diff options
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r-- | fs/btrfs/ioctl.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 9df50fa8a078..47127c1bd290 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -575,13 +575,13 @@ fail: */ static inline int btrfs_check_sticky(struct inode *dir, struct inode *inode) { - uid_t fsuid = current_fsuid(); + kuid_t fsuid = current_fsuid(); if (!(dir->i_mode & S_ISVTX)) return 0; - if (inode->i_uid == fsuid) + if (uid_eq(inode->i_uid, fsuid)) return 0; - if (dir->i_uid == fsuid) + if (uid_eq(dir->i_uid, fsuid)) return 0; return !capable(CAP_FOWNER); } @@ -1397,7 +1397,6 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file, u64 *transid, bool readonly, struct btrfs_qgroup_inherit **inherit) { - struct file *src_file; int namelen; int ret = 0; @@ -1421,25 +1420,24 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file, ret = btrfs_mksubvol(&file->f_path, name, namelen, NULL, transid, readonly, inherit); } else { + struct fd src = fdget(fd); struct inode *src_inode; - src_file = fget(fd); - if (!src_file) { + if (!src.file) { ret = -EINVAL; goto out_drop_write; } - src_inode = src_file->f_path.dentry->d_inode; + src_inode = src.file->f_path.dentry->d_inode; if (src_inode->i_sb != file->f_path.dentry->d_inode->i_sb) { printk(KERN_INFO "btrfs: Snapshot src from " "another FS\n"); ret = -EINVAL; - fput(src_file); - goto out_drop_write; + } else { + ret = btrfs_mksubvol(&file->f_path, name, namelen, + BTRFS_I(src_inode)->root, + transid, readonly, inherit); } - ret = btrfs_mksubvol(&file->f_path, name, namelen, - BTRFS_I(src_inode)->root, - transid, readonly, inherit); - fput(src_file); + fdput(src); } out_drop_write: mnt_drop_write_file(file); @@ -2341,7 +2339,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, { struct inode *inode = fdentry(file)->d_inode; struct btrfs_root *root = BTRFS_I(inode)->root; - struct file *src_file; + struct fd src_file; struct inode *src; struct btrfs_trans_handle *trans; struct btrfs_path *path; @@ -2376,24 +2374,24 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, if (ret) return ret; - src_file = fget(srcfd); - if (!src_file) { + src_file = fdget(srcfd); + if (!src_file.file) { ret = -EBADF; goto out_drop_write; } ret = -EXDEV; - if (src_file->f_path.mnt != file->f_path.mnt) + if (src_file.file->f_path.mnt != file->f_path.mnt) goto out_fput; - src = src_file->f_dentry->d_inode; + src = src_file.file->f_dentry->d_inode; ret = -EINVAL; if (src == inode) goto out_fput; /* the src must be open for reading */ - if (!(src_file->f_mode & FMODE_READ)) + if (!(src_file.file->f_mode & FMODE_READ)) goto out_fput; /* don't make the dst file partly checksummed */ @@ -2724,7 +2722,7 @@ out_unlock: vfree(buf); btrfs_free_path(path); out_fput: - fput(src_file); + fdput(src_file); out_drop_write: mnt_drop_write_file(file); return ret; |