*
* 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
*/
#ifdef CONFIG_PROC_FS
-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;
- }
-
- 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 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);
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 /* !CONFIG_PROC_FS */
#define proc_lustre_root NULL
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)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff