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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  btrfs: fix oops when doing space balance
  Btrfs: don't panic if we get an error while balancing V2
  btrfs: add missing options displayed in mount output
This commit is contained in:
Linus Torvalds 2011-07-08 23:25:45 -07:00
commit 1acc9309eb
4 changed files with 20 additions and 6 deletions
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5
fs/btrfs/ctree.h
View File

@ -1335,6 +1335,11 @@ struct btrfs_ioctl_defrag_range_args {
*/
#define BTRFS_STRING_ITEM_KEY 253
/*
* Flags for mount options.
*
* Note: don't forget to add new options to btrfs_show_options()
*/
#define BTRFS_MOUNT_NODATASUM (1 << 0)
#define BTRFS_MOUNT_NODATACOW (1 << 1)
#define BTRFS_MOUNT_NOBARRIER (1 << 2)

12
fs/btrfs/inode.c
View File

@ -2678,12 +2678,14 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans,
int ret;
/*
* If root is tree root, it means this inode is used to
* store free space information. And these inodes are updated
* when committing the transaction, so they needn't delaye to
* be updated, or deadlock will occured.
* If the inode is a free space inode, we can deadlock during commit
* if we put it into the delayed code.
*
* The data relocation inode should also be directly updated
* without delay
*/
if (!is_free_space_inode(root, inode)) {
if (!is_free_space_inode(root, inode)
&& root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID) {
ret = btrfs_delayed_update_inode(trans, root, inode);
if (!ret)
btrfs_set_inode_last_trans(trans, inode);

6
fs/btrfs/super.c
View File

@ -723,6 +723,12 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",clear_cache");
if (btrfs_test_opt(root, USER_SUBVOL_RM_ALLOWED))
seq_puts(seq, ",user_subvol_rm_allowed");
if (btrfs_test_opt(root, ENOSPC_DEBUG))
seq_puts(seq, ",enospc_debug");
if (btrfs_test_opt(root, AUTO_DEFRAG))
seq_puts(seq, ",autodefrag");
if (btrfs_test_opt(root, INODE_MAP_CACHE))
seq_puts(seq, ",inode_cache");
return 0;
}

3
fs/btrfs/volumes.c
View File

@ -2098,7 +2098,8 @@ int btrfs_balance(struct btrfs_root *dev_root)
chunk_root->root_key.objectid,
found_key.objectid,
found_key.offset);
BUG_ON(ret && ret != -ENOSPC);
if (ret && ret != -ENOSPC)
goto error;
key.offset = found_key.offset - 1;
}
ret = 0;