When a hierarchy contains the 'ns' subsystem, do not append '/lxc'
to the parent cgroup. Update surrounding comments for consistency.
Signed-off-by: David Ward
---
src/lxc/cgroup.c | 13 +++--
1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/src/lxc/cgroup.c b/src/lxc/cgr
Use bash instead of perl; eliminates final lxc dependency on perl
(beneficial for minimal operating system environments).
Modify the cgroup search to only use hierarchies that contain one
or more subsystems. When searching, if a hierarchy contains the
'ns' subsystem, do not append '/lxc' to the pa
If CAP_SYS_BOOT is not found in the kernel, the existing value for
conf->need_utmp_watch should be left intact (which will be '1' for
containers started with 'lxc-start', or '0' for containers started
with 'lxc-execute').
Signed-off-by: David Ward
---
src/lxc/start.c |3 +--
1 files changed,
lxc-cgroup gets or sets the value of a state object (such as
'cpuset.cpus'), not the value of a subsystem (which would be
just 'cpuset').
Signed-off-by: David Ward
---
doc/lxc-cgroup.sgml.in | 31 +--
src/lxc/cgroup.c |4 ++--
src/lxc/lxc_cgroup.c | 22
Obtain a list of subsystems from /proc/cgroups, and ignore hierarchies
that are not bound to any of them (especially the 'systemd' hierarchy:
http://www.freedesktop.org/wiki/Software/systemd/PaxControlGroups ).
Signed-off-by: David Ward
---
src/lxc/cgroup.c | 50 +++
execvp does not require specifying the full path to the executable
(e.g., "ls" instead of "/bin/ls"), making the operation of 'lxc-attach'
consistent with 'lxc-start' and 'lxc-execute'.
Signed-off-by: David Ward
---
src/lxc/lxc_attach.c |6 +++---
1 files changed, 3 insertions(+), 3 deletion
__NR_setns is defined in the Linux kernel headers in linux/unistd.h.
The full Linux kernel sources are not necessary for compilation.
Signed-off-by: David Ward
---
config/linux.m4 | 76 ---
configure.ac|8 ++---
src/lxc/Makefile.a
Add an '--active' option that lists active containers by searching
cgroups. (Otherwise, the directories in /var/lib/lxc are listed.)
Modify the cgroup search to only use hierarchies that contain one
or more subsystems. When searching, if a hierarchy contains the
'ns' subsystem, do not append '/lxc'
v3: Rebase onto 0.8.0-rc2; add cgroup fixes to handle ns subsystem;
fix terminology in lxc-cgroup
v2: Add changes to scripts (including new '--active' flag for lxc-ls)
The following patches address a number of different issues I discovered
while building or using lxc (these are not feature pat
To attach a new pid to the cgroups for an existing container, we can use
the same method that we did when we started the container: iterate over
all the mounted cgroup hierarchies; find the cgroup that pid 1 is in for
each hierarchy; add 'lxc/' to the end of it; then write the pid to
the 'tasks' fi
Modify the cgroup search to only use hierarchies that contain one
or more subsystems. When searching, if a hierarchy contains the
'ns' subsystem, do not append '/lxc' to the parent cgroup.
Change method of bind mounting /proc//net onto /proc/net, to
avoid error "cannot mount block device /proc//ne
Having a rootfs is not a necessary condition for monitoring utmp, since
/var or /var/run can just be remounted inside the container instead. We
should rely on the other two conditions already in place to decide
whether to monitor the utmp file:
- the container was started with 'lxc-start', which
Avoid nesting and improve readability.
Signed-off-by: David Ward
---
src/lxc/cgroup.c | 70 -
1 files changed, 32 insertions(+), 38 deletions(-)
diff --git a/src/lxc/cgroup.c b/src/lxc/cgroup.c
index f50c74a..8d70951 100644
--- a/src/lxc/cgr
Display help information in a consistent format.
Print error messages and help information to stderr. Prefix error
messages with the name of the script (for easier debugging as part
of larger scripts).
Allow help information to be printed as a non-root user.
Fix file mode for lxc-checkconfig.in.
Support new default location for LXCINITDIR.
Signed-off-by: David Ward
---
configure.ac |1 +
src/lxc/lxc-setcap.in |1 +
src/lxc/lxc-setuid.in |1 +
3 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac
index c2bf4b0..0c8aa69 100644
---
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