mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 18:14:07 +08:00
f467cad95f
Use the "bad summary count" mount flag from the previous patch to skip writing the unmount record to force log recovery at the next mount, which will recalculate the summary counters for us. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
426 lines
11 KiB
C
426 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
#include "xfs.h"
|
|
#include "xfs_format.h"
|
|
#include "xfs_fs.h"
|
|
#include "xfs_log_format.h"
|
|
#include "xfs_trans_resv.h"
|
|
#include "xfs_mount.h"
|
|
#include "xfs_errortag.h"
|
|
#include "xfs_error.h"
|
|
#include "xfs_sysfs.h"
|
|
#include "xfs_inode.h"
|
|
|
|
#ifdef DEBUG
|
|
|
|
static unsigned int xfs_errortag_random_default[] = {
|
|
XFS_RANDOM_DEFAULT,
|
|
XFS_RANDOM_IFLUSH_1,
|
|
XFS_RANDOM_IFLUSH_2,
|
|
XFS_RANDOM_IFLUSH_3,
|
|
XFS_RANDOM_IFLUSH_4,
|
|
XFS_RANDOM_IFLUSH_5,
|
|
XFS_RANDOM_IFLUSH_6,
|
|
XFS_RANDOM_DA_READ_BUF,
|
|
XFS_RANDOM_BTREE_CHECK_LBLOCK,
|
|
XFS_RANDOM_BTREE_CHECK_SBLOCK,
|
|
XFS_RANDOM_ALLOC_READ_AGF,
|
|
XFS_RANDOM_IALLOC_READ_AGI,
|
|
XFS_RANDOM_ITOBP_INOTOBP,
|
|
XFS_RANDOM_IUNLINK,
|
|
XFS_RANDOM_IUNLINK_REMOVE,
|
|
XFS_RANDOM_DIR_INO_VALIDATE,
|
|
XFS_RANDOM_BULKSTAT_READ_CHUNK,
|
|
XFS_RANDOM_IODONE_IOERR,
|
|
XFS_RANDOM_STRATREAD_IOERR,
|
|
XFS_RANDOM_STRATCMPL_IOERR,
|
|
XFS_RANDOM_DIOWRITE_IOERR,
|
|
XFS_RANDOM_BMAPIFORMAT,
|
|
XFS_RANDOM_FREE_EXTENT,
|
|
XFS_RANDOM_RMAP_FINISH_ONE,
|
|
XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE,
|
|
XFS_RANDOM_REFCOUNT_FINISH_ONE,
|
|
XFS_RANDOM_BMAP_FINISH_ONE,
|
|
XFS_RANDOM_AG_RESV_CRITICAL,
|
|
XFS_RANDOM_DROP_WRITES,
|
|
XFS_RANDOM_LOG_BAD_CRC,
|
|
XFS_RANDOM_LOG_ITEM_PIN,
|
|
XFS_RANDOM_BUF_LRU_REF,
|
|
XFS_RANDOM_FORCE_SCRUB_REPAIR,
|
|
XFS_RANDOM_FORCE_SUMMARY_RECALC,
|
|
};
|
|
|
|
struct xfs_errortag_attr {
|
|
struct attribute attr;
|
|
unsigned int tag;
|
|
};
|
|
|
|
static inline struct xfs_errortag_attr *
|
|
to_attr(struct attribute *attr)
|
|
{
|
|
return container_of(attr, struct xfs_errortag_attr, attr);
|
|
}
|
|
|
|
static inline struct xfs_mount *
|
|
to_mp(struct kobject *kobject)
|
|
{
|
|
struct xfs_kobj *kobj = to_kobj(kobject);
|
|
|
|
return container_of(kobj, struct xfs_mount, m_errortag_kobj);
|
|
}
|
|
|
|
STATIC ssize_t
|
|
xfs_errortag_attr_store(
|
|
struct kobject *kobject,
|
|
struct attribute *attr,
|
|
const char *buf,
|
|
size_t count)
|
|
{
|
|
struct xfs_mount *mp = to_mp(kobject);
|
|
struct xfs_errortag_attr *xfs_attr = to_attr(attr);
|
|
int ret;
|
|
unsigned int val;
|
|
|
|
if (strcmp(buf, "default") == 0) {
|
|
val = xfs_errortag_random_default[xfs_attr->tag];
|
|
} else {
|
|
ret = kstrtouint(buf, 0, &val);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
ret = xfs_errortag_set(mp, xfs_attr->tag, val);
|
|
if (ret)
|
|
return ret;
|
|
return count;
|
|
}
|
|
|
|
STATIC ssize_t
|
|
xfs_errortag_attr_show(
|
|
struct kobject *kobject,
|
|
struct attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct xfs_mount *mp = to_mp(kobject);
|
|
struct xfs_errortag_attr *xfs_attr = to_attr(attr);
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n",
|
|
xfs_errortag_get(mp, xfs_attr->tag));
|
|
}
|
|
|
|
static const struct sysfs_ops xfs_errortag_sysfs_ops = {
|
|
.show = xfs_errortag_attr_show,
|
|
.store = xfs_errortag_attr_store,
|
|
};
|
|
|
|
#define XFS_ERRORTAG_ATTR_RW(_name, _tag) \
|
|
static struct xfs_errortag_attr xfs_errortag_attr_##_name = { \
|
|
.attr = {.name = __stringify(_name), \
|
|
.mode = VERIFY_OCTAL_PERMISSIONS(S_IWUSR | S_IRUGO) }, \
|
|
.tag = (_tag), \
|
|
}
|
|
|
|
#define XFS_ERRORTAG_ATTR_LIST(_name) &xfs_errortag_attr_##_name.attr
|
|
|
|
XFS_ERRORTAG_ATTR_RW(noerror, XFS_ERRTAG_NOERROR);
|
|
XFS_ERRORTAG_ATTR_RW(iflush1, XFS_ERRTAG_IFLUSH_1);
|
|
XFS_ERRORTAG_ATTR_RW(iflush2, XFS_ERRTAG_IFLUSH_2);
|
|
XFS_ERRORTAG_ATTR_RW(iflush3, XFS_ERRTAG_IFLUSH_3);
|
|
XFS_ERRORTAG_ATTR_RW(iflush4, XFS_ERRTAG_IFLUSH_4);
|
|
XFS_ERRORTAG_ATTR_RW(iflush5, XFS_ERRTAG_IFLUSH_5);
|
|
XFS_ERRORTAG_ATTR_RW(iflush6, XFS_ERRTAG_IFLUSH_6);
|
|
XFS_ERRORTAG_ATTR_RW(dareadbuf, XFS_ERRTAG_DA_READ_BUF);
|
|
XFS_ERRORTAG_ATTR_RW(btree_chk_lblk, XFS_ERRTAG_BTREE_CHECK_LBLOCK);
|
|
XFS_ERRORTAG_ATTR_RW(btree_chk_sblk, XFS_ERRTAG_BTREE_CHECK_SBLOCK);
|
|
XFS_ERRORTAG_ATTR_RW(readagf, XFS_ERRTAG_ALLOC_READ_AGF);
|
|
XFS_ERRORTAG_ATTR_RW(readagi, XFS_ERRTAG_IALLOC_READ_AGI);
|
|
XFS_ERRORTAG_ATTR_RW(itobp, XFS_ERRTAG_ITOBP_INOTOBP);
|
|
XFS_ERRORTAG_ATTR_RW(iunlink, XFS_ERRTAG_IUNLINK);
|
|
XFS_ERRORTAG_ATTR_RW(iunlinkrm, XFS_ERRTAG_IUNLINK_REMOVE);
|
|
XFS_ERRORTAG_ATTR_RW(dirinovalid, XFS_ERRTAG_DIR_INO_VALIDATE);
|
|
XFS_ERRORTAG_ATTR_RW(bulkstat, XFS_ERRTAG_BULKSTAT_READ_CHUNK);
|
|
XFS_ERRORTAG_ATTR_RW(logiodone, XFS_ERRTAG_IODONE_IOERR);
|
|
XFS_ERRORTAG_ATTR_RW(stratread, XFS_ERRTAG_STRATREAD_IOERR);
|
|
XFS_ERRORTAG_ATTR_RW(stratcmpl, XFS_ERRTAG_STRATCMPL_IOERR);
|
|
XFS_ERRORTAG_ATTR_RW(diowrite, XFS_ERRTAG_DIOWRITE_IOERR);
|
|
XFS_ERRORTAG_ATTR_RW(bmapifmt, XFS_ERRTAG_BMAPIFORMAT);
|
|
XFS_ERRORTAG_ATTR_RW(free_extent, XFS_ERRTAG_FREE_EXTENT);
|
|
XFS_ERRORTAG_ATTR_RW(rmap_finish_one, XFS_ERRTAG_RMAP_FINISH_ONE);
|
|
XFS_ERRORTAG_ATTR_RW(refcount_continue_update, XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE);
|
|
XFS_ERRORTAG_ATTR_RW(refcount_finish_one, XFS_ERRTAG_REFCOUNT_FINISH_ONE);
|
|
XFS_ERRORTAG_ATTR_RW(bmap_finish_one, XFS_ERRTAG_BMAP_FINISH_ONE);
|
|
XFS_ERRORTAG_ATTR_RW(ag_resv_critical, XFS_ERRTAG_AG_RESV_CRITICAL);
|
|
XFS_ERRORTAG_ATTR_RW(drop_writes, XFS_ERRTAG_DROP_WRITES);
|
|
XFS_ERRORTAG_ATTR_RW(log_bad_crc, XFS_ERRTAG_LOG_BAD_CRC);
|
|
XFS_ERRORTAG_ATTR_RW(log_item_pin, XFS_ERRTAG_LOG_ITEM_PIN);
|
|
XFS_ERRORTAG_ATTR_RW(buf_lru_ref, XFS_ERRTAG_BUF_LRU_REF);
|
|
XFS_ERRORTAG_ATTR_RW(force_repair, XFS_ERRTAG_FORCE_SCRUB_REPAIR);
|
|
XFS_ERRORTAG_ATTR_RW(bad_summary, XFS_ERRTAG_FORCE_SUMMARY_RECALC);
|
|
|
|
static struct attribute *xfs_errortag_attrs[] = {
|
|
XFS_ERRORTAG_ATTR_LIST(noerror),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush1),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush2),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush3),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush4),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush5),
|
|
XFS_ERRORTAG_ATTR_LIST(iflush6),
|
|
XFS_ERRORTAG_ATTR_LIST(dareadbuf),
|
|
XFS_ERRORTAG_ATTR_LIST(btree_chk_lblk),
|
|
XFS_ERRORTAG_ATTR_LIST(btree_chk_sblk),
|
|
XFS_ERRORTAG_ATTR_LIST(readagf),
|
|
XFS_ERRORTAG_ATTR_LIST(readagi),
|
|
XFS_ERRORTAG_ATTR_LIST(itobp),
|
|
XFS_ERRORTAG_ATTR_LIST(iunlink),
|
|
XFS_ERRORTAG_ATTR_LIST(iunlinkrm),
|
|
XFS_ERRORTAG_ATTR_LIST(dirinovalid),
|
|
XFS_ERRORTAG_ATTR_LIST(bulkstat),
|
|
XFS_ERRORTAG_ATTR_LIST(logiodone),
|
|
XFS_ERRORTAG_ATTR_LIST(stratread),
|
|
XFS_ERRORTAG_ATTR_LIST(stratcmpl),
|
|
XFS_ERRORTAG_ATTR_LIST(diowrite),
|
|
XFS_ERRORTAG_ATTR_LIST(bmapifmt),
|
|
XFS_ERRORTAG_ATTR_LIST(free_extent),
|
|
XFS_ERRORTAG_ATTR_LIST(rmap_finish_one),
|
|
XFS_ERRORTAG_ATTR_LIST(refcount_continue_update),
|
|
XFS_ERRORTAG_ATTR_LIST(refcount_finish_one),
|
|
XFS_ERRORTAG_ATTR_LIST(bmap_finish_one),
|
|
XFS_ERRORTAG_ATTR_LIST(ag_resv_critical),
|
|
XFS_ERRORTAG_ATTR_LIST(drop_writes),
|
|
XFS_ERRORTAG_ATTR_LIST(log_bad_crc),
|
|
XFS_ERRORTAG_ATTR_LIST(log_item_pin),
|
|
XFS_ERRORTAG_ATTR_LIST(buf_lru_ref),
|
|
XFS_ERRORTAG_ATTR_LIST(force_repair),
|
|
XFS_ERRORTAG_ATTR_LIST(bad_summary),
|
|
NULL,
|
|
};
|
|
|
|
static struct kobj_type xfs_errortag_ktype = {
|
|
.release = xfs_sysfs_release,
|
|
.sysfs_ops = &xfs_errortag_sysfs_ops,
|
|
.default_attrs = xfs_errortag_attrs,
|
|
};
|
|
|
|
int
|
|
xfs_errortag_init(
|
|
struct xfs_mount *mp)
|
|
{
|
|
mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
|
|
KM_SLEEP | KM_MAYFAIL);
|
|
if (!mp->m_errortag)
|
|
return -ENOMEM;
|
|
|
|
return xfs_sysfs_init(&mp->m_errortag_kobj, &xfs_errortag_ktype,
|
|
&mp->m_kobj, "errortag");
|
|
}
|
|
|
|
void
|
|
xfs_errortag_del(
|
|
struct xfs_mount *mp)
|
|
{
|
|
xfs_sysfs_del(&mp->m_errortag_kobj);
|
|
kmem_free(mp->m_errortag);
|
|
}
|
|
|
|
bool
|
|
xfs_errortag_test(
|
|
struct xfs_mount *mp,
|
|
const char *expression,
|
|
const char *file,
|
|
int line,
|
|
unsigned int error_tag)
|
|
{
|
|
unsigned int randfactor;
|
|
|
|
/*
|
|
* To be able to use error injection anywhere, we need to ensure error
|
|
* injection mechanism is already initialized.
|
|
*
|
|
* Code paths like I/O completion can be called before the
|
|
* initialization is complete, but be able to inject errors in such
|
|
* places is still useful.
|
|
*/
|
|
if (!mp->m_errortag)
|
|
return false;
|
|
|
|
ASSERT(error_tag < XFS_ERRTAG_MAX);
|
|
randfactor = mp->m_errortag[error_tag];
|
|
if (!randfactor || prandom_u32() % randfactor)
|
|
return false;
|
|
|
|
xfs_warn_ratelimited(mp,
|
|
"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
|
|
expression, file, line, mp->m_fsname);
|
|
return true;
|
|
}
|
|
|
|
int
|
|
xfs_errortag_get(
|
|
struct xfs_mount *mp,
|
|
unsigned int error_tag)
|
|
{
|
|
if (error_tag >= XFS_ERRTAG_MAX)
|
|
return -EINVAL;
|
|
|
|
return mp->m_errortag[error_tag];
|
|
}
|
|
|
|
int
|
|
xfs_errortag_set(
|
|
struct xfs_mount *mp,
|
|
unsigned int error_tag,
|
|
unsigned int tag_value)
|
|
{
|
|
if (error_tag >= XFS_ERRTAG_MAX)
|
|
return -EINVAL;
|
|
|
|
mp->m_errortag[error_tag] = tag_value;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
xfs_errortag_add(
|
|
struct xfs_mount *mp,
|
|
unsigned int error_tag)
|
|
{
|
|
if (error_tag >= XFS_ERRTAG_MAX)
|
|
return -EINVAL;
|
|
|
|
return xfs_errortag_set(mp, error_tag,
|
|
xfs_errortag_random_default[error_tag]);
|
|
}
|
|
|
|
int
|
|
xfs_errortag_clearall(
|
|
struct xfs_mount *mp)
|
|
{
|
|
memset(mp->m_errortag, 0, sizeof(unsigned int) * XFS_ERRTAG_MAX);
|
|
return 0;
|
|
}
|
|
#endif /* DEBUG */
|
|
|
|
void
|
|
xfs_error_report(
|
|
const char *tag,
|
|
int level,
|
|
struct xfs_mount *mp,
|
|
const char *filename,
|
|
int linenum,
|
|
xfs_failaddr_t failaddr)
|
|
{
|
|
if (level <= xfs_error_level) {
|
|
xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
|
|
"Internal error %s at line %d of file %s. Caller %pS",
|
|
tag, linenum, filename, failaddr);
|
|
|
|
xfs_stack_trace();
|
|
}
|
|
}
|
|
|
|
void
|
|
xfs_corruption_error(
|
|
const char *tag,
|
|
int level,
|
|
struct xfs_mount *mp,
|
|
void *buf,
|
|
size_t bufsize,
|
|
const char *filename,
|
|
int linenum,
|
|
xfs_failaddr_t failaddr)
|
|
{
|
|
if (level <= xfs_error_level)
|
|
xfs_hex_dump(buf, bufsize);
|
|
xfs_error_report(tag, level, mp, filename, linenum, failaddr);
|
|
xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
|
|
}
|
|
|
|
/*
|
|
* Warnings specifically for verifier errors. Differentiate CRC vs. invalid
|
|
* values, and omit the stack trace unless the error level is tuned high.
|
|
*/
|
|
void
|
|
xfs_buf_verifier_error(
|
|
struct xfs_buf *bp,
|
|
int error,
|
|
const char *name,
|
|
void *buf,
|
|
size_t bufsz,
|
|
xfs_failaddr_t failaddr)
|
|
{
|
|
struct xfs_mount *mp = bp->b_target->bt_mount;
|
|
xfs_failaddr_t fa;
|
|
int sz;
|
|
|
|
fa = failaddr ? failaddr : __return_address;
|
|
__xfs_buf_ioerror(bp, error, fa);
|
|
|
|
xfs_alert(mp, "Metadata %s detected at %pS, %s block 0x%llx %s",
|
|
bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
|
|
fa, bp->b_ops->name, bp->b_bn, name);
|
|
|
|
xfs_alert(mp, "Unmount and run xfs_repair");
|
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
|
|
sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
|
|
xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
|
|
sz);
|
|
xfs_hex_dump(buf, sz);
|
|
}
|
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
|
|
xfs_stack_trace();
|
|
}
|
|
|
|
/*
|
|
* Warnings specifically for verifier errors. Differentiate CRC vs. invalid
|
|
* values, and omit the stack trace unless the error level is tuned high.
|
|
*/
|
|
void
|
|
xfs_verifier_error(
|
|
struct xfs_buf *bp,
|
|
int error,
|
|
xfs_failaddr_t failaddr)
|
|
{
|
|
return xfs_buf_verifier_error(bp, error, "", xfs_buf_offset(bp, 0),
|
|
XFS_CORRUPTION_DUMP_LEN, failaddr);
|
|
}
|
|
|
|
/*
|
|
* Warnings for inode corruption problems. Don't bother with the stack
|
|
* trace unless the error level is turned up high.
|
|
*/
|
|
void
|
|
xfs_inode_verifier_error(
|
|
struct xfs_inode *ip,
|
|
int error,
|
|
const char *name,
|
|
void *buf,
|
|
size_t bufsz,
|
|
xfs_failaddr_t failaddr)
|
|
{
|
|
struct xfs_mount *mp = ip->i_mount;
|
|
xfs_failaddr_t fa;
|
|
int sz;
|
|
|
|
fa = failaddr ? failaddr : __return_address;
|
|
|
|
xfs_alert(mp, "Metadata %s detected at %pS, inode 0x%llx %s",
|
|
error == -EFSBADCRC ? "CRC error" : "corruption",
|
|
fa, ip->i_ino, name);
|
|
|
|
xfs_alert(mp, "Unmount and run xfs_repair");
|
|
|
|
if (buf && xfs_error_level >= XFS_ERRLEVEL_LOW) {
|
|
sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
|
|
xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
|
|
sz);
|
|
xfs_hex_dump(buf, sz);
|
|
}
|
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
|
|
xfs_stack_trace();
|
|
}
|