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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-14 00:00:36 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-14 00:00:36 +0300 |
commit | 78a45c6f067824cf5d0a9fedea7339ac2e28603c (patch) | |
tree | b4f78c8b6b9059ddace0a18c11629b8d2045f793 /Documentation/cgroups | |
parent | f96fe225677b3efb74346ebd56fafe3997b02afa (diff) | |
parent | 29d293b6007b91a4463f05bc8d0b26e0e65c5816 (diff) | |
download | linux-78a45c6f067824cf5d0a9fedea7339ac2e28603c.tar.xz |
Merge branch 'akpm' (second patch-bomb from Andrew)
Merge second patchbomb from Andrew Morton:
- the rest of MM
- misc fs fixes
- add execveat() syscall
- new ratelimit feature for fault-injection
- decompressor updates
- ipc/ updates
- fallocate feature creep
- fsnotify cleanups
- a few other misc things
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (99 commits)
cgroups: Documentation: fix trivial typos and wrong paragraph numberings
parisc: percpu: update comments referring to __get_cpu_var
percpu: update local_ops.txt to reflect this_cpu operations
percpu: remove __get_cpu_var and __raw_get_cpu_var macros
fsnotify: remove destroy_list from fsnotify_mark
fsnotify: unify inode and mount marks handling
fallocate: create FAN_MODIFY and IN_MODIFY events
mm/cma: make kmemleak ignore CMA regions
slub: fix cpuset check in get_any_partial
slab: fix cpuset check in fallback_alloc
shmdt: use i_size_read() instead of ->i_size
ipc/shm.c: fix overly aggressive shmdt() when calls span multiple segments
ipc/msg: increase MSGMNI, remove scaling
ipc/sem.c: increase SEMMSL, SEMMNI, SEMOPM
ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()
lib/decompress.c: consistency of compress formats for kernel image
decompress_bunzip2: off by one in get_next_block()
usr/Kconfig: make initrd compression algorithm selection not expert
fault-inject: add ratelimit option
ratelimit: add initialization macro
...
Diffstat (limited to 'Documentation/cgroups')
-rw-r--r-- | Documentation/cgroups/cpusets.txt | 6 | ||||
-rw-r--r-- | Documentation/cgroups/memory.txt | 8 |
2 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt index 3c94ff3f9693..f2235a162529 100644 --- a/Documentation/cgroups/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt @@ -445,7 +445,7 @@ across partially overlapping sets of CPUs would risk unstable dynamics that would be beyond our understanding. So if each of two partially overlapping cpusets enables the flag 'cpuset.sched_load_balance', then we form a single sched domain that is a superset of both. We won't move -a task to a CPU outside it cpuset, but the scheduler load balancing +a task to a CPU outside its cpuset, but the scheduler load balancing code might waste some compute cycles considering that possibility. This mismatch is why there is not a simple one-to-one relation @@ -552,8 +552,8 @@ otherwise initial value -1 that indicates the cpuset has no request. 1 : search siblings (hyperthreads in a core). 2 : search cores in a package. 3 : search cpus in a node [= system wide on non-NUMA system] - ( 4 : search nodes in a chunk of node [on NUMA system] ) - ( 5 : search system wide [on NUMA system] ) + 4 : search nodes in a chunk of node [on NUMA system] + 5 : search system wide [on NUMA system] The system default is architecture dependent. The system default can be changed using the relax_domain_level= boot parameter. diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 46b2b5080317..a22df3ad35ff 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -326,7 +326,7 @@ per cgroup, instead of globally. * tcp memory pressure: sockets memory pressure for the tcp protocol. -2.7.3 Common use cases +2.7.2 Common use cases Because the "kmem" counter is fed to the main user counter, kernel memory can never be limited completely independently of user memory. Say "U" is the user @@ -354,19 +354,19 @@ set: 3. User Interface -0. Configuration +3.0. Configuration a. Enable CONFIG_CGROUPS b. Enable CONFIG_MEMCG c. Enable CONFIG_MEMCG_SWAP (to use swap extension) d. Enable CONFIG_MEMCG_KMEM (to use kmem extension) -1. Prepare the cgroups (see cgroups.txt, Why are cgroups needed?) +3.1. Prepare the cgroups (see cgroups.txt, Why are cgroups needed?) # mount -t tmpfs none /sys/fs/cgroup # mkdir /sys/fs/cgroup/memory # mount -t cgroup none /sys/fs/cgroup/memory -o memory -2. Make the new group and move bash into it +3.2. Make the new group and move bash into it # mkdir /sys/fs/cgroup/memory/0 # echo $$ > /sys/fs/cgroup/memory/0/tasks |