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| author | Ben Dooks <ben-linux@fluff.org> | 2008-11-03 14:49:01 +0000 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-11-03 14:49:01 +0000 |
| commit | e856359685143a2f65876e7db4e4aa0ef5dce7f0 (patch) | |
| tree | bbcafe7f23975979f7a2bc6fd1404908d5fd7bd1 /init | |
| parent | e3bd9ec5d8bfc90f9e1bd995677829e57a404061 (diff) | |
| parent | 45beca08dd8b6d6a65c5ffd730af2eac7a2c7a03 (diff) | |
| download | linux-3.10-e856359685143a2f65876e7db4e4aa0ef5dce7f0.tar.gz linux-3.10-e856359685143a2f65876e7db4e4aa0ef5dce7f0.tar.bz2 linux-3.10-e856359685143a2f65876e7db4e4aa0ef5dce7f0.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c-moves2
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 16 | ||||
| -rw-r--r-- | init/do_mounts_md.c | 3 |
2 files changed, 11 insertions, 8 deletions
diff --git a/init/Kconfig b/init/Kconfig index 44e9208f9c7..86b00c53fad 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -401,16 +401,20 @@ config CGROUP_MEM_RES_CTLR depends on CGROUPS && RESOURCE_COUNTERS select MM_OWNER help - Provides a memory resource controller that manages both page cache and - RSS memory. + Provides a memory resource controller that manages both anonymous + memory and page cache. (See Documentation/controllers/memory.txt) Note that setting this option increases fixed memory overhead - associated with each page of memory in the system by 4/8 bytes - and also increases cache misses because struct page on many 64bit - systems will not fit into a single cache line anymore. + associated with each page of memory in the system. By this, + 20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory + usage tracking struct at boot. Total amount of this is printed out + at boot. Only enable when you're ok with these trade offs and really - sure you need the memory resource controller. + sure you need the memory resource controller. Even when you enable + this, you can set "cgroup_disable=memory" at your boot option to + disable memory resource controller and you can avoid overheads. + (and lose benefits of memory resource contoller) This config option also selects MM_OWNER config option, which could in turn add some fork/exit overhead. diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c index 4c87ee1fe5d..d6da5cdd3c3 100644 --- a/init/do_mounts_md.c +++ b/init/do_mounts_md.c @@ -1,6 +1,5 @@ - -#include <linux/raid/md.h> #include <linux/delay.h> +#include <linux/raid/md.h> #include "do_mounts.h" |