Merge tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "We have a set of file locking improvements from Zheng, rbd rw/ro state
  handling code cleanup from myself and some assorted CephFS fixes from
  Jeff.

  rbd now defaults to single-major=Y, lifting the limit of ~240 rbd
  images per host for everyone"

* tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-client:
  rbd: default to single-major device number scheme
  libceph: don't WARN() if user tries to add invalid key
  rbd: set discard_alignment to zero
  ceph: silence sparse endianness warning in encode_caps_cb
  ceph: remove the bump of i_version
  ceph: present consistent fsid, regardless of arch endianness
  ceph: clean up spinlocking and list handling around cleanup_cap_releases()
  rbd: get rid of rbd_mapping::read_only
  rbd: fix and simplify rbd_ioctl_set_ro()
  ceph: remove unused and redundant variable dropping
  ceph: mark expected switch fall-throughs
  ceph: -EINVAL on decoding failure in ceph_mdsc_handle_fsmap()
  ceph: disable cached readdir after dropping positive dentry
  ceph: fix bool initialization/comparison
  ceph: handle 'session get evicted while there are file locks'
  ceph: optimize flock encoding during reconnect
  ceph: make lock_to_ceph_filelock() static
  ceph: keep auth cap when inode has flocks or posix locks

1 files changed, 7 insertions, 2 deletions

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index f2550a076edc..ab81652198c4 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -493,6 +493,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
 	ci->i_wb_ref = 0;
 	ci->i_wrbuffer_ref = 0;
 	ci->i_wrbuffer_ref_head = 0;
+	atomic_set(&ci->i_filelock_ref, 0);
 	ci->i_shared_gen = 0;
 	ci->i_rdcache_gen = 0;
 	ci->i_rdcache_revoking = 0;
@@ -786,7 +787,6 @@ static int fill_inode(struct inode *inode, struct page *locked_page,
 
 	/* update inode */
 	ci->i_version = le64_to_cpu(info->version);
-	inode->i_version++;
 	inode->i_rdev = le32_to_cpu(info->rdev);
 	inode->i_blkbits = fls(le32_to_cpu(info->layout.fl_stripe_unit)) - 1;
 
@@ -1185,6 +1185,7 @@ retry_lookup:
 				    ceph_snap(d_inode(dn)) != tvino.snap)) {
 				dout(" dn %p points to wrong inode %p\n",
 				     dn, d_inode(dn));
+				ceph_dir_clear_ordered(dir);
 				d_delete(dn);
 				dput(dn);
 				goto retry_lookup;
@@ -1322,6 +1323,7 @@ retry_lookup:
 			dout(" %p links to %p %llx.%llx, not %llx.%llx\n",
 			     dn, d_inode(dn), ceph_vinop(d_inode(dn)),
 			     ceph_vinop(in));
+			ceph_dir_clear_ordered(dir);
 			d_invalidate(dn);
 			have_lease = false;
 		}
@@ -1573,6 +1575,7 @@ retry_lookup:
 			    ceph_snap(d_inode(dn)) != tvino.snap)) {
 			dout(" dn %p points to wrong inode %p\n",
 			     dn, d_inode(dn));
+			__ceph_dir_clear_ordered(ci);
 			d_delete(dn);
 			dput(dn);
 			goto retry_lookup;
@@ -1597,7 +1600,9 @@ retry_lookup:
 				 &req->r_caps_reservation);
 		if (ret < 0) {
 			pr_err("fill_inode badness on %p\n", in);
-			if (d_really_is_negative(dn))
+			if (d_really_is_positive(dn))
+				__ceph_dir_clear_ordered(ci);
+			else
 				iput(in);
 			d_drop(dn);
 			err = ret;