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Author SHA1 Message Date
Michael Kerrisk 446d164326 cgroups.7: Minor wording fixes 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk c7913617f7 cgroups.7: cgroup.threads should appear in /sys/kernel/cgroup/delegate 
As discussed with Tejun Heo and Roman Gushchin, the
omission of this file from the list is a bug, and
is about to be fixed by a kernel patch from Roman.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk 6125483529 cgroups.7: Add some rationale for the existence of the "domain invalid" cgroup type 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk dc581e07a4 cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk 0736182888 cgroups.7: Point out that 'nsdelegate' can also be applied on a remount 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk 277559a45c cgroups.7: Clarify that cgroup.controllers is read-only 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:47:12 +01:00
Michael Kerrisk 639b6c8c57 cgroups.7: cgroup.threads is also delegated if delegating a threaded subtree 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-11 00:46:56 +01:00
Michael Kerrisk 4178f13224 cgroups.7: cgroup.threads is writable only inside a threaded subtree 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk b2c3e72073 cgroups.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 2e69ff536c cgroups.7: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk d311c798b7 cgroups.7: Add a more complete description of cgroup v1 named hierarchies 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 218eadf4ae cgroups.7: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk a76748a0e1 cgroups.7: Remove accidentally duplicated NOTES and ERRORS sections 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk c56ec51ba6 cgroups.7: Elaborate a little on problems of splitting threads across cgroups in v1 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 7b574df5c6 cgroups.7: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 59af05147e cgroups.7: Document 'release_agent' mount option 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 56769384da cgroups.7: Rework text on threads and cgroups v2 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 980f1827b0 cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk fcf115f54f cgroups.7: wfix 
Reported-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk d1d4f69503 cgroups.7: srcfix: remove FIXME 
Tejun noted that his statement wasn't correct.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk ed3f4f34fc cgroups.7: Document cgroup v2 delegation via the 'nsdelegate' mount option 
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 148e0800eb cgroups.7: Modify cgroup v2 delegation subheading 
We are about to add description of a different kind
of delegation (nsdelegate) with its own subheading.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 27b086e998 cgroups.7: Add a subheading for delegation containment rules 
This is useful in preparation for adding discussion of the
'nsdelegate' mount option.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 6413d78493 cgroups.7: Document /sys/kernel/cgroup/features 
Reviewed-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 668ef76586 cgroups.7: Document /sys/kernel/cgroup/delegate 
Reviewed-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 28f612ea3d cgroups.7: Note Linux 4.11 changes to cgroup v2 delegation containment rules 
See kernel commit 576dd464505fc53d501bb94569db76f220104d28

Reported-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:47 +01:00
Michael Kerrisk 896305ece8 cgroups.7: srcfix: Remove FIXME 
Tejun Heo confirmed that the existing text is correct.

Reported-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:46 +01:00
Michael Kerrisk e5936eb62f cgroups.7: Tweak the description of delegation of cgroup.subtree_control 
Reported-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:46 +01:00
Michael Kerrisk 00c2709250 cgroups.7: Remove bogus "constraint" relating to thread mode 
Existing cgroups under threaded root *must*, by definition,
be either domain or part of threaded subtrees, so this is not
a constraint on the creation of threaded subtrees.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:46 +01:00
Michael Kerrisk c7f63e7434 cgroups.7: Minor tweaks to text on cgroup.stat 
Reported-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:35:43 +01:00
Michael Kerrisk 06dadef809 cgroups.7: srcfix: FIXME (nsdelegate) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:19 +01:00
Michael Kerrisk 75e83bc270 cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:19 +01:00
Michael Kerrisk d0dd7b8844 cgroups.7: srcfix FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 1de5994653 cgroups.7: srcfix: FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk b59229e4f9 cgroups.7: srcfix FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 0735069bf3 cgroups.7: Minor tweak to text on v2 delegation 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk e5bd7e6598 cgroups.7: Minor fix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 5714ccee0a cgroups.7: Add some section (SH) headings 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk c8902e25cc cgroups.7: Document cgroups v2 "thread mode" 
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk e91d4f9ee7 cgroups.7: Mention the existence of "thread mode" in Linux 4.14 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 5845e10bdb cgroups.7: Document the cgroup.max.depth and cgroup.max.descendants files 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 5e071499bb cgroups.7: Document cgroups v2 cgroup.stat file 
Based on the text in Documentation/cgroup-v2.txt.

Reviewed-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk f7286edcde cgroups.7: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2018-01-10 00:32:18 +01:00
Michael Kerrisk 2468f14e4b cgroups.7: Relocate the 'Cgroups v2 "no internal processes" rule' subsection 
Logically, this section should follow the section that
describes cgroup.subtree_control.

No content changes in this patch.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk 4f017a682c cgroups.7: Elaborate on the "no internal processes" rule 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk c9b101d1a2 cgroups.7: Mention ENOENT error that can occur when writing to subtree_control file 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk 4242dfbe4f cgroups.7: Add subsection describing cgroups v2 subtree delegation 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-27 06:32:48 +01:00
Michael Kerrisk ccb1a2621b cgroups.7: Minor rewording 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 14:09:00 +01:00
Michael Kerrisk 8d5f42dc46 cgroups.7: Rewrite the description of cgroup v2 subtree control 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 13:41:39 +01:00
Michael Kerrisk 57cbb0dbb0 cgroups.7: One may need to unmount v1 controllers before they can be used in v2 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2017-12-23 10:58:08 +01:00