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ntsync: add kinfo reporting

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Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D57038
This commit is contained in:
Konstantin Belousov
2026-05-18 10:13:31 +03:00
parent 0ac9aac81c
commit d0ea3aff90
2 changed files with 68 additions and 3 deletions
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sys/dev/ntsync/ntsync.c
+44 -3
View File
@@ -19,6 +19,7 @@
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/sysent.h>
#include <sys/user.h>
#include <dev/ntsync/ntsyncvar.h>
static struct cdev *ntsync_cdev;
@@ -484,7 +485,19 @@ static int
ntsync_sem_fill_kinfo(struct file *fp, struct kinfo_file *kif,
struct filedesc *fdp)
{
// XXXKIB
struct ntsync_obj *obj;
struct ntsync_obj_sem *sem;
MPASS(fp->f_type == DTYPE_NTSYNC);
obj = fp->f_data;
MPASS(obj->type == NTSYNC_OBJ_SEM);
sem = OBJ_TO_SEM(obj);
kif->kf_type = KF_TYPE_NTSYNC;
kif->kf_un.kf_ntsync.kf_ntsync_type = KF_NTSYNC_TYPE_SEM;
kif->kf_un.kf_ntsync.kf_ntsync_dev = (uintptr_t)obj->owner;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_sem.count = sem->a.count;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_sem.max = sem->a.max;
return (0);
}
@@ -778,7 +791,21 @@ static int
ntsync_mutex_fill_kinfo(struct file *fp, struct kinfo_file *kif,
struct filedesc *fdp)
{
// XXXKIB
struct ntsync_obj *obj;
struct ntsync_obj_mutex *mutex;
MPASS(fp->f_type == DTYPE_NTSYNC);
obj = fp->f_data;
MPASS(obj->type == NTSYNC_OBJ_MUTEX);
mutex = OBJ_TO_MUTEX(obj);
kif->kf_type = KF_TYPE_NTSYNC;
kif->kf_un.kf_ntsync.kf_ntsync_type = KF_NTSYNC_TYPE_MUTEX;
kif->kf_un.kf_ntsync.kf_ntsync_dev = (uintptr_t)obj->owner;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_mutex.owner =
mutex->a.owner;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_mutex.count =
mutex->a.count;
return (0);
}
@@ -1053,7 +1080,21 @@ static int
ntsync_event_fill_kinfo(struct file *fp, struct kinfo_file *kif,
struct filedesc *fdp)
{
// XXXKIB
struct ntsync_obj *obj;
struct ntsync_obj_event *event;
MPASS(fp->f_type == DTYPE_NTSYNC);
obj = fp->f_data;
MPASS(obj->type == NTSYNC_OBJ_EVENT);
event = OBJ_TO_EVENT(obj);
kif->kf_type = KF_TYPE_NTSYNC;
kif->kf_un.kf_ntsync.kf_ntsync_type = KF_NTSYNC_TYPE_EVENT;
kif->kf_un.kf_ntsync.kf_ntsync_dev = (uintptr_t)obj->owner;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_event.signaled =
event->a.signaled;
kif->kf_un.kf_ntsync.kf_ntsync_un.kf_ntsync_event.manual =
event->a.manual;
return (0);
}
sys/sys/user.h
+24
View File
@@ -269,6 +269,7 @@ struct user {
#define KF_TYPE_TIMERFD 14
#define KF_TYPE_INOTIFY 15
#define KF_TYPE_JAILDESC 16
#define KF_TYPE_NTSYNC 17
#define KF_TYPE_UNKNOWN 255
#define KF_VTYPE_VNON 0
@@ -289,6 +290,11 @@ struct user {
#define KF_FD_TYPE_TEXT -5 /* Text vnode */
#define KF_FD_TYPE_CTTY -6 /* Controlling terminal */
#define KF_NTSYNC_TYPE_DEV 1 /* Not reported, reserved */
#define KF_NTSYNC_TYPE_SEM 2
#define KF_NTSYNC_TYPE_MUTEX 3
#define KF_NTSYNC_TYPE_EVENT 4
#define KF_FLAG_READ 0x00000001
#define KF_FLAG_WRITE 0x00000002
#define KF_FLAG_APPEND 0x00000004
@@ -467,6 +473,24 @@ struct kinfo_file {
uint64_t kf_inotify_npending;
uint64_t kf_inotify_nbpending;
} kf_inotify;
struct {
uint32_t kf_ntsync_type;
uint64_t kf_ntsync_dev;
union {
struct {
uint32_t count;
uint32_t max;
} kf_ntsync_sem;
struct{
uint32_t owner;
uint32_t count;
} kf_ntsync_mutex;
struct {
uint32_t signaled;
uint32_t manual;
} kf_ntsync_event;
} kf_ntsync_un;
} kf_ntsync;
} kf_un;
};
uint16_t kf_status; /* Status flags. */