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Subject[PATCH -next] btrfs: remove set but not used variable 'root_objectid'
Date
fs/btrfs/inode.c: In function btrfs_rename:
fs/btrfs/inode.c:9196:6: warning: variable root_objectid set but not used [-Wunused-but-set-variable]

commit f8b3030e0807 ("btrfs: rework arguments of btrfs_unlink_subvol")
left behind this unused variable.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
fs/btrfs/inode.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 493c0fe..990f509 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9204,7 +9204,6 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_inode = d_inode(new_dentry);
struct inode *old_inode = d_inode(old_dentry);
u64 index = 0;
- u64 root_objectid;
int ret;
u64 old_ino = btrfs_ino(BTRFS_I(old_inode));
bool log_pinned = false;
@@ -9331,7 +9330,6 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
new_inode->i_ctime = current_time(new_inode);
if (unlikely(btrfs_ino(BTRFS_I(new_inode)) ==
BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
- root_objectid = BTRFS_I(new_inode)->location.objectid;
ret = btrfs_unlink_subvol(trans, new_dir, new_dentry);
BUG_ON(new_inode->i_nlink == 0);
} else {
--
2.7.4

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