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linux/fs/xfs/scrub/attr.h
Darrick J. Wong e47dcf113a xfs: repair extended attributes
If the extended attributes look bad, try to sift through the rubble to
find whatever keys/values we can, stage a new attribute structure in a
temporary file and use the atomic extent swapping mechanism to commit
the results in bulk.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-04-15 14:58:53 -07:00

32 lines
876 B
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019-2023 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_ATTR_H__
#define __XFS_SCRUB_ATTR_H__
/*
* Temporary storage for online scrub and repair of extended attributes.
*/
struct xchk_xattr_buf {
/* Bitmap of used space in xattr leaf blocks and shortform forks. */
unsigned long *usedmap;
/* Bitmap of free space in xattr leaf blocks. */
unsigned long *freemap;
/* Memory buffer used to hold salvaged xattr names. */
unsigned char *name;
/* Memory buffer used to extract xattr values. */
void *value;
size_t value_sz;
};
bool xchk_xattr_set_map(struct xfs_scrub *sc, unsigned long *map,
unsigned int start, unsigned int len);
int xchk_setup_xattr_buf(struct xfs_scrub *sc, size_t value_size);
#endif /* __XFS_SCRUB_ATTR_H__ */