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Subject[PATCH 2/2] ResCounter: Use read_uint in memory controller
Update the memory controller to use read_uint for its
limit/usage/failcnt control files, calling the new
res_counter_read_uint() function.

Signed-off-by: Paul Menage <menage@google.com>

---
mm/memcontrol.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)

Index: rescounter-2.6.25-rc2-mm1/mm/memcontrol.c
===================================================================
--- rescounter-2.6.25-rc2-mm1.orig/mm/memcontrol.c
+++ rescounter-2.6.25-rc2-mm1/mm/memcontrol.c
@@ -922,13 +922,10 @@ int mem_cgroup_write_strategy(char *buf,
return 0;
}

-static ssize_t mem_cgroup_read(struct cgroup *cont,
- struct cftype *cft, struct file *file,
- char __user *userbuf, size_t nbytes, loff_t *ppos)
+static u64 mem_cgroup_read(struct cgroup *cont, struct cftype *cft)
{
- return res_counter_read(&mem_cgroup_from_cont(cont)->res,
- cft->private, userbuf, nbytes, ppos,
- NULL);
+ return res_counter_read_uint(&mem_cgroup_from_cont(cont)->res,
+ cft->private);
}

static ssize_t mem_cgroup_write(struct cgroup *cont, struct cftype *cft,
@@ -1024,18 +1021,18 @@ static struct cftype mem_cgroup_files[]
{
.name = "usage_in_bytes",
.private = RES_USAGE,
- .read = mem_cgroup_read,
+ .read_uint = mem_cgroup_read,
},
{
.name = "limit_in_bytes",
.private = RES_LIMIT,
.write = mem_cgroup_write,
- .read = mem_cgroup_read,
+ .read_uint = mem_cgroup_read,
},
{
.name = "failcnt",
.private = RES_FAILCNT,
- .read = mem_cgroup_read,
+ .read_uint = mem_cgroup_read,
},
{
.name = "force_empty",
--


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