X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ffld%2Flproc_fld.c;h=1bcecdfb973cef9076ce930826199eced699b392;hb=1c41a6ac390bf74a135861efcd576a3b433d3c49;hp=a52b2ee15243487dd2d5344526f2141a42a2bd7e;hpb=9fb46705ae86aa2c0ac29427f0ff24f923560eb7;p=fs%2Flustre-release.git diff --git a/lustre/fld/lproc_fld.c b/lustre/fld/lproc_fld.c index a52b2ee..1bcecdf 100644 --- a/lustre/fld/lproc_fld.c +++ b/lustre/fld/lproc_fld.c @@ -15,11 +15,7 @@ * * 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. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,7 +23,7 @@ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2012, Whamcloud, Inc. + * Copyright (c) 2012, 2016, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -43,90 +39,73 @@ #define DEBUG_SUBSYSTEM S_FLD -#ifdef __KERNEL__ -# include -# include -#else /* __KERNEL__ */ -# include -#endif +#include +#include -#include -#include +#ifdef HAVE_SERVER_SUPPORT #include -#include +#endif #include -#include #include #include #include "fld_internal.h" -#ifdef LPROCFS static int -fld_proc_read_targets(char *page, char **start, off_t off, - int count, int *eof, void *data) +fld_debugfs_targets_seq_show(struct seq_file *m, void *unused) { - struct lu_client_fld *fld = (struct lu_client_fld *)data; + struct lu_client_fld *fld = (struct lu_client_fld *)m->private; struct lu_fld_target *target; - int total = 0, rc; - ENTRY; - - LASSERT(fld != NULL); + ENTRY; spin_lock(&fld->lcf_lock); - cfs_list_for_each_entry(target, - &fld->lcf_targets, ft_chain) - { - rc = snprintf(page, count, "%s\n", - fld_target_name(target)); - page += rc; - count -= rc; - total += rc; - if (count == 0) - break; - } + 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(total); + + RETURN(0); } static int -fld_proc_read_hash(char *page, char **start, off_t off, - int count, int *eof, void *data) +fld_debugfs_hash_seq_show(struct seq_file *m, void *unused) { - struct lu_client_fld *fld = (struct lu_client_fld *)data; - int rc; - ENTRY; - - LASSERT(fld != NULL); + struct lu_client_fld *fld = (struct lu_client_fld *)m->private; + ENTRY; spin_lock(&fld->lcf_lock); - rc = snprintf(page, count, "%s\n", fld->lcf_hash->fh_name); + seq_printf(m, "%s\n", fld->lcf_hash->fh_name); spin_unlock(&fld->lcf_lock); - RETURN(rc); + RETURN(0); } -static int -fld_proc_write_hash(struct file *file, const char *buffer, - unsigned long count, void *data) +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_client_fld *)data; - struct lu_fld_hash *hash = NULL; - int i; - ENTRY; + struct lu_client_fld *fld; + struct lu_fld_hash *hash = NULL; + char fh_name[8]; + int i; + + if (count > sizeof(fh_name)) + return -ENAMETOOLONG; - LASSERT(fld != NULL); + if (copy_from_user(fh_name, buffer, count) != 0) + return -EFAULT; - for (i = 0; fld_hash[i].fh_name != NULL; i++) { - if (count != strlen(fld_hash[i].fh_name)) - continue; + fld = ((struct seq_file *)file->private_data)->private; - if (!strncmp(fld_hash[i].fh_name, buffer, count)) { - hash = &fld_hash[i]; - break; - } - } + 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 != NULL) { + if (hash) { spin_lock(&fld->lcf_lock); fld->lcf_hash = hash; spin_unlock(&fld->lcf_lock); @@ -135,18 +114,17 @@ fld_proc_write_hash(struct file *file, const char *buffer, fld->lcf_name, hash->fh_name); } - RETURN(count); + return count; } -static int -fld_proc_write_cache_flush(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t ldebugfs_cache_flush_seq_write(struct file *file, + const char __user *buffer, + size_t count, loff_t *pos) { - struct lu_client_fld *fld = (struct lu_client_fld *)data; - ENTRY; - - LASSERT(fld != NULL); + struct seq_file *m = file->private_data; + struct lu_client_fld *fld = m->private; + ENTRY; fld_cache_flush(fld->lcf_cache); CDEBUG(D_INFO, "%s: Lookup cache is flushed\n", fld->lcf_name); @@ -154,104 +132,118 @@ fld_proc_write_cache_flush(struct file *file, const char *buffer, RETURN(count); } +LDEBUGFS_SEQ_FOPS_RO(fld_debugfs_targets); +LDEBUGFS_SEQ_FOPS(fld_debugfs_hash); +LDEBUGFS_FOPS_WR_ONLY(fld, cache_flush); + +struct lprocfs_vars fld_client_debugfs_list[] = { + { .name = "targets", + .fops = &fld_debugfs_targets_fops }, + { .name = "hash", + .fops = &fld_debugfs_hash_fops }, + { .name = "cache_flush", + .fops = &fld_cache_flush_fops }, + { NULL } +}; + +#ifdef HAVE_SERVER_SUPPORT struct fld_seq_param { - struct lu_env fsp_env; - struct dt_it *fsp_it; + struct lu_env fsp_env; + struct dt_it *fsp_it; + struct lu_server_fld *fsp_fld; + unsigned int fsp_stop:1; }; static void *fldb_seq_start(struct seq_file *p, loff_t *pos) { - struct lu_server_fld *fld = p->private; - struct dt_object *obj; - const struct dt_it_ops *iops; - struct fld_seq_param *param; + struct fld_seq_param *param = p->private; + struct lu_server_fld *fld; + struct dt_object *obj; + const struct dt_it_ops *iops; + struct dt_key *key; + int rc; - if (fld->lsf_obj == NULL) + if (param == NULL || param->fsp_stop) return NULL; + fld = param->fsp_fld; obj = fld->lsf_obj; + LASSERT(obj != NULL); iops = &obj->do_index_ops->dio_it; - OBD_ALLOC_PTR(param); - if (param == NULL) - return ERR_PTR(-ENOMEM); + rc = iops->load(¶m->fsp_env, param->fsp_it, *pos); + if (rc <= 0) + return NULL; - lu_env_init(¶m->fsp_env, LCT_MD_THREAD); - param->fsp_it = iops->init(¶m->fsp_env, obj, 0, NULL); + key = iops->key(¶m->fsp_env, param->fsp_it); + if (IS_ERR(key)) + return NULL; - iops->load(¶m->fsp_env, param->fsp_it, *pos); + *pos = be64_to_cpu(*(__u64 *)key); return param; } static void fldb_seq_stop(struct seq_file *p, void *v) { - struct lu_server_fld *fld = p->private; - struct dt_object *obj; + struct fld_seq_param *param = p->private; const struct dt_it_ops *iops; - struct fld_seq_param *param = (struct fld_seq_param *)v; + struct lu_server_fld *fld; + struct dt_object *obj; - if (fld->lsf_obj == NULL) + if (param == NULL) return; + fld = param->fsp_fld; obj = fld->lsf_obj; + LASSERT(obj != NULL); iops = &obj->do_index_ops->dio_it; - if (IS_ERR(param) || param == NULL) - return; iops->put(¶m->fsp_env, param->fsp_it); - iops->fini(¶m->fsp_env, param->fsp_it); - lu_env_fini(¶m->fsp_env); - OBD_FREE_PTR(param); - - return; } static void *fldb_seq_next(struct seq_file *p, void *v, loff_t *pos) { - struct lu_server_fld *fld = p->private; + struct fld_seq_param *param = p->private; + struct lu_server_fld *fld; struct dt_object *obj; const struct dt_it_ops *iops; - struct fld_seq_param *param = (struct fld_seq_param *)v; int rc; - if (fld->lsf_obj == NULL) + if (param == NULL || param->fsp_stop) return NULL; + fld = param->fsp_fld; obj = fld->lsf_obj; + LASSERT(obj != NULL); iops = &obj->do_index_ops->dio_it; - iops->get(¶m->fsp_env, param->fsp_it, - (const struct dt_key *)pos); - rc = iops->next(¶m->fsp_env, param->fsp_it); if (rc > 0) { - iops->put(¶m->fsp_env, param->fsp_it); - iops->fini(¶m->fsp_env, param->fsp_it); - lu_env_fini(¶m->fsp_env); - OBD_FREE_PTR(param); + param->fsp_stop = 1; return NULL; } - *pos = *(loff_t *)iops->key(¶m->fsp_env, param->fsp_it); - + *pos = be64_to_cpu(*(__u64 *)iops->key(¶m->fsp_env, param->fsp_it)); return param; } static int fldb_seq_show(struct seq_file *p, void *v) { - struct lu_server_fld *fld = p->private; - struct dt_object *obj = fld->lsf_obj; - struct fld_seq_param *param = (struct fld_seq_param *)v; + struct fld_seq_param *param = p->private; + struct lu_server_fld *fld; + struct dt_object *obj; const struct dt_it_ops *iops; struct fld_thread_info *info; struct lu_seq_range *fld_rec; int rc; - if (fld->lsf_obj == NULL) + if (param == NULL || param->fsp_stop) return 0; + fld = param->fsp_fld; obj = fld->lsf_obj; + LASSERT(obj != NULL); iops = &obj->do_index_ops->dio_it; info = lu_context_key_get(¶m->fsp_env.le_ctx, @@ -264,11 +256,9 @@ static int fldb_seq_show(struct seq_file *p, void *v) fld->lsf_name, rc); } else if (fld_rec->lsr_start != 0) { range_be_to_cpu(fld_rec, fld_rec); - rc = seq_printf(p, DRANGE"\n", PRANGE(fld_rec)); + seq_printf(p, DRANGE"\n", PRANGE(fld_rec)); } - iops->put(¶m->fsp_env, param->fsp_it); - return rc; } @@ -281,37 +271,88 @@ struct seq_operations fldb_sops = { static int fldb_seq_open(struct inode *inode, struct file *file) { - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *seq; - int rc; + struct seq_file *seq; + struct lu_server_fld *fld = inode->i_private; + struct dt_object *obj; + const struct dt_it_ops *iops; + struct fld_seq_param *param = NULL; + int env_init = 0; + int rc; - LPROCFS_ENTRY_AND_CHECK(dp); rc = seq_open(file, &fldb_sops); - if (rc) { - LPROCFS_EXIT(); - return rc; + if (rc) + GOTO(out, rc); + + obj = fld->lsf_obj; + if (obj == NULL) { + seq = file->private_data; + seq->private = NULL; + return 0; } + OBD_ALLOC_PTR(param); + if (param == NULL) + GOTO(out, rc = -ENOMEM); + + rc = lu_env_init(¶m->fsp_env, LCT_MD_THREAD); + if (rc != 0) + GOTO(out, rc); + + env_init = 1; + iops = &obj->do_index_ops->dio_it; + param->fsp_it = iops->init(¶m->fsp_env, obj, 0); + if (IS_ERR(param->fsp_it)) + GOTO(out, rc = PTR_ERR(param->fsp_it)); + + param->fsp_fld = fld; + param->fsp_stop = 0; + seq = file->private_data; - seq->private = dp->data; - return 0; + seq->private = param; +out: + if (rc != 0) { + if (env_init == 1) + lu_env_fini(¶m->fsp_env); + if (param != NULL) + OBD_FREE_PTR(param); + } + return rc; } -struct lprocfs_vars fld_server_proc_list[] = { - { NULL }}; +static int fldb_seq_release(struct inode *inode, struct file *file) +{ + struct seq_file *seq = file->private_data; + struct fld_seq_param *param; + struct lu_server_fld *fld; + struct dt_object *obj; + const struct dt_it_ops *iops; + + param = seq->private; + if (param == NULL) { + lprocfs_seq_release(inode, file); + return 0; + } + + fld = param->fsp_fld; + obj = fld->lsf_obj; + LASSERT(obj != NULL); + iops = &obj->do_index_ops->dio_it; -struct lprocfs_vars fld_client_proc_list[] = { - { "targets", fld_proc_read_targets, NULL, NULL }, - { "hash", fld_proc_read_hash, fld_proc_write_hash, NULL }, - { "cache_flush", NULL, fld_proc_write_cache_flush, NULL }, - { NULL }}; + LASSERT(iops != NULL); + LASSERT(param->fsp_it != NULL); + iops->fini(¶m->fsp_env, param->fsp_it); + lu_env_fini(¶m->fsp_env); + OBD_FREE_PTR(param); + lprocfs_seq_release(inode, file); -struct file_operations fld_proc_seq_fops = { + return 0; +} + +const struct file_operations fld_debugfs_seq_fops = { .owner = THIS_MODULE, .open = fldb_seq_open, .read = seq_read, - .llseek = seq_lseek, - .release = lprocfs_seq_release, + .release = fldb_seq_release, }; -#endif +# endif /* HAVE_SERVER_SUPPORT */