Skip to main content

Browse the archive

https://github.com/torvalds/linux
05 April 2024, 19:05:47 UTC
Revision 7bbcbd3d1cdcbacd0f9f8dc4c98d550972f1ca30 authored by Thomas Gleixner on 20 December 2017, 17:02:34 UTC, committed by Ingo Molnar on 22 December 2017, 19:13:00 UTC 
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>
1 parent 6cbd217
History
Tip revision: 7bbcbd3d1cdcbacd0f9f8dc4c98d550972f1ca30 authored by Thomas Gleixner on 20 December 2017, 17:02:34 UTC
x86/Kconfig: Limit NR_CPUS on 32-bit to a sane amount
Tip revision: 7bbcbd3
File Mode Size
Documentation
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.3 KB
.mailmap -rw-r--r-- 8.7 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 96.2 KB
Kbuild -rw-r--r-- 2.2 KB
Kconfig -rw-r--r-- 287 bytes
MAINTAINERS -rw-r--r-- 420.4 KB
Makefile -rw-r--r-- 58.4 KB
README -rw-r--r-- 722 bytes

README

back to top