Messages in this thread Patch in this message | | | Date | Wed, 29 May 2013 13:22:23 +0100 | From | "Jan Beulich" <> | Subject | [PATCH] ix86: don't waste fixmap entries |
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The vsyscall related pvclock entries can only ever be used on x86-64, and hence they shouldn't even get allocated for 32-bit kernels (the more that it is there where address space is relatively precious).
Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Marcelo Tosatti <mtosatti@redhat.com>
--- arch/x86/include/asm/fixmap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 3.10-rc3/arch/x86/include/asm/fixmap.h +++ 3.10-rc3-ix86-fixmap-no-pvclock/arch/x86/include/asm/fixmap.h @@ -81,11 +81,11 @@ enum fixed_addresses { + ((VSYSCALL_END-VSYSCALL_START) >> PAGE_SHIFT) - 1, VVAR_PAGE, VSYSCALL_HPET, -#endif #ifdef CONFIG_PARAVIRT_CLOCK PVCLOCK_FIXMAP_BEGIN, PVCLOCK_FIXMAP_END = PVCLOCK_FIXMAP_BEGIN+PVCLOCK_VSYSCALL_NR_PAGES-1, #endif +#endif FIX_DBGP_BASE, FIX_EARLYCON_MEM_BASE, #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
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