On Thu, May 28 2015 at 12:46pm -0400,
kbuild test robot <fengguang.wu@xxxxxxxxx> wrote:
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git dm-4.1-for-ejt
> head: b8112c1e5d7658f3f6a300f6efeb5fae6ec135eb
> commit: b8112c1e5d7658f3f6a300f6efeb5fae6ec135eb [33/33] dm thin: range discard support
> config: x86_64-rhel (attached as .config)
> reproduce:
> git checkout b8112c1e5d7658f3f6a300f6efeb5fae6ec135eb
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All error/warnings:
>
> drivers/md/dm-thin.c: In function '__bio_inc_remaining':
> >> drivers/md/dm-thin.c:1543:25: error: 'BIO_CHAIN' undeclared (first use in this function)
> bio->bi_flags |= (1 << BIO_CHAIN);
> ^
> drivers/md/dm-thin.c:1543:25: note: each undeclared identifier is reported only once for each function it appears in
> >> drivers/md/dm-thin.c:1545:17: error: 'struct bio' has no member named '__bi_remaining'
> atomic_inc(&bio->__bi_remaining);
> ^
>
> vim +/BIO_CHAIN +1543 drivers/md/dm-thin.c
>
> 1537 * FIXME: DM local hack to defer parent bios's end_io until we
> 1538 * _know_ all chained sub range discard bios have completed.
> 1539 * Will go away once late bio splitting lands upstream!
> 1540 */
> 1541 static inline void __bio_inc_remaining(struct bio *bio)
> 1542 {
> > 1543 bio->bi_flags |= (1 << BIO_CHAIN);
> 1544 smp_mb__before_atomic();
> > 1545 atomic_inc(&bio->__bi_remaining);
> 1546 }
> 1547
> 1548 static void break_up_discard_bio(struct thin_c *tc, dm_block_t begin, dm_block_t end,
I fixed this up.. but this is a temporary branch for Joe... please move
along, nothing to see here :)
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