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/*
* 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_COMMON_H__
#define __XFS_SCRUB_COMMON_H__
/*
* We /could/ terminate a scrub/repair operation early. If we're not
* in a good place to continue (fatal signal, etc.) then bail out.
* Note that we're careful not to make any judgements about *error.
*/
static inline bool
xfs_scrub_should_terminate(
struct xfs_scrub_context *sc,
int *error)
{
if (fatal_signal_pending(current)) {
if (*error == 0)
*error = -EAGAIN;
return true;
}
return false;
}
/*
* Grab an empty transaction so that we can re-grab locked buffers if
* one of our btrees turns out to be cyclic.
*/
static inline int
xfs_scrub_trans_alloc(
struct xfs_scrub_metadata *sm,
struct xfs_mount *mp,
struct xfs_trans **tpp)
{
return xfs_trans_alloc_empty(mp, tpp);
}
bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
xfs_agblock_t bno, int *error);
bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork,
xfs_fileoff_t offset, int *error);
void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc,
struct xfs_buf *bp);
void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, struct xfs_buf *bp);
void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc,
struct xfs_buf *bp);
void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino,
struct xfs_buf *bp);
void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork,
xfs_fileoff_t offset);
void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc,
struct xfs_buf *bp);
void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork,
xfs_fileoff_t offset);
void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc);
/* Setup functions */
int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip);
int xfs_scrub_setup_ag_header(struct xfs_scrub_context *sc,
struct xfs_inode *ip);
void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa);
int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
struct xfs_scrub_ag *sa);
int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
struct xfs_buf **agi, struct xfs_buf **agf,
struct xfs_buf **agfl);
void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa);
int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc,
struct xfs_scrub_ag *sa);
#endif /* __XFS_SCRUB_COMMON_H__ */
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