On 06/19/2013 02:34 PM, Peter Schiffer wrote:
> Currently, libcgroup code reads /etc/passwd file once for every line in
> the cgrules.conf file, what can have performance impact on the login times if
> system contains thousands of users and cgrules.conf contains thousands of
> lines.
>
> This patch adds CGFLAG_USECACHE flag to the cgroup_change_cgroup_uid_gid()
> function call which enables cache usage, and thus speeds up login times on
> those
> systems.
>
> Signed-off-by: Peter Schiffer <pschi...@redhat.com>
Acked-By: Jan Safranek <jsafr...@redhat.com>
> ---
> src/pam/pam_cgroup.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/src/pam/pam_cgroup.c b/src/pam/pam_cgroup.c
> index c4ce633..1d78b81 100644
> --- a/src/pam/pam_cgroup.c
> +++ b/src/pam/pam_cgroup.c
> @@ -137,7 +137,8 @@ PAM_EXTERN int pam_sm_open_session(pam_handle_t *pamh,
> int flags,
> /* Note: We are using default gid here. Is there a way to determine
> * under what egid service will be provided?
> */
> - ret = cgroup_change_cgroup_uid_gid(pwd->pw_uid, pwd->pw_gid, pid);
> + ret = cgroup_change_cgroup_uid_gid_flags(pwd->pw_uid,
> + pwd->pw_gid, pid, CGFLAG_USECACHE);
> if (ret) {
> if (ctrl & PAM_DEBUG_ARG)
> pam_syslog(pamh, LOG_ERR, "Change of cgroup for process"
>
>
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