*
* 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
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* lustre/include/lprocfs_status.h
*
- * Top level header file for LProc SNMP
+ * Top level header file for LProc
*
* Author: Hariharan Thantry thantry@users.sourceforge.net
*/
-#ifndef _LPROCFS_SNMP_H
-#define _LPROCFS_SNMP_H
+#ifndef _LPROCFS_STATUS_H
+#define _LPROCFS_STATUS_H
+
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/rwsem.h>
+#include <linux/spinlock.h>
+#include <linux/seq_file.h>
#include <lustre/lustre_idl.h>
-#include <libcfs/params_tree.h>
-#ifndef HAVE_ONLY_PROCFS_SEQ
struct lprocfs_vars {
const char *name;
- read_proc_t *read_fptr;
- write_proc_t *write_fptr;
- void *data;
- const struct file_operations *fops;
- /**
- * /proc file mode.
- */
- mode_t proc_mode;
-};
-
-struct lprocfs_static_vars {
- struct lprocfs_vars *module_vars;
- struct lprocfs_vars *obd_vars;
-};
-
-#endif
-
-struct lprocfs_seq_vars {
- const char *name;
const struct file_operations *fops;
void *data;
/**
#define JOBSTATS_JOBID_VAR_MAX_LEN 20
#define JOBSTATS_DISABLE "disable"
#define JOBSTATS_PROCNAME_UID "procname_uid"
+#define JOBSTATS_NODELOCAL "nodelocal"
typedef void (*cntr_init_callback)(struct lprocfs_stats *stats);
struct obd_job_stats {
- cfs_hash_t *ojs_hash;
- struct list_head ojs_list;
- rwlock_t ojs_lock; /* protect the obj_list */
- cntr_init_callback ojs_cntr_init_fn;
- int ojs_cntr_num;
- int ojs_cleanup_interval;
- time_t ojs_last_cleanup;
+ struct cfs_hash *ojs_hash; /* hash of jobids */
+ struct list_head ojs_list; /* list of job_stat structs */
+ rwlock_t ojs_lock; /* protect ojs_list/js_list */
+ unsigned int ojs_cleanup_interval;/* seconds before expiry */
+ time_t ojs_last_cleanup; /* previous cleanup time */
+ cntr_init_callback ojs_cntr_init_fn;/* lprocfs_stats initializer */
+ unsigned short ojs_cntr_num; /* number of stats in struct */
+ bool ojs_cleaning; /* currently expiring stats */
};
-#ifdef LPROCFS
-
-extern int lprocfs_stats_alloc_one(struct lprocfs_stats *stats,
- unsigned int cpuid);
-
-/**
- * Lock statistics structure for access, possibly only on this CPU.
- *
- * The statistics struct may be allocated with per-CPU structures for
- * efficient concurrent update (usually only on server-wide stats), or
- * as a single global struct (e.g. for per-client or per-job statistics),
- * so the required locking depends on the type of structure allocated.
- *
- * For per-CPU statistics, pin the thread to the current cpuid so that
- * will only access the statistics for that CPU. If the stats structure
- * for the current CPU has not been allocated (or previously freed),
- * allocate it now. The per-CPU statistics do not need locking since
- * the thread is pinned to the CPU during update.
- *
- * For global statistics, lock the stats structure to prevent concurrent update.
- *
- * \param[in] stats statistics structure to lock
- * \param[in] opc type of operation:
- * LPROCFS_GET_SMP_ID: "lock" and return current CPU index
- * for incrementing statistics for that CPU
- * LPROCFS_GET_NUM_CPU: "lock" and return number of used
- * CPU indices to iterate over all indices
- * \param[out] flags CPU interrupt saved state for IRQ-safe locking
- *
- * \retval cpuid of current thread or number of allocated structs
- * \retval negative on error (only for opc LPROCFS_GET_SMP_ID + per-CPU stats)
- */
-static inline int lprocfs_stats_lock(struct lprocfs_stats *stats,
- enum lprocfs_stats_lock_ops opc,
- unsigned long *flags)
-{
- if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
- if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
- spin_lock_irqsave(&stats->ls_lock, *flags);
- else
- spin_lock(&stats->ls_lock);
- return opc == LPROCFS_GET_NUM_CPU ? 1 : 0;
- }
+#ifdef CONFIG_PROC_FS
- switch (opc) {
- case LPROCFS_GET_SMP_ID: {
- unsigned int cpuid = get_cpu();
-
- if (unlikely(stats->ls_percpu[cpuid] == NULL)) {
- int rc = lprocfs_stats_alloc_one(stats, cpuid);
- if (rc < 0) {
- put_cpu();
- return rc;
- }
- }
- return cpuid;
- }
- case LPROCFS_GET_NUM_CPU:
- return stats->ls_biggest_alloc_num;
- default:
- LBUG();
- }
-}
-
-/**
- * Unlock statistics structure after access.
- *
- * Unlock the lock acquired via lprocfs_stats_lock() for global statistics,
- * or unpin this thread from the current cpuid for per-CPU statistics.
- *
- * This function must be called using the same arguments as used when calling
- * lprocfs_stats_lock() so that the correct operation can be performed.
- *
- * \param[in] stats statistics structure to unlock
- * \param[in] opc type of operation (current cpuid or number of structs)
- * \param[in] flags CPU interrupt saved state for IRQ-safe locking
- */
-static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats,
- enum lprocfs_stats_lock_ops opc,
- unsigned long *flags)
-{
- if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) {
- if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
- spin_unlock_irqrestore(&stats->ls_lock, *flags);
- else
- spin_unlock(&stats->ls_lock);
- } else if (opc == LPROCFS_GET_SMP_ID) {
- put_cpu();
- }
-}
+int lprocfs_stats_alloc_one(struct lprocfs_stats *stats,
+ unsigned int cpuid);
+int lprocfs_stats_lock(struct lprocfs_stats *stats,
+ enum lprocfs_stats_lock_ops opc,
+ unsigned long *flags);
+void lprocfs_stats_unlock(struct lprocfs_stats *stats,
+ enum lprocfs_stats_lock_ops opc,
+ unsigned long *flags);
static inline unsigned int
lprocfs_stats_counter_size(struct lprocfs_stats *stats)
struct lprocfs_counter_header *header,
enum lprocfs_stats_flags flags,
enum lprocfs_fields_flags field);
-static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats,
- int idx,
- enum lprocfs_fields_flags field)
-{
- unsigned int i;
- unsigned int num_cpu;
- unsigned long flags = 0;
- __u64 ret = 0;
-
- LASSERT(stats != NULL);
-
- num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags);
- for (i = 0; i < num_cpu; i++) {
- if (stats->ls_percpu[i] == NULL)
- continue;
- ret += lprocfs_read_helper(
- lprocfs_stats_counter_get(stats, i, idx),
- &stats->ls_cnt_header[idx], stats->ls_flags,
- field);
- }
- lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags);
- return ret;
-}
+u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
+ enum lprocfs_fields_flags field);
extern struct lprocfs_stats *
lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags);
extern void lprocfs_free_per_client_stats(struct obd_device *obd);
#ifdef HAVE_SERVER_SUPPORT
extern ssize_t
-lprocfs_nid_stats_clear_seq_write(struct file *file, const char *buffer,
+lprocfs_nid_stats_clear_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
extern int lprocfs_nid_stats_clear_seq_show(struct seq_file *file, void *data);
#endif
struct lprocfs_stats *stats);
/* lprocfs_status.c */
-#ifndef HAVE_ONLY_PROCFS_SEQ
extern int lprocfs_add_vars(struct proc_dir_entry *root,
- struct lprocfs_vars *var,
- void *data);
-
-extern struct proc_dir_entry *lprocfs_register(const char *name,
- struct proc_dir_entry *parent,
- struct lprocfs_vars *list,
- void *data);
-#endif
-extern int lprocfs_seq_add_vars(struct proc_dir_entry *root,
- struct lprocfs_seq_vars *var,
- void *data);
-
+ struct lprocfs_vars *var, void *data);
extern struct proc_dir_entry *
-lprocfs_seq_register(const char *name, struct proc_dir_entry *parent,
- struct lprocfs_seq_vars *list, void *data);
+lprocfs_register(const char *name, struct proc_dir_entry *parent,
+ struct lprocfs_vars *list, void *data);
extern void lprocfs_remove(struct proc_dir_entry **root);
extern void lprocfs_remove_proc_entry(const char *name,
struct proc_dir_entry *parent);
-#ifndef HAVE_ONLY_PROCFS_SEQ
-extern void lprocfs_try_remove_proc_entry(const char *name,
- struct proc_dir_entry *parent);
+#ifndef HAVE_REMOVE_PROC_SUBTREE
+extern int remove_proc_subtree(const char *name,
+ struct proc_dir_entry *parent);
+#define PDE_DATA(inode) (PDE(inode)->data)
-extern struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *root,
- const char *name);
+static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
+{
+ struct proc_dir_entry *dp = PDE(inode);
+ int deleted = 0;
+
+ spin_lock(&(dp)->pde_unload_lock);
+ if (dp->proc_fops == NULL)
+ deleted = 1;
+ spin_unlock(&(dp)->pde_unload_lock);
+ if (deleted)
+ return -ENODEV;
+ return 0;
+}
+#else
+static inline int LPROCFS_ENTRY_CHECK(struct inode *inode)
+{ return 0; }
#endif
extern int lprocfs_obd_setup(struct obd_device *dev);
extern int lprocfs_obd_cleanup(struct obd_device *obd);
extern int lprocfs_num_exports_seq_show(struct seq_file *m, void *data);
#endif
struct adaptive_timeout;
-extern int lprocfs_seq_at_hist_helper(struct seq_file *m,
- struct adaptive_timeout *at);
+extern int lprocfs_at_hist_helper(struct seq_file *m,
+ struct adaptive_timeout *at);
extern int lprocfs_timeouts_seq_show(struct seq_file *m, void *data);
extern ssize_t
-lprocfs_timeouts_seq_write(struct file *file, const char *buffer,
+lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
#ifdef HAVE_SERVER_SUPPORT
-#ifndef HAVE_ONLY_PROCFS_SEQ
-extern ssize_t lprocfs_fops_read(struct file *f, char __user *buf,
- size_t size, loff_t *ppos);
-extern ssize_t lprocfs_fops_write(struct file *f, const char __user *buf,
- size_t size, loff_t *ppos);
-#endif
extern ssize_t
-lprocfs_evict_client_seq_write(struct file *file, const char *buffer,
+lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
#endif
extern ssize_t
-lprocfs_ping_seq_write(struct file *file, const char *buffer,
+lprocfs_ping_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
extern ssize_t
lprocfs_import_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
extern int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *data);
extern ssize_t
-lprocfs_pinger_recov_seq_write(struct file *file, const char *buffer,
+lprocfs_pinger_recov_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
/* Statfs helpers */
extern int lprocfs_filestotal_seq_show(struct seq_file *m, void *data);
extern int lprocfs_filesfree_seq_show(struct seq_file *m, void *data);
-extern int lprocfs_write_helper(const char __user *buffer, unsigned long count,
- int *val);
-extern int lprocfs_write_frac_helper(const char __user *buffer,
- unsigned long count,
- int *val, int mult);
extern int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult);
extern int lprocfs_read_frac_helper(char *buffer, unsigned long count,
long val, int mult);
-extern int lprocfs_write_u64_helper(const char __user *buffer,
- unsigned long count, __u64 *val);
-extern int lprocfs_write_frac_u64_helper(const char __user *buffer,
- unsigned long count,
- __u64 *val, int mult);
+extern int lprocfs_str_to_s64(const char __user *buffer, unsigned long count,
+ __s64 *val);
+extern int lprocfs_str_with_units_to_s64(const char __user *buffer,
+ unsigned long count, __s64 *val,
+ char defunit);
char *lprocfs_find_named_value(const char *buffer, const char *name,
size_t *count);
void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value);
/* lprocfs_status.c: IR factor */
int lprocfs_ir_factor_seq_show(struct seq_file *m, void *data);
ssize_t
-lprocfs_ir_factor_seq_write(struct file *file, const char *buffer,
+lprocfs_ir_factor_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
#endif
extern int lprocfs_single_release(struct inode *, struct file *);
cntr_init_callback fn);
int lprocfs_job_interval_seq_show(struct seq_file *m, void *data);
ssize_t
-lprocfs_job_interval_seq_write(struct file *file, const char *buffer,
+lprocfs_job_interval_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off);
/* lproc_status.c */
int lprocfs_recovery_time_soft_seq_show(struct seq_file *m, void *data);
ssize_t lprocfs_recovery_time_soft_seq_write(struct file *file,
- const char *buffer,
+ const char __user *buffer,
size_t count, loff_t *off);
int lprocfs_recovery_time_hard_seq_show(struct seq_file *m, void *data);
ssize_t
-lprocfs_recovery_time_hard_seq_write(struct file *file, const char *buffer,
- size_t count, loff_t *off);
+lprocfs_recovery_time_hard_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off);
int lprocfs_target_instance_seq_show(struct seq_file *m, void *data);
#endif
int lprocfs_obd_max_pages_per_rpc_seq_show(struct seq_file *m, void *data);
ssize_t
-lprocfs_obd_max_pages_per_rpc_seq_write(struct file *file, const char *buffer,
- size_t count, loff_t *off);
+lprocfs_obd_max_pages_per_rpc_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off);
struct root_squash_info;
int lprocfs_wr_root_squash(const char __user *buffer, unsigned long count,
int lprocfs_wr_nosquash_nids(const char __user *buffer, unsigned long count,
struct root_squash_info *squash, char *name);
-/* all quota proc functions */
-extern int lprocfs_quota_rd_bunit(char *page, char **start,
- off_t off, int count,
- int *eof, void *data);
-extern int lprocfs_quota_wr_bunit(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_btune(char *page, char **start,
- off_t off, int count,
- int *eof, void *data);
-extern int lprocfs_quota_wr_btune(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_iunit(char *page, char **start,
- off_t off, int count,
- int *eof, void *data);
-extern int lprocfs_quota_wr_iunit(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_itune(char *page, char **start,
- off_t off, int count,
- int *eof, void *data);
-extern int lprocfs_quota_wr_itune(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_type(char *page, char **start, off_t off, int count,
- int *eof, void *data);
-extern int lprocfs_quota_wr_type(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_switch_seconds(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_switch_seconds(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_sync_blk(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_switch_qs(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_switch_qs(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_boundary_factor(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_boundary_factor(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_least_bunit(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_least_bunit(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_least_iunit(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_least_iunit(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-extern int lprocfs_quota_rd_qs_factor(char *page, char **start, off_t off,
- int count, int *eof, void *data);
-extern int lprocfs_quota_wr_qs_factor(struct file *file,
- const char *buffer,
- unsigned long count, void *data);
-#else
-/* LPROCFS is not defined */
+#else /* !CONFIG_PROC_FS */
#define proc_lustre_root NULL
{ return; }
#ifdef HAVE_SERVER_SUPPORT
static inline
-ssize_t lprocfs_nid_stats_seq_write(struct file *file, const char *buffer,
- size_t count, loff_t *off)
+ssize_t lprocfs_nid_stats_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{return 0;}
static inline
int lprocfs_nid_stats_clear_seq_show(struct seq_file *m, void *data)
lprocfs_add_symlink(const char *name, struct proc_dir_entry *parent,
const char *format, ...)
{return NULL; }
-#ifndef HAVE_ONLY_PROCFS_SEQ
-static inline struct proc_dir_entry *
-lprocfs_register(const char *name, struct proc_dir_entry *parent,
- struct lprocfs_vars *list, void *data)
-{ return NULL; }
static inline int lprocfs_add_vars(struct proc_dir_entry *root,
- struct lprocfs_vars *var,
- void *data)
-{ return 0; }
-#endif
-static inline int lprocfs_seq_add_vars(struct proc_dir_entry *root,
- struct lprocfs_seq_vars *var,
- void *data)
+ struct lprocfs_vars *var, void *data)
{ return 0; }
static inline struct proc_dir_entry *
-lprocfs_seq_register(const char *name, struct proc_dir_entry *parent,
- struct lprocfs_seq_vars *list, void *data)
+lprocfs_register(const char *name, struct proc_dir_entry *parent,
+ struct lprocfs_vars *list, void *data)
{ return NULL; }
static inline void lprocfs_remove(struct proc_dir_entry **root)
{ return; }
static inline void lprocfs_remove_proc_entry(const char *name,
struct proc_dir_entry *parent)
{ return; }
-#ifndef HAVE_ONLY_PROCFS_SEQ
-static inline void lprocfs_try_remove_proc_entry(const char *name,
- struct proc_dir_entry *parent)
-{ return; }
-static inline struct proc_dir_entry *lprocfs_srch(struct proc_dir_entry *head,
- const char *name)
-{ return 0; }
-#endif
static inline int lprocfs_obd_setup(struct obd_device *dev)
{ return 0; }
static inline int lprocfs_obd_cleanup(struct obd_device *dev)
{ return 0; }
#endif
struct adaptive_timeout;
-static inline int lprocfs_seq_at_hist_helper(struct seq_file *m,
- struct adaptive_timeout *at)
+static inline int lprocfs_at_hist_helper(struct seq_file *m,
+ struct adaptive_timeout *at)
{ return 0; }
static inline int lprocfs_timeouts_seq_show(struct seq_file *m, void *data)
{ return 0; }
static inline ssize_t
-lprocfs_timeouts_seq_write(struct file *file, const char *buffer,
+lprocfs_timeouts_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{ return 0; }
#ifdef HAVE_SERVER_SUPPORT
static inline ssize_t
-lprocfs_evict_client_seq_write(struct file *file, const char *buffer,
+lprocfs_evict_client_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{ return 0; }
#endif
struct lprocfs_counter *cnt)
{ return; }
static inline
-__u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
- enum lprocfs_fields_flags field)
+u64 lprocfs_stats_collector(struct lprocfs_stats *stats, int idx,
+ enum lprocfs_fields_flags field)
{ return (__u64)0; }
#define LPROC_SEQ_FOPS_RO(name)
/* lproc_ptlrpc.c */
#define target_print_req NULL
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
-#endif /* LPROCFS_SNMP_H */
+#endif /* LPROCFS_STATUS_H */