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Btrfs: refactor error handling to drop inode in btrfs_create()

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Refactor it by checking whether the inode has been created and needs to be
dropped (drop_inode_on_err) and also if the err variable is set. That way the
variable doesn't need to be set on each and every error handling block.

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Filipe Brandenburger 2012-11-30 03:40:09 +00:00 committed by Chris Mason
parent 2794ed013b
commit 43baa579b3
1 changed files with 11 additions and 12 deletions
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23
fs/btrfs/inode.c
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@ -4989,7 +4989,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
struct inode *inode = NULL;
int drop_inode = 0;
int drop_inode_on_err = 0;
int err;
u64 objectid;
u64 index = 0;
@ -5014,12 +5014,11 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
err = PTR_ERR(inode);
goto out_unlock;
}
drop_inode_on_err = 1;
err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err) {
drop_inode = 1;
if (err)
goto out_unlock;
}
/*
* If the active LSM wants to access the inode during
@ -5032,16 +5031,16 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
err = btrfs_add_nondir(trans, dir, dentry, inode, 0, index);
if (err)
drop_inode = 1;
else {
inode->i_mapping->a_ops = &btrfs_aops;
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
d_instantiate(dentry, inode);
}
goto out_unlock;
inode->i_mapping->a_ops = &btrfs_aops;
inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
d_instantiate(dentry, inode);
out_unlock:
btrfs_end_transaction(trans, root);
if (drop_inode) {
if (err && drop_inode_on_err) {
inode_dec_link_count(inode);
iput(inode);
}