Remove the seq_file boilerplate used to construct the memcontrol stats map, and instead use the new map representation for cgroup control files Signed-off-by: Paul Menage --- mm/memcontrol.c | 30 ++++++------------------------ 1 file changed, 6 insertions(+), 24 deletions(-) Index: cgroupmap-2.6.24-mm1/mm/memcontrol.c =================================================================== --- cgroupmap-2.6.24-mm1.orig/mm/memcontrol.c +++ cgroupmap-2.6.24-mm1/mm/memcontrol.c @@ -974,9 +974,9 @@ static const struct mem_cgroup_stat_desc [MEM_CGROUP_STAT_RSS] = { "rss", PAGE_SIZE, }, }; -static int mem_control_stat_show(struct seq_file *m, void *arg) +static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft, + struct cgroup_map_cb *cb) { - struct cgroup *cont = m->private; struct mem_cgroup *mem_cont = mem_cgroup_from_cont(cont); struct mem_cgroup_stat *stat = &mem_cont->stat; int i; @@ -986,8 +986,7 @@ static int mem_control_stat_show(struct val = mem_cgroup_read_stat(stat, i); val *= mem_cgroup_stat_desc[i].unit; - seq_printf(m, "%s %lld\n", mem_cgroup_stat_desc[i].msg, - (long long)val); + cb->fill(cb, mem_cgroup_stat_desc[i].msg, val); } /* showing # of active pages */ { @@ -997,29 +996,12 @@ static int mem_control_stat_show(struct MEM_CGROUP_ZSTAT_INACTIVE); active = mem_cgroup_get_all_zonestat(mem_cont, MEM_CGROUP_ZSTAT_ACTIVE); - seq_printf(m, "active %ld\n", (active) * PAGE_SIZE); - seq_printf(m, "inactive %ld\n", (inactive) * PAGE_SIZE); + cb->fill(cb, "active", (active) * PAGE_SIZE); + cb->fill(cb, "inactive", (inactive) * PAGE_SIZE); } return 0; } -static const struct file_operations mem_control_stat_file_operations = { - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int mem_control_stat_open(struct inode *unused, struct file *file) -{ - /* XXX __d_cont */ - struct cgroup *cont = file->f_dentry->d_parent->d_fsdata; - - file->f_op = &mem_control_stat_file_operations; - return single_open(file, mem_control_stat_show, cont); -} - - - static struct cftype mem_cgroup_files[] = { { .name = "usage_in_bytes", @@ -1044,7 +1026,7 @@ static struct cftype mem_cgroup_files[] }, { .name = "stat", - .open = mem_control_stat_open, + .read_map = mem_control_stat_show, }, }; -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/