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cgroup: switch to proc_create() 

There is a race between create_proc_entry() and the assignment of file ops.
proc_create() is invented to fix it.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Li Zefan 2008-04-29 01:00:08 -07:00 committed by Linus Torvalds
parent 06a119204d
commit 46ae220bea
1 changed files with 1 additions and 4 deletions
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5
kernel/cgroup.c
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@ -2545,7 +2545,6 @@ int __init cgroup_init(void)
{
int err;
int i;
struct proc_dir_entry *entry;
err = bdi_init(&cgroup_backing_dev_info);
if (err)
@ -2561,9 +2560,7 @@ int __init cgroup_init(void)
if (err < 0)
goto out;
entry = create_proc_entry("cgroups", 0, NULL);
if (entry)
entry->proc_fops = &proc_cgroupstats_operations;
proc_create("cgroups", 0, NULL, &proc_cgroupstats_operations);
out:
if (err)