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SubjectRe: linux-next: build failure after merge of the block tree
On Wed, Jan 16, 2019 at 01:48:24PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the block tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> fs/gfs2/lops.c: In function 'gfs2_end_log_read':
> fs/gfs2/lops.c:394:39: error: macro "bio_for_each_segment_all" requires 4 arguments, but only 3 given
> bio_for_each_segment_all(bvec, bio, i) {
> ^
> fs/gfs2/lops.c:394:2: error: 'bio_for_each_segment_all' undeclared (first use in this function); did you mean 'bio_first_page_all'?
> bio_for_each_segment_all(bvec, bio, i) {
> ^~~~~~~~~~~~~~~~~~~~~~~~
> bio_first_page_all
> fs/gfs2/lops.c:394:2: note: each undeclared identifier is reported only once for each function it appears in
> fs/gfs2/lops.c:394:26: error: expected ';' before '{' token
> bio_for_each_segment_all(bvec, bio, i) {
> ^ ~
> ;
>
> Caused by commit
>
> eb754eb2a953 ("block: allow bio_for_each_segment_all() to iterate over multi-page bvec")
>
> One instance of bio_for_each_segment_all() was missed.
>
> I have applied the following fix patch for today.
>
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Wed, 16 Jan 2019 13:44:02 +1100
> Subject: [PATCH] block: fix up for bio_for_each_segment_all() API change
>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
> fs/gfs2/lops.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
> index ef68bf6232e7..15deefeaafd0 100644
> --- a/fs/gfs2/lops.c
> +++ b/fs/gfs2/lops.c
> @@ -390,8 +390,9 @@ static void gfs2_end_log_read(struct bio *bio)
> struct page *page;
> struct bio_vec *bvec;
> int i;
> + struct bvec_iter_all iter_all;
>
> - bio_for_each_segment_all(bvec, bio, i) {
> + bio_for_each_segment_all(bvec, bio, i, iter_all) {
> page = bvec->bv_page;
> if (bio->bi_status) {
> int err = blk_status_to_errno(bio->bi_status);

Yeah, we need the fix, and I just posted it minutes ago, sorry for
the trouble, :-(

https://marc.info/?l=linux-block&m=154760499205773&w=2

Thanks,
Ming

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