Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/k…

…ernel/git/gfs2/linux-gfs2

Pull GFS2 updates from Bob Peterson:
 "Here is a list of patches we've accumulated for GFS2 for the current
  upstream merge window.  Last window's set was short, but I warned that
  this one would be bigger, and so it is.  We've got 19 patches:

   - A patch from Abhi Das to propagate the GFS2_DIF_SYSTEM bit so that
     newly added journals don't get flagged, deleted, and recreated by
     fsck.gfs2.

   - Two patches from Andreas Gruenbacher to improve GFS2 performance
     where extended attributes are involved.

   - A patch from Andy Price to fix a suspicious rcu dereference error.

   - Two patches from Ben Marzinski that rework how GFS2's NFS cookies
     are managed.  This fixes readdir problems with nfs-over-gfs2.

   - A patch from Ben Marzinski that fixes a race in unmounting GFS2.

   - A set of four patches from me to move the resource group
     reservations inside the gfs2 inode to improve performance and fix a
     bug whereby get_write_access improperly prevented some operations
     like chown.

   - A patch from me to spinlock-protect the setting of system statfs
     file data.  This was causing small discrepancies between df and du.

   - A patch from me to reintroduce a timeout while clearing glocks
     which was accidentally dropped some time ago.

   - A patch from me to wait for iopen glock dequeues in order to
     improve deleting of files that were unlinked from a different
     cluster node.

   - A patch from me to ensure metadata address spaces get truncated
     when an inode is evicted.

   - A patch from me to fix a bug in which a memory leak could occur in
     some error cases when inodes were trying to be created.

   - A patch to consistently use iopen glocks to transition from the
     unlinked state to the deleted state.

   - A patch to fix a glock reference count error when inode creation
     fails.

   - A patch from Junxiao Bi to fix an flock panic.

   - A patch from Markus Elfring that removes an unnecessary if"

* tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: fix flock panic issue
  GFS2: Don't do glock put on when inode creation fails
  GFS2: Always use iopen glock for gl_deletes
  GFS2: Release iopen glock in gfs2_create_inode error cases
  GFS2: Truncate address space mapping when deleting an inode
  GFS2: Wait for iopen glock dequeues
  gfs2: clear journal live bit in	gfs2_log_flush
  gfs2: change gfs2 readdir cookie
  gfs2: keep offset when splitting dir leaf blocks
  GFS2: Reintroduce a timeout in function gfs2_gl_hash_clear
  GFS2: Update master statfs buffer with sd_statfs_spin locked
  GFS2: Reduce size of incore inode
  GFS2: Make rgrp reservations part of the gfs2_inode structure
  GFS2: Extract quota data from reservations structure (revert 5407e24)
  gfs2: Extended attribute readahead optimization
  gfs2: Extended attribute readahead
  GFS2: Use rht_for_each_entry_rcu in glock_hash_walk
  GFS2: Delete an unnecessary check before the function call "iput"
  gfs2: Automatically set GFS2_DIF_SYSTEM flag on system files

fs/gfs2/aops.c

@@ -914,7 +914,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
 failed:
 	gfs2_trans_end(sdp);
 	gfs2_inplace_release(ip);
-	if (ip->i_res->rs_qa_qd_num)
+	if (ip->i_qadata && ip->i_qadata->qa_qd_num)
 		gfs2_quota_unlock(ip);
 	if (inode == sdp->sd_rindex) {
 		gfs2_glock_dq(&m_ip->i_gh);

fs/gfs2/bmap.c

@@ -787,8 +787,8 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
 	if (error)
 		goto out_rlist;
 
-	if (gfs2_rs_active(ip->i_res)) /* needs to be done with the rgrp glock held */
-		gfs2_rs_deltree(ip->i_res);
+	if (gfs2_rs_active(&ip->i_res)) /* needs to be done with the rgrp glock held */
+		gfs2_rs_deltree(&ip->i_res);
 
 	error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE +
 				 RES_INDIRECT + RES_STATFS + RES_QUOTA,
@@ -1291,13 +1291,9 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize)
 	if (ret)
 		return ret;
 
-	ret = get_write_access(inode);
-	if (ret)
-		return ret;
-
 	inode_dio_wait(inode);
 
-	ret = gfs2_rs_alloc(ip);
+	ret = gfs2_rsqa_alloc(ip);
 	if (ret)
 		goto out;
 
@@ -1307,10 +1303,9 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize)
 		goto out;
 	}
 
-	gfs2_rs_deltree(ip->i_res);
 	ret = do_shrink(inode, oldsize, newsize);
 out:
-	put_write_access(inode);
+	gfs2_rsqa_delete(ip, NULL);
 	return ret;
 }