diff options
| author |   Dave Hansen <haveblue@us.ibm.com> | 2005-10-29 18:16:54 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-29 21:40:44 -0700 |
| commit | 3947be1969a9ce455ec30f60ef51efb10e4323d1 (patch) | |
| tree | 0b4b3b4c268beb7aa88cb685cce48b6bb5053c47 /mm/Kconfig | |
| parent | [PATCH] memory hotplug locking: zone span seqlock (diff) | |
| download | linux-dev-3947be1969a9ce455ec30f60ef51efb10e4323d1.tar.xz linux-dev-3947be1969a9ce455ec30f60ef51efb10e4323d1.zip | |
[PATCH] memory hotplug: sysfs and add/remove functions
This adds generic memory add/remove and supporting functions for memory
hotplug into a new file as well as a memory hotplug kernel config option.
Individual architecture patches will follow.
For now, disable memory hotplug when swsusp is enabled. There's a lot of
churn there right now. We'll fix it up properly once it calms down.
Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index f35a550ba4b9..1a4473fcb2ca 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -112,6 +112,14 @@ config SPARSEMEM_EXTREME def_bool y depends on SPARSEMEM && !SPARSEMEM_STATIC +# eventually, we can have this option just 'select SPARSEMEM' +config MEMORY_HOTPLUG + bool "Allow for memory hot-add" + depends on SPARSEMEM && HOTPLUG && !SOFTWARE_SUSPEND + +comment "Memory hotplug is currently incompatible with Software Suspend" + depends on SPARSEMEM && HOTPLUG && SOFTWARE_SUSPEND + # Heavily threaded applications may benefit from splitting the mm-wide # page_table_lock, so that faults on different parts of the user address # space can be handled with less contention: split it at this NR_CPUS. |