switch mqueue to ->evict_inode()

... and since the inodes are never hashed, we can use default ->drop_inode()
just fine.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 7 insertions, 9 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index c93fd3faac2d..c60e519e2917 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -158,7 +158,7 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
                             u->mq_bytes + mq_bytes >
                             task_rlimit(p, RLIMIT_MSGQUEUE)) {
                                 spin_unlock(&mq_lock);
-                                /* mqueue_delete_inode() releases info->messages */
+                                /* mqueue_evict_inode() releases info->messages */
                                 goto out_inode;
                         }
                         u->mq_bytes += mq_bytes;
@@ -241,7 +241,7 @@ static void mqueue_destroy_inode(struct inode *inode)
         kmem_cache_free(mqueue_inode_cachep, MQUEUE_I(inode));
 }
 
-static void mqueue_delete_inode(struct inode *inode)
+static void mqueue_evict_inode(struct inode *inode)
 {
         struct mqueue_inode_info *info;
         struct user_struct *user;
@@ -249,10 +249,11 @@ static void mqueue_delete_inode(struct inode *inode)
         int i;
         struct ipc_namespace *ipc_ns;
 
-        if (S_ISDIR(inode->i_mode)) {
-                clear_inode(inode);
+        end_writeback(inode);
+
+        if (S_ISDIR(inode->i_mode))
                 return;
-        }
+
         ipc_ns = get_ns_from_inode(inode);
         info = MQUEUE_I(inode);
         spin_lock(&info->lock);
@@ -261,8 +262,6 @@ static void mqueue_delete_inode(struct inode *inode)
         kfree(info->messages);
         spin_unlock(&info->lock);
 
-        clear_inode(inode);
-
         /* Total amount of bytes accounted for the mqueue */
         mq_bytes = info->attr.mq_maxmsg * (sizeof(struct msg_msg *)
             + info->attr.mq_msgsize);
@@ -1225,9 +1224,8 @@ static const struct file_operations mqueue_file_operations = {
 static const struct super_operations mqueue_super_ops = {
         .alloc_inode = mqueue_alloc_inode,
         .destroy_inode = mqueue_destroy_inode,
+        .evict_inode = mqueue_evict_inode,
         .statfs = simple_statfs,
-        .delete_inode = mqueue_delete_inode,
-        .drop_inode = generic_delete_inode,
 };
 
 static struct file_system_type mqueue_fs_type = {