mirror of https://gitee.com/openkylin/linux.git
394e3902c5
When we stop allocating percpu memory for not-possible CPUs we must not touch the percpu data for not-possible CPUs at all. The correct way of doing this is to test cpu_possible() or to use for_each_cpu(). This patch is a kernel-wide sweep of all instances of NR_CPUS. I found very few instances of this bug, if any. But the patch converts lots of open-coded test to use the preferred helper macros. Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Acked-by: Kyle McMartin <kyle@parisc-linux.org> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: Andi Kleen <ak@muc.de> Cc: Christian Zankel <chris@zankel.net> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: Nathan Scott <nathans@sgi.com> Cc: Jens Axboe <axboe@suse.de> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| Makefile | ||
| align.c | ||
| asm-offsets.c | ||
| entry.S | ||
| head.S | ||
| init_task.c | ||
| io_m32104ut.c | ||
| io_m32700ut.c | ||
| io_mappi.c | ||
| io_mappi2.c | ||
| io_mappi3.c | ||
| io_oaks32r.c | ||
| io_opsput.c | ||
| io_usrv.c | ||
| irq.c | ||
| m32r_ksyms.c | ||
| module.c | ||
| process.c | ||
| ptrace.c | ||
| semaphore.c | ||
| setup.c | ||
| setup_m32104ut.c | ||
| setup_m32700ut.c | ||
| setup_mappi.c | ||
| setup_mappi2.c | ||
| setup_mappi3.c | ||
| setup_oaks32r.c | ||
| setup_opsput.c | ||
| setup_usrv.c | ||
| signal.c | ||
| smp.c | ||
| smpboot.c | ||
| sys_m32r.c | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||