X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flov%2Flproc_lov.c;h=318a060900f02a568897eb0d0beb88f3587f2dfe;hp=4845f41520c3ed28575f9d57ae211f6e8ee6f66d;hb=3ac7c325efaf3a2537fafc79168d87de67982acd;hpb=6759c2cb63625eb517613a8cd52047de8747d99c diff --git a/lustre/lov/lproc_lov.c b/lustre/lov/lproc_lov.c index 4845f41..318a060 100644 --- a/lustre/lov/lproc_lov.c +++ b/lustre/lov/lproc_lov.c @@ -1,204 +1,302 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (C) 2002 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of Lustre, http://www.lustre.org. + * 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. * - * Lustre is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License 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). * - * Lustre 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 for more details. + * 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 * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * 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 */ -#define DEBUG_SUBSYSTEM S_CLASS - -#include -#include - /* - * Common STATUS namespace + * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + */ +#define DEBUG_SUBSYSTEM S_CLASS + +#include +#include +#include +#include +#include +#include "lov_internal.h" -int rd_uuid(char* page, char **start, off_t off, int count, int *eof, - void *data) +#ifdef LPROCFS +static int lov_rd_stripesize(char *page, char **start, off_t off, int count, + int *eof, void *data) { - int len = 0; - struct obd_device* dev = (struct obd_device*)data; - len += snprintf(page, count, "%s\n", dev->obd_uuid); - return len; - + struct obd_device *dev = (struct obd_device *)data; + struct lov_desc *desc; + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_size); } -int rd_stripesize(char* page, char **start, off_t off, int count, int *eof, - void *data) + +static int lov_wr_stripesize(struct file *file, const char *buffer, + unsigned long count, void *data) { - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, LPU64"\n", - (__u64)(lov->desc.ld_default_stripe_size)); + struct obd_device *dev = (struct obd_device *)data; + struct lov_desc *desc; + __u64 val; + int rc; - return len; + 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; } -int rd_stripeoffset(char* page, char **start, off_t off, int count, int *eof, - void *data) +static int lov_rd_stripeoffset(char *page, char **start, off_t off, int count, + int *eof, void *data) { - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, LPU64"\n", - lov->desc.ld_default_stripe_offset); - return len; + struct obd_device *dev = (struct obd_device *)data; + struct lov_desc *desc; + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, LPU64"\n", desc->ld_default_stripe_offset); } -int rd_stripetype(char* page, char **start, off_t off, int count, int *eof, - void *data) +static int lov_wr_stripeoffset(struct file *file, const char *buffer, + unsigned long count, void *data) { - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, LPU64"\n", - (__u64)(lov->desc.ld_pattern)); - return len; + struct obd_device *dev = (struct obd_device *)data; + 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; } -int rd_stripecount(char* page, char **start, off_t off, int count, int *eof, - void *data) -{ + +static int lov_rd_stripetype(char *page, char **start, off_t off, int count, + int *eof, void *data) +{ struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, LPU64"\n", - (__u64)(lov->desc.ld_default_stripe_count)); - return len; + struct lov_desc *desc; + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, "%u\n", desc->ld_pattern); } -int rd_numobd(char* page, char **start, off_t off, int count, int *eof, - void *data) -{ - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov=&dev->u.lov; - len += snprintf(page, count, LPU64"\n", - (__u64)(lov->desc.ld_tgt_count)); - return len; +static int lov_wr_stripetype(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + struct obd_device *dev = (struct obd_device *)data; + 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; } -int rd_activeobd(char* page, char **start, off_t off, int count, int *eof, - void *data) -{ - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, LPU64"\n", - (__u64)(lov->desc.ld_active_tgt_count)); - return len; +static int lov_rd_stripecount(char *page, char **start, off_t off, int count, + int *eof, void *data) +{ + struct obd_device *dev = (struct obd_device *)data; + struct lov_desc *desc; + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, "%d\n", + (__s16)(desc->ld_default_stripe_count + 1) - 1); } -int rd_blksize(char* page, char **start, off_t off, int count, int *eof, - void *data) +static int lov_wr_stripecount(struct file *file, const char *buffer, + unsigned long count, void *data) { - return 0; + struct obd_device *dev = (struct obd_device *)data; + 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; } +static int lov_rd_numobd(char *page, char **start, off_t off, int count, + int *eof, void *data) +{ + struct obd_device *dev = (struct obd_device*)data; + struct lov_desc *desc; + + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, "%u\n", desc->ld_tgt_count); -int rd_kbtotal(char* page, char **start, off_t off, int count, int *eof, - void *data) +} + +static int lov_rd_activeobd(char *page, char **start, off_t off, int count, + int *eof, void *data) { - return 0; + struct obd_device* dev = (struct obd_device*)data; + struct lov_desc *desc; + + LASSERT(dev != NULL); + desc = &dev->u.lov.desc; + *eof = 1; + return snprintf(page, count, "%u\n", desc->ld_active_tgt_count); } +static int lov_rd_desc_uuid(char *page, char **start, off_t off, int count, + int *eof, void *data) +{ + struct obd_device *dev = (struct obd_device*) data; + struct lov_obd *lov; + + LASSERT(dev != NULL); + lov = &dev->u.lov; + *eof = 1; + return snprintf(page, count, "%s\n", lov->desc.ld_uuid.uuid); +} -int rd_kbfree(char* page, char **start, off_t off, int count, int *eof, - void *data) +static void *lov_tgt_seq_start(struct seq_file *p, loff_t *pos) { - return 0; + 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; } -int rd_filestotal(char* page, char **start, off_t off, int count, int *eof, - void *data) +static void lov_tgt_seq_stop(struct seq_file *p, void *v) { - return 0; } -int rd_filesfree(char* page, char **start, off_t off, int count, int *eof, - void *data) +static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos) { - return 0; + 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; } -int rd_filegroups(char* page, char **start, off_t off, int count, int *eof, - void *data) +static int lov_tgt_seq_show(struct seq_file *p, void *v) { - return 0; + 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"); } -int rd_target(char* page, char **start, off_t off, int count, int *eof, - void *data) +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 obd_device* dev = (struct obd_device*)data; - int len = 0, i = 0; - struct lov_obd* lov = &dev->u.lov; - struct lov_tgt_desc* tgts = lov->tgts; - while(i < lov->desc.ld_tgt_count){ - len += snprintf(page, count, "%d: %s\n", i, tgts->uuid); - i++; - tgts++; + struct proc_dir_entry *dp = PDE(inode); + struct seq_file *seq; + int rc; + + LPROCFS_ENTRY_AND_CHECK(dp); + rc = seq_open(file, &lov_tgt_sops); + if (rc) { + LPROCFS_EXIT(); + return rc; } - - return len; + + seq = file->private_data; + seq->private = dp->data; + return 0; } -int rd_mdc(char* page, char **start, off_t off, int count, int *eof, void *data) -{ - struct obd_device* dev = (struct obd_device*)data; - int len = 0; - struct lov_obd* lov = &dev->u.lov; - len += snprintf(page, count, "%s\n", lov->mdcobd->obd_uuid); - return len; -} - -struct lprocfs_vars status_var_nm_1[] = { - {"status/uuid", rd_uuid, 0, 0}, - {"status/stripesize",rd_stripesize, 0, 0}, - {"status/stripeoffset",rd_stripeoffset, 0, 0}, - {"status/stripecount",rd_stripecount, 0, 0}, - {"status/stripetype", rd_stripetype, 0, 0}, - {"status/numobd",rd_numobd, 0, 0}, - {"status/activeobd", rd_activeobd, 0, 0}, - {"status/filestotal", rd_filestotal, 0, 0}, - {"status/filesfree", rd_filesfree, 0, 0}, - {"status/filegroups", rd_filegroups, 0, 0}, - {"status/blocksize", rd_blksize, 0, 0}, - {"status/kbytestotal", rd_kbtotal, 0, 0}, - {"status/kbytesfree", rd_kbfree, 0, 0}, - {"status/target_obd", rd_target, 0, 0}, - {"status/target_mdc", rd_mdc, 0, 0}, - - {0} + +struct lprocfs_vars lprocfs_lov_obd_vars[] = { + { "uuid", lprocfs_rd_uuid, 0, 0 }, + { "stripesize", lov_rd_stripesize, lov_wr_stripesize, 0 }, + { "stripeoffset", lov_rd_stripeoffset, lov_wr_stripeoffset, 0 }, + { "stripecount", lov_rd_stripecount, lov_wr_stripecount, 0 }, + { "stripetype", lov_rd_stripetype, lov_wr_stripetype, 0 }, + { "numobd", lov_rd_numobd, 0, 0 }, + { "activeobd", lov_rd_activeobd, 0, 0 }, + { "filestotal", lprocfs_rd_filestotal, 0, 0 }, + { "filesfree", lprocfs_rd_filesfree, 0, 0 }, + /*{ "filegroups", lprocfs_rd_filegroups, 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 }, + { "desc_uuid", lov_rd_desc_uuid, 0, 0 }, + { 0 } }; -int rd_numrefs(char* page, char **start, off_t off, int count, int *eof, - void *data) + +static struct lprocfs_vars lprocfs_lov_module_vars[] = { + { "num_refs", lprocfs_rd_numrefs, 0, 0 }, + { 0 } +}; + +void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars) { - struct obd_type* class = (struct obd_type*)data; - int len = 0; - len += snprintf(page, count, "%d\n", class->typ_refcnt); - return len; + lvars->module_vars = lprocfs_lov_module_vars; + lvars->obd_vars = lprocfs_lov_obd_vars; } -struct lprocfs_vars status_class_var[]={ - {"status/num_refs", rd_numrefs, 0, 0}, - {0} +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 */