __block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
+int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
get_block_t get_block)
{
struct page *page = vmf->page;
@@ -2459,26 +2459,6 @@
unlock_page(page);
return ret;
}
-EXPORT_SYMBOL(__block_page_mkwrite);
-
-int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
- get_block_t get_block)
-{
- int ret;
- struct super_block *sb = file_inode(vma->vm_file)->i_sb;
-
- sb_start_pagefault(sb);
-
- /*
- * Update file times before taking page lock. We may end up failing the
- * fault so this update may be superfluous but who really cares...
- */
- file_update_time(vma->vm_file);
-
- ret = __block_page_mkwrite(vma, vmf, get_block);
- sb_end_pagefault(sb);
- return block_page_mkwrite_return(ret);
-}
EXPORT_SYMBOL(block_page_mkwrite);
/*