AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/powerpc/platforms/pseries
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John Allen afb5519fdb powerpc/pseries: Don't attempt to acquire drc during memory hot add for assigned lmbs 
Check if an LMB is assigned before attempting to call dlpar_acquire_drc
in order to avoid any unnecessary rtas calls. This substantially
reduces the running time of memory hot add on lpars with large amounts
of memory.

[mpe: We need to explicitly set rc to 0 in the success case, otherwise
 the compiler might think we use rc without initialising it.]

Fixes: c21f515c74 ("powerpc/pseries: Make the acquire/release of the drc for memory a seperate step")
Cc: stable@vger.kernel.org # v4.11+
Signed-off-by: John Allen <jallen@linux.vnet.ibm.com>
Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-08-31 20:02:23 +10:00
..
cmm.c powerpc/pseries: Fix typo in parameter description 2017-02-10 15:20:07 +11:00
dlpar.c powerpc: pseries: remove dlpar_attach_node dependency on full path 2017-08-23 22:27:04 +10:00
dtl.c powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there 2017-04-11 07:46:03 +10:00
eeh_pseries.c powerpc/eeh: Remove unnecessary config_addr from eeh_dev 2017-08-31 14:26:09 +10:00
event_sources.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
firmware.c Merge branch 'topic/ppc-kvm' into next 2017-02-14 17:18:29 +11:00
hotplug-cpu.c powerpc: pseries: remove dlpar_attach_node dependency on full path 2017-08-23 22:27:04 +10:00
hotplug-memory.c powerpc/pseries: Don't attempt to acquire drc during memory hot add for assigned lmbs 2017-08-31 20:02:23 +10:00
hvCall_inst.c powerpc/pseries: Move struct hcall_stats to hvCall_inst.c 2017-03-20 19:02:49 +11:00
hvCall.S powerpc/asm: Convert .llong directives to .8byte 2017-08-31 14:26:47 +10:00
hvconsole.c powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
hvcserver.c powerpc/pseries/hvcserver: don't memset pi_buff if it is null 2015-10-09 08:03:03 +11:00
ibmebus.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
io_event_irq.c powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
iommu.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
Kconfig powerpc/perf/hv-24x7: Support v2 of the hypervisor API 2017-07-02 20:40:33 +10:00
kexec.c powerpc/pseries: Remove MPIC from pseries kexec 2016-06-14 13:58:27 +10:00
lpar.c powerpc/pseries: Fix passing of pp0 in updatepp() and updateboltedpp() 2017-07-03 23:12:19 +10:00
lparcfg.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Makefile powerpc: Change places using CONFIG_KEXEC to use CONFIG_KEXEC_CORE instead. 2016-11-30 23:15:11 +11:00
mobility.c powerpc: pseries: remove dlpar_attach_node dependency on full path 2017-08-23 22:27:04 +10:00
msi.c powerpc/pci: Remove OF node back pointer from pci_dn 2017-08-31 14:26:12 +10:00
nvram.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
of_helpers.c powerpc/pseries: Correct string length in pseries_of_derive_parent() 2015-10-28 12:08:18 +09:00
of_helpers.h powerpc/pseries: extract of_helpers module 2015-10-05 21:11:24 +11:00
offline_states.h powerpc/smp: soft-replugged CPUs must go back to start_secondary 2011-04-01 15:37:09 +11:00
pci_dlpar.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci.c powerpc/pseries: use pci_host_bridge.release_fn() to kfree(phb) 2016-08-22 11:09:33 +10:00
power.c powerpc/sparse: Include headers containing prototypes 2016-06-16 22:40:19 +10:00
pseries_energy.c powerpc/pseries: Don't print failure message in energy driver 2017-08-10 22:30:29 +10:00
pseries.h powerpc: pseries: remove dlpar_attach_node dependency on full path 2017-08-23 22:27:04 +10:00
ras.c powerpc/pseries/le: Work around a firmware quirk 2017-08-31 14:26:02 +10:00
reconfig.c Merge branch 'fixes' into next 2017-08-23 22:20:10 +10:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
scanlog.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
setup.c powerpc: Do not call ppc_md.panic in fadump panic notifier 2017-08-31 14:26:01 +10:00
smp.c powerpc/smp: Convert NR_CPUS to nr_cpu_ids 2017-06-28 13:08:16 +10:00
suspend.c powerpc/pseries: Switch pseries drivers to use machine_xxx_initcall() 2014-07-28 14:11:26 +10:00
vio.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00