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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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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| .. | ||
| 4level-fixup.h | ||
| atomic.h | ||
| bitops.h | ||
| bug.h | ||
| cputime.h | ||
| div64.h | ||
| dma-mapping-broken.h | ||
| dma-mapping.h | ||
| emergency-restart.h | ||
| errno-base.h | ||
| errno.h | ||
| fcntl.h | ||
| futex.h | ||
| ide_iops.h | ||
| ioctl.h | ||
| iomap.h | ||
| ipc.h | ||
| local.h | ||
| mman.h | ||
| mutex-dec.h | ||
| mutex-null.h | ||
| mutex-xchg.h | ||
| page.h | ||
| pci-dma-compat.h | ||
| pci.h | ||
| percpu.h | ||
| pgtable-nopmd.h | ||
| pgtable-nopud.h | ||
| pgtable.h | ||
| resource.h | ||
| rtc.h | ||
| sections.h | ||
| siginfo.h | ||
| signal.h | ||
| statfs.h | ||
| termios.h | ||
| tlb.h | ||
| topology.h | ||
| uaccess.h | ||
| unaligned.h | ||
| vmlinux.lds.h | ||
| xor.h | ||