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SubjectRe: [PATCH v2 3/3] ext4: use jbd2_inode dirty range scoping
On Mon, Jun 24, 2019 at 02:54:49AM +0800, kbuild test robot wrote:
> Hi Ross,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v5.2-rc6 next-20190621]
> [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/Ross-Zwisler/mm-add-filemap_fdatawait_range_keep_errors/20190623-181603
> config: x86_64-rhel-7.6 (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
> >> ERROR: "jbd2_journal_inode_ranged_wait" [fs/ext4/ext4.ko] undefined!
> >> ERROR: "jbd2_journal_inode_ranged_write" [fs/ext4/ext4.ko] undefined!

Yep, this is caused by the lack of EXPORT_SYMBOL() calls for these two new
jbd2 functions. Ted also pointed this out and fixed this up when he was
committing:

https://patchwork.kernel.org/patch/11007139/#22717091

Thank you for the report!

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