Merge tag '9p-for-5.11-rc1' of git://github.com/martinetd/linux

Pull 9p update from Dominique Martinet:

 - fix long-standing limitation on open-unlink-fop pattern

 - add refcount to p9_fid (fixes the above and will allow for more
   cleanups and simplifications in the future)

* tag '9p-for-5.11-rc1' of git://github.com/martinetd/linux:
  9p: Remove unnecessary IS_ERR() check
  9p: Uninitialized variable in v9fs_writeback_fid()
  9p: Fix writeback fid incorrectly being attached to dentry
  9p: apply review requests for fid refcounting
  9p: add refcount to p9_fid struct
  fs/9p: search open fids first
  fs/9p: track open fids
  fs/9p: fix create-unlink-getattr idiom

1 files changed, 7 insertions, 0 deletions

diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index dd5b5bd781a4..e1c308d8d288 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -140,10 +140,16 @@ struct p9_client {
  *
  * TODO: This needs lots of explanation.
  */
+enum fid_source {
+	FID_FROM_OTHER,
+	FID_FROM_INODE,
+	FID_FROM_DENTRY,
+};
 
 struct p9_fid {
 	struct p9_client *clnt;
 	u32 fid;
+	refcount_t count;
 	int mode;
 	struct p9_qid qid;
 	u32 iounit;
@@ -152,6 +158,7 @@ struct p9_fid {
 	void *rdir;
 
 	struct hlist_node dlist;	/* list of all fids attached to a dentry */
+	struct hlist_node ilist;
 };
 
 /**