fs: Push file_update_time() into __block_page_mkwrite()

Tested-by: Kamal Mostafa <kamal@canonical.com>
Tested-by: Peter M. Petrakis <peter.petrakis@canonical.com>
Tested-by: Dann Frazier <dann.frazier@canonical.com>
Tested-by: Massimo Morana <massimo.morana@canonical.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/buffer.c b/fs/buffer.c
index c7062c896d7c20489f41ea838640a5cfa5387ca9..d5ec360e332d40cf94d1f451d9b72c0194d3e5c9 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2318,6 +2318,12 @@ int __block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
        loff_t size;
        int ret;
 
+       /*
+        * 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);
+
        lock_page(page);
        size = i_size_read(inode);
        if ((page->mapping != inode->i_mapping) ||