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authorThomas Gleixner <tglx@linutronix.de>2017-12-20 20:02:34 +0300
committerIngo Molnar <mingo@kernel.org>2017-12-22 22:13:00 +0300
commit7bbcbd3d1cdcbacd0f9f8dc4c98d550972f1ca30 (patch)
tree6c2316f44bbe075a1a0c764554cd7df41ec562f5 /arch/x86/mm/dump_pagetables.c
parent6cbd2171e89b13377261d15e64384df60ecb530e (diff)
downloadlinux-7bbcbd3d1cdcbacd0f9f8dc4c98d550972f1ca30.tar.xz
x86/Kconfig: Limit NR_CPUS on 32-bit to a sane amount
The recent cpu_entry_area changes fail to compile on 32-bit when BIGSMP=y and NR_CPUS=512, because the fixmap area becomes too big. Limit the number of CPUs with BIGSMP to 64, which is already way to big for 32-bit, but it's at least a working limitation. We performed a quick survey of 32-bit-only machines that might be affected by this change negatively, but found none. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm/dump_pagetables.c')
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