Date: Sat, 16 Apr 2005 13:02:54 GMT From: David Xu <davidxu@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 75319 for review Message-ID: <200504161302.j3GD2svq068777@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=75319 Change 75319 by davidxu@davidxu_tiger on 2005/04/16 13:02:52 Only need to update %gs. Affected files ... .. //depot/projects/davidxu_thread/src/sys/i386/i386/vm_machdep.c#8 edit Differences ... ==== //depot/projects/davidxu_thread/src/sys/i386/i386/vm_machdep.c#8 (text+ko) ==== @@ -471,7 +471,7 @@ void cpu_set_user_tls(struct thread *td, void *tls_base, size_t tls_size, - int tls_seg) + int tls_seg __unused) { struct segment_descriptor sd; uint32_t base; @@ -494,19 +494,11 @@ sd.sd_def32 = 1; sd.sd_gran = 1; mtx_lock_spin(&sched_lock); - if (tls_seg == 0) { - /* set %gs */ - td->td_pcb->pcb_gsd = sd; - if (td == curthread) { - PCPU_GET(fsgs_gdt)[1] = sd; - load_gs(GSEL(GUGS_SEL, SEL_UPL)); - } - } else { - /* set %fs */ - td->td_pcb->pcb_fsd = sd; - if (td == curthread) - PCPU_GET(fsgs_gdt)[0] = sd; - td->td_frame->tf_fs = GSEL(GUFS_SEL, SEL_UPL); + /* current only uses %gs */ + td->td_pcb->pcb_gsd = sd; + if (td == curthread) { + PCPU_GET(fsgs_gdt)[1] = sd; + load_gs(GSEL(GUGS_SEL, SEL_UPL)); } mtx_unlock_spin(&sched_lock); }
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