Messages in this thread Patch in this message | | | Date | Fri, 31 May 2013 05:47:38 -0700 | From | tip-bot for Jan Beulich <> | Subject | [tip:x86/mm] ix86: Don't waste fixmap entries |
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Commit-ID: cbdce7b251de89deef79ec9e37b6cfa7d5595894 Gitweb: http://git.kernel.org/tip/cbdce7b251de89deef79ec9e37b6cfa7d5595894 Author: Jan Beulich <JBeulich@suse.com> AuthorDate: Wed, 29 May 2013 13:22:23 +0100 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Fri, 31 May 2013 13:08:18 +0200
ix86: Don't waste fixmap entries
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> Link: http://lkml.kernel.org/r/51A60F1F02000078000D997C@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/x86/include/asm/fixmap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h index 0dc7d9e..e846225 100644 --- a/arch/x86/include/asm/fixmap.h +++ b/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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