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