Commit 3962dfbe authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

Pull btrfs fixes from Chris Mason:
 "We have a small collection of fixes in my for-linus branch.

  The big thing that stands out is a revert of a new ioctl.  Users
  haven't shipped yet in btrfs-progs, and Dave Sterba found a better way
  to export the information"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: use right clone root offset for compressed extents
  btrfs: fix null pointer deference at btrfs_sysfs_add_one+0x105
  Btrfs: unset DCACHE_DISCONNECTED when mounting default subvol
  Btrfs: fix max_inline mount option
  Btrfs: fix a lockdep warning when cleaning up aborted transaction
  Revert "btrfs: add ioctl to export size of global metadata reservation"
parents 4302a875 93de4ba8

fs/btrfs/disk-io.c

+0 −1
Original line number Diff line number Diff line
@@ -3839,7 +3839,6 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, 
			rb_erase(&ref->rb_node, &head->ref_root);

			atomic_dec(&delayed_refs->num_entries);

			btrfs_put_delayed_ref(ref);

			cond_resched_lock(&head->lock);

		}

		if (head->must_insert_reserved)

			pin_bytes = true;

fs/btrfs/inode.c

+1 −1
Original line number Diff line number Diff line
@@ -5154,7 +5154,7 @@ static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry, 
			return ERR_CAST(inode);

	}



	return d_splice_alias(inode, dentry);

	return d_materialise_unique(dentry, inode);

}



unsigned char btrfs_filetype_table[] = {

fs/btrfs/ioctl.c

+0 −16
Original line number Diff line number Diff line
@@ -3537,20 +3537,6 @@ out: 
	return ret;

}



static long btrfs_ioctl_global_rsv(struct btrfs_root *root, void __user *arg)

{

	struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv;

	u64 reserved;



	spin_lock(&block_rsv->lock);

	reserved = block_rsv->reserved;

	spin_unlock(&block_rsv->lock);



	if (arg && copy_to_user(arg, &reserved, sizeof(reserved)))

		return -EFAULT;

	return 0;

}



/*

 * there are many ways the trans_start and trans_end ioctls can lead

 * to deadlocks.  They should only be used by applications that
@@ -4757,8 +4743,6 @@ long btrfs_ioctl(struct file *file, unsigned int 
		return btrfs_ioctl_logical_to_ino(root, argp);

	case BTRFS_IOC_SPACE_INFO:

		return btrfs_ioctl_space_info(root, argp);

	case BTRFS_IOC_GLOBAL_RSV:

		return btrfs_ioctl_global_rsv(root, argp);

	case BTRFS_IOC_SYNC: {

		int ret;

fs/btrfs/send.c

+10 −0
Original line number Diff line number Diff line
@@ -1332,6 +1332,16 @@ verbose_printk(KERN_DEBUG "btrfs: find_extent_clone: data_offset=%llu, " 
	}



	if (cur_clone_root) {

		if (compressed != BTRFS_COMPRESS_NONE) {

			/*

			 * Offsets given by iterate_extent_inodes() are relative

			 * to the start of the extent, we need to add logical

			 * offset from the file extent item.

			 * (See why at backref.c:check_extent_in_eb())

			 */

			cur_clone_root->offset += btrfs_file_extent_offset(eb,

									   fi);

		}

		*found = cur_clone_root;

		ret = 0;

	} else {

fs/btrfs/super.c

+9 −2
Original line number Diff line number Diff line
@@ -566,7 +566,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) 
				kfree(num);



				if (info->max_inline) {

					info->max_inline = max_t(u64,

					info->max_inline = min_t(u64,

						info->max_inline,

						root->sectorsize);

				}
@@ -855,6 +855,7 @@ static struct dentry *get_default_root(struct super_block *sb, 
	struct btrfs_path *path;

	struct btrfs_key location;

	struct inode *inode;

	struct dentry *dentry;

	u64 dir_id;

	int new = 0;
@@ -925,7 +926,13 @@ setup_root: 
		return dget(sb->s_root);

	}



	return d_obtain_alias(inode);

	dentry = d_obtain_alias(inode);

	if (!IS_ERR(dentry)) {

		spin_lock(&dentry->d_lock);

		dentry->d_flags &= ~DCACHE_DISCONNECTED;

		spin_unlock(&dentry->d_lock);

	}

	return dentry;

}



static int btrfs_fill_super(struct super_block *sb,

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