Viewing: lproc_ofd.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* This file provides functions of procfs interface for OBD Filter Device (OFD).
*
* Author: Andreas Dilger <andreas.dilger@intel.com>
* Author: Mikhail Pershin <mike.pershin@intel.com>
* Author: Johann Lombardi <johann.lombardi@intel.com>
* Author: Fan Yong <fan.yong@intel.com>
*/
#define DEBUG_SUBSYSTEM S_CLASS
#include <obd.h>
#include <lprocfs_status.h>
#include <linux/seq_file.h>
#include <lustre_lfsck.h>
#include <uapi/linux/lustre/lustre_access_log.h>
#include <obd_cksum.h>
#include "ofd_internal.h"
#ifdef CONFIG_PROC_FS
/**
* seqs_allocated_show() - Show number of FID allocation sequences.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t seqs_allocated_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return sprintf(buf, "%u\n", ofd->ofd_seq_count);
}
LUSTRE_RO_ATTR(seqs_allocated);
/**
* grant_precreate_show() - Show total number of grants for precreate.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t grant_precreate_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
return sprintf(buf, "%ld\n",
obd->obd_self_export->exp_target_data.ted_grant);
}
LUSTRE_RO_ATTR(grant_precreate);
/**
* precreate_batch_show() - Show number of precreates allowed in a single
* transaction.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t precreate_batch_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return sprintf(buf, "%d\n", ofd->ofd_precreate_batch);
}
/**
* precreate_batch_store() - Change number of precreates allowed in a single
* transaction.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents precreate
* @count: @buffer length
*
* Return:
* * %count on success
* * %negative number on error
*/
static ssize_t precreate_batch_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
if (val < 1 || val > 65536)
return -EINVAL;
spin_lock(&ofd->ofd_batch_lock);
ofd->ofd_precreate_batch = val;
spin_unlock(&ofd->ofd_batch_lock);
return count;
}
LUSTRE_RW_ATTR(precreate_batch);
/**
* atime_diff_show() - Show number of seconds to delay atime
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t atime_diff_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%lld\n", ofd->ofd_atime_diff);
}
/**
* atime_diff_store() - Change number of seconds to delay atime
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents dealy in seconds
* @count: @buffer length
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t atime_diff_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
if (val > 86400)
return -EINVAL;
ofd->ofd_atime_diff = val;
return count;
}
LUSTRE_RW_ATTR(atime_diff);
/**
* last_id_seq_show() - Show the last used ID for each FID sequence used by OFD.
* @m: seq_file handle
* @data: unused for single entry
*
* Return:
* * %0 on success
* * %negative value on error
*/
static int last_id_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct ofd_device *ofd;
struct ofd_seq *oseq = NULL;
if (obd == NULL)
return 0;
ofd = ofd_dev(obd->obd_lu_dev);
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
read_lock(&ofd->ofd_seq_list_lock);
list_for_each_entry(oseq, &ofd->ofd_seq_list, os_list) {
__u64 seq;
seq = ostid_seq(&oseq->os_oi) == 0 ?
fid_idif_seq(ostid_id(&oseq->os_oi),
ofd->ofd_lut.lut_lsd.lsd_osd_index) & ~0xFFFF :
ostid_seq(&oseq->os_oi);
seq_printf(m, DOSTID"\n", seq, ostid_id(&oseq->os_oi));
}
read_unlock(&ofd->ofd_seq_list_lock);
return 0;
}
LDEBUGFS_SEQ_FOPS_RO(last_id);
/**
* degraded_show() - Show if the OFD is in degraded mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Degraded means OFD has a failed drive or is undergoing RAID rebuild.
* The MDS will try to avoid using this OST for new object allocations
* to reduce the impact to global IO performance when clients writing to
* this OST are slowed down. It also reduces the contention on the OST
* RAID device, allowing it to rebuild more quickly.
*
* Returns count of bytes written
*/
static ssize_t degraded_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return sprintf(buf, "%u\n", ofd->ofd_raid_degraded);
}
/**
* degraded_store() - Set OFD to degraded mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents degraded
* @count: @buffer length
*
* This is used to interface to userspace administrative tools for
* the underlying RAID storage, so that they can mark an OST
* as having degraded performance.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t degraded_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_raid_degraded = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(degraded);
/**
* enable_resource_id_check_show() - Show if resource ID checking is enabled
* on the OST.
*
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buf: buffer to write the value to
*
* When enabled, an OST object's UID and GID are checked against
* the nodemap mapping rules.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_check_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
ofd->ofd_lut.lut_enable_resource_id_check);
}
/**
* enable_resource_id_check_store() - Enable or disable resource ID checking
* on the OST.
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buffer: buffer containing the value to set
* @count: length of the buffer
*
* This is used to interface to userspace administrative tools to enable
* or disable resource ID checking on the OST.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_check_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_lut.lut_enable_resource_id_check = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(enable_resource_id_check);
/**
* enable_resource_id_repair_show() - Show if resource ID repair is enabled
* on the OST.
*
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buf: buffer to write the value to
*
* When enabled, an OST object's UID/GID/PROJID are repaired if they are unset.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_repair_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
ofd->ofd_enable_resource_id_repair);
}
/**
* enable_resource_id_repair_store() - Enable or disable resource ID repair
* on the OST.
*
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buffer: buffer containing the value to set
* @count: length of the buffer
*
* This is used to interface to userspace administrative tools to enable
* or disable resource ID repair on the OST.
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t enable_resource_id_repair_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_enable_resource_id_repair = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(enable_resource_id_repair);
/**
* resource_id_repair_queue_count_show() - Show the resource ID repair queue size
*
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buf: buffer to write the value to
*
* Return:
* * %0 on success
* * %negative on failure
*/
static ssize_t resource_id_repair_queue_count_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n",
ofd->ofd_id_repair_queue_count);
}
/**
* resource_id_repair_queue_count_store() - Set resource ID repair queue size
* @kobj: kobject for the OFD device
* @attr: attribute for the OFD device
* @buffer: buffer containing the value to set
* @count: length of the buffer
*
* This is used to interface to userspace administrative tools to set the number
* of queued repair requests.
*
* Return:
* * %0 on success
* * %-ERANGE if the value is out of range must be in
* [1, OFD_ID_REPAIR_QUEUE_COUNT_LIMIT]
* * %negative on failure
*/
static ssize_t resource_id_repair_queue_count_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
struct obd_device *obd =
container_of(kobj, struct obd_device, obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 10, &val);
if (rc)
return rc;
if (val < 1 || val > OFD_ID_REPAIR_QUEUE_COUNT_LIMIT)
return -ERANGE;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_id_repair_queue_count = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(resource_id_repair_queue_count);
/**
* no_create_show() - Show if the OFD is in no precreate mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* This means OFD has been adminstratively disabled at the OST to prevent
* the MDS from creating any new files on the OST, though existing files
* can still be read, written, and unlinked.
*
* Returns number of bytes written
*/
static ssize_t no_create_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", ofd->ofd_lut.lut_no_create);
}
/**
* no_create_store() - Set OFD to no create mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents dealy in seconds
* @count: @buffer length
*
* This is used to interface to userspace administrative tools to
* disable new object creation on the OST.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t no_create_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_lut.lut_no_create = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(no_create);
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 20, 53, 0)
/* compatibility entry for a few releases */
#define no_precreate_show no_create_show
#define no_precreate_store no_create_store
LUSTRE_RW_ATTR(no_precreate);
#endif
/**
* readonly_show() - Show if the OFD is in read-only mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* This means OFD has been adminstratively disabled at the OST to prevent
* writing to the OFD.
*
* Returns number of bytes written
*/
static ssize_t readonly_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", ofd->ofd_readonly);
}
/**
* readonly_store() - Set OFD to readonly mode.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents OST read-only
* @count: @buffer length
*
* This is used to interface to userspace administrative tools to
* set the OST read-only.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t readonly_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_readonly = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(readonly);
/**
* failure_domain_show() - Show the failure domain of the OFD.
* @kobj: Object containing the ODF device.
* @attr: not used.
* @buf: Buffer to write the failure domain to.
*
* Return: number of bytes written to buffer.
*/
static ssize_t failure_domain_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", ofd->ofd_failure_domain);
}
/**
* failure_domain_store() - Set failure domain for the OFD.
* @kobj: Object containing the ODF device.
* @attr: not used.
* @buf: Buffer to write the failure domain to.
* @count: number of bytes in buffer.
*
* This is used to interface to userspace administrative tools to
* set the OST's failure domain.
*
* Return: 0 on success or negative number for failure.
*/
static ssize_t failure_domain_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct lu_env env;
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val, old_val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
old_val = ofd->ofd_failure_domain;
ofd->ofd_failure_domain = val;
spin_unlock(&ofd->ofd_flags_lock);
rc = lu_env_init(&env, LCT_LOCAL);
if (rc)
goto failure;
rc = ofd_failure_domain_write(&env, ofd);
lu_env_fini(&env);
if (rc)
goto failure;
return count;
failure:
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_failure_domain = old_val;
spin_unlock(&ofd->ofd_flags_lock);
return rc;
}
LUSTRE_RW_ATTR(failure_domain);
/**
* fstype_show() - Show OFD filesystem type.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
struct lu_device *d;
LASSERT(ofd->ofd_osd);
d = &ofd->ofd_osd->dd_lu_dev;
LASSERT(d->ld_type);
return sprintf(buf, "%s\n", d->ld_type->ldt_name);
}
LUSTRE_RO_ATTR(fstype);
/**
* sync_journal_show() - Show journal handling mode: synchronous or asynchronous
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* When running in asynchronous mode the journal transactions are not
* committed to disk before the RPC is replied back to the client.
* This will typically improve client performance when only a small number
* of clients are writing, since the client(s) can have more write RPCs
* in flight. However, it also means that the client has to handle recovery
* on bulk RPCs, and will have to keep more dirty pages in cache before they
* are committed on the OST.
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t sync_journal_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return sprintf(buf, "%u\n", ofd->ofd_sync_journal);
}
/**
* sync_journal_store() - Set journal mode to synchronous or asynchronous.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents modes
* 1: synchronous mode
* 0: asynchronous mode
* @count: @buffer length
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t sync_journal_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
rc = kstrtobool(buffer, &val);
if (rc)
return rc;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_sync_journal = val;
ofd_slc_set(ofd);
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(sync_journal);
static ssize_t brw_size_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
return scnprintf(buf, PAGE_SIZE, "%u\n",
ofd->ofd_brw_size / ONE_MB_BRW_SIZE);
}
static ssize_t brw_size_store(struct kobject *kobj, struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
u64 val;
int rc;
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
rc = sysfs_memparse(buffer, count, &val, "MiB");
if (rc < 0)
return rc;
if (val == 0)
return -EINVAL;
if (val > DT_MAX_BRW_SIZE ||
val < (1 << ofd->ofd_lut.lut_tgd.tgd_blockbits))
return -ERANGE;
spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_brw_size = val;
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
LUSTRE_RW_ATTR(brw_size);
/**
* soft_sync_limit_show() - Show the limit of soft sync RPCs.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* This value defines how many IO RPCs with OBD_BRW_SOFT_SYNC flag
* are allowed before sync update will be triggered.
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t soft_sync_limit_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return sprintf(buf, "%u\n", ofd->ofd_soft_sync_limit);
}
/**
* soft_sync_limit_store() - Change the limit of soft sync RPCs.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents dealy in seconds
* @count: @buffer length
*
* Define how many IO RPCs with OBD_BRW_SOFT_SYNC flag
* allowed before sync update will be done.
*
* This limit is global across all exports.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t soft_sync_limit_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc < 0)
return rc;
ofd->ofd_soft_sync_limit = val;
return count;
}
LUSTRE_RW_ATTR(soft_sync_limit);
/**
* lfsck_speed_limit_show() - Show the LFSCK speed limit.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t lfsck_speed_limit_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return lfsck_get_speed(buf, ofd->ofd_osd);
}
/**
* lfsck_speed_limit_store() - Change the LFSCK speed limit.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents speed (e.g., "1000").
* @count: @buffer length
*
* Limit number of items that may be scanned per second.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t lfsck_speed_limit_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int val;
int rc;
rc = kstrtouint(buffer, 0, &val);
if (rc != 0)
return rc;
rc = lfsck_set_speed(ofd->ofd_osd, val);
return rc != 0 ? rc : count;
}
LUSTRE_RW_ATTR(lfsck_speed_limit);
/**
* lfsck_layout_seq_show() - Show LFSCK layout verification stats from the most
* recent LFSCK run.
* @m: seq_file handle
* @data: unused for single entry
*
* Return:
* * %0 on success
* * %negative value on error
*/
static int lfsck_layout_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
return lfsck_dump(m, ofd->ofd_osd, LFSCK_TYPE_LAYOUT);
}
LDEBUGFS_SEQ_FOPS_RO(lfsck_layout);
/**
* lfsck_verify_pfid_seq_show() - Show if LFSCK performed parent FID
* verification.
* @m: seq_file handle
* @data: unused for single entry
*
* Return:
* * %0 on success
* * %negative value on error
*/
static int lfsck_verify_pfid_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
seq_printf(m, "switch: %s\ndetected: %llu\nrepaired: %llu\n",
ofd->ofd_lfsck_verify_pfid ? "on" : "off",
ofd->ofd_inconsistency_self_detected,
ofd->ofd_inconsistency_self_repaired);
return 0;
}
/**
* lfsck_verify_pfid_seq_write() - Set the LFSCK behavior to verify parent FID
* correctness.
* @file: proc file
* @buffer: string which represents behavior
* 1: verify parent FID
* 0: don't verify parent FID
* @count: @buffer length
* @off: unused for single entry
*
* If flag ofd_lfsck_verify_pfid is set then LFSCK does parent FID
* verification during read/write operations.
*
* Return:
* * %@count on success
* * %negative number on error
*/
static ssize_t
lfsck_verify_pfid_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
bool val;
int rc;
if (IS_ERR_OR_NULL(ofd))
return -ENODEV;
rc = kstrtobool_from_user(buffer, count, &val);
if (rc)
return rc;
ofd->ofd_lfsck_verify_pfid = val;
if (!ofd->ofd_lfsck_verify_pfid) {
ofd->ofd_inconsistency_self_detected = 0;
ofd->ofd_inconsistency_self_repaired = 0;
}
return count;
}
LDEBUGFS_SEQ_FOPS(lfsck_verify_pfid);
static ssize_t access_log_mask_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%s%s%s\n",
(ofd->ofd_access_log_mask == 0) ? "0" : "",
(ofd->ofd_access_log_mask & OFD_ACCESS_READ) ? "r" : "",
(ofd->ofd_access_log_mask & OFD_ACCESS_WRITE) ? "w" : "");
}
static ssize_t access_log_mask_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
unsigned int mask = 0;
size_t i;
for (i = 0; i < count; i++) {
switch (tolower(buffer[i])) {
case '0':
break;
case 'r':
mask |= OFD_ACCESS_READ;
break;
case 'w':
mask |= OFD_ACCESS_WRITE;
break;
default:
return -EINVAL;
}
}
ofd->ofd_access_log_mask = mask;
return count;
}
LUSTRE_RW_ATTR(access_log_mask);
static ssize_t access_log_size_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
return scnprintf(buf, PAGE_SIZE, "%u\n", ofd->ofd_access_log_size);
}
static ssize_t access_log_size_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
struct ofd_access_log *oal;
unsigned int size;
ssize_t rc;
rc = kstrtouint(buffer, 0, &size);
if (rc < 0)
return rc;
if (!ofd_access_log_size_is_valid(size))
return -EINVAL;
/* The size of the ofd_access_log cannot be changed after it
* has been created.
*/
if (ofd->ofd_access_log_size == size)
return count;
oal = ofd_access_log_create(obd->obd_name, size);
if (IS_ERR(oal))
return PTR_ERR(oal);
spin_lock(&ofd->ofd_flags_lock);
if (ofd->ofd_access_log != NULL) {
rc = -EBUSY;
} else {
ofd->ofd_access_log = oal;
ofd->ofd_access_log_size = size;
oal = NULL;
rc = count;
}
spin_unlock(&ofd->ofd_flags_lock);
ofd_access_log_delete(oal);
return rc;
}
LUSTRE_RW_ATTR(access_log_size);
static int site_stats_seq_show(struct seq_file *m, void *data)
{
struct obd_device *obd = m->private;
return lu_site_stats_seq_print(obd->obd_lu_dev->ld_site, m);
}
LDEBUGFS_SEQ_FOPS_RO(site_stats);
/**
* checksum_t10pi_enforce_show() - Show if the OFD enforces T10PI checksum.
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buf: buffer where the output string will be written [out]
*
* Return:
* * %0 on success
* * %negative value on error
*/
static ssize_t checksum_t10pi_enforce_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *lut = obd2obt(obd)->obt_lut;
return scnprintf(buf, PAGE_SIZE, "%u\n", lut->lut_cksum_t10pi_enforce);
}
/**
* checksum_t10pi_enforce_store() - Force specific T10PI checksum modes to be
* enabled
* @kobj: Kernel object (OFD device)
* @attr: Pointer to struct attribute
* @buffer: string which represents mode
* 1: set T10PI checksums enforced
* 0: unset T10PI checksums enforced
* @count: @buffer length
*
* If T10PI *is* supported in hardware, allow only the supported T10PI type
* to be used. If T10PI is *not* supported by the OSD, setting the enforce
* parameter forces all T10PI types to be enabled (even if slower) for
* testing.
*
* The final determination of which algorithm to be used depends whether
* the client supports T10PI or not, and is handled at client connect time.
*
* Return:
* * %count on success
* * %negative number on error
*/
static ssize_t checksum_t10pi_enforce_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer, size_t count)
{
struct obd_device *obd = container_of(kobj, struct obd_device,
obd_kset.kobj);
struct lu_target *lut = obd2obt(obd)->obt_lut;
bool enforce;
int rc;
rc = kstrtobool(buffer, &enforce);
if (rc)
return rc;
spin_lock(&lut->lut_flags_lock);
lut->lut_cksum_t10pi_enforce = enforce;
spin_unlock(&lut->lut_flags_lock);
return count;
}
LUSTRE_RW_ATTR(checksum_t10pi_enforce);
LUSTRE_RW_ATTR(recovery_time_hard);
LUSTRE_RW_ATTR(recovery_time_soft);
LUSTRE_RW_ATTR(ir_factor);
LUSTRE_WO_ATTR(evict_client);
LUSTRE_ATTR(checksum_dump, 0644, dt_checksum_dump_show, dt_checksum_dump_store);
LUSTRE_ATTR(checksum_type, 0444, dt_checksum_type_show, NULL);
LUSTRE_RW_ATTR(job_cleanup_interval);
LUSTRE_RO_ATTR(tot_dirty);
LUSTRE_RO_ATTR(tot_granted);
LUSTRE_RO_ATTR(tot_pending);
LUSTRE_RW_ATTR(grant_compat_disable);
LUSTRE_RO_ATTR(instance);
LUSTRE_RO_ATTR(num_exports);
LUSTRE_RW_ATTR(grant_check_threshold);
LUSTRE_RO_ATTR(eviction_count);
LDEBUGFS_SEQ_FOPS_RO_TYPE(ofd, recovery_status);
LDEBUGFS_SEQ_FOPS_RO_TYPE(ofd, recovery_stale_clients);
static struct ldebugfs_vars ldebugfs_ofd_obd_vars[] = {
{ .name = "last_id",
.fops = &last_id_fops },
{ .name = "lfsck_layout",
.fops = &lfsck_layout_fops },
{ .name = "lfsck_verify_pfid",
.fops = &lfsck_verify_pfid_fops },
{ .name = "recovery_status",
.fops = &ofd_recovery_status_fops },
{ .name = "recovery_stale_clients",
.fops = &ofd_recovery_stale_clients_fops},
{ .name = "site_stats",
.fops = &site_stats_fops },
{ NULL }
};
LDEBUGFS_SEQ_FOPS_RO_TYPE(ofd, srpc_serverctx);
static struct ldebugfs_vars ldebugfs_ofd_gss_vars[] = {
{ .name = "srpc_serverctx",
.fops = &ofd_srpc_serverctx_fops },
{ NULL }
};
/**
* ofd_stats_counter_init() - Initialize OFD statistics counters
* @stats: statistics counters
* @offset:
* @cntr_umask:
*/
void ofd_stats_counter_init(struct lprocfs_stats *stats, unsigned int offset,
enum lprocfs_counter_config cntr_umask)
{
LASSERT(stats && stats->ls_num >= LPROC_OFD_STATS_LAST);
lprocfs_counter_init(stats, LPROC_OFD_STATS_READ_BYTES,
LPROCFS_TYPE_BYTES_FULL_HISTOGRAM & (~cntr_umask),
"read_bytes");
lprocfs_counter_init(stats, LPROC_OFD_STATS_WRITE_BYTES,
LPROCFS_TYPE_BYTES_FULL_HISTOGRAM & (~cntr_umask),
"write_bytes");
lprocfs_counter_init(stats, LPROC_OFD_STATS_READ,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "read");
lprocfs_counter_init(stats, LPROC_OFD_STATS_WRITE,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "write");
lprocfs_counter_init(stats, LPROC_OFD_STATS_GETATTR,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "getattr");
lprocfs_counter_init(stats, LPROC_OFD_STATS_SETATTR,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "setattr");
lprocfs_counter_init(stats, LPROC_OFD_STATS_PUNCH,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "punch");
lprocfs_counter_init(stats, LPROC_OFD_STATS_SYNC,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "sync");
lprocfs_counter_init(stats, LPROC_OFD_STATS_DESTROY,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "destroy");
lprocfs_counter_init(stats, LPROC_OFD_STATS_CREATE,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "create");
lprocfs_counter_init(stats, LPROC_OFD_STATS_STATFS,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "statfs");
lprocfs_counter_init(stats, LPROC_OFD_STATS_GET_INFO,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "get_info");
lprocfs_counter_init(stats, LPROC_OFD_STATS_SET_INFO,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "set_info");
lprocfs_counter_init(stats, LPROC_OFD_STATS_QUOTACTL,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "quotactl");
lprocfs_counter_init(stats, LPROC_OFD_STATS_PREALLOC,
LPROCFS_TYPE_LATENCY & (~cntr_umask), "prealloc");
}
/* belongs to export directory */
LDEBUGFS_SEQ_FOPS_RW_TYPE(ofd, nid_stats_clear);
LUSTRE_OBD_UINT_PARAM_ATTR(at_min);
LUSTRE_OBD_UINT_PARAM_ATTR(at_max);
LUSTRE_OBD_UINT_PARAM_ATTR(at_history);
LUSTRE_OBD_UINT_PARAM_ATTR(ldlm_enqueue_min);
static struct attribute *ofd_attrs[] = {
&lustre_attr_access_log_mask.attr,
&lustre_attr_access_log_size.attr,
&lustre_attr_atime_diff.attr,
&lustre_attr_at_history.attr,
&lustre_attr_at_max.attr,
&lustre_attr_at_min.attr,
&lustre_attr_brw_size.attr,
&lustre_attr_checksum_dump.attr,
&lustre_attr_checksum_t10pi_enforce.attr,
&lustre_attr_checksum_type.attr,
&lustre_attr_degraded.attr,
&lustre_attr_enable_resource_id_check.attr,
&lustre_attr_enable_resource_id_repair.attr,
&lustre_attr_evict_client.attr,
&lustre_attr_eviction_count.attr,
&lustre_attr_failure_domain.attr,
&lustre_attr_fstype.attr,
&lustre_attr_grant_check_threshold.attr,
&lustre_attr_grant_compat_disable.attr,
&lustre_attr_grant_precreate.attr,
&lustre_attr_instance.attr,
&lustre_attr_ir_factor.attr,
&lustre_attr_job_cleanup_interval.attr,
&lustre_attr_lfsck_speed_limit.attr,
&lustre_attr_no_create.attr,
#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 20, 53, 0)
&lustre_attr_no_precreate.attr,
#endif
&lustre_attr_num_exports.attr,
&lustre_attr_precreate_batch.attr,
&lustre_attr_readonly.attr,
&lustre_attr_recovery_time_hard.attr,
&lustre_attr_recovery_time_soft.attr,
&lustre_attr_resource_id_repair_queue_count.attr,
&lustre_attr_seqs_allocated.attr,
&lustre_attr_tot_dirty.attr,
&lustre_attr_tot_granted.attr,
&lustre_attr_tot_pending.attr,
&lustre_attr_soft_sync_limit.attr,
&lustre_attr_sync_journal.attr,
&lustre_attr_ldlm_enqueue_min.attr,
NULL,
};
ATTRIBUTE_GROUPS(ofd); /* creates ofd_groups from ofd_attrs */
/**
* ofd_tunables_init() - Initialize all needed procfs entries for OFD device.
* @ofd: OFD device
*
* Return:
* * %0 if successful
* * %negative value on error
*/
int ofd_tunables_init(struct ofd_device *ofd)
{
struct obd_device *obd = ofd_obd(ofd);
int rc = 0;
ENTRY;
/* lprocfs must be setup before the ofd so state can be safely added
* to /proc incrementally as the ofd is setup
*/
obd->obd_ktype.default_groups = ofd_groups;
obd->obd_debugfs_vars = ldebugfs_ofd_obd_vars;
rc = lprocfs_obd_setup(obd, false);
if (rc) {
CERROR("%s: lprocfs_obd_setup failed: %d.\n",
obd->obd_name, rc);
RETURN(rc);
}
rc = tgt_tunables_init(&ofd->ofd_lut);
if (rc) {
CERROR("%s: tgt_tunables_init failed: rc = %d\n",
obd->obd_name, rc);
GOTO(obd_cleanup, rc);
}
rc = ldebugfs_alloc_obd_stats(obd, LPROC_OFD_STATS_LAST);
if (rc) {
CERROR("%s: lprocfs_alloc_obd_stats failed: %d.\n",
obd->obd_name, rc);
GOTO(tgt_cleanup, rc);
}
obd->obd_debugfs_gss_dir = debugfs_create_dir("gss",
obd->obd_debugfs_entry);
if (IS_ERR(obd->obd_debugfs_gss_dir))
obd->obd_debugfs_gss_dir = NULL;
ldebugfs_add_vars(obd->obd_debugfs_gss_dir,
ldebugfs_ofd_gss_vars, obd);
obd->obd_debugfs_exports = debugfs_create_dir("exports",
obd->obd_debugfs_entry);
if (IS_ERR(obd->obd_debugfs_exports))
obd->obd_debugfs_exports = NULL;
debugfs_create_file("clear", 0644, obd->obd_debugfs_exports,
obd, &ofd_nid_stats_clear_fops);
ofd_stats_counter_init(obd->obd_stats, 0, LPROCFS_CNTR_HISTOGRAM);
rc = lprocfs_job_stats_init(obd, LPROC_OFD_STATS_LAST,
ofd_stats_counter_init);
if (rc)
GOTO(obd_free_stats, rc);
RETURN(0);
obd_free_stats:
ldebugfs_free_obd_stats(obd);
tgt_cleanup:
tgt_tunables_fini(&ofd->ofd_lut);
obd_cleanup:
lprocfs_obd_cleanup(obd);
return rc;
}
#endif /* CONFIG_PROC_FS */
