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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (c) 2025 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef _LINUX_FSERROR_H__
#define _LINUX_FSERROR_H__
void fserror_mount(struct super_block *sb);
void fserror_unmount(struct super_block *sb);
enum fserror_type {
/* pagecache I/O failed */
FSERR_BUFFERED_READ,
FSERR_BUFFERED_WRITE,
/* direct I/O failed */
FSERR_DIRECTIO_READ,
FSERR_DIRECTIO_WRITE,
/* out of band media error reported */
FSERR_DATA_LOST,
/* filesystem metadata */
FSERR_METADATA,
};
struct fserror_event {
struct work_struct work;
struct super_block *sb;
struct inode *inode;
loff_t pos;
u64 len;
enum fserror_type type;
/* negative error number */
int error;
};
void fserror_report(struct super_block *sb, struct inode *inode,
enum fserror_type type, loff_t pos, u64 len, int error,
gfp_t gfp);
static inline void fserror_report_io(struct inode *inode,
enum fserror_type type, loff_t pos,
u64 len, int error, gfp_t gfp)
{
fserror_report(inode->i_sb, inode, type, pos, len, error, gfp);
}
static inline void fserror_report_data_lost(struct inode *inode, loff_t pos,
u64 len, gfp_t gfp)
{
fserror_report(inode->i_sb, inode, FSERR_DATA_LOST, pos, len, -EIO,
gfp);
}
static inline void fserror_report_file_metadata(struct inode *inode, int error,
gfp_t gfp)
{
fserror_report(inode->i_sb, inode, FSERR_METADATA, 0, 0, error, gfp);
}
static inline void fserror_report_metadata(struct super_block *sb, int error,
gfp_t gfp)
{
fserror_report(sb, NULL, FSERR_METADATA, 0, 0, error, gfp);
}
static inline void fserror_report_shutdown(struct super_block *sb, gfp_t gfp)
{
fserror_report(sb, NULL, FSERR_METADATA, 0, 0, -ESHUTDOWN, gfp);
}
#endif /* _LINUX_FSERROR_H__ */
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