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FreeBSD: Add support for procfs_list

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The procfs_list interface is required by several kstats. Implement
this functionality for FreeBSD to provide access to these kstats.
                           
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #10890
This commit is contained in:
Matthew Macy
2020-09-23 16:43:51 -07:00
committed by GitHub
parent 3dad29fb4b
commit 7b8363d7f0
11 changed files with 201 additions and 41 deletions
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include/os/freebsd/spl/sys/kstat.h
+18
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@@ -83,6 +83,14 @@ typedef struct kstat_s kstat_t;
typedef int kid_t; /* unique kstat id */
typedef int kstat_update_t(struct kstat_s *, int); /* dynamic update cb */
struct seq_file {
char *sf_buf;
size_t sf_size;
};
void seq_printf(struct seq_file *m, const char *fmt, ...);
typedef struct kstat_module {
char ksm_name[KSTAT_STRLEN+1]; /* module name */
struct list_head ksm_module_list; /* module linkage */
@@ -92,6 +100,7 @@ typedef struct kstat_module {
typedef struct kstat_raw_ops {
int (*headers)(char *buf, size_t size);
int (*seq_headers)(struct seq_file *);
int (*data)(char *buf, size_t size, void *data);
void *(*addr)(kstat_t *ksp, loff_t index);
} kstat_raw_ops_t;
@@ -112,6 +121,7 @@ struct kstat_s {
size_t ks_data_size; /* size of kstat data section */
kstat_update_t *ks_update; /* dynamic updates */
void *ks_private; /* private data */
void *ks_private1; /* private data */
kmutex_t ks_private_lock; /* kstat private data lock */
kmutex_t *ks_lock; /* kstat data lock */
struct list_head ks_list; /* kstat linkage */
@@ -185,6 +195,12 @@ extern void __kstat_set_raw_ops(kstat_t *ksp,
int (*data)(char *buf, size_t size, void *data),
void* (*addr)(kstat_t *ksp, loff_t index));
extern void __kstat_set_seq_raw_ops(kstat_t *ksp,
int (*headers)(struct seq_file *),
int (*data)(char *buf, size_t size, void *data),
void* (*addr)(kstat_t *ksp, loff_t index));
extern kstat_t *__kstat_create(const char *ks_module, int ks_instance,
const char *ks_name, const char *ks_class, uchar_t ks_type,
uint_t ks_ndata, uchar_t ks_flags);
@@ -196,6 +212,8 @@ extern void kstat_waitq_exit(kstat_io_t *);
extern void kstat_runq_enter(kstat_io_t *);
extern void kstat_runq_exit(kstat_io_t *);
#define kstat_set_seq_raw_ops(k, h, d, a) \
__kstat_set_seq_raw_ops(k, h, d, a)
#define kstat_set_raw_ops(k, h, d, a) \
__kstat_set_raw_ops(k, h, d, a)
#define kstat_create(m, i, n, c, t, s, f) \