#include <lustre_fid.h>
#include <lprocfs_status.h>
#include "fid_internal.h"
+#include <md_object.h>
#ifdef LPROCFS
/*
LASSERT(range != NULL);
+ if (count == 5 && strcmp(buffer, "clear") == 0) {
+ memset(range, 0, sizeof(*range));
+ RETURN(0);
+ }
+
rc = sscanf(buffer, "[%llx - %llx]\n",
(long long unsigned *)&tmp.lsr_start,
(long long unsigned *)&tmp.lsr_end);
seq_server_proc_read_server, NULL, NULL },
{ NULL }
};
+
+struct fld_seq_param {
+ struct lu_env fsp_env;
+ struct dt_it *fsp_it;
+ struct lu_server_fld *fsp_fld;
+ struct lu_server_seq *fsp_seq;
+ unsigned int fsp_stop:1;
+};
+
+/*
+ * XXX: below is a copy of the functions in lustre/fld/lproc_fld.c.
+ * we want to avoid this duplication either by exporting the
+ * functions or merging fid and fld into a single module.
+ */
+static void *fldb_seq_start(struct seq_file *p, loff_t *pos)
+{
+ struct fld_seq_param *param = p->private;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+
+ if (param == NULL || param->fsp_stop)
+ return NULL;
+
+ fld = param->fsp_fld;
+ obj = fld->lsf_obj;
+ LASSERT(obj != NULL);
+ iops = &obj->do_index_ops->dio_it;
+
+ iops->load(¶m->fsp_env, param->fsp_it, *pos);
+
+ *pos = be64_to_cpu(*(__u64 *)iops->key(¶m->fsp_env, param->fsp_it));
+ return param;
+}
+
+static void fldb_seq_stop(struct seq_file *p, void *v)
+{
+ struct fld_seq_param *param = p->private;
+ const struct dt_it_ops *iops;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+
+ if (param == NULL)
+ return;
+
+ fld = param->fsp_fld;
+ obj = fld->lsf_obj;
+ LASSERT(obj != NULL);
+ iops = &obj->do_index_ops->dio_it;
+
+ iops->put(¶m->fsp_env, param->fsp_it);
+}
+
+static void *fldb_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+ struct fld_seq_param *param = p->private;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+ int rc;
+
+ if (param == NULL || param->fsp_stop)
+ return NULL;
+
+ fld = param->fsp_fld;
+ obj = fld->lsf_obj;
+ LASSERT(obj != NULL);
+ iops = &obj->do_index_ops->dio_it;
+
+ rc = iops->next(¶m->fsp_env, param->fsp_it);
+ if (rc > 0) {
+ param->fsp_stop = 1;
+ return NULL;
+ }
+
+ *pos = be64_to_cpu(*(__u64 *)iops->key(¶m->fsp_env, param->fsp_it));
+ return param;
+}
+
+static int fldb_seq_show(struct seq_file *p, void *v)
+{
+ struct fld_seq_param *param = p->private;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+ struct lu_seq_range fld_rec;
+ int rc;
+
+ if (param == NULL || param->fsp_stop)
+ return 0;
+
+ fld = param->fsp_fld;
+ obj = fld->lsf_obj;
+ LASSERT(obj != NULL);
+ iops = &obj->do_index_ops->dio_it;
+
+ rc = iops->rec(¶m->fsp_env, param->fsp_it,
+ (struct dt_rec *)&fld_rec, 0);
+ if (rc != 0) {
+ CERROR("%s: read record error: rc = %d\n",
+ fld->lsf_name, rc);
+ } else if (fld_rec.lsr_start != 0) {
+ range_be_to_cpu(&fld_rec, &fld_rec);
+ rc = seq_printf(p, DRANGE"\n", PRANGE(&fld_rec));
+ }
+
+ return rc;
+}
+
+struct seq_operations fldb_sops = {
+ .start = fldb_seq_start,
+ .stop = fldb_seq_stop,
+ .next = fldb_seq_next,
+ .show = fldb_seq_show,
+};
+
+static int fldb_seq_open(struct inode *inode, struct file *file)
+{
+ struct proc_dir_entry *dp = PDE(inode);
+ struct seq_file *seq;
+ struct lu_server_seq *ss = (struct lu_server_seq *)dp->data;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+ struct fld_seq_param *param = NULL;
+ int env_init = 0;
+ int rc;
+
+ fld = ss->lss_site->ss_server_fld;
+ LASSERT(fld != NULL);
+
+ LPROCFS_ENTRY_AND_CHECK(dp);
+ rc = seq_open(file, &fldb_sops);
+ if (rc)
+ GOTO(out, rc);
+
+ obj = fld->lsf_obj;
+ if (obj == NULL) {
+ seq = file->private_data;
+ seq->private = NULL;
+ return 0;
+ }
+
+ OBD_ALLOC_PTR(param);
+ if (param == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ rc = lu_env_init(¶m->fsp_env, LCT_MD_THREAD);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ env_init = 1;
+ iops = &obj->do_index_ops->dio_it;
+ param->fsp_it = iops->init(¶m->fsp_env, obj, 0, NULL);
+ if (IS_ERR(param->fsp_it))
+ GOTO(out, rc = PTR_ERR(param->fsp_it));
+
+ param->fsp_fld = fld;
+ param->fsp_seq = ss;
+ param->fsp_stop = 0;
+
+ seq = file->private_data;
+ seq->private = param;
+out:
+ if (rc != 0) {
+ if (env_init == 1)
+ lu_env_fini(¶m->fsp_env);
+ if (param != NULL)
+ OBD_FREE_PTR(param);
+ LPROCFS_EXIT();
+ }
+ return rc;
+}
+
+static int fldb_seq_release(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq = file->private_data;
+ struct fld_seq_param *param;
+ struct lu_server_fld *fld;
+ struct dt_object *obj;
+ const struct dt_it_ops *iops;
+
+ param = seq->private;
+ if (param == NULL) {
+ lprocfs_seq_release(inode, file);
+ return 0;
+ }
+
+ fld = param->fsp_fld;
+ obj = fld->lsf_obj;
+ LASSERT(obj != NULL);
+ iops = &obj->do_index_ops->dio_it;
+
+ LASSERT(iops != NULL);
+ LASSERT(obj != NULL);
+ LASSERT(param->fsp_it != NULL);
+ iops->fini(¶m->fsp_env, param->fsp_it);
+ lu_env_fini(¶m->fsp_env);
+ OBD_FREE_PTR(param);
+ lprocfs_seq_release(inode, file);
+
+ return 0;
+}
+
+static ssize_t fldb_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct fld_seq_param *param;
+ struct lu_seq_range range;
+ int rc = 0;
+ char *buffer, *_buffer;
+ ENTRY;
+
+ param = seq->private;
+ if (param == NULL)
+ RETURN(-EINVAL);
+
+ OBD_ALLOC(buffer, len + 1);
+ if (buffer == NULL)
+ RETURN(-ENOMEM);
+ memcpy(buffer, buf, len);
+ buffer[len] = 0;
+ _buffer = buffer;
+
+ /*
+ * format - [0x0000000200000007-0x0000000200000008):0:mdt
+ */
+ if (*buffer != '[')
+ GOTO(out, rc = -EINVAL);
+ buffer++;
+
+ range.lsr_start = simple_strtoull(buffer, &buffer, 0);
+ if (*buffer != '-')
+ GOTO(out, rc = -EINVAL);
+ buffer++;
+
+ range.lsr_end = simple_strtoull(buffer, &buffer, 0);
+ if (*buffer != ')')
+ GOTO(out, rc = -EINVAL);
+ buffer++;
+ if (*buffer != ':')
+ GOTO(out, rc = -EINVAL);
+ buffer++;
+
+ range.lsr_index = simple_strtoul(buffer, &buffer, 0);
+ if (*buffer != ':')
+ GOTO(out, rc = -EINVAL);
+ buffer++;
+
+ if (strncmp(buffer, "mdt", 3) == 0)
+ range.lsr_flags = LU_SEQ_RANGE_MDT;
+ else if (strncmp(buffer, "ost", 3) == 0)
+ range.lsr_flags = LU_SEQ_RANGE_OST;
+ else
+ GOTO(out, rc = -EINVAL);
+
+ rc = seq_server_alloc_spec(param->fsp_seq->lss_site->ss_control_seq,
+ &range, ¶m->fsp_env);
+
+out:
+ OBD_FREE(_buffer, len + 1);
+ RETURN(rc < 0 ? rc : len);
+}
+
+const struct file_operations seq_fld_proc_seq_fops = {
+ .owner = THIS_MODULE,
+ .open = fldb_seq_open,
+ .read = seq_read,
+ .write = fldb_seq_write,
+ .release = fldb_seq_release,
+};
+
#endif /* HAVE_SERVER_SUPPORT */
/* Client side procfs stuff */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff