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selftests/powerpc: Use req_max_processed_len from sysfs NX capabilities
authorHaren Myneni <haren@linux.ibm.com>
Wed, 23 Jun 2021 05:17:46 +0000 (22:17 -0700)
committerMichael Ellerman <mpe@ellerman.id.au>
Fri, 25 Jun 2021 04:47:19 +0000 (14:47 +1000)
commitc6c27e3d84648e6188fba314ae21a005e60bdcd4
treedc9bd9f22b06ce37af87dea7321d7b4e1dbd0a70tree | snapshot
parent20ccb004bad659c186f9091015a956da220d615dcommit | diff
selftests/powerpc: Use req_max_processed_len from sysfs NX capabilities

On PowerVM, the hypervisor defines the maximum buffer length for
each NX request and the kernel exported this value via sysfs.

This patch reads this value if the sysfs entry is available and
is used to limit the request length.

Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ed908341b1eb7ca0183c028a4ed4a0cf48bfe0f6.camel@linux.ibm.com
tools/testing/selftests/powerpc/nx-gzip/Makefile diff | blob | history
tools/testing/selftests/powerpc/nx-gzip/gzfht_test.c diff | blob | history
Domain: System / Kernel;