linux-kernel - Re: [PATCH v2 4/6] mm/fs: add a sync_mode param for clear_page_dirty_for

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Date:   Sun, 1 Jul 2018 21:40:22 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     kbuild test robot <lkp@...el.com>, <john.hubbard@...il.com>
CC:     <kbuild-all@...org>, Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...nel.org>,
        Christopher Lameter <cl@...ux.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Dan Williams <dan.j.williams@...el.com>,
        Jan Kara <jack@...e.cz>, <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH v2 4/6] mm/fs: add a sync_mode param for
 clear_page_dirty_for_io()

On 07/01/2018 07:47 PM, kbuild test robot wrote:
> Hi John,
> 
> Thank you for the patch! Yet something to improve:
> 
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.18-rc3]
> [cannot apply to next-20180629]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/john-hubbard-gmail-com/mm-fs-gup-don-t-unmap-or-drop-filesystem-buffers/20180702-090125
> config: i386-randconfig-x075-201826 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> All errors (new ones prefixed by >>):
> 
>    fs/f2fs/dir.c: In function 'f2fs_delete_entry':
>>> fs/f2fs/dir.c:734:33: error: 'WB_SYNC_ALL' undeclared (first use in this function); did you mean 'FS_SYNC_FL'?
>       clear_page_dirty_for_io(page, WB_SYNC_ALL);
>                                     ^~~~~~~~~~~
>                                     FS_SYNC_FL

Fixed locally, via:

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 258f9dc117f4..ca20c1262582 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -16,6 +16,7 @@
 #include "acl.h"
 #include "xattr.h"
 #include <trace/events/f2fs.h>
+#include <linux/writeback.h>
 
 static unsigned long dir_blocks(struct inode *inode)
 {



thanks,
-- 
John Hubbard
NVIDIA