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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2012, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd-zfs/osd_lproc.c
38 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
39 * Author: Mike Pershin <tappro@whamcloud.com>
42 #define DEBUG_SUBSYSTEM S_OSD
45 #include <obd_class.h>
46 #include <lprocfs_status.h>
47 #include <lustre/lustre_idl.h>
49 #include "osd_internal.h"
53 static int osd_stats_init(struct osd_device *osd)
58 osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
59 if (osd->od_stats != NULL) {
60 result = lprocfs_register_stats(osd->od_proc_entry, "stats",
65 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
66 LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
68 lprocfs_counter_init(osd->od_stats, LPROC_OSD_NO_PAGE,
69 LPROCFS_CNTR_AVGMINMAX,
70 "get_page_failures", "num");
71 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
72 LPROCFS_CNTR_AVGMINMAX,
73 "cache_access", "pages");
74 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_HIT,
75 LPROCFS_CNTR_AVGMINMAX,
76 "cache_hit", "pages");
77 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_MISS,
78 LPROCFS_CNTR_AVGMINMAX,
79 "cache_miss", "pages");
80 lprocfs_counter_init(osd->od_stats, LPROC_OSD_COPY_IO,
81 LPROCFS_CNTR_AVGMINMAX,
83 lprocfs_counter_init(osd->od_stats, LPROC_OSD_ZEROCOPY_IO,
84 LPROCFS_CNTR_AVGMINMAX,
86 lprocfs_counter_init(osd->od_stats, LPROC_OSD_TAIL_IO,
87 LPROCFS_CNTR_AVGMINMAX,
89 #ifdef OSD_THANDLE_STATS
90 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_STARTING,
91 LPROCFS_CNTR_AVGMINMAX,
92 "thandle_starting", "usec");
93 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_OPEN,
94 LPROCFS_CNTR_AVGMINMAX,
95 "thandle_open", "usec");
96 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_CLOSING,
97 LPROCFS_CNTR_AVGMINMAX,
98 "thandle_closing", "usec");
108 static int zfs_osd_fstype_seq_show(struct seq_file *m, void *data)
110 return seq_printf(m, "zfs\n");
112 LPROC_SEQ_FOPS_RO(zfs_osd_fstype);
114 static int zfs_osd_mntdev_seq_show(struct seq_file *m, void *data)
116 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
118 LASSERT(osd != NULL);
119 return seq_printf(m, "%s\n", osd->od_mntdev);
121 LPROC_SEQ_FOPS_RO(zfs_osd_mntdev);
124 lprocfs_osd_force_sync_seq_write(struct file *file, const char __user *buffer,
125 size_t count, loff_t *off)
127 struct seq_file *m = file->private_data;
128 struct dt_device *dt = m->private;
132 rc = lu_env_init(&env, LCT_LOCAL);
135 rc = dt_sync(&env, dt);
138 return rc == 0 ? count : rc;
140 LPROC_SEQ_FOPS_WO_TYPE(zfs, osd_force_sync);
142 static int zfs_osd_iused_est_seq_show(struct seq_file *m, void *data)
144 struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
145 LASSERT(osd != NULL);
147 return seq_printf(m, "%d\n", osd->od_quota_iused_est);
151 zfs_osd_iused_est_seq_write(struct file *file, const char __user *buffer,
152 size_t count, loff_t *off)
154 struct seq_file *m = file->private_data;
155 struct dt_device *dt = m->private;
156 struct osd_device *osd = osd_dt_dev(dt);
159 LASSERT(osd != NULL);
161 rc = lprocfs_write_helper(buffer, count, &val);
165 osd->od_quota_iused_est = !!val;
169 LPROC_SEQ_FOPS(zfs_osd_iused_est);
171 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_blksize);
172 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_kbytestotal);
173 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_kbytesfree);
174 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_kbytesavail);
175 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_filestotal);
176 LPROC_SEQ_FOPS_RO_TYPE(zfs, dt_filesfree);
178 struct lprocfs_seq_vars lprocfs_osd_obd_vars[] = {
179 { .name = "blocksize",
180 .fops = &zfs_dt_blksize_fops },
181 { .name = "kbytestotal",
182 .fops = &zfs_dt_kbytestotal_fops },
183 { .name = "kbytesfree",
184 .fops = &zfs_dt_kbytesfree_fops },
185 { .name = "kbytesavail",
186 .fops = &zfs_dt_kbytesavail_fops },
187 { .name = "filestotal",
188 .fops = &zfs_dt_filestotal_fops },
189 { .name = "filesfree",
190 .fops = &zfs_dt_filesfree_fops },
192 .fops = &zfs_osd_fstype_fops },
194 .fops = &zfs_osd_mntdev_fops },
195 { .name = "force_sync",
196 .fops = &zfs_osd_force_sync_fops },
197 { .name = "quota_iused_estimate",
198 .fops = &zfs_osd_iused_est_fops },
202 int osd_procfs_init(struct osd_device *osd, const char *name)
204 struct obd_type *type;
208 if (osd->od_proc_entry)
211 /* at the moment there is no linkage between lu_type
212 * and obd_type, so we lookup obd_type this way */
213 type = class_search_type(LUSTRE_OSD_ZFS_NAME);
215 LASSERT(name != NULL);
216 LASSERT(type != NULL);
218 osd->od_proc_entry = lprocfs_seq_register(name, type->typ_procroot,
219 lprocfs_osd_obd_vars, &osd->od_dt_dev);
220 if (IS_ERR(osd->od_proc_entry)) {
221 rc = PTR_ERR(osd->od_proc_entry);
222 CERROR("Error %d setting up lprocfs for %s\n", rc, name);
223 osd->od_proc_entry = NULL;
227 rc = osd_stats_init(osd);
232 osd_procfs_fini(osd);
236 int osd_procfs_fini(struct osd_device *osd)
241 lprocfs_free_stats(&osd->od_stats);
243 if (osd->od_proc_entry) {
244 lprocfs_remove(&osd->od_proc_entry);
245 osd->od_proc_entry = NULL;