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| author | Tian Tao <tiantao6@hisilicon.com> | 2021-08-06 14:02:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-13 11:27:49 +0300 |
| commit | 75bd50fa841db5434728d238b8b5659498ccf0ab (patch) | |
| tree | d8e6a805d41ccc283618572f54699dbda8aa6880 /lib | |
| parent | bb9ec13d156e85dfd6a8afd0bb61ccf5736ed257 (diff) | |
| download | linux-75bd50fa841db5434728d238b8b5659498ccf0ab.tar.xz | |
drivers/base/node.c: use bin_attribute to break the size limitation of cpumap ABI
Reading /sys/devices/system/cpu/cpuX/nodeX/ returns cpumap and cpulist.
However, the size of this file is limited to PAGE_SIZE because of the
limitation for sysfs attribute.
This patch moves to use bin_attribute to extend the ABI to be more
than one page so that cpumap bitmask and list won't be potentially
trimmed.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lore.kernel.org/r/20210806110251.560-5-song.bao.hua@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions