*
* 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) 2012, 2013, Intel Corporation.
+ * 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 "ofd_internal.h"
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
+/**
+ * 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 = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%u\n", ofd->ofd_seq_count);
+ seq_printf(m, "%u\n", ofd->ofd_seq_count);
+ return 0;
}
LPROC_SEQ_FOPS_RO(ofd_seqs);
+/**
+ * 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 = m->private;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, LPU64"\n", ofd->ofd_tot_dirty);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_dirty);
+ return 0;
}
LPROC_SEQ_FOPS_RO(ofd_tot_dirty);
+/**
+ * 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;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, LPU64"\n", ofd->ofd_tot_granted);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_granted);
+ return 0;
}
LPROC_SEQ_FOPS_RO(ofd_tot_granted);
+/**
+ * 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 = m->private;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, LPU64"\n", ofd->ofd_tot_pending);
+ 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;
LASSERT(obd != NULL);
- return seq_printf(m, "%ld\n",
- obd->obd_self_export->exp_filter_data.fed_grant);
+ seq_printf(m, "%ld\n",
+ obd->obd_self_export->exp_filter_data.fed_grant);
+ return 0;
}
LPROC_SEQ_FOPS_RO(ofd_grant_precreate);
-static int ofd_grant_ratio_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);
- return seq_printf(m, "%d%%\n",
- (int) ofd_grant_reserved(ofd, 100));
-}
-
-static ssize_t
-ofd_grant_ratio_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);
- int val;
- int rc;
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- if (val > 100 || val < 0)
- return -EINVAL;
-
- if (val == 0)
- CWARN("%s: disabling grant error margin\n", obd->obd_name);
- if (val > 50)
- CWARN("%s: setting grant error margin >50%%, be warned that "
- "a huge part of the free space is now reserved for "
- "grants\n", obd->obd_name);
-
- spin_lock(&ofd->ofd_grant_lock);
- ofd->ofd_grant_ratio = ofd_grant_ratio_conv(val);
- spin_unlock(&ofd->ofd_grant_lock);
- return count;
-}
-LPROC_SEQ_FOPS(ofd_grant_ratio);
-
+/**
+ * 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 = m->private;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%d\n", ofd->ofd_precreate_batch);
+ 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 seq_file *m = file->private_data;
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val;
+ __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 < 1)
+ if (val < 1 || val > INT_MAX)
return -EINVAL;
spin_lock(&ofd->ofd_batch_lock);
}
LPROC_SEQ_FOPS(ofd_precreate_batch);
+/**
+ * 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 = m->private;
struct ofd_device *ofd;
struct ofd_seq *oseq = NULL;
- int retval = 0, rc;
if (obd == NULL)
return 0;
ofd = ofd_dev(obd->obd_lu_dev);
read_lock(&ofd->ofd_seq_list_lock);
- cfs_list_for_each_entry(oseq, &ofd->ofd_seq_list, os_list) {
+ 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);
- rc = seq_printf(m, DOSTID"\n", seq, ostid_id(&oseq->os_oi));
- if (rc < 0) {
- retval = rc;
- break;
- }
- retval += rc;
+ seq_printf(m, DOSTID"\n", seq, ostid_id(&oseq->os_oi));
}
read_unlock(&ofd->ofd_seq_list_lock);
- return retval;
+ return 0;
}
LPROC_SEQ_FOPS_RO(ofd_last_id);
+/**
+ * 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 = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%u\n", ofd->ofd_fmd_max_num);
+ seq_printf(m, "%u\n", ofd->ofd_fmd_max_num);
+ return 0;
}
+/**
+ * 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);
- 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;
}
LPROC_SEQ_FOPS(ofd_fmd_max_num);
+/**
+ * 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 = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%ld\n", ofd->ofd_fmd_max_age / HZ);
+ seq_printf(m, "%ld\n", jiffies_to_msecs(ofd->ofd_fmd_max_age) /
+ MSEC_PER_SEC);
+ return 0;
}
+/**
+ * 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 seq_file *m = file->private_data;
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int val;
+ __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 > 65536 || val < 1)
return -EINVAL;
- ofd->ofd_fmd_max_age = val * HZ;
+ ofd->ofd_fmd_max_age = msecs_to_jiffies(val * MSEC_PER_SEC);
return count;
}
LPROC_SEQ_FOPS(ofd_fmd_max_age);
-static int ofd_capa_seq_show(struct seq_file *m, void *data)
-{
- struct obd_device *obd = m->private;
-
- return seq_printf(m, "capability on: %s\n",
- obd->u.filter.fo_fl_oss_capa ? "oss" : "");
-}
-
-static ssize_t
-ofd_capa_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;
- int val, rc;
-
- rc = lprocfs_write_helper(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");
- return -EINVAL;
- }
-
- obd->u.filter.fo_fl_oss_capa = val;
- LCONSOLE_INFO("OSS %s %s fid capability.\n", obd->obd_name,
- val ? "enabled" : "disabled");
- return count;
-}
-LPROC_SEQ_FOPS(ofd_capa);
-
-static int ofd_capa_count_seq_show(struct seq_file *m, void *data)
-{
- return seq_printf(m, "%d %d\n", capa_count[CAPA_SITE_CLIENT],
- capa_count[CAPA_SITE_SERVER]);
-}
-LPROC_SEQ_FOPS_RO(ofd_capa_count);
-
+/**
+ * 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 = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%u\n", ofd->ofd_raid_degraded);
+ seq_printf(m, "%u\n", ofd->ofd_raid_degraded);
+ return 0;
}
+/**
+ * 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 seq_file *m = file->private_data;
- struct obd_device *obd = m->private;
- 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;
}
LPROC_SEQ_FOPS(ofd_degraded);
+/**
+ * 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 = m->private;
LASSERT(ofd->ofd_osd);
d = &ofd->ofd_osd->dd_lu_dev;
LASSERT(d->ld_type);
- return seq_printf(m, "%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);
+/**
+ * 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 = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return seq_printf(m, "%u\n", ofd->ofd_syncjournal);
+ seq_printf(m, "%u\n", ofd->ofd_syncjournal);
+ return 0;
}
+/**
+ * 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 seq_file *m = file->private_data;
- struct obd_device *obd = m->private;
- 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;
/* 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" };
+/**
+ * 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 = m->private;
struct lu_target *tgt = obd->u.obt.obt_lut;
- return seq_printf(m, "%s\n",
- sync_on_cancel_states[tgt->lut_sync_lock_cancel]);
+ seq_printf(m, "%s\n",
+ sync_on_cancel_states[tgt->lut_sync_lock_cancel]);
+ return 0;
}
+/**
+ * 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 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];
- 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;
/* Legacy numeric codes */
if (val == -1) {
- int rc;
-
- /* Safe to use userspace buffer as lprocfs_write_helper will
- * use copy from user for parsing */
- rc = lprocfs_write_helper(buffer, count, &val);
+ int rc = lprocfs_str_to_s64(buffer, count, &val);
if (rc)
return rc;
}
}
LPROC_SEQ_FOPS(ofd_sync_lock_cancel);
+/**
+ * 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);
- return seq_printf(m, "%u\n", ofd->ofd_grant_compat_disable);
+ seq_printf(m, "%u\n", ofd->ofd_grant_compat_disable);
+ return 0;
}
+/**
+ * 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 seq_file *m = file->private_data;
- struct obd_device *obd = m->private;
- 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;
}
LPROC_SEQ_FOPS(ofd_grant_compat_disable);
+/**
+ * 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;
return lprocfs_uint_seq_show(m, &ofd->ofd_soft_sync_limit);
}
+/**
+ * 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)
}
LPROC_SEQ_FOPS(ofd_soft_sync_limit);
+/**
+ * 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 *obd = m->private;
return lfsck_get_speed(m, ofd->ofd_osd);
}
+/**
+ * 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 *m = file->private_data;
- struct obd_device *obd = m->private;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- __u32 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 != 0)
return rc;
+ if (val < 0)
+ return -ERANGE;
+
rc = lfsck_set_speed(ofd->ofd_osd, val);
return rc != 0 ? rc : count;
}
LPROC_SEQ_FOPS(ofd_lfsck_speed_limit);
+/**
+ * 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)
{
struct obd_device *obd = m->private;
}
LPROC_SEQ_FOPS_RO(ofd_lfsck_layout);
+/**
+ * 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)
{
struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return 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);
+ 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;
}
+/**
+ * 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)
{
- struct seq_file *m = file->private_data;
- struct obd_device *obd = m->private;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- __u32 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 != 0)
return rc;
}
LPROC_SEQ_FOPS(ofd_lfsck_verify_pfid);
+static int ofd_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);
+}
+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_RW_TYPE(ofd, ir_factor);
LPROC_SEQ_FOPS_RW_TYPE(ofd, job_interval);
-struct lprocfs_seq_vars lprocfs_ofd_obd_vars[] = {
+struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
{ .name = "uuid",
.fops = &ofd_uuid_fops },
{ .name = "blocksize",
.fops = &ofd_tot_granted_fops },
{ .name = "grant_precreate",
.fops = &ofd_grant_precreate_fops },
- { .name = "grant_ratio",
- .fops = &ofd_grant_ratio_fops },
{ .name = "precreate_batch",
.fops = &ofd_precreate_batch_fops },
{ .name = "recovery_status",
.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_fmd_max_num_fops },
{ .name = "client_cache_seconds",
.fops = &ofd_fmd_max_age_fops },
- { .name = "capa",
- .fops = &ofd_capa_fops },
- { .name = "capa_count",
- .fops = &ofd_capa_count_fops },
{ .name = "job_cleanup_interval",
.fops = &ofd_job_interval_fops },
{ .name = "soft_sync_limit",
.fops = &ofd_lfsck_layout_fops },
{ .name = "lfsck_verify_pfid",
.fops = &ofd_lfsck_verify_pfid_fops },
- { 0 }
+ { .name = "site_stats",
+ .fops = &ofd_site_stats_fops },
+ { NULL }
};
+/**
+ * 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);
0, "quotactl", "reqs");
}
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff