1 files changed, 302 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
new file mode 100644
index 000000000000..5b2c0d88add1
--- /dev/null
+++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c
@@ -0,0 +1,302 @@
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ */
+#define DEBUG_SUBSYSTEM S_CLASS
+
+#include <linux/version.h>
+#include <asm/statfs.h>
+#include <lprocfs_status.h>
+#include <obd_class.h>
+#include <linux/seq_file.h>
+#include "lov_internal.h"
+
+#ifdef LPROCFS
+static int lov_stripesize_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, LPU64"\n", desc->ld_default_stripe_size);
+}
+
+static ssize_t lov_stripesize_seq_write(struct file *file, const char *buffer,
+				    size_t count, loff_t *off)
+{
+	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
+	struct lov_desc *desc;
+	__u64 val;
+	int rc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	rc = lprocfs_write_u64_helper(buffer, count, &val);
+	if (rc)
+		return rc;
+
+	lov_fix_desc_stripe_size(&val);
+	desc->ld_default_stripe_size = val;
+	return count;
+}
+LPROC_SEQ_FOPS(lov_stripesize);
+
+static int lov_stripeoffset_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, LPU64"\n", desc->ld_default_stripe_offset);
+}
+
+static ssize_t lov_stripeoffset_seq_write(struct file *file, const char *buffer,
+				      size_t count, loff_t *off)
+{
+	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
+	struct lov_desc *desc;
+	__u64 val;
+	int rc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	rc = lprocfs_write_u64_helper(buffer, count, &val);
+	if (rc)
+		return rc;
+
+	desc->ld_default_stripe_offset = val;
+	return count;
+}
+LPROC_SEQ_FOPS(lov_stripeoffset);
+
+static int lov_stripetype_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, "%u\n", desc->ld_pattern);
+}
+
+static ssize_t lov_stripetype_seq_write(struct file *file, const char *buffer,
+				    size_t count, loff_t *off)
+{
+	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
+	struct lov_desc *desc;
+	int val, rc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	rc = lprocfs_write_helper(buffer, count, &val);
+	if (rc)
+		return rc;
+
+	lov_fix_desc_pattern(&val);
+	desc->ld_pattern = val;
+	return count;
+}
+LPROC_SEQ_FOPS(lov_stripetype);
+
+static int lov_stripecount_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, "%d\n",
+			(__s16)(desc->ld_default_stripe_count + 1) - 1);
+}
+
+static ssize_t lov_stripecount_seq_write(struct file *file, const char *buffer,
+				     size_t count, loff_t *off)
+{
+	struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
+	struct lov_desc *desc;
+	int val, rc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	rc = lprocfs_write_helper(buffer, count, &val);
+	if (rc)
+		return rc;
+
+	lov_fix_desc_stripe_count(&val);
+	desc->ld_default_stripe_count = val;
+	return count;
+}
+LPROC_SEQ_FOPS(lov_stripecount);
+
+static int lov_numobd_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, "%u\n", desc->ld_tgt_count);
+}
+LPROC_SEQ_FOPS_RO(lov_numobd);
+
+static int lov_activeobd_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_desc *desc;
+
+	LASSERT(dev != NULL);
+	desc = &dev->u.lov.desc;
+	return seq_printf(m, "%u\n", desc->ld_active_tgt_count);
+}
+LPROC_SEQ_FOPS_RO(lov_activeobd);
+
+static int lov_desc_uuid_seq_show(struct seq_file *m, void *v)
+{
+	struct obd_device *dev = (struct obd_device *)m->private;
+	struct lov_obd *lov;
+
+	LASSERT(dev != NULL);
+	lov = &dev->u.lov;
+	return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid);
+}
+LPROC_SEQ_FOPS_RO(lov_desc_uuid);
+
+static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos)
+{
+	struct obd_device *dev = p->private;
+	struct lov_obd *lov = &dev->u.lov;
+
+	while (*pos < lov->desc.ld_tgt_count) {
+		if (lov->lov_tgts[*pos])
+			return lov->lov_tgts[*pos];
+		++*pos;
+	}
+	return NULL;
+}
+
+static void lov_tgt_seq_stop(struct seq_file *p, void *v)
+{
+}
+
+static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+	struct obd_device *dev = p->private;
+	struct lov_obd *lov = &dev->u.lov;
+
+	while (++*pos < lov->desc.ld_tgt_count) {
+		if (lov->lov_tgts[*pos])
+			return lov->lov_tgts[*pos];
+	}
+	return NULL;
+}
+
+static int lov_tgt_seq_show(struct seq_file *p, void *v)
+{
+	struct lov_tgt_desc *tgt = v;
+	return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index,
+			  obd_uuid2str(&tgt->ltd_uuid),
+			  tgt->ltd_active ? "" : "IN");
+}
+
+struct seq_operations lov_tgt_sops = {
+	.start = lov_tgt_seq_start,
+	.stop = lov_tgt_seq_stop,
+	.next = lov_tgt_seq_next,
+	.show = lov_tgt_seq_show,
+};
+
+static int lov_target_seq_open(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq;
+	int rc;
+
+	rc = seq_open(file, &lov_tgt_sops);
+	if (rc)
+		return rc;
+
+	seq = file->private_data;
+	seq->private = PDE_DATA(inode);
+	return 0;
+}
+
+LPROC_SEQ_FOPS_RO_TYPE(lov, uuid);
+LPROC_SEQ_FOPS_RO_TYPE(lov, filestotal);
+LPROC_SEQ_FOPS_RO_TYPE(lov, filesfree);
+LPROC_SEQ_FOPS_RO_TYPE(lov, blksize);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytestotal);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesfree);
+LPROC_SEQ_FOPS_RO_TYPE(lov, kbytesavail);
+
+struct lprocfs_vars lprocfs_lov_obd_vars[] = {
+	{ "uuid",	  &lov_uuid_fops,	  0, 0 },
+	{ "stripesize",   &lov_stripesize_fops,   0 },
+	{ "stripeoffset", &lov_stripeoffset_fops, 0 },
+	{ "stripecount",  &lov_stripecount_fops,  0 },
+	{ "stripetype",   &lov_stripetype_fops,   0 },
+	{ "numobd",       &lov_numobd_fops,	  0, 0 },
+	{ "activeobd",    &lov_activeobd_fops,	  0, 0 },
+	{ "filestotal",   &lov_filestotal_fops,   0, 0 },
+	{ "filesfree",    &lov_filesfree_fops,    0, 0 },
+	/*{ "filegroups", lprocfs_rd_filegroups,  0, 0 },*/
+	{ "blocksize",    &lov_blksize_fops,      0, 0 },
+	{ "kbytestotal",  &lov_kbytestotal_fops,  0, 0 },
+	{ "kbytesfree",   &lov_kbytesfree_fops,   0, 0 },
+	{ "kbytesavail",  &lov_kbytesavail_fops,  0, 0 },
+	{ "desc_uuid",    &lov_desc_uuid_fops,    0, 0 },
+	{ 0 }
+};
+
+LPROC_SEQ_FOPS_RO_TYPE(lov, numrefs);
+
+static struct lprocfs_vars lprocfs_lov_module_vars[] = {
+	{ "num_refs",     &lov_numrefs_fops,     0, 0 },
+	{ 0 }
+};
+
+void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars)
+{
+    lvars->module_vars  = lprocfs_lov_module_vars;
+    lvars->obd_vars     = lprocfs_lov_obd_vars;
+}
+
+struct file_operations lov_proc_target_fops = {
+	.owner   = THIS_MODULE,
+	.open    = lov_target_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = lprocfs_seq_release,
+};
+#endif /* LPROCFS */