Merge branch 'akpm' (patches from Andrew)

Merge updates from Andrew Morton:

 - a few hot fixes

 - ocfs2 updates

 - almost all of -mm (slab-generic, slab, slub, kmemleak, kasan,
   cleanups, debug, pagecache, memcg, gup, pagemap, memory-hotplug,
   sparsemem, vmalloc, initialization, z3fold, compaction, mempolicy,
   oom-kill, hugetlb, migration, thp, mmap, madvise, shmem, zswap,
   zsmalloc)

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (132 commits)
  mm/zsmalloc.c: fix a -Wunused-function warning
  zswap: do not map same object twice
  zswap: use movable memory if zpool support allocate movable memory
  zpool: add malloc_support_movable to zpool_driver
  shmem: fix obsolete comment in shmem_getpage_gfp()
  mm/madvise: reduce code duplication in error handling paths
  mm: mmap: increase sockets maximum memory size pgoff for 32bits
  mm/mmap.c: refine find_vma_prev() with rb_last()
  riscv: make mmap allocation top-down by default
  mips: use generic mmap top-down layout and brk randomization
  mips: replace arch specific way to determine 32bit task with generic version
  mips: adjust brk randomization offset to fit generic version
  mips: use STACK_TOP when computing mmap base address
  mips: properly account for stack randomization and stack guard gap
  arm: use generic mmap top-down layout and brk randomization
  arm: use STACK_TOP when computing mmap base address
  arm: properly account for stack randomization and stack guard gap
  arm64, mm: make randomization selected by generic topdown mmap layout
  arm64, mm: move generic mmap layout functions to mm
  arm64: consider stack randomization for mmap base only when necessary
  ...

1 files changed, 11 insertions, 44 deletions

diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index a4b58ba99927..4d0b452012b2 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -853,67 +853,34 @@ static const struct file_operations debug_state_fops = {
 /* files in subroot */
 void dlm_debug_init(struct dlm_ctxt *dlm)
 {
-	struct dlm_debug_ctxt *dc = dlm->dlm_debug_ctxt;
-
 	/* for dumping dlm_ctxt */
-	dc->debug_state_dentry = debugfs_create_file(DLM_DEBUGFS_DLM_STATE,
-						     S_IFREG|S_IRUSR,
-						     dlm->dlm_debugfs_subroot,
-						     dlm, &debug_state_fops);
+	debugfs_create_file(DLM_DEBUGFS_DLM_STATE, S_IFREG|S_IRUSR,
+			    dlm->dlm_debugfs_subroot, dlm, &debug_state_fops);
 
 	/* for dumping lockres */
-	dc->debug_lockres_dentry =
-			debugfs_create_file(DLM_DEBUGFS_LOCKING_STATE,
-					    S_IFREG|S_IRUSR,
-					    dlm->dlm_debugfs_subroot,
-					    dlm, &debug_lockres_fops);
+	debugfs_create_file(DLM_DEBUGFS_LOCKING_STATE, S_IFREG|S_IRUSR,
+			    dlm->dlm_debugfs_subroot, dlm, &debug_lockres_fops);
 
 	/* for dumping mles */
-	dc->debug_mle_dentry = debugfs_create_file(DLM_DEBUGFS_MLE_STATE,
-						   S_IFREG|S_IRUSR,
-						   dlm->dlm_debugfs_subroot,
-						   dlm, &debug_mle_fops);
+	debugfs_create_file(DLM_DEBUGFS_MLE_STATE, S_IFREG|S_IRUSR,
+			    dlm->dlm_debugfs_subroot, dlm, &debug_mle_fops);
 
 	/* for dumping lockres on the purge list */
-	dc->debug_purgelist_dentry =
-			debugfs_create_file(DLM_DEBUGFS_PURGE_LIST,
-					    S_IFREG|S_IRUSR,
-					    dlm->dlm_debugfs_subroot,
-					    dlm, &debug_purgelist_fops);
-}
-
-void dlm_debug_shutdown(struct dlm_ctxt *dlm)
-{
-	struct dlm_debug_ctxt *dc = dlm->dlm_debug_ctxt;
-
-	if (dc) {
-		debugfs_remove(dc->debug_purgelist_dentry);
-		debugfs_remove(dc->debug_mle_dentry);
-		debugfs_remove(dc->debug_lockres_dentry);
-		debugfs_remove(dc->debug_state_dentry);
-		kfree(dc);
-		dc = NULL;
-	}
+	debugfs_create_file(DLM_DEBUGFS_PURGE_LIST, S_IFREG|S_IRUSR,
+			    dlm->dlm_debugfs_subroot, dlm,
+			    &debug_purgelist_fops);
 }
 
 /* subroot - domain dir */
-int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
+void dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
 {
-	dlm->dlm_debug_ctxt = kzalloc(sizeof(struct dlm_debug_ctxt),
-				      GFP_KERNEL);
-	if (!dlm->dlm_debug_ctxt) {
-		mlog_errno(-ENOMEM);
-		return -ENOMEM;
-	}
-
 	dlm->dlm_debugfs_subroot = debugfs_create_dir(dlm->name,
 						      dlm_debugfs_root);
-	return 0;
 }
 
 void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm)
 {
-	debugfs_remove(dlm->dlm_debugfs_subroot);
+	debugfs_remove_recursive(dlm->dlm_debugfs_subroot);
 }
 
 /* debugfs root */