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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 12:32:42 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 12:32:42 -0700 |
| commit | 467a3ca5cab64a16b5ec46ebb1895c84c280dcfe (patch) | |
| tree | 68096d5b17e884d270420d50e466186c73019830 /kernel/cgroup.c | |
| parent | 40c9f61eae9098212b6906f29f30f08f7a19b5e2 (diff) | |
| parent | 84a1caf1453c3d44050bd22db958af4a7f99315c (diff) | |
Merge branch 'v3.6-rc7' into tty-next
This is to sync up on Linus's branch to get the other tty and core changes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 2097684cf19..b303dfc7dce 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -901,13 +901,10 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode) mutex_unlock(&cgroup_mutex); /* - * We want to drop the active superblock reference from the - * cgroup creation after all the dentry refs are gone - - * kill_sb gets mighty unhappy otherwise. Mark - * dentry->d_fsdata with cgroup_diput() to tell - * cgroup_d_release() to call deactivate_super(). + * Drop the active superblock reference that we took when we + * created the cgroup */ - dentry->d_fsdata = cgroup_diput; + deactivate_super(cgrp->root->sb); /* * if we're getting rid of the cgroup, refcount should ensure @@ -933,13 +930,6 @@ static int cgroup_delete(const struct dentry *d) return 1; } -static void cgroup_d_release(struct dentry *dentry) -{ - /* did cgroup_diput() tell me to deactivate super? */ - if (dentry->d_fsdata == cgroup_diput) - deactivate_super(dentry->d_sb); -} - static void remove_dir(struct dentry *d) { struct dentry *parent = dget(d->d_parent); @@ -1547,7 +1537,6 @@ static int cgroup_get_rootdir(struct super_block *sb) static const struct dentry_operations cgroup_dops = { .d_iput = cgroup_diput, .d_delete = cgroup_delete, - .d_release = cgroup_d_release, }; struct inode *inode = @@ -3894,8 +3883,12 @@ static void css_dput_fn(struct work_struct *work) { struct cgroup_subsys_state *css = container_of(work, struct cgroup_subsys_state, dput_work); + struct dentry *dentry = css->cgroup->dentry; + struct super_block *sb = dentry->d_sb; - dput(css->cgroup->dentry); + atomic_inc(&sb->s_active); + dput(dentry); + deactivate_super(sb); } static void init_cgroup_css(struct cgroup_subsys_state *css, |