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authorSha Zhengju <handai.szj@taobao.com>2013-09-12 15:13:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 15:38:02 -0700
commit34ff8dc08956098563989d8599840b130be81252 (patch)
tree39c964226586a57b0b1e97d9eb1f34b1dc99519e /include
parent3812c8c8f3953921ef18544110dafc3505c1ac62 (diff)
downloadlinux-linaro-stable-34ff8dc08956098563989d8599840b130be81252.tar.gz
memcg: correct RESOURCE_MAX to ULLONG_MAX
Current RESOURCE_MAX is ULONG_MAX, but the value we used to set resource limit is unsigned long long, so we can set bigger value than that which is strange. The XXX_MAX should be reasonable max value, bigger than that should be overflow. Notice that this change will affect user output of default *.limit_in_bytes: before change: $ cat /cgroup/memory/memory.limit_in_bytes 9223372036854775807 after change: $ cat /cgroup/memory/memory.limit_in_bytes 18446744073709551615 But it doesn't alter the API in term of input - we can still use "echo -1 > *.limit_in_bytes" to reset the numbers to "unlimited". Signed-off-by: Sha Zhengju <handai.szj@taobao.com> Signed-off-by: Qiang Huang <h.huangqiang@huawei.com> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Jeff Liu <jeff.liu@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/res_counter.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h
index 96a509b6be04..586bc7cb1dcf 100644
--- a/include/linux/res_counter.h
+++ b/include/linux/res_counter.h
@@ -54,7 +54,7 @@ struct res_counter {
struct res_counter *parent;
};
-#define RESOURCE_MAX (unsigned long long)LLONG_MAX
+#define RESOURCE_MAX ULLONG_MAX
/**
* Helpers to interact with userspace