diff options
author | Konstantin Belousov <kib@FreeBSD.org> | 2020-07-02 10:42:58 +0000 |
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committer | Konstantin Belousov <kib@FreeBSD.org> | 2020-07-02 10:42:58 +0000 |
commit | f334f212d9e8b692e0c92e264a5ec76d8855f3df (patch) | |
tree | 79d94e48e80f0e3e7e7b703e3bd0529bb2b578de | |
parent | 4bc5ce2c74d772efe353633f59051e227f524bfa (diff) |
Notes
-rw-r--r-- | sys/compat/linuxkpi/common/src/linux_current.c | 79 |
1 files changed, 33 insertions, 46 deletions
diff --git a/sys/compat/linuxkpi/common/src/linux_current.c b/sys/compat/linuxkpi/common/src/linux_current.c index 7233635eade5..611d10df3383 100644 --- a/sys/compat/linuxkpi/common/src/linux_current.c +++ b/sys/compat/linuxkpi/common/src/linux_current.c @@ -155,65 +155,52 @@ linuxkpi_thread_dtor(void *arg __unused, struct thread *td) put_task_struct(ts); } -struct task_struct * -linux_pid_task(pid_t pid) +static struct task_struct * +linux_get_pid_task_int(pid_t pid, const bool do_get) { struct thread *td; struct proc *p; + struct task_struct *ts; - /* try to find corresponding thread */ - td = tdfind(pid, -1); - if (td != NULL) { - struct task_struct *ts = td->td_lkpi_task; - PROC_UNLOCK(td->td_proc); - return (ts); - } - - /* try to find corresponding procedure */ - p = pfind(pid); - if (p != NULL) { - FOREACH_THREAD_IN_PROC(p, td) { - struct task_struct *ts = td->td_lkpi_task; - if (ts != NULL) { - PROC_UNLOCK(p); - return (ts); + if (pid > PID_MAX) { + /* try to find corresponding thread */ + td = tdfind(pid, -1); + if (td != NULL) { + ts = td->td_lkpi_task; + if (do_get && ts != NULL) + get_task_struct(ts); + PROC_UNLOCK(td->td_proc); + return (ts); + } + } else { + /* try to find corresponding procedure */ + p = pfind(pid); + if (p != NULL) { + FOREACH_THREAD_IN_PROC(p, td) { + ts = td->td_lkpi_task; + if (ts != NULL) { + if (do_get) + get_task_struct(ts); + PROC_UNLOCK(p); + return (ts); + } } + PROC_UNLOCK(p); } - PROC_UNLOCK(p); } return (NULL); } struct task_struct * -linux_get_pid_task(pid_t pid) +linux_pid_task(pid_t pid) { - struct thread *td; - struct proc *p; - - /* try to find corresponding thread */ - td = tdfind(pid, -1); - if (td != NULL) { - struct task_struct *ts = td->td_lkpi_task; - if (ts != NULL) - get_task_struct(ts); - PROC_UNLOCK(td->td_proc); - return (ts); - } + return (linux_get_pid_task_int(pid, false)); +} - /* try to find corresponding procedure */ - p = pfind(pid); - if (p != NULL) { - FOREACH_THREAD_IN_PROC(p, td) { - struct task_struct *ts = td->td_lkpi_task; - if (ts != NULL) { - get_task_struct(ts); - PROC_UNLOCK(p); - return (ts); - } - } - PROC_UNLOCK(p); - } - return (NULL); +struct task_struct * +linux_get_pid_task(pid_t pid) +{ + return (linux_get_pid_task_int(pid, true)); } bool |