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authorDavid S. Miller <davem@davemloft.net>2014-05-12 13:19:14 -0400
committerDavid S. Miller <davem@davemloft.net>2014-05-12 13:19:14 -0400
commit5f013c9bc70214dcacd5fbed5a06c217d6ff9c59 (patch)
tree34c3a633000e03bca57d0ce55d8759f86edecc03 /drivers/md/dm-verity.c
parent51ee42efa0829cf9e46f8e1c0ab7a9ab6facf3f2 (diff)
parent1a466ae96e9f749d02a73315a3e66375e61a61dd (diff)
downloadlinux-5f013c9bc70214dcacd5fbed5a06c217d6ff9c59.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/altera/altera_sgdma.c net/netlink/af_netlink.c net/sched/cls_api.c net/sched/sch_api.c The netlink conflict dealt with moving to netlink_capable() and netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations in non-init namespaces. These were simple transformations from netlink_capable to netlink_ns_capable. The Altera driver conflict was simply code removal overlapping some void pointer cast cleanups in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/md/dm-verity.c')
-rw-r--r--drivers/md/dm-verity.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c
index 796007a5e0e1..7a7bab8947ae 100644
--- a/drivers/md/dm-verity.c
+++ b/drivers/md/dm-verity.c
@@ -330,15 +330,17 @@ test_block_hash:
return r;
}
}
-
todo = 1 << v->data_dev_block_bits;
- while (io->iter.bi_size) {
+ do {
u8 *page;
+ unsigned len;
struct bio_vec bv = bio_iter_iovec(bio, io->iter);
page = kmap_atomic(bv.bv_page);
- r = crypto_shash_update(desc, page + bv.bv_offset,
- bv.bv_len);
+ len = bv.bv_len;
+ if (likely(len >= todo))
+ len = todo;
+ r = crypto_shash_update(desc, page + bv.bv_offset, len);
kunmap_atomic(page);
if (r < 0) {
@@ -346,8 +348,9 @@ test_block_hash:
return r;
}
- bio_advance_iter(bio, &io->iter, bv.bv_len);
- }
+ bio_advance_iter(bio, &io->iter, len);
+ todo -= len;
+ } while (todo);
if (!v->version) {
r = crypto_shash_update(desc, v->salt, v->salt_size);