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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-10 18:19:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-10 18:19:42 -0700
commit33e247c7e58d335d70ecb84fd869091e2e4b8dcb (patch)
treee8561e1993dff03f8e56d10a5795fe9d379a3390 /mm/Kconfig
parentd71fc239b6915a8b750e9a447311029ff45b6580 (diff)
parent452e06af1f0149b01201f94264d452cd7a95db7a (diff)
downloadlinux-33e247c7e58d335d70ecb84fd869091e2e4b8dcb.tar.bz2
Merge branch 'akpm' (patches from Andrew)
Merge third patch-bomb from Andrew Morton: - even more of the rest of MM - lib/ updates - checkpatch updates - small changes to a few scruffy filesystems - kmod fixes/cleanups - kexec updates - a dma-mapping cleanup series from hch * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (81 commits) dma-mapping: consolidate dma_set_mask dma-mapping: consolidate dma_supported dma-mapping: cosolidate dma_mapping_error dma-mapping: consolidate dma_{alloc,free}_noncoherent dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent} mm: use vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd() mm: make sure all file VMAs have ->vm_ops set mm, mpx: add "vm_flags_t vm_flags" arg to do_mmap_pgoff() mm: mark most vm_operations_struct const namei: fix warning while make xmldocs caused by namei.c ipc: convert invalid scenarios to use WARN_ON zlib_deflate/deftree: remove bi_reverse() lib/decompress_unlzma: Do a NULL check for pointer lib/decompressors: use real out buf size for gunzip with kernel fs/affs: make root lookup from blkdev logical size sysctl: fix int -> unsigned long assignments in INT_MIN case kexec: export KERNEL_IMAGE_SIZE to vmcoreinfo kexec: align crash_notes allocation to make it be inside one physical page kexec: remove unnecessary test in kimage_alloc_crash_control_pages() kexec: split kexec_load syscall from kexec core code ...
Diffstat (limited to 'mm/Kconfig')
-rw-r--r--mm/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index 3a4070f5ab79..6413d027c0b2 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -649,6 +649,18 @@ config DEFERRED_STRUCT_PAGE_INIT
processes running early in the lifetime of the systemm until kswapd
finishes the initialisation.
+config IDLE_PAGE_TRACKING
+ bool "Enable idle page tracking"
+ depends on SYSFS && MMU
+ select PAGE_EXTENSION if !64BIT
+ help
+ This feature allows to estimate the amount of user pages that have
+ not been touched during a given period of time. This information can
+ be useful to tune memory cgroup limits and/or for job placement
+ within a compute cluster.
+
+ See Documentation/vm/idle_page_tracking.txt for more details.
+
config ZONE_DEVICE
bool "Device memory (pmem, etc...) hotplug support" if EXPERT
default !ZONE_DMA