Konstantin Belousov 5c7bebf961 The process spin lock currently has the following distinct uses: ... - Threads lifetime cycle, in particular, counting of the threads in the process, and interlocking with process mutex and thread lock. The main reason of this is that turnstile locks are after thread locks, so you e.g. cannot unlock blockable mutex (think process mutex) while owning thread lock. - Virtual and profiling itimers, since the timers activation is done from the clock interrupt context. Replace the p_slock by p_itimmtx and PROC_ITIMLOCK(). - Profiling code (profil(2)), for similar reason. Replace the p_slock by p_profmtx and PROC_PROFLOCK(). - Resource usage accounting. Need for the spinlock there is subtle, my understanding is that spinlock blocks context switching for the current thread, which prevents td_runtime and similar fields from changing (updates are done at the mi_switch()). Replace the p_slock by p_statmtx and PROC_STATLOCK(). The split is done mostly for code clarity, and should not affect scalability. Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week		2014-11-26 14:10:00 +00:00
..
check_error.d
check_internal_locks.d
linux_dtrace.h
linux_emul.c
linux_emul.h
linux_file.c	Remove the no-at variants of the kern_xx() syscall helpers. E.g., we	2014-11-13 18:01:51 +00:00
linux_file.h
linux_fork.c
linux_futex.c
linux_futex.h
linux_getcwd.c
linux_ioctl.c	Remake Linux' SOUND_MIXER_INFO IOCTL as a wrapper around new FreeBSD's one.	2014-09-24 08:18:11 +00:00
linux_ioctl.h
linux_ipc.c
linux_ipc.h
linux_mib.c	Bump minimum linux compat version to support Centos6 ports updates for linux.	2014-09-22 17:26:07 +00:00
linux_mib.h
linux_misc.c	The process spin lock currently has the following distinct uses:	2014-11-26 14:10:00 +00:00
linux_misc.h
linux_signal.c
linux_signal.h
linux_socket.c	Remove the no-at variants of the kern_xx() syscall helpers. E.g., we	2014-11-13 18:01:51 +00:00
linux_socket.h
linux_stats.c	Remove the no-at variants of the kern_xx() syscall helpers. E.g., we	2014-11-13 18:01:51 +00:00
linux_sysctl.c
linux_sysproto.h
linux_time.c
linux_timer.c	Implement most of timer_{create,settime,gettime,getoverrun,delete}	2014-09-18 08:36:45 +00:00
linux_timer.h	Implement most of timer_{create,settime,gettime,getoverrun,delete}	2014-09-18 08:36:45 +00:00
linux_uid16.c	Remove the no-at variants of the kern_xx() syscall helpers. E.g., we	2014-11-13 18:01:51 +00:00
linux_util.c
linux_util.h
linux_videodev2_compat.h
linux_videodev_compat.h
stats_timing.d
trace_futexes.d