diff options
author | Chris Mason <chris.mason@oracle.com> | 2007-05-29 23:17:08 +0400 |
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committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-05-29 23:17:08 +0400 |
commit | 1de037a43edf67f3a9f66dd197195b3c08febb16 (patch) | |
tree | eba718d502f766f9527fcdc43961fb082641f3ac /fs/btrfs/file-item.c | |
parent | 3a686375629da5d2e2ad019265b66ef113c87455 (diff) | |
download | linux-1de037a43edf67f3a9f66dd197195b3c08febb16.tar.xz |
Btrfs: fixup various fsx failures
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/file-item.c')
-rw-r--r-- | fs/btrfs/file-item.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 7990b5742114..0782e924ddeb 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -2,6 +2,7 @@ #include "ctree.h" #include "disk-io.h" #include "transaction.h" +#include "print-tree.h" #define MAX_CSUM_ITEMS(r) ((((BTRFS_LEAF_DATA_SIZE(r) - \ sizeof(struct btrfs_item) * 2) / \ @@ -27,6 +28,10 @@ int btrfs_insert_file_extent(struct btrfs_trans_handle *trans, ret = btrfs_insert_empty_item(trans, root, path, &file_key, sizeof(*item)); + if (ret) { +printk("failed to insert %Lu %Lu ret %d\n", objectid, pos, ret); +btrfs_print_leaf(root, btrfs_buffer_leaf(path->nodes[0])); + } BUG_ON(ret); item = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]), path->slots[0], struct btrfs_file_extent_item); @@ -218,6 +223,31 @@ fail: return ret; } +int btrfs_csum_truncate(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_path *path, + u64 isize) +{ + struct btrfs_key key; + struct btrfs_leaf *leaf = btrfs_buffer_leaf(path->nodes[0]); + int slot = path->slots[0]; + int ret; + u32 new_item_size; + u64 new_item_span; + u64 blocks; + + btrfs_disk_key_to_cpu(&key, &leaf->items[slot].key); + if (isize <= key.offset) + return 0; + new_item_span = isize - key.offset; + blocks = (new_item_span + root->blocksize - 1) / root->blocksize; + new_item_size = blocks * BTRFS_CRC32_SIZE; + if (new_item_size >= btrfs_item_size(leaf->items + slot)) + return 0; + ret = btrfs_truncate_item(trans, root, path, new_item_size); + BUG_ON(ret); + return ret; +} + int btrfs_csum_verify_file_block(struct btrfs_root *root, u64 objectid, u64 offset, char *data, size_t len) |