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Commit 2a79f17e authored by Al Viro's avatar Al Viro
Browse files

vfs: mnt_drop_write_file() 



new helper (wrapper around mnt_drop_write()) to be used in pair with
mnt_want_write_file().

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8c9379e9

fs/btrfs/ioctl.c

+6 −6
Original line number Diff line number Diff line
@@ -259,7 +259,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) 


	btrfs_end_transaction(trans, root);



	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);



	ret = 0;

 out_unlock:
@@ -1971,7 +1971,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, 
	dput(dentry);

out_unlock_dir:

	mutex_unlock(&dir->i_mutex);

	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

out:

	kfree(vol_args);

	return err;
@@ -2040,7 +2040,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp) 
		ret = -EINVAL;

	}

out:

	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

	return ret;

}
@@ -2510,7 +2510,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, 
out_fput:

	fput(src_file);

out_drop_write:

	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

	return ret;

}
@@ -2565,7 +2565,7 @@ static long btrfs_ioctl_trans_start(struct file *file) 


out_drop:

	atomic_dec(&root->fs_info->open_ioctl_trans);

	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

out:

	return ret;

}
@@ -2800,7 +2800,7 @@ long btrfs_ioctl_trans_end(struct file *file) 


	atomic_dec(&root->fs_info->open_ioctl_trans);



	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

	return 0;

}

fs/ext2/ioctl.c

+3 −3
Original line number Diff line number Diff line
@@ -83,7 +83,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		inode->i_ctime = CURRENT_TIME_SEC;

		mark_inode_dirty(inode);

setflags_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return ret;

	}

	case EXT2_IOC_GETVERSION:
@@ -100,7 +100,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
			inode->i_ctime = CURRENT_TIME_SEC;

			mark_inode_dirty(inode);

		}

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return ret;

	case EXT2_IOC_GETRSVSZ:

		if (test_opt(inode->i_sb, RESERVATION)
@@ -145,7 +145,7 @@ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
			rsv->rsv_goal_size = rsv_window_size;

		}

		mutex_unlock(&ei->truncate_mutex);

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return 0;

	}

	default:

fs/ext3/ioctl.c

+5 −5
Original line number Diff line number Diff line
@@ -110,7 +110,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
			err = ext3_change_inode_journal_flag(inode, jflag);

flags_out:

		mutex_unlock(&inode->i_mutex);

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT3_IOC_GETVERSION:
@@ -147,7 +147,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		}

		ext3_journal_stop(handle);

setversion_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT3_IOC_GETRSVSZ:
@@ -195,7 +195,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		}

		mutex_unlock(&ei->truncate_mutex);

setrsvsz_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT3_IOC_GROUP_EXTEND: {
@@ -221,7 +221,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		if (err == 0)

			err = err2;

group_extend_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT3_IOC_GROUP_ADD: {
@@ -249,7 +249,7 @@ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		if (err == 0)

			err = err2;

group_add_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case FITRIM: {

fs/ext4/ioctl.c

+7 −7
Original line number Diff line number Diff line
@@ -134,7 +134,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
			err = ext4_ext_migrate(inode);

flags_out:

		mutex_unlock(&inode->i_mutex);

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT4_IOC_GETVERSION:
@@ -171,7 +171,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		}

		ext4_journal_stop(handle);

setversion_out:

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

	case EXT4_IOC_GROUP_EXTEND: {
@@ -204,7 +204,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		}

		if (err == 0)

			err = err2;

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		ext4_resize_end(sb);



		return err;
@@ -246,7 +246,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 


		err = ext4_move_extents(filp, donor_filp, me.orig_start,

					me.donor_start, me.len, &me.moved_len);

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		if (me.moved_len > 0)

			file_remove_suid(donor_filp);
@@ -289,7 +289,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		}

		if (err == 0)

			err = err2;

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		ext4_resize_end(sb);



		return err;
@@ -313,7 +313,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		mutex_lock(&(inode->i_mutex));

		err = ext4_ext_migrate(inode);

		mutex_unlock(&(inode->i_mutex));

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}
@@ -327,7 +327,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
		if (err)

			return err;

		err = ext4_alloc_da_blocks(inode);

		mnt_drop_write(filp->f_path.mnt);

		mnt_drop_write_file(filp);

		return err;

	}

fs/fat/file.c

+1 −1
Original line number Diff line number Diff line
@@ -108,7 +108,7 @@ static int fat_ioctl_set_attributes(struct file *file, u32 __user *user_attr) 
	fat_save_attrs(inode, attr);

	mark_inode_dirty(inode);

out_drop_write:

	mnt_drop_write(file->f_path.mnt);

	mnt_drop_write_file(file);

out_unlock_inode:

	mutex_unlock(&inode->i_mutex);

out: