From: Mark Fasheh <mfas...@suse.com>
This is called from only one place - create_subvol() which passes errors
safely back out to it's caller, btrfs_mksubvol where they are handled.
Additionally, btrfs_create_subvol_root() itself bug's needlessly from error
return of btrfs_update_inode(). Since create_subvol() was fixed to catch
errors we can bubble this one up too.
Signed-off-by: Mark Fasheh <mfas...@suse.com>
---
fs/btrfs/inode.c | 3 +--
fs/btrfs/ioctl.c | 2 ++
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 15fceef..7028c0c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6722,10 +6722,9 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle
*trans,
btrfs_i_size_write(inode, 0);
err = btrfs_update_inode(trans, new_root, inode);
- BUG_ON(err);
iput(inode);
- return 0;
+ return err;
}
struct inode *btrfs_alloc_inode(struct super_block *sb)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 7cf0133..b3440f5 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -411,6 +411,8 @@ static noinline int create_subvol(struct btrfs_root *root,
btrfs_record_root_in_trans(trans, new_root);
ret = btrfs_create_subvol_root(trans, new_root, new_dirid);
+ if (ret)
+ goto fail;
/*
* insert the directory item
*/
--
1.7.6
--
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