diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/fld/lproc_fld.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/fld/lproc_fld.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c deleted file mode 100644 index 1a6a76110c3e..000000000000 --- a/drivers/staging/lustre/lustre/fld/lproc_fld.c +++ /dev/null @@ -1,155 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * lustre/fld/lproc_fld.c - * - * FLD (FIDs Location Database) - * - * Author: Yury Umanets <umka@clusterfs.com> - * Di Wang <di.wang@whamcloud.com> - */ - -#define DEBUG_SUBSYSTEM S_FLD - -#include <linux/libcfs/libcfs.h> -#include <linux/module.h> - -#include <obd.h> -#include <obd_class.h> -#include <obd_support.h> -#include <lustre_req_layout.h> -#include <lustre_fld.h> -#include <lustre_fid.h> -#include "fld_internal.h" - -static int -fld_debugfs_targets_seq_show(struct seq_file *m, void *unused) -{ - struct lu_client_fld *fld = (struct lu_client_fld *)m->private; - struct lu_fld_target *target; - - spin_lock(&fld->lcf_lock); - list_for_each_entry(target, &fld->lcf_targets, ft_chain) - seq_printf(m, "%s\n", fld_target_name(target)); - spin_unlock(&fld->lcf_lock); - - return 0; -} - -static int -fld_debugfs_hash_seq_show(struct seq_file *m, void *unused) -{ - struct lu_client_fld *fld = (struct lu_client_fld *)m->private; - - spin_lock(&fld->lcf_lock); - seq_printf(m, "%s\n", fld->lcf_hash->fh_name); - spin_unlock(&fld->lcf_lock); - - return 0; -} - -static ssize_t -fld_debugfs_hash_seq_write(struct file *file, - const char __user *buffer, - size_t count, loff_t *off) -{ - struct lu_client_fld *fld; - struct lu_fld_hash *hash = NULL; - char fh_name[8]; - int i; - - if (count > sizeof(fh_name)) - return -ENAMETOOLONG; - - if (copy_from_user(fh_name, buffer, count) != 0) - return -EFAULT; - - fld = ((struct seq_file *)file->private_data)->private; - - for (i = 0; fld_hash[i].fh_name; i++) { - if (count != strlen(fld_hash[i].fh_name)) - continue; - - if (!strncmp(fld_hash[i].fh_name, fh_name, count)) { - hash = &fld_hash[i]; - break; - } - } - - if (hash) { - spin_lock(&fld->lcf_lock); - fld->lcf_hash = hash; - spin_unlock(&fld->lcf_lock); - - CDEBUG(D_INFO, "%s: Changed hash to \"%s\"\n", - fld->lcf_name, hash->fh_name); - } - - return count; -} - -static ssize_t -fld_debugfs_cache_flush_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - struct lu_client_fld *fld = file->private_data; - - fld_cache_flush(fld->lcf_cache); - - CDEBUG(D_INFO, "%s: Lookup cache is flushed\n", fld->lcf_name); - - return count; -} - -static int -fld_debugfs_cache_flush_release(struct inode *inode, struct file *file) -{ - file->private_data = NULL; - return 0; -} - -static const struct file_operations fld_debugfs_cache_flush_fops = { - .owner = THIS_MODULE, - .open = simple_open, - .write = fld_debugfs_cache_flush_write, - .release = fld_debugfs_cache_flush_release, -}; - -LPROC_SEQ_FOPS_RO(fld_debugfs_targets); -LPROC_SEQ_FOPS(fld_debugfs_hash); - -struct lprocfs_vars fld_client_debugfs_list[] = { - { "targets", &fld_debugfs_targets_fops }, - { "hash", &fld_debugfs_hash_fops }, - { "cache_flush", &fld_debugfs_cache_flush_fops }, - { NULL } -}; |