Date: Tue, 8 Mar 2011 16:27:36 -0500 From: John Baldwin <jhb@freebsd.org> To: Dmitry Chagin <dchagin@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r219405 - in head/sys: amd64/amd64 amd64/linux32 arm/arm compat/ia32 compat/linux compat/svr4 i386/i386 i386/ibcs2 i386/linux ia64/ia64 kern mips/mips powerpc/powerpc sparc64/sparc64 sys Message-ID: <201103081627.37026.jhb@freebsd.org> In-Reply-To: <201103081901.p28J1jjh083821@svn.freebsd.org> References: <201103081901.p28J1jjh083821@svn.freebsd.org>
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On Tuesday, March 08, 2011 2:01:45 pm Dmitry Chagin wrote: > Author: dchagin > Date: Tue Mar 8 19:01:45 2011 > New Revision: 219405 > URL: http://svn.freebsd.org/changeset/base/219405 > > Log: > Extend struct sysvec with new method sv_schedtail, which is used for an > explicit process at fork trampoline path instead of eventhadler(schedtail) > invocation for each child process. > > Remove eventhandler(schedtail) code and change linux ABI to use newly added > sysvec method. > > While here replace explicit comparing of module sysentvec structure with the > newly created process sysentvec to detect the linux ABI. > > Discussed with: kib > > MFC after: 2 Week > > Modified: head/sys/compat/linux/linux_emul.c > ============================================================================== > --- head/sys/compat/linux/linux_emul.c Tue Mar 8 18:39:41 2011 (r219404) > +++ head/sys/compat/linux/linux_emul.c Tue Mar 8 19:01:45 2011 (r219405) > @@ -300,13 +300,16 @@ linux_proc_exec(void *arg __unused, stru > } > > void > -linux_schedtail(void *arg __unused, struct proc *p) > +linux_schedtail(struct thread *td) > { > struct linux_emuldata *em; > + struct proc *p; > int error = 0; > int *child_set_tid; > > - if (__predict_true(p->p_sysent != &elf_linux_sysvec)) > + p = td->td_proc; > + > + if (SV_PROC_ABI(p) != SV_ABI_LINUX) > return; Isn't this always false now? -- John Baldwin
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