Merge branch 'work.icache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs inode freeing updates from Al Viro:
 "Introduction of separate method for RCU-delayed part of
  ->destroy_inode() (if any).

  Pretty much as posted, except that destroy_inode() stashes
  ->free_inode into the victim (anon-unioned with ->i_fops) before
  scheduling i_callback() and the last two patches (sockfs conversion
  and folding struct socket_wq into struct socket) are excluded - that
  pair should go through netdev once davem reopens his tree"

* 'work.icache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (58 commits)
  orangefs: make use of ->free_inode()
  shmem: make use of ->free_inode()
  hugetlb: make use of ->free_inode()
  overlayfs: make use of ->free_inode()
  jfs: switch to ->free_inode()
  fuse: switch to ->free_inode()
  ext4: make use of ->free_inode()
  ecryptfs: make use of ->free_inode()
  ceph: use ->free_inode()
  btrfs: use ->free_inode()
  afs: switch to use of ->free_inode()
  dax: make use of ->free_inode()
  ntfs: switch to ->free_inode()
  securityfs: switch to ->free_inode()
  apparmor: switch to ->free_inode()
  rpcpipe: switch to ->free_inode()
  bpf: switch to ->free_inode()
  mqueue: switch to ->free_inode()
  ufs: switch to ->free_inode()
  coda: switch to ->free_inode()
  ...

1 files changed, 2 insertions, 3 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index 2275a0ff7c30..f4dce9c8670d 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3631,9 +3631,8 @@ static struct inode *shmem_alloc_inode(struct super_block *sb)
 	return &info->vfs_inode;
 }
 
-static void shmem_destroy_callback(struct rcu_head *head)
+static void shmem_free_in_core_inode(struct inode *inode)
 {
-	struct inode *inode = container_of(head, struct inode, i_rcu);
 	if (S_ISLNK(inode->i_mode))
 		kfree(inode->i_link);
 	kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode));
@@ -3643,7 +3642,6 @@ static void shmem_destroy_inode(struct inode *inode)
 {
 	if (S_ISREG(inode->i_mode))
 		mpol_free_shared_policy(&SHMEM_I(inode)->policy);
-	call_rcu(&inode->i_rcu, shmem_destroy_callback);
 }
 
 static void shmem_init_inode(void *foo)
@@ -3734,6 +3732,7 @@ static const struct inode_operations shmem_special_inode_operations = {
 
 static const struct super_operations shmem_ops = {
 	.alloc_inode	= shmem_alloc_inode,
+	.free_inode	= shmem_free_in_core_inode,
 	.destroy_inode	= shmem_destroy_inode,
 #ifdef CONFIG_TMPFS
 	.statfs		= shmem_statfs,