| /* |
| * 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 */ |