mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
dcb660f922
Create a probe scrubber with id 0. This will be used by xfs_scrub to probe the kernel's abilities to scrub (and repair) the metadata. We do this by validating the ioctl inputs from userspace, preparing the filesystem for a scrub (or a repair) operation, and immediately returning to userspace. Userspace can use the returned errno and structure state to decide (in broad terms) if scrub/repair are supported by the running kernel. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2017 Oracle. All Rights Reserved.
|
|
*
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
#ifndef __XFS_SCRUB_SCRUB_H__
|
|
#define __XFS_SCRUB_SCRUB_H__
|
|
|
|
struct xfs_scrub_context;
|
|
|
|
struct xfs_scrub_meta_ops {
|
|
/* Acquire whatever resources are needed for the operation. */
|
|
int (*setup)(struct xfs_scrub_context *,
|
|
struct xfs_inode *);
|
|
|
|
/* Examine metadata for errors. */
|
|
int (*scrub)(struct xfs_scrub_context *);
|
|
|
|
/* Decide if we even have this piece of metadata. */
|
|
bool (*has)(struct xfs_sb *);
|
|
};
|
|
|
|
struct xfs_scrub_context {
|
|
/* General scrub state. */
|
|
struct xfs_mount *mp;
|
|
struct xfs_scrub_metadata *sm;
|
|
const struct xfs_scrub_meta_ops *ops;
|
|
struct xfs_trans *tp;
|
|
struct xfs_inode *ip;
|
|
bool try_harder;
|
|
};
|
|
|
|
/* Metadata scrubbers */
|
|
int xfs_scrub_tester(struct xfs_scrub_context *sc);
|
|
|
|
#endif /* __XFS_SCRUB_SCRUB_H__ */
|