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author | 2012-07-19 11:17:30 -0700 | |
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committer | 2012-07-19 11:17:30 -0700 | |
commit | abaa72d7fd9a20a67b62e6afa0e746e27851dc33 (patch) | |
tree | ebe4134fcc93a6e205e6004b3e652d7a62281651 /kernel/cgroup.c | |
parent | net-tcp: Fast Open client - cookie-less mode (diff) | |
parent | Merge tag 'md-3.5-fixes' of git://neil.brown.name/md (diff) | |
download | linux-abaa72d7fd9a20a67b62e6afa0e746e27851dc33.tar.gz linux-abaa72d7fd9a20a67b62e6afa0e746e27851dc33.tar.bz2 linux-abaa72d7fd9a20a67b62e6afa0e746e27851dc33.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
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 2097684cf194..b303dfc7dce0 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, |