trivial: cgroups: documentation typo and spelling corrections

Minor typo and spelling corrections fixed whilst reading
to learn about cgroups capabilities.
Signed-off-by: NChris Samuel <chris@csamuel.org>
Acked-by: NPaul Menage <menage@google.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Documentation/cgroups/cgroups.txt

@@ -56,7 +56,7 @@ hierarchy, and a set of subsystems; each subsystem has system-specific
 state attached to each cgroup in the hierarchy.  Each hierarchy has
 an instance of the cgroup virtual filesystem associated with it.
 
-At any one time there may be multiple active hierachies of task
+At any one time there may be multiple active hierarchies of task
 cgroups. Each hierarchy is a partition of all tasks in the system.
 
 User level code may create and destroy cgroups by name in an
@@ -124,10 +124,10 @@ following lines:
                                / \
                        Prof (15%) students (5%)
 
-Browsers like firefox/lynx go into the WWW network class, while (k)nfsd go
+Browsers like Firefox/Lynx go into the WWW network class, while (k)nfsd go
 into NFS network class.
 
-At the same time firefox/lynx will share an appropriate CPU/Memory class
+At the same time Firefox/Lynx will share an appropriate CPU/Memory class
 depending on who launched it (prof/student).
 
 With the ability to classify tasks differently for different resources
@@ -325,7 +325,7 @@ and then start a subshell 'sh' in that cgroup:
 Creating, modifying, using the cgroups can be done through the cgroup
 virtual filesystem.
 
-To mount a cgroup hierarchy will all available subsystems, type:
+To mount a cgroup hierarchy with all available subsystems, type:
 # mount -t cgroup xxx /dev/cgroup
 
 The "xxx" is not interpreted by the cgroup code, but will appear in
@@ -521,7 +521,7 @@ always handled well.
 void post_clone(struct cgroup_subsys *ss, struct cgroup *cgrp)
 (cgroup_mutex held by caller)
 
-Called at the end of cgroup_clone() to do any paramater
+Called at the end of cgroup_clone() to do any parameter
 initialization which might be required before a task could attach.  For
 example in cpusets, no task may attach before 'cpus' and 'mems' are set
 up.

Documentation/cgroups/cpusets.txt

@@ -131,7 +131,7 @@ Cpusets extends these two mechanisms as follows:
  - The hierarchy of cpusets can be mounted at /dev/cpuset, for
    browsing and manipulation from user space.
  - A cpuset may be marked exclusive, which ensures that no other
-   cpuset (except direct ancestors and descendents) may contain
+   cpuset (except direct ancestors and descendants) may contain
    any overlapping CPUs or Memory Nodes.
  - You can list all the tasks (by pid) attached to any cpuset.
 
@@ -226,7 +226,7 @@ nodes with memory--using the cpuset_track_online_nodes() hook.
 --------------------------------
 
 If a cpuset is cpu or mem exclusive, no other cpuset, other than
-a direct ancestor or descendent, may share any of the same CPUs or
+a direct ancestor or descendant, may share any of the same CPUs or
 Memory Nodes.
 
 A cpuset that is mem_exclusive *or* mem_hardwall is "hardwalled",
@@ -427,7 +427,7 @@ child cpusets have this flag enabled.
 When doing this, you don't usually want to leave any unpinned tasks in
 the top cpuset that might use non-trivial amounts of CPU, as such tasks
 may be artificially constrained to some subset of CPUs, depending on
-the particulars of this flag setting in descendent cpusets.  Even if
+the particulars of this flag setting in descendant cpusets.  Even if
 such a task could use spare CPU cycles in some other CPUs, the kernel
 scheduler might not consider the possibility of load balancing that
 task to that underused CPU.
@@ -531,9 +531,9 @@ be idle.
 
 Of course it takes some searching cost to find movable tasks and/or
 idle CPUs, the scheduler might not search all CPUs in the domain
-everytime.  In fact, in some architectures, the searching ranges on
+every time.  In fact, in some architectures, the searching ranges on
 events are limited in the same socket or node where the CPU locates,
-while the load balance on tick searchs all.
+while the load balance on tick searches all.
 
 For example, assume CPU Z is relatively far from CPU X.  Even if CPU Z
 is idle while CPU X and the siblings are busy, scheduler can't migrate
@@ -601,7 +601,7 @@ its new cpuset, then the task will continue to use whatever subset
 of MPOL_BIND nodes are still allowed in the new cpuset.  If the task
 was using MPOL_BIND and now none of its MPOL_BIND nodes are allowed
 in the new cpuset, then the task will be essentially treated as if it
-was MPOL_BIND bound to the new cpuset (even though its numa placement,
+was MPOL_BIND bound to the new cpuset (even though its NUMA placement,
 as queried by get_mempolicy(), doesn't change).  If a task is moved
 from one cpuset to another, then the kernel will adjust the tasks
 memory placement, as above, the next time that the kernel attempts

Documentation/cgroups/devices.txt

@@ -42,7 +42,7 @@ suffice, but we can decide the best way to adequately restrict
 movement as people get some experience with this.  We may just want
 to require CAP_SYS_ADMIN, which at least is a separate bit from
 CAP_MKNOD.  We may want to just refuse moving to a cgroup which
-isn't a descendent of the current one.  Or we may want to use
+isn't a descendant of the current one.  Or we may want to use
 CAP_MAC_ADMIN, since we really are trying to lock down root.
 
 CAP_SYS_ADMIN is needed to modify the whitelist or move another

Documentation/cgroups/memory.txt

@@ -302,7 +302,7 @@ will be charged as a new owner of it.
 	unevictable		- # of pages cannot be reclaimed.(mlocked etc)
 
 	Below is depend on CONFIG_DEBUG_VM.
-	inactive_ratio		- VM inernal parameter. (see mm/page_alloc.c)
+	inactive_ratio		- VM internal parameter. (see mm/page_alloc.c)
 	recent_rotated_anon	- VM internal parameter. (see mm/vmscan.c)
 	recent_rotated_file	- VM internal parameter. (see mm/vmscan.c)
 	recent_scanned_anon 	- VM internal parameter. (see mm/vmscan.c)