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authorChris Mason <chris.mason@oracle.com>2008-04-03 16:29:03 -0400
committerChris Mason <chris.mason@oracle.com>2008-09-25 11:04:01 -0400
commit8790d502e4401a4a3a4175b83a3a47e8d595c771 (patch)
tree7e01c053d6a99c3c2a6fb71a7338b083e953f0b3 /fs/btrfs/inode.c
parent0ef8b2428a339e83fe225e82ef8bd0ea3f62b180 (diff)
downloadlinux-next-8790d502e4401a4a3a4175b83a3a47e8d595c771.tar.gz
Btrfs: Add support for mirroring across drives
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0fa7cf227f1a..a8ae68c6fbb8 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -306,6 +306,7 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
u64 physical;
u64 length = 0;
u64 map_length;
+ int total_devs;
struct bio_vec *bvec;
int i;
int ret;
@@ -315,7 +316,8 @@ int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
}
map_tree = &root->fs_info->mapping_tree;
map_length = length;
- ret = btrfs_map_block(map_tree, logical, &physical, &map_length, &dev);
+ ret = btrfs_map_block(map_tree, READ, 0, logical, &physical,
+ &map_length, &dev, &total_devs);
if (map_length < length + size) {
return 1;
}