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Subjectlinux-next: build failure after merge of the block tree
Hi Jens,

After merging the block tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/block/drbd/drbd_bitmap.c: In function '__bm_find_next':
drivers/block/drbd/drbd_bitmap.c:1187: error: implicit declaration of function 'generic_find_next_zero_le_bit'
drivers/block/drbd/drbd_bitmap.c:1190: error: implicit declaration of function 'generic_find_next_le_bit'
drivers/block/drbd/drbd_bitmap.c: In function '__bm_change_bits_to':
drivers/block/drbd/drbd_bitmap.c:1290: error: implicit declaration of function 'generic___test_and_set_le_bit'
drivers/block/drbd/drbd_bitmap.c:1292: error: implicit declaration of function 'generic___test_and_clear_le_bit'
drivers/block/drbd/drbd_bitmap.c: In function 'drbd_bm_test_bit':
drivers/block/drbd/drbd_bitmap.c:1441: error: implicit declaration of function 'generic_test_le_bit'

Caused by commit 95a0f10cddbf ("drbd: store in-core bitmap little endian,
regardless of architecture") interacting with commit c4945b9ed472
("asm-generic: rename generic little-endian bitops functions") from
Linus' tree.

I applied the following merge fix patch for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 25 Mar 2011 14:27:57 +1100
Subject: [PATCH] drbd: update for bitop api changes

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
drivers/block/drbd/drbd_bitmap.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index f0ae63d..eb925fa 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1184,10 +1184,10 @@ static unsigned long __bm_find_next(struct drbd_conf *mdev, unsigned long bm_fo,
p_addr = __bm_map_pidx(b, bm_bit_to_page_idx(b, bm_fo), km);

if (find_zero_bit)
- i = generic_find_next_zero_le_bit(p_addr,
+ i = find_next_zero_bit_le(p_addr,
PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);
else
- i = generic_find_next_le_bit(p_addr,
+ i = find_next_bit_le(p_addr,
PAGE_SIZE*8, bm_fo & BITS_PER_PAGE_MASK);

__bm_unmap(p_addr, km);
@@ -1287,9 +1287,9 @@ static int __bm_change_bits_to(struct drbd_conf *mdev, const unsigned long s,
last_page_nr = page_nr;
}
if (val)
- c += (0 == generic___test_and_set_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr));
+ c += (0 == __test_and_set_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
else
- c -= (0 != generic___test_and_clear_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr));
+ c -= (0 != __test_and_clear_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr));
}
if (p_addr)
__bm_unmap(p_addr, km);
@@ -1438,7 +1438,7 @@ int drbd_bm_test_bit(struct drbd_conf *mdev, const unsigned long bitnr)
bm_print_lock_info(mdev);
if (bitnr < b->bm_bits) {
p_addr = bm_map_pidx(b, bm_bit_to_page_idx(b, bitnr));
- i = generic_test_le_bit(bitnr & BITS_PER_PAGE_MASK, p_addr) ? 1 : 0;
+ i = test_bit_le(bitnr & BITS_PER_PAGE_MASK, p_addr) ? 1 : 0;
bm_unmap(p_addr);
} else if (bitnr == b->bm_bits) {
i = -1;
@@ -1482,7 +1482,7 @@ int drbd_bm_count_bits(struct drbd_conf *mdev, const unsigned long s, const unsi
ERR_IF (bitnr >= b->bm_bits) {
dev_err(DEV, "bitnr=%lu bm_bits=%lu\n", bitnr, b->bm_bits);
} else {
- c += (0 != generic_test_le_bit(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr));
+ c += (0 != test_bit_le(bitnr - (page_nr << (PAGE_SHIFT+3)), p_addr));
}
}
if (p_addr)
--
1.7.4.1

--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au


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