author | Jens Axboe <axboe@fb.com> | |
Mon, 24 Nov 2014 22:02:42 +0000 (15:02 -0700) | ||
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
Fri, 16 Jan 2015 14:59:31 +0000 (06:59 -0800) | ||
commit | bdc69c2acca3f51e7f572c1e2a823894b16572e9 | |
tree | 362efa9d0b60cce24f9d22b51e03db0e37e9fc05 | tree | snapshot (tar.xz tar.gz zip) |
parent | 4ce9fbccfb9ee64bec6ac125150e2beac5f0c42f | commit | diff |
blk-mq: use 'nr_cpu_ids' as highest CPU ID count for hwq <-> cpu map
commit a33c1ba2913802b6fb23e974bb2f6a4e73c8b7ce upstream.
We currently use num_possible_cpus(), but that breaks on sparc64 where
the CPU ID space is discontig. Use nr_cpu_ids as the highest CPU ID
instead, so we don't end up reading from invalid memory.
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit a33c1ba2913802b6fb23e974bb2f6a4e73c8b7ce upstream.
We currently use num_possible_cpus(), but that breaks on sparc64 where
the CPU ID space is discontig. Use nr_cpu_ids as the highest CPU ID
instead, so we don't end up reading from invalid memory.
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
block/blk-mq-cpumap.c | diff | blob | history |