lproc_mds.c

lustre 1.6.5 source code

        kernbuf[count] = '\0';

        uid = simple_strtoul(kernbuf, &tmp, 0);
        if (kernbuf == tmp) {
                if (tmp[0] != ':')
                        return -EINVAL;
                uid = mds->mds_squash_uid;
        }
        /* skip ':' */
        tmp++;
        gid = simple_strtoul(tmp, &end, 0);
        if (tmp == end)
                gid = mds->mds_squash_gid;

        mds->mds_squash_uid = uid;
        mds->mds_squash_gid = gid;
        return count;
}

static int lprocfs_rd_rootsquash(char *page, char **start, off_t off,
                                 int count, int *eof, void *data)
{
        struct obd_device *obd = data;
        struct mds_obd *mds = &obd->u.mds;

        *eof = 1;
        return snprintf(page, count, "%lu:%lu\n",
                        (unsigned long)mds->mds_squash_uid,
                        (unsigned long)mds->mds_squash_gid);
}

static int lprocfs_wr_nosquash_nid(struct file *file, const char *buffer,
                                   unsigned long count, void *data)
{
        struct obd_device *obd = data;
        struct mds_obd *mds = &obd->u.mds;
        char kernbuf[30], *start, *end;

        if (count > (sizeof(kernbuf) - 1))
                return -EINVAL;

        if (copy_from_user(kernbuf, buffer, count))
                return -EFAULT;
        kernbuf[count] = '\0';

        /* strip frontal whitespaces */
        start = kernbuf;
        while (*start && isspace(*start))
                start++;
        /* EOL - string doesn't contain NID */
        if (*start == '\0')
                return -EINVAL;
        /* strip backward whitespaces */
        end = kernbuf + count - 1;
        while (*end && isspace(*end))
                end--;
        *(end + 1) = '\0';

        mds->mds_nosquash_nid = libcfs_str2nid(start);
        return count;
}

static int lprocfs_rd_nosquash_nid(char *page, char **start, off_t off,
                                   int count, int *eof, void *data)
{
        struct obd_device *obd = data;
        struct mds_obd *mds = &obd->u.mds;

        *eof = 1;
        return snprintf(page, count, "%s\n",
                        libcfs_nid2str(mds->mds_nosquash_nid));
}

#ifdef HAVE_QUOTA_SUPPORT
static int lprocfs_mds_rd_switch_qs(char *page, char **start, off_t off,
                                    int count, int *eof, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        LASSERT(obd != NULL);

        return snprintf(page, count, "changing qunit size is %s\n",
                        obd->u.obt.obt_qctxt.lqc_switch_qs ?
                        "enabled" : "disabled");
}

static int lprocfs_mds_rd_boundary_factor(char *page, char **start, off_t off,
                                          int count, int *eof, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        LASSERT(obd != NULL);


        return snprintf(page, count, "%lu\n",
                        obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor);
}

static int lprocfs_mds_rd_least_bunit(char *page, char **start, off_t off,
                                      int count, int *eof, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        LASSERT(obd != NULL);


        return snprintf(page, count, "%lu\n",
                        obd->u.obt.obt_qctxt.lqc_cqs_least_bunit);
}

static int lprocfs_mds_rd_least_iunit(char *page, char **start, off_t off,
                                      int count, int *eof, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        LASSERT(obd != NULL);


        return snprintf(page, count, "%lu\n",
                        obd->u.obt.obt_qctxt.lqc_cqs_least_iunit);
}

static int lprocfs_mds_rd_qs_factor(char *page, char **start, off_t off,
                                    int count, int *eof, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        LASSERT(obd != NULL);


        return snprintf(page, count, "%lu\n",
                        obd->u.obt.obt_qctxt.lqc_cqs_qs_factor);
}

static int lprocfs_mds_wr_switch_qs(struct file *file, const char *buffer,
                                    unsigned long count, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        int val, rc;
        LASSERT(obd != NULL);

        rc = lprocfs_write_helper(buffer, count, &val);
        if (rc)
                return rc;

        if (val)
            obd->u.obt.obt_qctxt.lqc_switch_qs = 1;
        else
            obd->u.obt.obt_qctxt.lqc_switch_qs = 0;

        return count;
}

static int lprocfs_mds_wr_boundary_factor(struct file *file, const char *buffer,
                                          unsigned long count, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        int val, rc;
        LASSERT(obd != NULL);

        rc = lprocfs_write_helper(buffer, count, &val);
        if (rc)
                return rc;

        if (val < 2)
                return -EINVAL;

        obd->u.obt.obt_qctxt.lqc_cqs_boundary_factor = val;
        return count;
}

static int lprocfs_mds_wr_least_bunit(struct file *file, const char *buffer,
                                  unsigned long count, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        int val, rc;
        LASSERT(obd != NULL);

        rc = lprocfs_write_helper(buffer, count, &val);
        if (rc)
                return rc;

        if (val < PTLRPC_MAX_BRW_SIZE ||
            val >= obd->u.obt.obt_qctxt.lqc_bunit_sz)
                return -EINVAL;

        obd->u.obt.obt_qctxt.lqc_cqs_least_bunit = val;
        return count;
}

static int lprocfs_mds_wr_least_iunit(struct file *file, const char *buffer,
                                  unsigned long count, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        int val, rc;
        LASSERT(obd != NULL);

        rc = lprocfs_write_helper(buffer, count, &val);
        if (rc)
                return rc;

        if (val < 1 || val >= obd->u.obt.obt_qctxt.lqc_iunit_sz)
                return -EINVAL;

        obd->u.obt.obt_qctxt.lqc_cqs_least_iunit = val;
        return count;
}

static int lprocfs_mds_wr_qs_factor(struct file *file, const char *buffer,
                                    unsigned long count, void *data)
{
        struct obd_device *obd = (struct obd_device *)data;
        int val, rc;
        LASSERT(obd != NULL);

        rc = lprocfs_write_helper(buffer, count, &val);
        if (rc)
                return rc;

        if (val < 2)
                return -EINVAL;

        obd->u.obt.obt_qctxt.lqc_cqs_qs_factor = val;
        return count;
}
#endif

struct lprocfs_vars lprocfs_mds_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 },
        { "fstype",          lprocfs_rd_fstype,      0, 0 },
        { "mntdev",          lprocfs_mds_rd_mntdev,  0, 0 },
        { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
        { "evict_client",    0,                lprocfs_mds_wr_evict_client, 0 },
        { "evict_ost_nids",  lprocfs_mds_rd_evictostnids,
                                               lprocfs_mds_wr_evictostnids, 0 },
        { "num_exports",     lprocfs_rd_num_exports, 0, 0 },
#ifdef HAVE_QUOTA_SUPPORT
        { "quota_bunit_sz",  lprocfs_quota_rd_bunit, lprocfs_quota_wr_bunit, 0 },
        { "quota_btune_sz",  lprocfs_quota_rd_btune, lprocfs_quota_wr_btune, 0 },
        { "quota_iunit_sz",  lprocfs_quota_rd_iunit, lprocfs_quota_wr_iunit, 0 },
        { "quota_itune_sz",  lprocfs_quota_rd_itune, lprocfs_quota_wr_itune, 0 },
        { "quota_type",      lprocfs_quota_rd_type,  lprocfs_quota_wr_type, 0 },
        { "quota_switch_qs", lprocfs_mds_rd_switch_qs,
                             lprocfs_mds_wr_switch_qs, 0 },
        { "quota_boundary_factor", lprocfs_mds_rd_boundary_factor,
                                   lprocfs_mds_wr_boundary_factor, 0 },
        { "quota_least_bunit", lprocfs_mds_rd_least_bunit,
                               lprocfs_mds_wr_least_bunit, 0 },
        { "quota_least_iunit", lprocfs_mds_rd_least_iunit,
                               lprocfs_mds_wr_least_iunit, 0 },
        { "quota_qs_factor",   lprocfs_mds_rd_qs_factor,
                               lprocfs_mds_wr_qs_factor, 0 },
        { "quota_switch_seconds",  lprocfs_quota_rd_switch_seconds,
                                   lprocfs_quota_wr_switch_seconds, 0 },
#endif
        { "group_expire_interval", lprocfs_rd_group_expire,
                             lprocfs_wr_group_expire, 0},
        { "group_acquire_expire", lprocfs_rd_group_acquire_expire,
                             lprocfs_wr_group_acquire_expire, 0},
        { "group_upcall",    lprocfs_rd_group_upcall,
                             lprocfs_wr_group_upcall, 0},
        { "group_flush",     0, lprocfs_wr_group_flush, 0},
        { "group_info",      0, lprocfs_wr_group_info, 0 },
        { "atime_diff",      lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 0 },
        { "rootsquash",      lprocfs_rd_rootsquash,
                             lprocfs_wr_rootsquash, 0 },
        { "nosquash_nid",    lprocfs_rd_nosquash_nid,
                             lprocfs_wr_nosquash_nid, 0 },
        { 0 }
};

struct lprocfs_vars lprocfs_mds_module_vars[] = {
        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
        { 0 }
};

struct lprocfs_vars lprocfs_mdt_obd_vars[] = {
        { "uuid",         lprocfs_rd_uuid,        0, 0 },
        { 0 }
};

struct lprocfs_vars lprocfs_mdt_module_vars[] = {
        { "num_refs",     lprocfs_rd_numrefs,     0, 0 },
        { 0 }
};

void mds_counter_incr(struct obd_export *exp, int opcode)
{
        if (exp->exp_obd && exp->exp_obd->obd_stats)
                lprocfs_counter_incr(exp->exp_obd->obd_stats, opcode);
        if (exp->exp_nid_stats && exp->exp_nid_stats->nid_stats != NULL)
                lprocfs_counter_incr(exp->exp_nid_stats->nid_stats, opcode);

}

void mds_stats_counter_init(struct lprocfs_stats *stats)
{
        lprocfs_counter_init(stats, LPROC_MDS_OPEN, 0, "open", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_CLOSE, 0, "close", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_MKNOD, 0, "mknod", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_LINK, 0, "link", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_UNLINK, 0, "unlink", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_MKDIR, 0, "mkdir", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_RMDIR, 0, "rmdir", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_RENAME, 0, "rename", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_GETXATTR, 0, "getxattr", "reqs");
        lprocfs_counter_init(stats, LPROC_MDS_SETXATTR, 0, "setxattr", "reqs");
}

void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
{
    lvars->module_vars = lprocfs_mds_module_vars;
    lvars->obd_vars = lprocfs_mds_obd_vars;
}

void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars)
{
    lvars->module_vars = lprocfs_mdt_module_vars;
    lvars->obd_vars = lprocfs_mdt_obd_vars;
}
#endif