Hi all, After merging the final tree, today's linux-next build (powerpc allyesconfig) failed like this:
drivers/built-in.o: In function `bio_alloc_pages':
(.opd+0x2364a8): multiple definition of `bio_alloc_pages'
fs/built-in.o:(.opd+0x7188): first defined here
Caused by an interaction between commits a07876064a0b ("block: Add
bio_alloc_pages()") and commit cafe56359144 ("bcache: A block layer
cache") from the block tree.
I have applied the following fix patch (this should have happened in
merge commit 12f45f28441e "Merge branch 'for-3.10/drivers' into
for-next"):
From: Stephen Rothwell <s...@canb.auug.org.au>
Date: Tue, 26 Mar 2013 17:26:45 +1100
Subject: [PATCH] block: remove the extra copy of bio_alloc_pages
Signed-off-by: Stephen Rothwell <s...@canb.auug.org.au>
---
drivers/md/bcache/util.c | 18 ------------------
drivers/md/bcache/util.h | 2 --
2 files changed, 20 deletions(-)
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index dcec2e4..671a55d 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -237,24 +237,6 @@ start: bv->bv_len = min_t(size_t,
PAGE_SIZE - bv->bv_offset,
}
EXPORT_SYMBOL_GPL(bio_map);
-int bio_alloc_pages(struct bio *bio, gfp_t gfp)
-{
- int i;
- struct bio_vec *bv;
-
- bio_for_each_segment(bv, bio, i) {
- bv->bv_page = alloc_page(gfp);
- if (!bv->bv_page) {
- while (bv-- != bio->bi_io_vec + bio->bi_idx)
- __free_page(bv->bv_page);
- return -ENOMEM;
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(bio_alloc_pages);
-
/*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group (Any
* use permitted, subject to terms of PostgreSQL license; see.)
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index 56705fd..499d746 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -570,8 +570,6 @@ static inline unsigned fract_exp_two(unsigned x, unsigned
fract_bits)
void bio_map(struct bio *bio, void *base);
-int bio_alloc_pages(struct bio *bio, gfp_t gfp);
-
static inline sector_t bdev_sectors(struct block_device *bdev)
{
return bdev->bd_inode->i_size >> 9;
--
1.8.1
--
Cheers,
Stephen Rothwell s...@canb.auug.org.au
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