+++ /dev/null
-/*
- * 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, Whamcloud, Inc.
- */
-/*
- * 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 <obd.h>
-#include <obd_class.h>
-#include <lprocfs_status.h>
-#include "mds_internal.h"
-
-#ifdef LPROCFS
-static int lprocfs_mds_rd_evictostnids(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, "%d\n", obd->u.mds.mds_evict_ost_nids);
-}
-
-static int lprocfs_mds_wr_evictostnids(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = data;
- int val, rc;
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- obd->u.mds.mds_evict_ost_nids = !!val;
-
- return count;
-}
-
-#define BUFLEN (UUID_MAX + 4)
-
-static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct ptlrpc_request_set *set;
- struct obd_device *obd = data;
- struct mds_obd *mds = &obd->u.mds;
- char *kbuf;
- char *tmpbuf;
- int rc;
-
- OBD_ALLOC(kbuf, BUFLEN);
- if (kbuf == NULL)
- return -ENOMEM;
-
- /*
- * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
- * bytes into kbuf, to ensure that the string is NUL-terminated.
- * UUID_MAX should include a trailing NUL already.
- */
- if (cfs_copy_from_user(kbuf, buffer,
- min_t(unsigned long, BUFLEN - 1, count))) {
- count = -EFAULT;
- goto out;
- }
- tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
-
- if (strncmp(tmpbuf, "nid:", 4) != 0) {
- count = lprocfs_wr_evict_client(file, buffer, count, data);
- goto out;
- }
-
- set = ptlrpc_prep_set();
- if (set == NULL) {
- count = -ENOMEM;
- goto out;
- }
-
- if (obd->u.mds.mds_evict_ost_nids) {
- rc = obd_set_info_async(NULL, mds->mds_lov_exp,
- sizeof(KEY_EVICT_BY_NID),
- KEY_EVICT_BY_NID, strlen(tmpbuf + 4) + 1,
- tmpbuf + 4, set);
- if (rc)
- CERROR("Failed to evict nid %s from OSTs: rc %d\n",
- tmpbuf + 4, rc);
-
- ptlrpc_check_set(NULL, set);
- }
-
- /* See the comments in function lprocfs_wr_evict_client()
- * in ptlrpc/lproc_ptlrpc.c for details. - jay */
- class_incref(obd, __FUNCTION__, cfs_current());
- LPROCFS_EXIT();
-
- obd_export_evict_by_nid(obd, tmpbuf + 4);
-
-
- rc = ptlrpc_set_wait(set);
- if (rc)
- CERROR("Failed to evict nid %s from OSTs: rc %d\n", tmpbuf + 4,
- rc);
-
- LPROCFS_ENTRY();
- class_decref(obd, __FUNCTION__, cfs_current());
-
- ptlrpc_set_destroy(set);
-out:
- OBD_FREE(kbuf, BUFLEN);
- return count;
-}
-
-#undef BUFLEN
-
-static int lprocfs_wr_atime_diff(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[20], *end;
- unsigned long diff = 0;
-
- if (count > (sizeof(kernbuf) - 1))
- return -EINVAL;
-
- if (cfs_copy_from_user(kernbuf, buffer, count))
- return -EFAULT;
-
- kernbuf[count] = '\0';
-
- diff = simple_strtoul(kernbuf, &end, 0);
- if (kernbuf == end)
- return -EINVAL;
-
- mds->mds_atime_diff = diff;
- return count;
-}
-
-static int lprocfs_rd_atime_diff(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\n", mds->mds_atime_diff);
-}
-
-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_obd_rd_mntdev, 0, 0 },
- { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
- { "hash_stats", lprocfs_obd_rd_hash, 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 },
- { "atime_diff", lprocfs_rd_atime_diff, lprocfs_wr_atime_diff, 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 }
-};
-
-void lprocfs_mds_init_vars(struct lprocfs_static_vars *lvars)
-{
- lvars->module_vars = lprocfs_mds_module_vars;
- lvars->obd_vars = lprocfs_mds_obd_vars;
-}
-
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff