Date: Thu, 4 Jul 2019 19:40:01 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r349746 - head/sys/compat/linux Message-ID: <201907041940.x64Je1Uv029298@repo.freebsd.org>
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Author: trasz Date: Thu Jul 4 19:40:01 2019 New Revision: 349746 URL: https://svnweb.freebsd.org/changeset/base/349746 Log: Fix linuxulator prlimit64(2) with pid == 0. This makes 'ulimit -a' return something reasonable, and helps linux binaries which attempt to close all the files, eg apt(8). Reviewed by: emaste MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D20692 Modified: head/sys/compat/linux/linux_misc.c Modified: head/sys/compat/linux/linux_misc.c ============================================================================== --- head/sys/compat/linux/linux_misc.c Thu Jul 4 19:25:30 2019 (r349745) +++ head/sys/compat/linux/linux_misc.c Thu Jul 4 19:40:01 2019 (r349746) @@ -2001,10 +2001,14 @@ linux_prlimit64(struct thread *td, struct linux_prlimi flags |= PGET_CANDEBUG; else flags |= PGET_CANSEE; - error = pget(args->pid, flags, &p); - if (error != 0) - return (error); - + if (args->pid == 0) { + p = td->td_proc; + PHOLD(p); + } else { + error = pget(args->pid, flags, &p); + if (error != 0) + return (error); + } if (args->old != NULL) { PROC_LOCK(p); lim_rlimit_proc(p, which, &rlim);
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