[PATCH v6 0/3] powerpc/pseries: Implement indexed-count memory hotplug

Nathan Fontenot nfont at linux.vnet.ibm.com
Wed Oct 19 04:20:07 AEDT 2016


Indexed-count memory management allows addition and removal of contiguous
lmb blocks with a single command. When compared to the series of calls
previously required to manage contiguous blocks, indexed-count decreases
command frequency and reduces risk of buffer overflow.

-Nathan
---

Changes in v2:
--------------
-[PATCH 1/2]:	-remove potential memory leak when parsing command
		-use u32s drc_index and count instead of u32 ic[]
		 in dlpar_memory
-[PATCH 2/2]:	-use u32s drc_index and count instead of u32 ic[]
		 in dlpar_memory

Changes in v3:
--------------
-[PATCH 1/2]:	-add logic to handle invalid drc_index input
		-update indexed-count trigger to follow naming convention
		-update dlpar_memory to follow kernel if-else style
-[PATCH 2/2]:	-add logic to handle invalid drc_index input

Changes in v4:
--------------
-[PATCH 1/2]:	-add logic to handle kstrdup failure
		-add logic to handle invalid command format

Changes in v5:
--------------
-[PATCH 2/2]:   -update for() loop to use start_index

Changes in v6:
-------------
-[PATCH 1/3]:	-Added new patch 1 that corrects reading past the end of
		 the sysfs buffer when parsing sysfs input.
-[PATCH 2/3]:	-Updated sysfs buffer parsing

Nathan Fontenot (1):
      powerpc/pseries: Correct possible read beyond dlpar sysfs buffer

Sahil Mehta (2):
      powerpc/pseries: Implement indexed-count hotplug memory add
      powerpc/pseries: Implement indexed-count hotplug memory remove


 arch/powerpc/include/asm/rtas.h                 |    2 
 arch/powerpc/platforms/pseries/dlpar.c          |  177 +++++++++++++++-----
 arch/powerpc/platforms/pseries/hotplug-memory.c |  200 ++++++++++++++++++++++-
 3 files changed, 323 insertions(+), 56 deletions(-)



More information about the Linuxppc-dev mailing list