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authorTao Ma <boyu.mt@taobao.com>2012-11-08 21:36:38 +0800
committerTejun Heo <tj@kernel.org>2012-11-08 06:23:02 -0800
commit316eb661f125397d46f16f94e3c81ad3dc4c1233 (patch)
tree6b3298bff5f264a7046e7bdac2a0ffcd04fbadc8 /kernel
parent4b1c7840b7d01b14a1a00fa0e61b761d4391ba67 (diff)
downloadop-kernel-dev-316eb661f125397d46f16f94e3c81ad3dc4c1233.zip
op-kernel-dev-316eb661f125397d46f16f94e3c81ad3dc4c1233.tar.gz
cgroup: set 'start' with the right value in cgroup_path.
'start' is set to buf + buflen and do the '--' immediately. Just set it to 'buf + buflen - 1' directly. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/cgroup.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 3070164..998ab59 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1770,9 +1770,9 @@ int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen)
return 0;
}
- start = buf + buflen;
+ start = buf + buflen - 1;
- *--start = '\0';
+ *start = '\0';
for (;;) {
int len = dentry->d_name.len;
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