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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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32 * Use is subject to license terms.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
38 * lustre/osd-zfs/osd_lproc.c
40 * Author: Alex Zhuravlev <bzzz@whamcloud.com>
41 * Author: Mike Pershin <tappro@whamcloud.com>
44 #define DEBUG_SUBSYSTEM S_CLASS
47 #include <obd_class.h>
48 #include <lprocfs_status.h>
49 #include <lustre/lustre_idl.h>
52 #include "osd_internal.h"
56 static int osd_stats_init(struct osd_device *osd)
61 osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
62 if (osd->od_stats != NULL) {
63 result = lprocfs_register_stats(osd->od_proc_entry, "stats",
68 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
69 LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
71 lprocfs_counter_init(osd->od_stats, LPROC_OSD_NO_PAGE,
72 LPROCFS_CNTR_AVGMINMAX,
73 "get_page_failures", "num");
74 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
75 LPROCFS_CNTR_AVGMINMAX,
76 "cache_access", "pages");
77 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_HIT,
78 LPROCFS_CNTR_AVGMINMAX,
79 "cache_hit", "pages");
80 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_MISS,
81 LPROCFS_CNTR_AVGMINMAX,
82 "cache_miss", "pages");
83 lprocfs_counter_init(osd->od_stats, LPROC_OSD_COPY_IO,
84 LPROCFS_CNTR_AVGMINMAX,
86 lprocfs_counter_init(osd->od_stats, LPROC_OSD_ZEROCOPY_IO,
87 LPROCFS_CNTR_AVGMINMAX,
89 lprocfs_counter_init(osd->od_stats, LPROC_OSD_TAIL_IO,
90 LPROCFS_CNTR_AVGMINMAX,
92 #ifdef OSD_THANDLE_STATS
93 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_STARTING,
94 LPROCFS_CNTR_AVGMINMAX,
95 "thandle_starting", "usec");
96 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_OPEN,
97 LPROCFS_CNTR_AVGMINMAX,
98 "thandle_open", "usec");
99 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_CLOSING,
100 LPROCFS_CNTR_AVGMINMAX,
101 "thandle_closing", "usec");
111 static int lprocfs_osd_rd_fstype(char *page, char **start, off_t off,
112 int count, int *eof, void *data)
114 return snprintf(page, count, "zfs\n");
117 static int lprocfs_osd_rd_mntdev(char *page, char **start, off_t off, int count,
118 int *eof, void *data)
120 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
122 LASSERT(osd != NULL);
125 return snprintf(page, count, "%s\n", osd->od_mntdev);
128 static int lprocfs_osd_wr_force_sync(struct file *file, const char *buffer,
129 unsigned long count, void *data)
131 struct dt_device *dt = data;
135 rc = lu_env_init(&env, LCT_LOCAL);
138 rc = dt_sync(&env, dt);
141 return rc == 0 ? count : rc;
144 static int lprocfs_osd_rd_iused_est(char *page, char **start, off_t off, int count,
145 int *eof, void *data)
147 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
148 LASSERT(osd != NULL);
150 return snprintf(page, count, "%d\n", osd->od_quota_iused_est);
153 static int lprocfs_osd_wr_iused_est(struct file *file, const char *buffer,
154 unsigned long count, void *data)
156 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
159 LASSERT(osd != NULL);
161 rc = lprocfs_write_helper(buffer, count, &val);
165 osd->od_quota_iused_est = !!val;
170 struct lprocfs_vars lprocfs_osd_obd_vars[] = {
171 { "blocksize", lprocfs_osd_rd_blksize, 0, 0 },
172 { "kbytestotal", lprocfs_osd_rd_kbytestotal, 0, 0 },
173 { "kbytesfree", lprocfs_osd_rd_kbytesfree, 0, 0 },
174 { "kbytesavail", lprocfs_osd_rd_kbytesavail, 0, 0 },
175 { "filestotal", lprocfs_osd_rd_filestotal, 0, 0 },
176 { "filesfree", lprocfs_osd_rd_filesfree, 0, 0 },
177 { "fstype", lprocfs_osd_rd_fstype, 0, 0 },
178 { "mntdev", lprocfs_osd_rd_mntdev, 0, 0 },
179 { "force_sync", 0, lprocfs_osd_wr_force_sync },
180 { "quota_iused_estimate", lprocfs_osd_rd_iused_est,
181 lprocfs_osd_wr_iused_est, 0, 0 },
185 struct lprocfs_vars lprocfs_osd_module_vars[] = {
186 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
190 int osd_procfs_init(struct osd_device *osd, const char *name)
192 struct obd_type *type;
196 if (osd->od_proc_entry)
199 /* at the moment there is no linkage between lu_type
200 * and obd_type, so we lookup obd_type this way */
201 type = class_search_type(LUSTRE_OSD_ZFS_NAME);
203 LASSERT(name != NULL);
204 LASSERT(type != NULL);
206 osd->od_proc_entry = lprocfs_register(name, type->typ_procroot,
207 lprocfs_osd_obd_vars, &osd->od_dt_dev);
208 if (IS_ERR(osd->od_proc_entry)) {
209 rc = PTR_ERR(osd->od_proc_entry);
210 CERROR("Error %d setting up lprocfs for %s\n", rc, name);
211 osd->od_proc_entry = NULL;
215 rc = osd_stats_init(osd);
220 osd_procfs_fini(osd);
224 int osd_procfs_fini(struct osd_device *osd)
229 lprocfs_free_stats(&osd->od_stats);
231 if (osd->od_proc_entry) {
232 lprocfs_remove(&osd->od_proc_entry);
233 osd->od_proc_entry = NULL;