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linux/fs/xfs/libxfs/xfs_health.h

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xfs: Use the correct style for SPDX License Identifier This patch corrects the SPDX License Identifier style in header files related to XFS File System support. For C header files Documentation/process/license-rules.rst mandates C-like comments. (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-05-12 16:54:17 -07:00
/* SPDX-License-Identifier: GPL-2.0+ */
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/*
* Copyright (C) 2019 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <darrick.wong@oracle.com>
*/
#ifndef __XFS_HEALTH_H__
#define __XFS_HEALTH_H__
/*
* In-Core Filesystem Health Assessments
* =====================================
*
* We'd like to be able to summarize the current health status of the
* filesystem so that the administrator knows when it's necessary to schedule
* some downtime for repairs. Until then, we would also like to avoid abrupt
* shutdowns due to corrupt metadata.
*
* The online scrub feature evaluates the health of all filesystem metadata.
* When scrub detects corruption in a piece of metadata it will set the
* corresponding sickness flag, and repair will clear it if successful. If
* problems remain at unmount time, we can also request manual intervention by
* logging a notice to run xfs_repair.
*
* Each health tracking group uses a pair of fields for reporting. The
* "checked" field tell us if a given piece of metadata has ever been examined,
* and the "sick" field tells us if that piece was found to need repairs.
* Therefore we can conclude that for a given sick flag value:
*
xfs: report ag header corruption errors to the health tracking system Whenever we encounter a corrupt AG header, we should report that to the health monitoring system for later reporting. Buffer readers that don't respond to corruption events with a _mark_sick call can be detected with the following script: #!/bin/bash # Detect missing calls to xfs_*_mark_sick filter=cat tty -s && filter=less git grep -A10 -E '( = xfs_trans_read_buf| = xfs_buf_read\()' fs/xfs/*.[ch] fs/xfs/libxfs/*.[ch] | awk ' BEGIN { ignore = 0; lineno = 0; delete lines; } { if ($0 == "--") { if (!ignore) { for (i = 0; i < lineno; i++) { print(lines[i]); } printf("--\n"); } delete lines; lineno = 0; ignore = 0; } else if ($0 ~ /mark_sick/) { ignore = 1; } else { lines[lineno++] = $0; } } ' | $filter Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:03 -08:00
* - checked && sick => metadata needs repair
* - checked && !sick => metadata is ok
* - !checked && sick => errors have been observed during normal operation,
* but the metadata has not been checked thoroughly
* - !checked && !sick => has not been examined since mount
xfs: add secondary and indirect classes to the health tracking system Establish two more classes of health tracking bits: * Indirect problems, which suggest problems in other health domains that we weren't able to preserve. * Secondary problems, which track state that's related to primary evidence of health problems; and The first class we'll use in an upcoming patch to record in the AG health status the fact that we ran out of memory and had to inactivate an inode with defective metadata. The second class we use to indicate that repair knows that an inode is bad and we need to fix it later. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
*
* Evidence of health problems can be sorted into three basic categories:
*
* a) Primary evidence, which signals that something is defective within the
* general grouping of metadata.
*
* b) Secondary evidence, which are side effects of primary problem but are
* not themselves problems. These can be forgotten when the primary
* health problems are addressed.
*
* c) Indirect evidence, which points to something being wrong in another
* group, but we had to release resources and this is all that's left of
* that state.
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
*/
struct xfs_mount;
struct xfs_perag;
struct xfs_inode;
xfs: report fs and rt health via geometry structure Use our newly expanded geometry structure to report the overall fs and realtime health status. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:17 -07:00
struct xfs_fsop_geom;
xfs: report btree block corruption errors to the health system Whenever we encounter corrupt btree blocks, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:32:09 -08:00
struct xfs_btree_cur;
xfs: report dir/attr block corruption errors to the health system Whenever we encounter corrupt directory or extended attribute blocks, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:32:18 -08:00
struct xfs_da_args;
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/* Observable health issues for metadata spanning the entire filesystem. */
#define XFS_SICK_FS_COUNTERS (1 << 0) /* summary counters */
#define XFS_SICK_FS_UQUOTA (1 << 1) /* user quota */
#define XFS_SICK_FS_GQUOTA (1 << 2) /* group quota */
#define XFS_SICK_FS_PQUOTA (1 << 3) /* project quota */
xfs: report the health of quota counts Report the health of quota counts. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:30:51 -08:00
#define XFS_SICK_FS_QUOTACHECK (1 << 4) /* quota counts */
xfs: report health of inode link counts Report on the health of the inode link counts. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:30:58 -08:00
#define XFS_SICK_FS_NLINKS (1 << 5) /* inode link counts */
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/* Observable health issues for realtime volume metadata. */
#define XFS_SICK_RT_BITMAP (1 << 0) /* realtime bitmap */
#define XFS_SICK_RT_SUMMARY (1 << 1) /* realtime summary */
/* Observable health issues for AG metadata. */
#define XFS_SICK_AG_SB (1 << 0) /* superblock */
#define XFS_SICK_AG_AGF (1 << 1) /* AGF header */
#define XFS_SICK_AG_AGFL (1 << 2) /* AGFL header */
#define XFS_SICK_AG_AGI (1 << 3) /* AGI header */
#define XFS_SICK_AG_BNOBT (1 << 4) /* free space by block */
#define XFS_SICK_AG_CNTBT (1 << 5) /* free space by length */
#define XFS_SICK_AG_INOBT (1 << 6) /* inode index */
#define XFS_SICK_AG_FINOBT (1 << 7) /* free inode index */
#define XFS_SICK_AG_RMAPBT (1 << 8) /* reverse mappings */
#define XFS_SICK_AG_REFCNTBT (1 << 9) /* reference counts */
xfs: remember sick inodes that get inactivated If an unhealthy inode gets inactivated, remember this fact in the per-fs health summary. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
#define XFS_SICK_AG_INODES (1 << 10) /* inactivated bad inodes */
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/* Observable health issues for inode metadata. */
#define XFS_SICK_INO_CORE (1 << 0) /* inode core */
#define XFS_SICK_INO_BMBTD (1 << 1) /* data fork */
#define XFS_SICK_INO_BMBTA (1 << 2) /* attr fork */
#define XFS_SICK_INO_BMBTC (1 << 3) /* cow fork */
#define XFS_SICK_INO_DIR (1 << 4) /* directory */
#define XFS_SICK_INO_XATTR (1 << 5) /* extended attributes */
#define XFS_SICK_INO_SYMLINK (1 << 6) /* symbolic link remote target */
#define XFS_SICK_INO_PARENT (1 << 7) /* parent pointers */
xfs: set inode sick state flags when we zap either ondisk fork In a few patches, we'll add some online repair code that tries to massage the ondisk inode record just enough to get it to pass the inode verifiers so that we can continue with more file repairs. Part of that massaging can include zapping the ondisk forks to clear errors. After that point, the bmap fork repair functions will rebuild the zapped forks. Christoph asked for stronger protections against online repair zapping a fork to get the inode to load vs. other threads trying to access the partially repaired file. Do this by adding a special "[DA]FORK_ZAPPED" inode health flag whenever repair zaps a fork, and sprinkling checks for that flag into the various file operations for things that don't like handling an unexpected zero-extents fork. In practice xfs_scrub will scrub and fix the forks almost immediately after zapping them, so the window is very small. However, if a crash or unmount should occur, we can still detect these zapped inode forks by looking for a zero-extents fork when data was expected. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-12-15 10:03:35 -08:00
#define XFS_SICK_INO_BMBTD_ZAPPED (1 << 8) /* data fork erased */
#define XFS_SICK_INO_BMBTA_ZAPPED (1 << 9) /* attr fork erased */
#define XFS_SICK_INO_DIR_ZAPPED (1 << 10) /* directory erased */
#define XFS_SICK_INO_SYMLINK_ZAPPED (1 << 11) /* symlink erased */
xfs: remember sick inodes that get inactivated If an unhealthy inode gets inactivated, remember this fact in the per-fs health summary. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
/* Don't propagate sick status to ag health summary during inactivation */
#define XFS_SICK_INO_FORGET (1 << 12)
xfs: report directory tree corruption in the health information Report directories that are the source of corruption in the directory tree. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-04-22 09:48:21 -07:00
#define XFS_SICK_INO_DIRTREE (1 << 13) /* directory tree structure */
xfs: remember sick inodes that get inactivated If an unhealthy inode gets inactivated, remember this fact in the per-fs health summary. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/* Primary evidence of health problems in a given group. */
#define XFS_SICK_FS_PRIMARY (XFS_SICK_FS_COUNTERS | \
XFS_SICK_FS_UQUOTA | \
XFS_SICK_FS_GQUOTA | \
xfs: report the health of quota counts Report the health of quota counts. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:30:51 -08:00
XFS_SICK_FS_PQUOTA | \
xfs: report health of inode link counts Report on the health of the inode link counts. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:30:58 -08:00
XFS_SICK_FS_QUOTACHECK | \
XFS_SICK_FS_NLINKS)
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
#define XFS_SICK_RT_PRIMARY (XFS_SICK_RT_BITMAP | \
XFS_SICK_RT_SUMMARY)
#define XFS_SICK_AG_PRIMARY (XFS_SICK_AG_SB | \
XFS_SICK_AG_AGF | \
XFS_SICK_AG_AGFL | \
XFS_SICK_AG_AGI | \
XFS_SICK_AG_BNOBT | \
XFS_SICK_AG_CNTBT | \
XFS_SICK_AG_INOBT | \
XFS_SICK_AG_FINOBT | \
XFS_SICK_AG_RMAPBT | \
XFS_SICK_AG_REFCNTBT)
#define XFS_SICK_INO_PRIMARY (XFS_SICK_INO_CORE | \
XFS_SICK_INO_BMBTD | \
XFS_SICK_INO_BMBTA | \
XFS_SICK_INO_BMBTC | \
XFS_SICK_INO_DIR | \
XFS_SICK_INO_XATTR | \
XFS_SICK_INO_SYMLINK | \
xfs: report directory tree corruption in the health information Report directories that are the source of corruption in the directory tree. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-04-22 09:48:21 -07:00
XFS_SICK_INO_PARENT | \
XFS_SICK_INO_DIRTREE)
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
xfs: set inode sick state flags when we zap either ondisk fork In a few patches, we'll add some online repair code that tries to massage the ondisk inode record just enough to get it to pass the inode verifiers so that we can continue with more file repairs. Part of that massaging can include zapping the ondisk forks to clear errors. After that point, the bmap fork repair functions will rebuild the zapped forks. Christoph asked for stronger protections against online repair zapping a fork to get the inode to load vs. other threads trying to access the partially repaired file. Do this by adding a special "[DA]FORK_ZAPPED" inode health flag whenever repair zaps a fork, and sprinkling checks for that flag into the various file operations for things that don't like handling an unexpected zero-extents fork. In practice xfs_scrub will scrub and fix the forks almost immediately after zapping them, so the window is very small. However, if a crash or unmount should occur, we can still detect these zapped inode forks by looking for a zero-extents fork when data was expected. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2023-12-15 10:03:35 -08:00
#define XFS_SICK_INO_ZAPPED (XFS_SICK_INO_BMBTD_ZAPPED | \
XFS_SICK_INO_BMBTA_ZAPPED | \
XFS_SICK_INO_DIR_ZAPPED | \
XFS_SICK_INO_SYMLINK_ZAPPED)
xfs: add secondary and indirect classes to the health tracking system Establish two more classes of health tracking bits: * Indirect problems, which suggest problems in other health domains that we weren't able to preserve. * Secondary problems, which track state that's related to primary evidence of health problems; and The first class we'll use in an upcoming patch to record in the AG health status the fact that we ran out of memory and had to inactivate an inode with defective metadata. The second class we use to indicate that repair knows that an inode is bad and we need to fix it later. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
/* Secondary state related to (but not primary evidence of) health problems. */
#define XFS_SICK_FS_SECONDARY (0)
#define XFS_SICK_RT_SECONDARY (0)
#define XFS_SICK_AG_SECONDARY (0)
xfs: remember sick inodes that get inactivated If an unhealthy inode gets inactivated, remember this fact in the per-fs health summary. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
#define XFS_SICK_INO_SECONDARY (XFS_SICK_INO_FORGET)
xfs: add secondary and indirect classes to the health tracking system Establish two more classes of health tracking bits: * Indirect problems, which suggest problems in other health domains that we weren't able to preserve. * Secondary problems, which track state that's related to primary evidence of health problems; and The first class we'll use in an upcoming patch to record in the AG health status the fact that we ran out of memory and had to inactivate an inode with defective metadata. The second class we use to indicate that repair knows that an inode is bad and we need to fix it later. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
/* Evidence of health problems elsewhere. */
#define XFS_SICK_FS_INDIRECT (0)
#define XFS_SICK_RT_INDIRECT (0)
xfs: remember sick inodes that get inactivated If an unhealthy inode gets inactivated, remember this fact in the per-fs health summary. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
#define XFS_SICK_AG_INDIRECT (XFS_SICK_AG_INODES)
xfs: add secondary and indirect classes to the health tracking system Establish two more classes of health tracking bits: * Indirect problems, which suggest problems in other health domains that we weren't able to preserve. * Secondary problems, which track state that's related to primary evidence of health problems; and The first class we'll use in an upcoming patch to record in the AG health status the fact that we ran out of memory and had to inactivate an inode with defective metadata. The second class we use to indicate that repair knows that an inode is bad and we need to fix it later. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:33:03 -08:00
#define XFS_SICK_INO_INDIRECT (0)
/* All health masks. */
#define XFS_SICK_FS_ALL (XFS_SICK_FS_PRIMARY | \
XFS_SICK_FS_SECONDARY | \
XFS_SICK_FS_INDIRECT)
#define XFS_SICK_RT_ALL (XFS_SICK_RT_PRIMARY | \
XFS_SICK_RT_SECONDARY | \
XFS_SICK_RT_INDIRECT)
#define XFS_SICK_AG_ALL (XFS_SICK_AG_PRIMARY | \
XFS_SICK_AG_SECONDARY | \
XFS_SICK_AG_INDIRECT)
#define XFS_SICK_INO_ALL (XFS_SICK_INO_PRIMARY | \
XFS_SICK_INO_SECONDARY | \
XFS_SICK_INO_INDIRECT | \
XFS_SICK_INO_ZAPPED)
xfs: separate the marking of sick and checked metadata Split the setting of the sick and checked masks into separate functions as part of preparing to add the ability for regular runtime fs code (i.e. not scrub) to mark metadata structures sick when corruptions are found. Improve the documentation of libxfs' requirements for helper behavior. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:01 -08:00
/*
* These functions must be provided by the xfs implementation. Function
* behavior with respect to the first argument should be as follows:
*
* xfs_*_mark_sick: Set the sick flags and do not set checked flags.
* Runtime code should call this upon encountering
* a corruption.
*
* xfs_*_mark_corrupt: Set the sick and checked flags simultaneously.
* Fsck tools should call this when corruption is
* found.
*
* xfs_*_mark_healthy: Clear the sick flags and set the checked flags.
* Fsck tools should call this after correcting errors.
*
* xfs_*_measure_sickness: Return the sick and check status in the provided
* out parameters.
*/
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_fs_mark_sick(struct xfs_mount *mp, unsigned int mask);
xfs: separate the marking of sick and checked metadata Split the setting of the sick and checked masks into separate functions as part of preparing to add the ability for regular runtime fs code (i.e. not scrub) to mark metadata structures sick when corruptions are found. Improve the documentation of libxfs' requirements for helper behavior. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:01 -08:00
void xfs_fs_mark_corrupt(struct xfs_mount *mp, unsigned int mask);
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_fs_mark_healthy(struct xfs_mount *mp, unsigned int mask);
void xfs_fs_measure_sickness(struct xfs_mount *mp, unsigned int *sick,
unsigned int *checked);
void xfs_rt_mark_sick(struct xfs_mount *mp, unsigned int mask);
xfs: separate the marking of sick and checked metadata Split the setting of the sick and checked masks into separate functions as part of preparing to add the ability for regular runtime fs code (i.e. not scrub) to mark metadata structures sick when corruptions are found. Improve the documentation of libxfs' requirements for helper behavior. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:01 -08:00
void xfs_rt_mark_corrupt(struct xfs_mount *mp, unsigned int mask);
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_rt_mark_healthy(struct xfs_mount *mp, unsigned int mask);
void xfs_rt_measure_sickness(struct xfs_mount *mp, unsigned int *sick,
unsigned int *checked);
xfs: report ag header corruption errors to the health tracking system Whenever we encounter a corrupt AG header, we should report that to the health monitoring system for later reporting. Buffer readers that don't respond to corruption events with a _mark_sick call can be detected with the following script: #!/bin/bash # Detect missing calls to xfs_*_mark_sick filter=cat tty -s && filter=less git grep -A10 -E '( = xfs_trans_read_buf| = xfs_buf_read\()' fs/xfs/*.[ch] fs/xfs/libxfs/*.[ch] | awk ' BEGIN { ignore = 0; lineno = 0; delete lines; } { if ($0 == "--") { if (!ignore) { for (i = 0; i < lineno; i++) { print(lines[i]); } printf("--\n"); } delete lines; lineno = 0; ignore = 0; } else if ($0 ~ /mark_sick/) { ignore = 1; } else { lines[lineno++] = $0; } } ' | $filter Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:03 -08:00
void xfs_agno_mark_sick(struct xfs_mount *mp, xfs_agnumber_t agno,
unsigned int mask);
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_ag_mark_sick(struct xfs_perag *pag, unsigned int mask);
xfs: separate the marking of sick and checked metadata Split the setting of the sick and checked masks into separate functions as part of preparing to add the ability for regular runtime fs code (i.e. not scrub) to mark metadata structures sick when corruptions are found. Improve the documentation of libxfs' requirements for helper behavior. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:01 -08:00
void xfs_ag_mark_corrupt(struct xfs_perag *pag, unsigned int mask);
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_ag_mark_healthy(struct xfs_perag *pag, unsigned int mask);
void xfs_ag_measure_sickness(struct xfs_perag *pag, unsigned int *sick,
unsigned int *checked);
void xfs_inode_mark_sick(struct xfs_inode *ip, unsigned int mask);
xfs: separate the marking of sick and checked metadata Split the setting of the sick and checked masks into separate functions as part of preparing to add the ability for regular runtime fs code (i.e. not scrub) to mark metadata structures sick when corruptions are found. Improve the documentation of libxfs' requirements for helper behavior. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:01 -08:00
void xfs_inode_mark_corrupt(struct xfs_inode *ip, unsigned int mask);
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
void xfs_inode_mark_healthy(struct xfs_inode *ip, unsigned int mask);
void xfs_inode_measure_sickness(struct xfs_inode *ip, unsigned int *sick,
unsigned int *checked);
xfs: clear BAD_SUMMARY if unmounting an unhealthy filesystem If we know the filesystem metadata isn't healthy during unmount, we want to encourage the administrator to run xfs_repair right away. We can't do this if BAD_SUMMARY will cause an unclean log unmount to force summary recalculation, so turn it off if the fs is bad. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:16 -07:00
void xfs_health_unmount(struct xfs_mount *mp);
xfs: report block map corruption errors to the health tracking system Whenever we encounter a corrupt block mapping, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:51 -08:00
void xfs_bmap_mark_sick(struct xfs_inode *ip, int whichfork);
xfs: report btree block corruption errors to the health system Whenever we encounter corrupt btree blocks, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:32:09 -08:00
void xfs_btree_mark_sick(struct xfs_btree_cur *cur);
xfs: report dir/attr block corruption errors to the health system Whenever we encounter corrupt directory or extended attribute blocks, we should report that to the health monitoring system for later reporting. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:32:18 -08:00
void xfs_dirattr_mark_sick(struct xfs_inode *ip, int whichfork);
void xfs_da_mark_sick(struct xfs_da_args *args);
xfs: clear BAD_SUMMARY if unmounting an unhealthy filesystem If we know the filesystem metadata isn't healthy during unmount, we want to encourage the administrator to run xfs_repair right away. We can't do this if BAD_SUMMARY will cause an unclean log unmount to force summary recalculation, so turn it off if the fs is bad. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:16 -07:00
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
/* Now some helpers. */
static inline bool
xfs_fs_has_sickness(struct xfs_mount *mp, unsigned int mask)
{
unsigned int sick, checked;
xfs_fs_measure_sickness(mp, &sick, &checked);
return sick & mask;
}
static inline bool
xfs_rt_has_sickness(struct xfs_mount *mp, unsigned int mask)
{
unsigned int sick, checked;
xfs_rt_measure_sickness(mp, &sick, &checked);
return sick & mask;
}
static inline bool
xfs_ag_has_sickness(struct xfs_perag *pag, unsigned int mask)
{
unsigned int sick, checked;
xfs_ag_measure_sickness(pag, &sick, &checked);
return sick & mask;
}
static inline bool
xfs_inode_has_sickness(struct xfs_inode *ip, unsigned int mask)
{
unsigned int sick, checked;
xfs_inode_measure_sickness(ip, &sick, &checked);
return sick & mask;
}
static inline bool
xfs_fs_is_healthy(struct xfs_mount *mp)
{
return !xfs_fs_has_sickness(mp, -1U);
}
static inline bool
xfs_rt_is_healthy(struct xfs_mount *mp)
{
return !xfs_rt_has_sickness(mp, -1U);
}
static inline bool
xfs_ag_is_healthy(struct xfs_perag *pag)
{
return !xfs_ag_has_sickness(pag, -1U);
}
static inline bool
xfs_inode_is_healthy(struct xfs_inode *ip)
{
return !xfs_inode_has_sickness(ip, -1U);
}
xfs: report fs and rt health via geometry structure Use our newly expanded geometry structure to report the overall fs and realtime health status. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:17 -07:00
void xfs_fsop_geom_health(struct xfs_mount *mp, struct xfs_fsop_geom *geo);
xfs: report AG health via AG geometry ioctl Use the AG geometry info ioctl to report health status too. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:18 -07:00
void xfs_ag_geom_health(struct xfs_perag *pag, struct xfs_ag_geometry *ageo);
xfs: introduce new v5 bulkstat structure Introduce a new version of the in-core bulkstat structure that supports our new v5 format features. This structure also fills the gaps in the previous structure. We leave wiring up the ioctls for the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:26 -07:00
void xfs_bulkstat_health(struct xfs_inode *ip, struct xfs_bulkstat *bs);
xfs: report fs and rt health via geometry structure Use our newly expanded geometry structure to report the overall fs and realtime health status. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:41:17 -07:00
xfs: report ag header corruption errors to the health tracking system Whenever we encounter a corrupt AG header, we should report that to the health monitoring system for later reporting. Buffer readers that don't respond to corruption events with a _mark_sick call can be detected with the following script: #!/bin/bash # Detect missing calls to xfs_*_mark_sick filter=cat tty -s && filter=less git grep -A10 -E '( = xfs_trans_read_buf| = xfs_buf_read\()' fs/xfs/*.[ch] fs/xfs/libxfs/*.[ch] | awk ' BEGIN { ignore = 0; lineno = 0; delete lines; } { if ($0 == "--") { if (!ignore) { for (i = 0; i < lineno; i++) { print(lines[i]); } printf("--\n"); } delete lines; lineno = 0; ignore = 0; } else if ($0 ~ /mark_sick/) { ignore = 1; } else { lines[lineno++] = $0; } } ' | $filter Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
2024-02-22 12:31:03 -08:00
#define xfs_metadata_is_sick(error) \
(unlikely((error) == -EFSCORRUPTED || (error) == -EFSBADCRC))
xfs: track metadata health status Add the necessary in-core metadata fields to keep track of which parts of the filesystem have been observed and which parts were observed to be unhealthy, and print a warning at unmount time if we have unfixed problems. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-04-12 07:40:25 -07:00
#endif /* __XFS_HEALTH_H__ */
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