*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2012, 2014 Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/ofd/lproc_ofd.c
+ *
+ * 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 "ofd_internal.h"
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
-static int lprocfs_ofd_rd_groups(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show number of FID allocation sequences.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_seqs_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = (struct obd_device *)data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%u\n", ofd->ofd_max_group);
+ seq_printf(m, "%u\n", ofd->ofd_seq_count);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_seqs);
-static int lprocfs_ofd_rd_last_id(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show estimate of total amount of dirty data on clients.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_tot_dirty_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int retval = 0, rc, i;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd;
- if (obd == NULL)
- return 0;
+ LASSERT(obd != NULL);
+ ofd = ofd_dev(obd->obd_lu_dev);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_dirty);
+ return 0;
+}
+LPROC_SEQ_FOPS_RO(ofd_tot_dirty);
- for (i = FID_SEQ_OST_MDT0; i <= ofd->ofd_max_group; i++) {
- rc = snprintf(page, count, LPU64"\n", ofd_last_id(ofd, i));
- if (rc < 0) {
- retval = rc;
- break;
- }
- page += rc;
- count -= rc;
- retval += rc;
- }
- return retval;
+/**
+ * Show total amount of space granted to clients.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_tot_granted_seq_show(struct seq_file *m, void *data)
+{
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd;
+
+ LASSERT(obd != NULL);
+ ofd = ofd_dev(obd->obd_lu_dev);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_granted);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_tot_granted);
-int lprocfs_ofd_rd_fmd_max_num(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show total amount of space used by IO in progress.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_tot_pending_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd;
+
+ LASSERT(obd != NULL);
+ ofd = ofd_dev(obd->obd_lu_dev);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_pending);
+ return 0;
+}
+LPROC_SEQ_FOPS_RO(ofd_tot_pending);
+
+/**
+ * Show total number of grants for precreate.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_grant_precreate_seq_show(struct seq_file *m, void *data)
+{
+ struct obd_device *obd = m->private;
- rc = snprintf(page, count, "%u\n", ofd->ofd_fmd_max_num);
- return rc;
+ LASSERT(obd != NULL);
+ seq_printf(m, "%ld\n",
+ obd->obd_self_export->exp_filter_data.fed_grant);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_grant_precreate);
-int lprocfs_ofd_wr_fmd_max_num(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Show number of precreates allowed in a single transaction.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_precreate_batch_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val;
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd;
- rc = lprocfs_write_helper(buffer, count, &val);
+ LASSERT(obd != NULL);
+ ofd = ofd_dev(obd->obd_lu_dev);
+ seq_printf(m, "%d\n", ofd->ofd_precreate_batch);
+ return 0;
+}
+
+/**
+ * Change number of precreates allowed in a single transaction.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents maximum number
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_precreate_batch_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);
+ __s64 val;
+ int rc;
+
+ rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
- if (val > 65536 || val < 1)
+ if (val < 1 || val > INT_MAX)
return -EINVAL;
- ofd->ofd_fmd_max_num = val;
+ spin_lock(&ofd->ofd_batch_lock);
+ ofd->ofd_precreate_batch = val;
+ spin_unlock(&ofd->ofd_batch_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_precreate_batch);
-int lprocfs_ofd_rd_fmd_max_age(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show the last used ID for each FID sequence used by OFD.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_last_id_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd;
+ struct ofd_seq *oseq = NULL;
+
+ if (obd == NULL)
+ return 0;
- rc = snprintf(page, count, "%ld\n", ofd->ofd_fmd_max_age / CFS_HZ);
- return rc;
+ ofd = ofd_dev(obd->obd_lu_dev);
+
+ 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) :
+ 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;
}
+LPROC_SEQ_FOPS_RO(ofd_last_id);
-int lprocfs_ofd_wr_fmd_max_age(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Show maximum number of Filter Modification Data (FMD) maintained by OFD.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_fmd_max_num_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val;
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+
+ seq_printf(m, "%u\n", ofd->ofd_fmd_max_num);
+ return 0;
+}
- rc = lprocfs_write_helper(buffer, count, &val);
+/**
+ * Change number of FMDs maintained by OFD.
+ *
+ * This defines how large the list of FMDs can be.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents maximum number
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_fmd_max_num_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);
+ __s64 val;
+ int rc;
+
+ rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
if (val > 65536 || val < 1)
return -EINVAL;
- ofd->ofd_fmd_max_age = val * CFS_HZ;
+ ofd->ofd_fmd_max_num = val;
return count;
}
+LPROC_SEQ_FOPS(ofd_fmd_max_num);
-static int lprocfs_ofd_rd_capa(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show the maximum age of FMD data in seconds.
+ *
+ * Though it is shown in seconds, it is stored internally in units
+ * of jiffies for efficiency.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_fmd_max_age_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- rc = snprintf(page, count, "capability on: %s\n",
- obd->u.filter.fo_fl_oss_capa ? "oss" : "");
- return rc;
+ seq_printf(m, "%ld\n", jiffies_to_msecs(ofd->ofd_fmd_max_age) /
+ MSEC_PER_SEC);
+ return 0;
}
-static int lprocfs_ofd_wr_capa(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set the maximum age of FMD data in seconds.
+ *
+ * This defines how long FMD data stays in the FMD list.
+ * It is stored internally in units of jiffies for efficiency.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents maximum number
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_fmd_max_age_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- int val, rc;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ __s64 val;
+ int rc;
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
- if (val & ~0x1) {
- CERROR("invalid capability mode, only 0/1 are accepted.\n"
- " 1: enable oss fid capability\n"
- " 0: disable oss fid capability\n");
+ if (val > 65536 || val < 1)
return -EINVAL;
- }
- obd->u.filter.fo_fl_oss_capa = val;
- LCONSOLE_INFO("OSS %s %s fid capability.\n", obd->obd_name,
- val ? "enabled" : "disabled");
+ ofd->ofd_fmd_max_age = msecs_to_jiffies(val * MSEC_PER_SEC);
return count;
}
+LPROC_SEQ_FOPS(ofd_fmd_max_age);
-static int lprocfs_ofd_rd_capa_count(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- return snprintf(page, count, "%d %d\n",
- capa_count[CAPA_SITE_CLIENT],
- capa_count[CAPA_SITE_SERVER]);
-}
-
-int lprocfs_ofd_rd_degraded(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show if the OFD is in degraded mode.
+ *
+ * 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.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_degraded_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return snprintf(page, count, "%u\n", ofd->ofd_raid_degraded);
+ seq_printf(m, "%u\n", ofd->ofd_raid_degraded);
+ return 0;
}
-int lprocfs_ofd_wr_degraded(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set OFD to degraded mode.
+ *
+ * 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.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents mode
+ * 1: set degraded mode
+ * 0: unset degraded mode
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_degraded_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val, rc;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ int rc;
+ __s64 val;
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
- cfs_spin_lock(&ofd->ofd_flags_lock);
+ spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_raid_degraded = !!val;
- cfs_spin_unlock(&ofd->ofd_flags_lock);
-
+ spin_unlock(&ofd->ofd_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_degraded);
-int lprocfs_ofd_rd_fstype(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show OFD filesystem type.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_fstype_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
+ struct obd_device *obd = m->private;
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 snprintf(page, count, "%s\n", d->ld_type->ldt_name);
+ seq_printf(m, "%s\n", d->ld_type->ldt_name);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_fstype);
-int lprocfs_ofd_rd_syncjournal(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show journal handling mode: synchronous or asynchronous.
+ *
+ * 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.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_syncjournal_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
- rc = snprintf(page, count, "%u\n", ofd->ofd_syncjournal);
- return rc;
+ seq_printf(m, "%u\n", ofd->ofd_syncjournal);
+ return 0;
}
-int lprocfs_ofd_wr_syncjournal(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set journal mode to synchronous or asynchronous.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents mode
+ * 1: synchronous mode
+ * 0: asynchronous mode
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_syncjournal_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val;
- int rc;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ __s64 val;
+ int rc;
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
if (val < 0)
return -EINVAL;
- cfs_spin_lock(&ofd->ofd_flags_lock);
+ spin_lock(&ofd->ofd_flags_lock);
ofd->ofd_syncjournal = !!val;
ofd_slc_set(ofd);
- cfs_spin_unlock(&ofd->ofd_flags_lock);
+ spin_unlock(&ofd->ofd_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_syncjournal);
+
+/* This must be longer than the longest string below */
+#define SYNC_STATES_MAXLEN 16
+
+static int ofd_brw_size_seq_show(struct seq_file *m, void *data)
+{
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+
+ seq_printf(m, "%u\n", ofd->ofd_brw_size / ONE_MB_BRW_SIZE);
+ return 0;
+}
+
+static ssize_t
+ofd_brw_size_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);
+ __s64 val;
+ int rc;
+
+ rc = lprocfs_str_to_s64(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val < 0)
+ return -EINVAL;
+
+ val = val * ONE_MB_BRW_SIZE;
+ if (val <= 0 || val > DT_MAX_BRW_SIZE ||
+ val < (1 << ofd->ofd_blockbits))
+ return -ERANGE;
+
+ spin_lock(&ofd->ofd_flags_lock);
+ ofd->ofd_brw_size = val;
+ spin_unlock(&ofd->ofd_flags_lock);
+
+ return count;
+}
+LPROC_SEQ_FOPS(ofd_brw_size);
static char *sync_on_cancel_states[] = {"never",
"blocking",
"always" };
-int lprocfs_ofd_rd_sync_lock_cancel(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show OFD policy for handling dirty data under a lock being cancelled.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_sync_lock_cancel_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
+ struct obd_device *obd = m->private;
+ struct lu_target *tgt = obd->u.obt.obt_lut;
- rc = snprintf(page, count, "%s\n",
- sync_on_cancel_states[ofd->ofd_sync_lock_cancel]);
- return rc;
+ seq_printf(m, "%s\n",
+ sync_on_cancel_states[tgt->lut_sync_lock_cancel]);
+ return 0;
}
-int lprocfs_ofd_wr_sync_lock_cancel(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Change OFD policy for handling dirty data under a lock being cancelled.
+ *
+ * This variable defines what action OFD takes upon lock cancel
+ * There are three possible modes:
+ * 1) never - never do sync upon lock cancel. This can lead to data
+ * inconsistencies if both the OST and client crash while writing a file
+ * that is also concurrently being read by another client. In these cases,
+ * this may allow the file data to "rewind" to an earlier state.
+ * 2) blocking - do sync only if there is blocking lock, e.g. if another
+ * client is trying to access this same object
+ * 3) always - do sync always
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents policy
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_sync_lock_cancel_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val = -1;
- int i;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct lu_target *tgt = obd->u.obt.obt_lut;
+ char kernbuf[SYNC_STATES_MAXLEN];
+ __s64 val = -1;
+ int i;
+
+ if (count == 0 || count >= sizeof(kernbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+ kernbuf[count] = 0;
+
+ if (kernbuf[count - 1] == '\n')
+ kernbuf[count - 1] = 0;
for (i = 0 ; i < NUM_SYNC_ON_CANCEL_STATES; i++) {
- if (memcmp(buffer, sync_on_cancel_states[i],
- strlen(sync_on_cancel_states[i])) == 0) {
+ if (strcmp(kernbuf, sync_on_cancel_states[i]) == 0) {
val = i;
break;
}
}
- if (val == -1) {
- int rc;
- rc = lprocfs_write_helper(buffer, count, &val);
+ /* Legacy numeric codes */
+ if (val == -1) {
+ int rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
}
if (val < 0 || val > 2)
return -EINVAL;
- cfs_spin_lock(&ofd->ofd_flags_lock);
- ofd->ofd_sync_lock_cancel = val;
- cfs_spin_unlock(&ofd->ofd_flags_lock);
+ spin_lock(&tgt->lut_flags_lock);
+ tgt->lut_sync_lock_cancel = val;
+ spin_unlock(&tgt->lut_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_sync_lock_cancel);
-static struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
- { "blocksize", lprocfs_rd_blksize, 0, 0 },
- { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
- { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
- { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
- { "filestotal", lprocfs_rd_filestotal, 0, 0 },
- { "filesfree", lprocfs_rd_filesfree, 0, 0 },
- { "filegroups", lprocfs_ofd_rd_groups, 0, 0 },
- { "fstype", lprocfs_ofd_rd_fstype, 0, 0 },
- { "last_id", lprocfs_ofd_rd_last_id, 0, 0 },
- { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
- { "recovery_time_soft", lprocfs_obd_rd_recovery_time_soft,
- lprocfs_obd_wr_recovery_time_soft, 0},
- { "recovery_time_hard", lprocfs_obd_rd_recovery_time_hard,
- lprocfs_obd_wr_recovery_time_hard, 0},
- { "evict_client", 0, lprocfs_wr_evict_client, 0,
- &lprocfs_evict_client_fops},
- { "num_exports", lprocfs_rd_num_exports, 0, 0 },
- { "degraded", lprocfs_ofd_rd_degraded,
- lprocfs_ofd_wr_degraded, 0},
- { "sync_journal", lprocfs_ofd_rd_syncjournal,
- lprocfs_ofd_wr_syncjournal, 0 },
- { "sync_on_lock_cancel", lprocfs_ofd_rd_sync_lock_cancel,
- lprocfs_ofd_wr_sync_lock_cancel, 0 },
- { "instance", lprocfs_target_rd_instance, 0 },
- { "ir_factor", lprocfs_obd_rd_ir_factor,
- lprocfs_obd_wr_ir_factor, 0},
- { "client_cache_count", lprocfs_ofd_rd_fmd_max_num,
- lprocfs_ofd_wr_fmd_max_num, 0 },
- { "client_cache_seconds", lprocfs_ofd_rd_fmd_max_age,
- lprocfs_ofd_wr_fmd_max_age, 0 },
- { "capa", lprocfs_ofd_rd_capa,
- lprocfs_ofd_wr_capa, 0 },
- { "capa_count", lprocfs_ofd_rd_capa_count, 0, 0 },
- { 0 }
-};
-
-static struct lprocfs_vars lprocfs_ofd_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
-};
+/**
+ * Show if grants compatibility mode is disabled.
+ *
+ * When ofd_grant_compat_disable is set, we don't grant any space to clients
+ * not supporting OBD_CONNECT_GRANT_PARAM. Otherwise, space granted to such
+ * a client is inflated since it consumes PAGE_CACHE_SIZE of grant space per
+ * block, (i.e. typically 4kB units), but underlaying file system might have
+ * block size bigger than page size, e.g. ZFS. See LU-2049 for details.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_grant_compat_disable_seq_show(struct seq_file *m, void *data)
+{
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
-#define pct(a,b) (b ? a * 100 / b : 0)
-
-static void display_brw_stats(struct seq_file *seq, char *name, char *units,
- struct obd_histogram *read,
- struct obd_histogram *write, int log2)
-{
- unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
- int i;
-
- seq_printf(seq, "\n%26s read | write\n", " ");
- seq_printf(seq, "%-22s %-5s %% cum %% | %-5s %% cum %%\n",
- name, units, units);
-
- read_tot = lprocfs_oh_sum(read);
- write_tot = lprocfs_oh_sum(write);
- for (i = 0; i < OBD_HIST_MAX; i++) {
- r = read->oh_buckets[i];
- w = write->oh_buckets[i];
- read_cum += r;
- write_cum += w;
- if (read_cum == 0 && write_cum == 0)
- continue;
-
- if (!log2)
- seq_printf(seq, "%u", i);
- else if (i < 10)
- seq_printf(seq, "%u", 1 << i);
- else if (i < 20)
- seq_printf(seq, "%uK", 1 << (i - 10));
- else
- seq_printf(seq, "%uM", 1 << (i - 20));
-
- seq_printf(seq, ":\t\t%10lu %3lu %3lu | %4lu %3lu %3lu\n",
- r, pct(r, read_tot), pct(read_cum, read_tot),
- w, pct(w, write_tot), pct(write_cum, write_tot));
-
- if (read_cum == read_tot && write_cum == write_tot)
- break;
- }
+ seq_printf(m, "%u\n", ofd->ofd_grant_compat_disable);
+ return 0;
}
-static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
+/**
+ * Change grant compatibility mode.
+ *
+ * Setting ofd_grant_compat_disable prohibit any space granting to clients
+ * not supporting OBD_CONNECT_GRANT_PARAM. See details above.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents mode
+ * 1: disable compatibility mode
+ * 0: enable compatibility mode
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_grant_compat_disable_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct timeval now;
- char title[24];
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ __s64 val;
+ int rc;
- /* this sampling races with updates */
- cfs_gettimeofday(&now);
- seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
- now.tv_sec, now.tv_usec);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
+ if (rc)
+ return rc;
- display_brw_stats(seq, "pages per bulk r/w", "rpcs",
- &brw_stats->hist[BRW_R_PAGES],
- &brw_stats->hist[BRW_W_PAGES], 1);
+ if (val < 0)
+ return -EINVAL;
- display_brw_stats(seq, "discontiguous pages", "rpcs",
- &brw_stats->hist[BRW_R_DISCONT_PAGES],
- &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
+ spin_lock(&ofd->ofd_flags_lock);
+ ofd->ofd_grant_compat_disable = !!val;
+ spin_unlock(&ofd->ofd_flags_lock);
- display_brw_stats(seq, "discontiguous blocks", "rpcs",
- &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
- &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
+ return count;
+}
+LPROC_SEQ_FOPS(ofd_grant_compat_disable);
- display_brw_stats(seq, "disk fragmented I/Os", "ios",
- &brw_stats->hist[BRW_R_DIO_FRAGS],
- &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
+/**
+ * Show the limit of soft sync RPCs.
+ *
+ * This value defines how many IO RPCs with OBD_BRW_SOFT_SYNC flag
+ * are allowed before sync update will be triggered.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_soft_sync_limit_seq_show(struct seq_file *m, void *data)
+{
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- display_brw_stats(seq, "disk I/Os in flight", "ios",
- &brw_stats->hist[BRW_R_RPC_HIST],
- &brw_stats->hist[BRW_W_RPC_HIST], 0);
+ return lprocfs_uint_seq_show(m, &ofd->ofd_soft_sync_limit);
+}
- sprintf(title, "I/O time (1/%ds)", CFS_HZ);
- display_brw_stats(seq, title, "ios",
- &brw_stats->hist[BRW_R_IO_TIME],
- &brw_stats->hist[BRW_W_IO_TIME], 1);
+/**
+ * Change the limit of soft sync RPCs.
+ *
+ * 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.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents limit
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_soft_sync_limit_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);
- display_brw_stats(seq, "disk I/O size", "ios",
- &brw_stats->hist[BRW_R_DISK_IOSIZE],
- &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
+ return lprocfs_uint_seq_write(file, buffer, count,
+ (loff_t *) &ofd->ofd_soft_sync_limit);
}
+LPROC_SEQ_FOPS(ofd_soft_sync_limit);
-#undef pct
-
-static int ofd_brw_stats_seq_show(struct seq_file *seq, void *v)
+/**
+ * Show the LFSCK speed limit.
+ *
+ * The maximum number of items scanned per second.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_lfsck_speed_limit_seq_show(struct seq_file *m, void *data)
{
- struct obd_device *dev = seq->private;
- struct filter_obd *ofd = &dev->u.filter;
-
- brw_stats_show(seq, &ofd->fo_filter_stats);
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return 0;
+ return lfsck_get_speed(m, ofd->ofd_osd);
}
-static ssize_t ofd_brw_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+/**
+ * Change the LFSCK speed limit.
+ *
+ * Limit number of items that may be scanned per second.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents limit
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_lfsck_speed_limit_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct obd_device *dev = seq->private;
- struct filter_obd *ofd = &dev->u.filter;
- int i;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ __s64 val;
+ int rc;
- for (i = 0; i < BRW_LAST; i++)
- lprocfs_oh_clear(&ofd->fo_filter_stats.hist[i]);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
+ if (rc != 0)
+ return rc;
- return len;
-}
+ if (val < 0)
+ return -ERANGE;
+
+ rc = lfsck_set_speed(ofd->ofd_osd, val);
-LPROC_SEQ_FOPS(ofd_brw_stats);
+ return rc != 0 ? rc : count;
+}
+LPROC_SEQ_FOPS(ofd_lfsck_speed_limit);
-int lproc_ofd_attach_seqstat(struct obd_device *dev)
+/**
+ * Show LFSCK layout verification stats from the most recent LFSCK run.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_lfsck_layout_seq_show(struct seq_file *m, void *data)
{
- return lprocfs_obd_seq_create(dev, "brw_stats", 0444,
- &ofd_brw_stats_fops, dev);
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+
+ return lfsck_dump(m, ofd->ofd_osd, LFSCK_TYPE_LAYOUT);
}
+LPROC_SEQ_FOPS_RO(ofd_lfsck_layout);
-void lprocfs_ofd_init_vars(struct lprocfs_static_vars *lvars)
+/**
+ * Show if LFSCK performed parent FID verification.
+ *
+ * \param[in] m seq_file handle
+ * \param[in] data unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative value on error
+ */
+static int ofd_lfsck_verify_pfid_seq_show(struct seq_file *m, void *data)
{
- lvars->module_vars = lprocfs_ofd_module_vars;
- lvars->obd_vars = lprocfs_ofd_obd_vars;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+
+ seq_printf(m, "switch: %s\ndetected: "LPU64"\nrepaired: "LPU64"\n",
+ ofd->ofd_lfsck_verify_pfid ? "on" : "off",
+ ofd->ofd_inconsistency_self_detected,
+ ofd->ofd_inconsistency_self_repaired);
+ return 0;
}
-static int ofd_per_nid_stats_seq_show(struct seq_file *seq, void *v)
+/**
+ * Set the LFSCK behavior to verify parent FID correctness.
+ *
+ * If flag ofd_lfsck_verify_pfid is set then LFSCK does parent FID
+ * verification during read/write operations.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which represents behavior
+ * 1: verify parent FID
+ * 0: don't verify parent FID
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval \a count on success
+ * \retval negative number on error
+ */
+static ssize_t
+ofd_lfsck_verify_pfid_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- nid_stat_t *stat = seq->private;
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ __s64 val;
+ int rc;
- if (stat->nid_brw_stats)
- brw_stats_show(seq, stat->nid_brw_stats);
+ rc = lprocfs_str_to_s64(buffer, count, &val);
+ if (rc != 0)
+ return rc;
- return 0;
+ ofd->ofd_lfsck_verify_pfid = !!val;
+
+ return count;
}
+LPROC_SEQ_FOPS(ofd_lfsck_verify_pfid);
-static ssize_t ofd_per_nid_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+static int ofd_site_stats_seq_show(struct seq_file *m, void *data)
{
- struct seq_file *seq = file->private_data;
- nid_stat_t *stat = seq->private;
- int i;
+ struct obd_device *obd = m->private;
- if (stat->nid_brw_stats)
- for (i = 0; i < BRW_LAST; i++)
- lprocfs_oh_clear(&stat->nid_brw_stats->hist[i]);
+ return lu_site_stats_seq_print(obd->obd_lu_dev->ld_site, m);
+}
+LPROC_SEQ_FOPS_RO(ofd_site_stats);
+
+LPROC_SEQ_FOPS_RO_TYPE(ofd, uuid);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, blksize);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytestotal);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytesfree);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, kbytesavail);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, filestotal);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, filesfree);
+
+LPROC_SEQ_FOPS_RO_TYPE(ofd, recovery_status);
+LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_soft);
+LPROC_SEQ_FOPS_RW_TYPE(ofd, recovery_time_hard);
+LPROC_SEQ_FOPS_WO_TYPE(ofd, evict_client);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, num_exports);
+LPROC_SEQ_FOPS_RO_TYPE(ofd, target_instance);
+LPROC_SEQ_FOPS_RW_TYPE(ofd, ir_factor);
+LPROC_SEQ_FOPS_RW_TYPE(ofd, job_interval);
+
+struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
+ { .name = "uuid",
+ .fops = &ofd_uuid_fops },
+ { .name = "blocksize",
+ .fops = &ofd_blksize_fops },
+ { .name = "kbytestotal",
+ .fops = &ofd_kbytestotal_fops },
+ { .name = "kbytesfree",
+ .fops = &ofd_kbytesfree_fops },
+ { .name = "kbytesavail",
+ .fops = &ofd_kbytesavail_fops },
+ { .name = "filestotal",
+ .fops = &ofd_filestotal_fops },
+ { .name = "filesfree",
+ .fops = &ofd_filesfree_fops },
+ { .name = "seqs_allocated",
+ .fops = &ofd_seqs_fops },
+ { .name = "fstype",
+ .fops = &ofd_fstype_fops },
+ { .name = "last_id",
+ .fops = &ofd_last_id_fops },
+ { .name = "tot_dirty",
+ .fops = &ofd_tot_dirty_fops },
+ { .name = "tot_pending",
+ .fops = &ofd_tot_pending_fops },
+ { .name = "tot_granted",
+ .fops = &ofd_tot_granted_fops },
+ { .name = "grant_precreate",
+ .fops = &ofd_grant_precreate_fops },
+ { .name = "precreate_batch",
+ .fops = &ofd_precreate_batch_fops },
+ { .name = "recovery_status",
+ .fops = &ofd_recovery_status_fops },
+ { .name = "recovery_time_soft",
+ .fops = &ofd_recovery_time_soft_fops },
+ { .name = "recovery_time_hard",
+ .fops = &ofd_recovery_time_hard_fops },
+ { .name = "evict_client",
+ .fops = &ofd_evict_client_fops },
+ { .name = "num_exports",
+ .fops = &ofd_num_exports_fops },
+ { .name = "degraded",
+ .fops = &ofd_degraded_fops },
+ { .name = "sync_journal",
+ .fops = &ofd_syncjournal_fops },
+ { .name = "brw_size",
+ .fops = &ofd_brw_size_fops },
+ { .name = "sync_on_lock_cancel",
+ .fops = &ofd_sync_lock_cancel_fops },
+ { .name = "instance",
+ .fops = &ofd_target_instance_fops },
+ { .name = "ir_factor",
+ .fops = &ofd_ir_factor_fops },
+ { .name = "grant_compat_disable",
+ .fops = &ofd_grant_compat_disable_fops },
+ { .name = "client_cache_count",
+ .fops = &ofd_fmd_max_num_fops },
+ { .name = "client_cache_seconds",
+ .fops = &ofd_fmd_max_age_fops },
+ { .name = "job_cleanup_interval",
+ .fops = &ofd_job_interval_fops },
+ { .name = "soft_sync_limit",
+ .fops = &ofd_soft_sync_limit_fops },
+ { .name = "lfsck_speed_limit",
+ .fops = &ofd_lfsck_speed_limit_fops },
+ { .name = "lfsck_layout",
+ .fops = &ofd_lfsck_layout_fops },
+ { .name = "lfsck_verify_pfid",
+ .fops = &ofd_lfsck_verify_pfid_fops },
+ { .name = "site_stats",
+ .fops = &ofd_site_stats_fops },
+ { NULL }
+};
- return len;
+/**
+ * Initialize OFD statistics counters
+ *
+ * param[in] stats statistics counters
+ */
+void ofd_stats_counter_init(struct lprocfs_stats *stats)
+{
+ LASSERT(stats && stats->ls_num >= LPROC_OFD_STATS_LAST);
+
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_READ,
+ LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_WRITE,
+ LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_GETATTR,
+ 0, "getattr", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_SETATTR,
+ 0, "setattr", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_PUNCH,
+ 0, "punch", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_SYNC,
+ 0, "sync", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_DESTROY,
+ 0, "destroy", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_CREATE,
+ 0, "create", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_STATFS,
+ 0, "statfs", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_GET_INFO,
+ 0, "get_info", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_SET_INFO,
+ 0, "set_info", "reqs");
+ lprocfs_counter_init(stats, LPROC_OFD_STATS_QUOTACTL,
+ 0, "quotactl", "reqs");
}
-LPROC_SEQ_FOPS(ofd_per_nid_stats);
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff