Date: Sat, 29 Feb 2020 21:55:48 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r358475 - in stable/12/sys: compat/linux kern sys Message-ID: <202002292155.01TLtmLZ067110@repo.freebsd.org>
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Author: kib Date: Sat Feb 29 21:55:48 2020 New Revision: 358475 URL: https://svnweb.freebsd.org/changeset/base/358475 Log: MFC r358251: Add td_pflags2, yet another thread-private flags word. Modified: stable/12/sys/compat/linux/linux_fork.c stable/12/sys/kern/kern_fork.c stable/12/sys/kern/kern_kthread.c stable/12/sys/kern/kern_thr.c stable/12/sys/sys/proc.h Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/compat/linux/linux_fork.c ============================================================================== --- stable/12/sys/compat/linux/linux_fork.c Sat Feb 29 21:50:08 2020 (r358474) +++ stable/12/sys/compat/linux/linux_fork.c Sat Feb 29 21:55:48 2020 (r358475) @@ -309,6 +309,7 @@ linux_clone_thread(struct thread *td, struct linux_clo bzero(&newtd->td_startzero, __rangeof(struct thread, td_startzero, td_endzero)); + newtd->td_pflags2 = 0; bcopy(&td->td_startcopy, &newtd->td_startcopy, __rangeof(struct thread, td_startcopy, td_endcopy)); Modified: stable/12/sys/kern/kern_fork.c ============================================================================== --- stable/12/sys/kern/kern_fork.c Sat Feb 29 21:50:08 2020 (r358474) +++ stable/12/sys/kern/kern_fork.c Sat Feb 29 21:55:48 2020 (r358475) @@ -489,6 +489,7 @@ do_fork(struct thread *td, struct fork_req *fr, struct bzero(&td2->td_startzero, __rangeof(struct thread, td_startzero, td_endzero)); + td2->td_pflags2 = 0; bcopy(&td->td_startcopy, &td2->td_startcopy, __rangeof(struct thread, td_startcopy, td_endcopy)); Modified: stable/12/sys/kern/kern_kthread.c ============================================================================== --- stable/12/sys/kern/kern_kthread.c Sat Feb 29 21:50:08 2020 (r358474) +++ stable/12/sys/kern/kern_kthread.c Sat Feb 29 21:55:48 2020 (r358475) @@ -283,6 +283,7 @@ kthread_add(void (*func)(void *), void *arg, struct pr bzero(&newtd->td_startzero, __rangeof(struct thread, td_startzero, td_endzero)); + newtd->td_pflags2 = 0; bcopy(&oldtd->td_startcopy, &newtd->td_startcopy, __rangeof(struct thread, td_startcopy, td_endcopy)); Modified: stable/12/sys/kern/kern_thr.c ============================================================================== --- stable/12/sys/kern/kern_thr.c Sat Feb 29 21:50:08 2020 (r358474) +++ stable/12/sys/kern/kern_thr.c Sat Feb 29 21:55:48 2020 (r358475) @@ -235,6 +235,7 @@ thread_create(struct thread *td, struct rtprio *rtp, bzero(&newtd->td_startzero, __rangeof(struct thread, td_startzero, td_endzero)); + newtd->td_pflags2 = 0; bcopy(&td->td_startcopy, &newtd->td_startcopy, __rangeof(struct thread, td_startcopy, td_endcopy)); newtd->td_proc = td->td_proc; Modified: stable/12/sys/sys/proc.h ============================================================================== --- stable/12/sys/sys/proc.h Sat Feb 29 21:50:08 2020 (r358474) +++ stable/12/sys/sys/proc.h Sat Feb 29 21:55:48 2020 (r358475) @@ -368,6 +368,7 @@ struct thread { #ifdef __amd64__ struct mdthread td_md; /* (k) Any machine-dependent fields. */ #endif + int td_pflags2; /* (k) Private thread (TDP2_*) flags. */ }; struct thread0_storage { @@ -1162,6 +1163,25 @@ curthread_pflags_restore(int save) { curthread->td_pflags &= save; +} + +static __inline int +curthread_pflags2_set(int flags) +{ + struct thread *td; + int save; + + td = curthread; + save = ~flags | (td->td_pflags2 & flags); + td->td_pflags2 |= flags; + return (save); +} + +static __inline void +curthread_pflags2_restore(int save) +{ + + curthread->td_pflags2 &= save; } static __inline __pure2 struct td_sched *
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