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| author | Dave Airlie <airlied@redhat.com> | 2011-01-05 08:31:08 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-01-05 08:31:08 +1000 |
| commit | 4f125010d2d02c481a0fdf5aee23a9f937bc5de1 (patch) | |
| tree | dcdcd2ba1d0bb980b57ced9a1b2b5b17c84c8f57 /fs/btrfs/disk-io.c | |
| parent | 204663c48711ddceee09df46269cd34d49d1f7be (diff) | |
| parent | 989d873fc5b6a96695b97738dea8d9f02a60f8ab (diff) | |
Merge branch 'master' of /home/airlied/kernel/linux-2.6 into drm-core-next
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index c547cca26a26..51d2e4de34eb 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -696,6 +696,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, __btree_submit_bio_done); } +#ifdef CONFIG_MIGRATION static int btree_migratepage(struct address_space *mapping, struct page *newpage, struct page *page) { @@ -712,12 +713,9 @@ static int btree_migratepage(struct address_space *mapping, if (page_has_private(page) && !try_to_release_page(page, GFP_KERNEL)) return -EAGAIN; -#ifdef CONFIG_MIGRATION return migrate_page(mapping, newpage, page); -#else - return -ENOSYS; -#endif } +#endif static int btree_writepage(struct page *page, struct writeback_control *wbc) { @@ -1009,7 +1007,10 @@ static int find_and_setup_root(struct btrfs_root *tree_root, blocksize = btrfs_level_size(root, btrfs_root_level(&root->root_item)); root->node = read_tree_block(root, btrfs_root_bytenr(&root->root_item), blocksize, generation); - BUG_ON(!root->node); + if (!root->node || !btrfs_buffer_uptodate(root->node, generation)) { + free_extent_buffer(root->node); + return -EIO; + } root->commit_root = btrfs_root_node(root); return 0; } |