Messages in this thread Patch in this message | | | Date | Fri, 23 Apr 2004 17:10:35 +0200 | From | Geert Uytterhoeven <> | Subject | [PATCH 152] M68k TLB fixes |
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M68k TLB fixes from Roman Zippel: - Check current->active_mm for currently active mm - Set correct context to flush the right ATC entry This is especially important for kswapd to correctly flush unmapped entries (it caused random segfaults during large compiles)
--- linux-2.4.25/include/asm-m68k/motorola_pgalloc.h 2003-12-23 11:31:10.000000000 +0100 +++ linux-m68k-2.4.25/include/asm-m68k/motorola_pgalloc.h 2004-04-06 10:53:50.000000000 +0200 @@ -231,20 +231,24 @@ static inline void flush_tlb_mm(struct mm_struct *mm) { - if (mm == current->mm) + if (mm == current->active_mm) __flush_tlb(); } static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) { - if (vma->vm_mm == current->mm) + if (vma->vm_mm == current->active_mm) { + mm_segment_t old_fs = get_fs(); + set_fs(USER_DS); __flush_tlb_one(addr); + set_fs(old_fs); + } } static inline void flush_tlb_range(struct mm_struct *mm, unsigned long start, unsigned long end) { - if (mm == current->mm) + if (mm == current->active_mm) __flush_tlb(); } Gr{oetje,eeting}s, Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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