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Introduce xfs_notify_failure.c to handle failure related works, such as implement ->notify_failure(), register/unregister dax holder in xfs, and so on. If the rmap feature of XFS enabled, we can query it to find files and metadata which are associated with the corrupt data. For now all we do is kill processes with that file mapped into their address spaces, but future patches could actually do something about corrupt metadata. After that, the memory failure needs to notify the processes who are using those files. Link: https://lkml.kernel.org/r/20220603053738.1218681-7-ruansy.fnst@fujitsu.com Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dan Williams <dan.j.wiliams@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Goldwyn Rodrigues <rgoldwyn@suse.com> Cc: Goldwyn Rodrigues <rgoldwyn@suse.de> Cc: Jane Chu <jane.chu@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Ritesh Harjani <riteshh@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_SUPER_H__
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#define __XFS_SUPER_H__
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#include <linux/exportfs.h>
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#ifdef CONFIG_XFS_QUOTA
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extern int xfs_qm_init(void);
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extern void xfs_qm_exit(void);
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# define XFS_QUOTA_STRING "quota, "
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#else
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# define xfs_qm_init() (0)
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# define xfs_qm_exit() do { } while (0)
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# define XFS_QUOTA_STRING
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#endif
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#ifdef CONFIG_XFS_POSIX_ACL
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# define XFS_ACL_STRING "ACLs, "
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# define set_posix_acl_flag(sb) ((sb)->s_flags |= SB_POSIXACL)
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#else
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# define XFS_ACL_STRING
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# define set_posix_acl_flag(sb) do { } while (0)
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#endif
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#define XFS_SECURITY_STRING "security attributes, "
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#ifdef CONFIG_XFS_RT
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# define XFS_REALTIME_STRING "realtime, "
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#else
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# define XFS_REALTIME_STRING
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#endif
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#ifdef CONFIG_XFS_ONLINE_SCRUB
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# define XFS_SCRUB_STRING "scrub, "
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#else
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# define XFS_SCRUB_STRING
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#endif
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#ifdef CONFIG_XFS_ONLINE_REPAIR
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# define XFS_REPAIR_STRING "repair, "
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#else
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# define XFS_REPAIR_STRING
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#endif
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#ifdef CONFIG_XFS_WARN
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# define XFS_WARN_STRING "verbose warnings, "
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#else
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# define XFS_WARN_STRING
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#endif
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#ifdef CONFIG_XFS_ASSERT_FATAL
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# define XFS_ASSERT_FATAL_STRING "fatal assert, "
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#else
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# define XFS_ASSERT_FATAL_STRING
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#endif
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#ifdef DEBUG
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# define XFS_DBG_STRING "debug"
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#else
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# define XFS_DBG_STRING "no debug"
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#endif
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#define XFS_VERSION_STRING "SGI XFS"
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#define XFS_BUILD_OPTIONS XFS_ACL_STRING \
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XFS_SECURITY_STRING \
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XFS_REALTIME_STRING \
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XFS_SCRUB_STRING \
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XFS_REPAIR_STRING \
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XFS_WARN_STRING \
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XFS_QUOTA_STRING \
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XFS_ASSERT_FATAL_STRING \
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XFS_DBG_STRING /* DBG must be last */
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#ifdef DEBUG
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# define XFS_WQFLAGS(wqflags) (WQ_SYSFS | (wqflags))
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#else
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# define XFS_WQFLAGS(wqflags) (wqflags)
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#endif
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struct xfs_inode;
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struct xfs_mount;
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struct xfs_buftarg;
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struct block_device;
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extern void xfs_flush_inodes(struct xfs_mount *mp);
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extern xfs_agnumber_t xfs_set_inode_alloc(struct xfs_mount *,
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xfs_agnumber_t agcount);
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extern const struct export_operations xfs_export_operations;
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extern const struct quotactl_ops xfs_quotactl_operations;
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extern const struct dax_holder_operations xfs_dax_holder_operations;
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extern void xfs_reinit_percpu_counters(struct xfs_mount *mp);
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extern struct workqueue_struct *xfs_discard_wq;
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#define XFS_M(sb) ((struct xfs_mount *)((sb)->s_fs_info))
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#endif /* __XFS_SUPER_H__ */
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