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Subjectlinux-next: build failure after merge of the block tree
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);
--
2.20.1
--
Cheers,
Stephen Rothwell
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