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Btrfs: Documentation update

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2007-06-22 14:49:31 -04:00 committed by David Woodhouse
parent 5eda7b5e9b
commit 22bb92f376
3 changed files with 7 additions and 13 deletions
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17
fs/btrfs/INSTALL
View file

@ -5,19 +5,16 @@ directory can only be changed by btrfsctl right now, and normal filesystem
operations do not work on it. The default subvolume is called 'default',
and you can create files and directories in mount_point/default
Btrfs uses the crypto manager interface in the kernel for file and
metadata checksums. You need to compile the kernel with:
Btrfs uses libcrc32c in the kernel for file and metadata checksums. You need
to compile the kernel with:
CONFIG_CRYPTO=y
CONFIG_CRYPTO_MANAGER=m
CONFIG_CRYPTO_CRC32C=m
CONFIG_LIBCRC32C=m
cryptomanager and crc32c can be static as well. Once your kernel is
setup, typing make in the btrfs module sources will build against the
running kernel. When the build is complete:
libcrc32c can be static as well. Once your kernel is setup, typing make in the
btrfs module sources will build against the running kernel. When the build is
complete:
modprobe crc32c
modprobe cryptomgr
modprobe libcrc32c
insmod btrfs.ko
The Btrfs utility programs require libuuid to build. This can be found

2
fs/btrfs/root-tree.c
View file

@ -51,7 +51,6 @@ int btrfs_find_last_root(struct btrfs_root *root, u64 objectid,
memcpy(item, btrfs_item_ptr(l, slot, struct btrfs_root_item),
sizeof(*item));
btrfs_disk_key_to_cpu(key, &l->items[slot].key);
printk("find last finds key %Lu %u %Lu slot %d search for obj %Lu\n", key->objectid, key->flags, key->offset, slot, objectid);
ret = 0;
out:
btrfs_release_path(root, path);
@ -141,7 +140,6 @@ int btrfs_find_dead_roots(struct btrfs_root *root)
ret = PTR_ERR(root);
goto err;
}
printk("found dead root %Lu %u %Lu\n", key.objectid, key.flags, key.offset);
ret = btrfs_add_dead_root(dead_root,
&root->fs_info->dead_roots);
if (ret)

1
fs/btrfs/transaction.c
View file

@ -308,7 +308,6 @@ static int drop_dirty_roots(struct btrfs_root *tree_root,
list_del_init(&dirty->list);
trans = btrfs_start_transaction(tree_root, 1);
printk("deleting root %Lu %u %Lu\n", dirty->snap_key.objectid, dirty->snap_key.flags, dirty->snap_key.offset);
ret = btrfs_drop_snapshot(trans, dirty->root,
dirty->commit_root);
BUG_ON(ret);