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btrfs: remove unused drop_on_err in btrfs_mkdir

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Up to commit 32955c5422 ("btrfs: switch to discard_new_inode()") the
drop_on_err variable in btrfs_mkdir() was used to check whether the
inode had to be dropped via iput().

After commit 32955c5422 ("btrfs: switch to discard_new_inode()")
discard_new_inode() is called when err is set and inode is non NULL.
Therefore drop_on_err is not used anymore and thus causes a warning when
building with -Wunused-but-set-variable.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2018-11-19 10:38:13 +01:00 committed by David Sterba
parent 9bfd61d975
commit e9a05cf31b
1 changed files with 0 additions and 3 deletions
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3
fs/btrfs/inode.c
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@ -6645,7 +6645,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(dir)->root;
int err = 0;
int drop_on_err = 0;
u64 objectid = 0;
u64 index = 0;
@ -6671,7 +6670,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
goto out_fail;
}
drop_on_err = 1;
/* these must be set before we unlock the inode */
inode->i_op = &btrfs_dir_inode_operations;
inode->i_fop = &btrfs_dir_file_operations;
@ -6692,7 +6690,6 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
goto out_fail;
d_instantiate_new(dentry, inode);
drop_on_err = 0;
out_fail:
btrfs_end_transaction(trans);