Default max string length for cgroup file is CGROUP_LOCAL_BUFFER_SIZE == 64
which is not enough for allow quota options for example: echo "0 7:1;1 aaa;2 usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0;" > /sys/fs/cgroup/ve/100/ve.mount_opts -bash: echo: write error: Argument list too long So increase the max limit to 256 for now. https://jira.sw.ru/browse/PSBM-40075 Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com> --- kernel/ve/ve.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/ve/ve.c b/kernel/ve/ve.c index 7cb47fa..0533d79 100644 --- a/kernel/ve/ve.c +++ b/kernel/ve/ve.c @@ -1039,6 +1039,7 @@ static int ve_mount_opts_release(struct inode *inode, struct file *file) * consisting of substrings separated by MNTOPT_DELIM. */ #define MNTOPT_DELIM ';' +#define MNTOPT_MAXLEN 256 /* * Each substring has the form of "<type> <comma-separated-list-of-options>" @@ -1418,6 +1419,7 @@ static struct cftype ve_cftypes[] = { }, { .name = "mount_opts", + .max_write_len = MNTOPT_MAXLEN, .flags = CFTYPE_NOT_ON_ROOT, .open = ve_mount_opts_open, .read = ve_mount_opts_read, -- 1.8.3.1 _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
