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-rw-r--r--fs/proc/base.c15
-rw-r--r--fs/proc/generic.c39
-rw-r--r--fs/proc/internal.h2
-rw-r--r--fs/proc/root.c2
4 files changed, 31 insertions, 27 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index aeaf0d0f2f51..a17c26859074 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2328,21 +2328,18 @@ out:
void proc_flush_task(struct task_struct *task)
{
- int i, leader;
- struct pid *pid, *tgid;
+ int i;
+ struct pid *pid, *tgid = NULL;
struct upid *upid;
- leader = thread_group_leader(task);
- proc_flush_task_mnt(proc_mnt, task->pid, leader ? task->tgid : 0);
pid = task_pid(task);
- if (pid->level == 0)
- return;
+ if (thread_group_leader(task))
+ tgid = task_tgid(task);
- tgid = task_tgid(task);
- for (i = 1; i <= pid->level; i++) {
+ for (i = 0; i <= pid->level; i++) {
upid = &pid->numbers[i];
proc_flush_task_mnt(upid->ns->proc_mnt, upid->nr,
- leader ? 0 : tgid->numbers[i].nr);
+ tgid ? tgid->numbers[i].nr : 0);
}
upid = &pid->numbers[pid->level];
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 1bdb62435758..a9806bc21ec3 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -561,28 +561,33 @@ static int proc_register(struct proc_dir_entry * dir, struct proc_dir_entry * dp
static void proc_kill_inodes(struct proc_dir_entry *de)
{
struct list_head *p;
- struct super_block *sb = proc_mnt->mnt_sb;
+ struct super_block *sb;
/*
* Actually it's a partial revoke().
*/
- file_list_lock();
- list_for_each(p, &sb->s_files) {
- struct file * filp = list_entry(p, struct file, f_u.fu_list);
- struct dentry * dentry = filp->f_path.dentry;
- struct inode * inode;
- const struct file_operations *fops;
-
- if (dentry->d_op != &proc_dentry_operations)
- continue;
- inode = dentry->d_inode;
- if (PDE(inode) != de)
- continue;
- fops = filp->f_op;
- filp->f_op = NULL;
- fops_put(fops);
+ spin_lock(&sb_lock);
+ list_for_each_entry(sb, &proc_fs_type.fs_supers, s_instances) {
+ file_list_lock();
+ list_for_each(p, &sb->s_files) {
+ struct file *filp = list_entry(p, struct file,
+ f_u.fu_list);
+ struct dentry *dentry = filp->f_path.dentry;
+ struct inode *inode;
+ const struct file_operations *fops;
+
+ if (dentry->d_op != &proc_dentry_operations)
+ continue;
+ inode = dentry->d_inode;
+ if (PDE(inode) != de)
+ continue;
+ fops = filp->f_op;
+ filp->f_op = NULL;
+ fops_put(fops);
+ }
+ file_list_unlock();
}
- file_list_unlock();
+ spin_unlock(&sb_lock);
}
static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 1820eb2ef762..1b2b6c6bb475 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -78,3 +78,5 @@ static inline int proc_fd(struct inode *inode)
{
return PROC_I(inode)->fd;
}
+
+extern struct file_system_type proc_fs_type;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index ec9cb3b6c93b..1f86bb860e04 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -98,7 +98,7 @@ static void proc_kill_sb(struct super_block *sb)
put_pid_ns(ns);
}
-static struct file_system_type proc_fs_type = {
+struct file_system_type proc_fs_type = {
.name = "proc",
.get_sb = proc_get_sb,
.kill_sb = proc_kill_sb,
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