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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 <lprocfs_status.h>
50 #include <lustre/lustre_idl.h>
53 #include "osd_internal.h"
57 static int osd_stats_init(struct osd_device *osd)
62 osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
63 if (osd->od_stats != NULL) {
64 result = lprocfs_register_stats(osd->od_proc_entry, "stats",
69 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
70 LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
72 lprocfs_counter_init(osd->od_stats, LPROC_OSD_NO_PAGE,
73 LPROCFS_CNTR_AVGMINMAX,
74 "get_page_failures", "num");
75 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
76 LPROCFS_CNTR_AVGMINMAX,
77 "cache_access", "pages");
78 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_HIT,
79 LPROCFS_CNTR_AVGMINMAX,
80 "cache_hit", "pages");
81 lprocfs_counter_init(osd->od_stats, LPROC_OSD_CACHE_MISS,
82 LPROCFS_CNTR_AVGMINMAX,
83 "cache_miss", "pages");
84 lprocfs_counter_init(osd->od_stats, LPROC_OSD_COPY_IO,
85 LPROCFS_CNTR_AVGMINMAX,
87 lprocfs_counter_init(osd->od_stats, LPROC_OSD_ZEROCOPY_IO,
88 LPROCFS_CNTR_AVGMINMAX,
90 lprocfs_counter_init(osd->od_stats, LPROC_OSD_TAIL_IO,
91 LPROCFS_CNTR_AVGMINMAX,
93 #ifdef OSD_THANDLE_STATS
94 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_STARTING,
95 LPROCFS_CNTR_AVGMINMAX,
96 "thandle_starting", "usec");
97 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_OPEN,
98 LPROCFS_CNTR_AVGMINMAX,
99 "thandle_open", "usec");
100 lprocfs_counter_init(osd->od_stats, LPROC_OSD_THANDLE_CLOSING,
101 LPROCFS_CNTR_AVGMINMAX,
102 "thandle_closing", "usec");
112 static int lprocfs_osd_rd_fstype(char *page, char **start, off_t off,
113 int count, int *eof, void *data)
115 return snprintf(page, count, "zfs\n");
118 static int lprocfs_osd_rd_mntdev(char *page, char **start, off_t off, int count,
119 int *eof, void *data)
121 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
123 LASSERT(osd != NULL);
126 return snprintf(page, count, "%s\n", osd->od_mntdev);
129 static int lprocfs_osd_wr_force_sync(struct file *file, const char *buffer,
130 unsigned long count, void *data)
132 struct dt_device *dt = data;
136 rc = lu_env_init(&env, LCT_LOCAL);
139 rc = dt_sync(&env, dt);
142 return rc == 0 ? count : rc;
145 static int lprocfs_osd_rd_iused_est(char *page, char **start, off_t off, int count,
146 int *eof, void *data)
148 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
149 LASSERT(osd != NULL);
151 return snprintf(page, count, "%d\n", osd->od_quota_iused_est);
154 static int lprocfs_osd_wr_iused_est(struct file *file, const char *buffer,
155 unsigned long count, void *data)
157 struct osd_device *osd = osd_dt_dev((struct dt_device *)data);
160 LASSERT(osd != NULL);
162 rc = lprocfs_write_helper(buffer, count, &val);
166 osd->od_quota_iused_est = !!val;
171 struct lprocfs_vars lprocfs_osd_obd_vars[] = {
172 { "blocksize", lprocfs_osd_rd_blksize, 0, 0 },
173 { "kbytestotal", lprocfs_osd_rd_kbytestotal, 0, 0 },
174 { "kbytesfree", lprocfs_osd_rd_kbytesfree, 0, 0 },
175 { "kbytesavail", lprocfs_osd_rd_kbytesavail, 0, 0 },
176 { "filestotal", lprocfs_osd_rd_filestotal, 0, 0 },
177 { "filesfree", lprocfs_osd_rd_filesfree, 0, 0 },
178 { "fstype", lprocfs_osd_rd_fstype, 0, 0 },
179 { "mntdev", lprocfs_osd_rd_mntdev, 0, 0 },
180 { "force_sync", 0, lprocfs_osd_wr_force_sync },
181 { "quota_iused_estimate", lprocfs_osd_rd_iused_est,
182 lprocfs_osd_wr_iused_est, 0, 0 },
186 struct lprocfs_vars lprocfs_osd_module_vars[] = {
187 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
191 int osd_procfs_init(struct osd_device *osd, const char *name)
193 struct lu_device *ld = &osd->od_dt_dev.dd_lu_dev;
194 struct obd_type *type = ld->ld_type->ldt_obd_type;
198 if (osd->od_proc_entry)
201 LASSERT(name != NULL);
202 LASSERT(type != NULL);
204 osd->od_proc_entry = lprocfs_register(name, type->typ_procroot,
205 lprocfs_osd_obd_vars, &osd->od_dt_dev);
206 if (IS_ERR(osd->od_proc_entry)) {
207 rc = PTR_ERR(osd->od_proc_entry);
208 CERROR("Error %d setting up lprocfs for %s\n", rc, name);
209 osd->od_proc_entry = NULL;
213 rc = osd_stats_init(osd);
218 osd_procfs_fini(osd);
222 int osd_procfs_fini(struct osd_device *osd)
227 lprocfs_free_stats(&osd->od_stats);
229 if (osd->od_proc_entry) {
230 lprocfs_remove(&osd->od_proc_entry);
231 osd->od_proc_entry = NULL;