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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2021 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_ORPHANAGE_H__
#define __XFS_SCRUB_ORPHANAGE_H__
#ifdef CONFIG_XFS_ONLINE_REPAIR
int xrep_orphanage_create(struct xfs_scrub *sc);
/*
* If we're doing a repair, ensure that the orphanage exists and attach it to
* the scrub context.
*/
static inline int
xrep_orphanage_try_create(
struct xfs_scrub *sc)
{
int error;
ASSERT(sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR);
error = xrep_orphanage_create(sc);
switch (error) {
case 0:
case -ENOENT:
case -ENOTDIR:
case -ENOSPC:
/*
* If the orphanage can't be found or isn't a directory, we'll
* keep going, but we won't be able to attach the file to the
* orphanage if we can't find the parent.
*/
return 0;
}
return error;
}
int xrep_orphanage_iolock_two(struct xfs_scrub *sc);
/* Information about a request to add a file to the orphanage. */
struct xrep_orphanage_req {
/* Name structure; caller must provide a buffer separately. */
struct xfs_name xname;
struct xfs_scrub *sc;
/* Block reservations for orphanage and child (if directory). */
unsigned int orphanage_blkres;
unsigned int child_blkres;
};
static inline size_t
xrep_orphanage_req_sizeof(void)
{
return sizeof(struct xrep_orphanage_req) + MAXNAMELEN + 1;
}
void xrep_orphanage_compute_blkres(struct xfs_scrub *sc,
struct xrep_orphanage_req *orph);
int xrep_orphanage_compute_name(struct xrep_orphanage_req *orph,
unsigned char *namebuf);
int xrep_orphanage_ilock_resv_quota(struct xrep_orphanage_req *orph);
int xrep_orphanage_adopt(struct xrep_orphanage_req *orph);
void xrep_orphanage_ilock(struct xfs_scrub *sc, unsigned int ilock_flags);
bool xrep_orphanage_ilock_nowait(struct xfs_scrub *sc,
unsigned int ilock_flags);
void xrep_orphanage_iunlock(struct xfs_scrub *sc, unsigned int ilock_flags);
void xrep_orphanage_rele(struct xfs_scrub *sc);
#else
# define xrep_orphanage_rele(sc)
#endif /* CONFIG_XFS_ONLINE_REPAIR */
#endif /* __XFS_SCRUB_ORPHANAGE_H__ */
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