*
* 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
-static int lprocfs_ofd_rd_seqs(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_seq_count);
+ seq_printf(m, "%u\n", ofd->ofd_seq_count);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_seqs);
-static int lprocfs_ofd_rd_tot_dirty(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 = (struct obd_device *)data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, LPU64"\n", ofd->ofd_tot_dirty);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_dirty);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_tot_dirty);
-static int lprocfs_ofd_rd_tot_granted(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = (struct obd_device *)data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, LPU64"\n", ofd->ofd_tot_granted);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_granted);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_tot_granted);
-static int lprocfs_ofd_rd_tot_pending(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 = (struct obd_device *)data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, LPU64"\n", ofd->ofd_tot_pending);
+ seq_printf(m, LPU64"\n", ofd->ofd_tot_pending);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_tot_pending);
-static int lprocfs_ofd_rd_grant_precreate(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
-
- LASSERT(obd != NULL);
- *eof = 1;
- return snprintf(page, count, "%ld\n",
- obd->obd_self_export->exp_filter_data.fed_grant);
-}
-
-static int lprocfs_ofd_rd_grant_ratio(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = (struct obd_device *)data;
- struct ofd_device *ofd;
+ struct obd_device *obd = m->private;
LASSERT(obd != NULL);
- ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%d%%\n",
- (int) ofd_grant_reserved(ofd, 100));
-}
-
-static int lprocfs_ofd_wr_grant_ratio(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- 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;
+ 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 lprocfs_ofd_rd_precreate_batch(char *page, char **start, off_t off,
- int count, int *eof, 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 = (struct obd_device *)data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd;
LASSERT(obd != NULL);
ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%d\n", ofd->ofd_precreate_batch);
+ seq_printf(m, "%d\n", ofd->ofd_precreate_batch);
+ return 0;
}
-static int lprocfs_ofd_wr_precreate_batch(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * 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 obd_device *obd = (struct obd_device *)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);
spin_unlock(&ofd->ofd_batch_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_precreate_batch);
-static int lprocfs_ofd_rd_last_id(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 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 = snprintf(page, count, DOSTID"\n", seq,
- ostid_id(&oseq->os_oi));
- if (rc < 0) {
- retval = rc;
- break;
- }
- page += rc;
- count -= rc;
- 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);
-int lprocfs_ofd_rd_fmd_max_num(char *page, char **start, off_t off,
- int count, int *eof, 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 rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- rc = snprintf(page, count, "%u\n", ofd->ofd_fmd_max_num);
- return rc;
+ seq_printf(m, "%u\n", ofd->ofd_fmd_max_num);
+ return 0;
}
-int lprocfs_ofd_wr_fmd_max_num(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * 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 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;
ofd->ofd_fmd_max_num = val;
return count;
}
+LPROC_SEQ_FOPS(ofd_fmd_max_num);
-int lprocfs_ofd_rd_fmd_max_age(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;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- rc = snprintf(page, count, "%ld\n", ofd->ofd_fmd_max_age / HZ);
- return rc;
+ seq_printf(m, "%ld\n", jiffies_to_msecs(ofd->ofd_fmd_max_age) /
+ MSEC_PER_SEC);
+ return 0;
}
-int lprocfs_ofd_wr_fmd_max_age(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;
+ 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 lprocfs_ofd_rd_capa(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;
- 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, "%u\n", ofd->ofd_raid_degraded);
+ return 0;
}
-static int lprocfs_ofd_wr_capa(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;
- 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;
- 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");
+ spin_lock(&ofd->ofd_flags_lock);
+ ofd->ofd_raid_degraded = !!val;
+ spin_unlock(&ofd->ofd_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_degraded);
-static int lprocfs_ofd_rd_capa_count(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)
{
- return snprintf(page, count, "%d %d\n",
- capa_count[CAPA_SITE_CLIENT],
- capa_count[CAPA_SITE_SERVER]);
+ 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);
+ seq_printf(m, "%s\n", d->ld_type->ldt_name);
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ofd_fstype);
-int lprocfs_ofd_rd_degraded(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 ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ 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_syncjournal);
+ return 0;
}
-int lprocfs_ofd_wr_degraded(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, 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;
+
spin_lock(&ofd->ofd_flags_lock);
- ofd->ofd_raid_degraded = !!val;
+ ofd->ofd_syncjournal = !!val;
+ ofd_slc_set(ofd);
spin_unlock(&ofd->ofd_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_syncjournal);
-int lprocfs_ofd_rd_fstype(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct obd_device *obd = data;
- 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);
-}
+/* This must be longer than the longest string below */
+#define SYNC_STATES_MAXLEN 16
-int lprocfs_ofd_rd_syncjournal(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ofd_brw_size_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_brw_size / ONE_MB_BRW_SIZE);
+ return 0;
}
-int lprocfs_ofd_wr_syncjournal(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+ofd_brw_size_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;
+ 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_syncjournal = !!val;
- ofd_slc_set(ofd);
+ 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 obd_device *obd = m->private;
struct lu_target *tgt = obd->u.obt.obt_lut;
- int rc;
- rc = snprintf(page, count, "%s\n",
- sync_on_cancel_states[tgt->lut_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)
-{
- struct obd_device *obd = data;
- struct lu_target *tgt = obd->u.obt.obt_lut;
- int val = -1;
- int i;
+/**
+ * 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];
+ __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;
}
spin_unlock(&tgt->lut_flags_lock);
return count;
}
+LPROC_SEQ_FOPS(ofd_sync_lock_cancel);
-int lprocfs_ofd_rd_grant_compat_disable(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- int rc;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- rc = snprintf(page, count, "%u\n", ofd->ofd_grant_compat_disable);
- return rc;
+ seq_printf(m, "%u\n", ofd->ofd_grant_compat_disable);
+ return 0;
}
-int lprocfs_ofd_wr_grant_compat_disable(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * 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 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;
return count;
}
+LPROC_SEQ_FOPS(ofd_grant_compat_disable);
-int lprocfs_ofd_rd_soft_sync_limit(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return lprocfs_rd_uint(page, start, off, count, eof,
- &ofd->ofd_soft_sync_limit);
+ return lprocfs_uint_seq_show(m, &ofd->ofd_soft_sync_limit);
}
-int lprocfs_ofd_wr_soft_sync_limit(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * 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 obd_device *obd = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct seq_file *m = file->private_data;
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- return lprocfs_wr_uint(file, buffer, count, &ofd->ofd_soft_sync_limit);
+ return lprocfs_uint_seq_write(file, buffer, count,
+ (loff_t *) &ofd->ofd_soft_sync_limit);
}
+LPROC_SEQ_FOPS(ofd_soft_sync_limit);
-static int lprocfs_rd_lfsck_speed_limit(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = data;
+ struct obd_device *obd = m->private;
struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
-
- return lfsck_get_speed(ofd->ofd_osd, page, count);
+ return lfsck_get_speed(m, ofd->ofd_osd);
}
-static int lprocfs_wr_lfsck_speed_limit(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * 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 obd_device *obd = data;
- 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);
-static int lprocfs_rd_lfsck_layout(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * 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 = data;
- struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
+ struct obd_device *obd = m->private;
+ struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
- *eof = 1;
-
- return lfsck_dump(ofd->ofd_osd, page, count, LT_LAYOUT);
-}
-
-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 },
- { "seqs_allocated", lprocfs_ofd_rd_seqs, 0, 0 },
- { "fstype", lprocfs_ofd_rd_fstype, 0, 0 },
- { "last_id", lprocfs_ofd_rd_last_id, 0, 0 },
- { "tot_dirty", lprocfs_ofd_rd_tot_dirty, 0, 0 },
- { "tot_pending", lprocfs_ofd_rd_tot_pending, 0, 0 },
- { "tot_granted", lprocfs_ofd_rd_tot_granted, 0, 0 },
- { "grant_precreate", lprocfs_ofd_rd_grant_precreate, 0, 0 },
- { "grant_ratio", lprocfs_ofd_rd_grant_ratio,
- lprocfs_ofd_wr_grant_ratio, 0, 0 },
- { "precreate_batch", lprocfs_ofd_rd_precreate_batch,
- lprocfs_ofd_wr_precreate_batch, 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},
- { "grant_compat_disable", lprocfs_ofd_rd_grant_compat_disable,
- lprocfs_ofd_wr_grant_compat_disable, 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 },
- { "job_cleanup_interval", lprocfs_rd_job_interval,
- lprocfs_wr_job_interval, 0},
- { "soft_sync_limit", lprocfs_ofd_rd_soft_sync_limit,
- lprocfs_ofd_wr_soft_sync_limit, 0},
- { "lfsck_speed_limit", lprocfs_rd_lfsck_speed_limit,
- lprocfs_wr_lfsck_speed_limit, 0 },
- { "lfsck_layout", lprocfs_rd_lfsck_layout, 0, 0 },
- { 0 }
-};
+ return lfsck_dump(m, ofd->ofd_osd, LFSCK_TYPE_LAYOUT);
+}
+LPROC_SEQ_FOPS_RO(ofd_lfsck_layout);
-static struct lprocfs_vars lprocfs_ofd_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
-};
+/**
+ * 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);
-void lprocfs_ofd_init_vars(struct lprocfs_static_vars *lvars)
+ 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)
{
- lvars->module_vars = lprocfs_ofd_module_vars;
- lvars->obd_vars = lprocfs_ofd_obd_vars;
+ 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 != 0)
+ return rc;
+
+ ofd->ofd_lfsck_verify_pfid = !!val;
+
+ return count;
}
+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_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 }
+};
+/**
+ * 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