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| author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2014-02-28 17:35:52 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-03-07 15:25:55 +0100 |
| commit | 6967037baf08860407d275fdd6475d2ee41bd9b7 (patch) | |
| tree | ab24cabaa559374fc43afcdbb1ddf97166aff655 /arch | |
| parent | d72d2bb5a6bc85af77a9f969687c74ea00cdcc99 (diff) | |
| download | lwn-6967037baf08860407d275fdd6475d2ee41bd9b7.tar.gz lwn-6967037baf08860407d275fdd6475d2ee41bd9b7.zip | |
s390/appldata_os: fix cpu array size calculation
The cpu array size calculation uses the NR_CPUS config option, which
was recently increased from 64 to 256. With a value of 256, the cpu
array will no longer fit into one APPLDATA record and loading the
appldata_os module fails with the following error:
could not insert 'appldata_os': Cannot allocate memory
Use num_possible_cpus() instead of NR_CPUS. For z/VM, this will still
result in a value of 64. This is not true for LPAR, but the appldata
feature is not available for LPAR.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/appldata/appldata_os.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c index de8e2b3b0180..69b23b25ac34 100644 --- a/arch/s390/appldata/appldata_os.c +++ b/arch/s390/appldata/appldata_os.c @@ -171,7 +171,7 @@ static int __init appldata_os_init(void) int rc, max_size; max_size = sizeof(struct appldata_os_data) + - (NR_CPUS * sizeof(struct appldata_os_per_cpu)); + (num_possible_cpus() * sizeof(struct appldata_os_per_cpu)); if (max_size > APPLDATA_MAX_REC_SIZE) { pr_err("Maximum OS record size %i exceeds the maximum " "record size %i\n", max_size, APPLDATA_MAX_REC_SIZE); |