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| author | Tian Tao <tiantao6@hisilicon.com> | 2021-08-06 23:02:49 +1200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-13 10:27:49 +0200 |
| commit | bb9ec13d156e85dfd6a8afd0bb61ccf5736ed257 (patch) | |
| tree | 6ec90b5485d9d196659b0c6a463acb013e97cd1c /kernel/locking/rtmutex_api.c | |
| parent | 291f93ca339f5b5e6e90ad037bb8271f0f618165 (diff) | |
| download | linux-stable-bb9ec13d156e85dfd6a8afd0bb61ccf5736ed257.tar.gz linux-stable-bb9ec13d156e85dfd6a8afd0bb61ccf5736ed257.tar.bz2 linux-stable-bb9ec13d156e85dfd6a8afd0bb61ccf5736ed257.zip | |
topology: use bin_attribute to break the size limitation of cpumap ABI
Reading /sys/devices/system/cpu/cpuX/topology/ returns cpu topology.
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/20210806110251.560-4-song.bao.hua@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/locking/rtmutex_api.c')
0 files changed, 0 insertions, 0 deletions