Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

Pull btrfs update from Chris Mason:
 "This is a large pull, with the bulk of the updates coming from:

   - Hole punching

   - send/receive fixes

   - fsync performance

   - Disk format extension allowing more hardlinks inside a single
     directory (btrfs-progs patch required to enable the compat bit for
     this one)

  I'm cooking more unrelated RAID code, but I wanted to make sure this
  original batch makes it in.  The largest updates here are relatively
  old and have been in testing for some time."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (121 commits)
  btrfs: init ref_index to zero in add_inode_ref
  Btrfs: remove repeated eb->pages check in, disk-io.c/csum_dirty_buffer
  Btrfs: fix page leakage
  Btrfs: do not warn_on when we cannot alloc a page for an extent buffer
  Btrfs: don't bug on enomem in readpage
  Btrfs: cleanup pages properly when ENOMEM in compression
  Btrfs: make filesystem read-only when submitting barrier fails
  Btrfs: detect corrupted filesystem after write I/O errors
  Btrfs: make compress and nodatacow mount options mutually exclusive
  btrfs: fix message printing
  Btrfs: don't bother committing delayed inode updates when fsyncing
  btrfs: move inline function code to header file
  Btrfs: remove unnecessary IS_ERR in bio_readpage_error()
  btrfs: remove unused function btrfs_insert_some_items()
  Btrfs: don't commit instead of overcommitting
  Btrfs: confirmation of value is added before trace_btrfs_get_extent() is called
  Btrfs: be smarter about dropping things from the tree log
  Btrfs: don't lookup csums for prealloc extents
  Btrfs: cache extent state when writing out dirty metadata pages
  Btrfs: do not hold the file extent leaf locked when adding extent item
  ...

1 files changed, 24 insertions, 16 deletions

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index b6501558174..5039686df6a 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1145,12 +1145,12 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
 		ulist_reinit(tmp);
 						/* XXX id not needed */
-		ulist_add(tmp, qg->qgroupid, (unsigned long)qg, GFP_ATOMIC);
+		ulist_add(tmp, qg->qgroupid, (u64)(uintptr_t)qg, GFP_ATOMIC);
 		ULIST_ITER_INIT(&tmp_uiter);
 		while ((tmp_unode = ulist_next(tmp, &tmp_uiter))) {
 			struct btrfs_qgroup_list *glist;
 
-			qg = (struct btrfs_qgroup *)tmp_unode->aux;
+			qg = (struct btrfs_qgroup *)(uintptr_t)tmp_unode->aux;
 			if (qg->refcnt < seq)
 				qg->refcnt = seq + 1;
 			else
@@ -1158,7 +1158,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
 			list_for_each_entry(glist, &qg->groups, next_group) {
 				ulist_add(tmp, glist->group->qgroupid,
-					  (unsigned long)glist->group,
+					  (u64)(uintptr_t)glist->group,
 					  GFP_ATOMIC);
 			}
 		}
@@ -1168,13 +1168,13 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 	 * step 2: walk from the new root
 	 */
 	ulist_reinit(tmp);
-	ulist_add(tmp, qgroup->qgroupid, (unsigned long)qgroup, GFP_ATOMIC);
+	ulist_add(tmp, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
 	ULIST_ITER_INIT(&uiter);
 	while ((unode = ulist_next(tmp, &uiter))) {
 		struct btrfs_qgroup *qg;
 		struct btrfs_qgroup_list *glist;
 
-		qg = (struct btrfs_qgroup *)unode->aux;
+		qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 		if (qg->refcnt < seq) {
 			/* not visited by step 1 */
 			qg->rfer += sgn * node->num_bytes;
@@ -1190,7 +1190,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
 		list_for_each_entry(glist, &qg->groups, next_group) {
 			ulist_add(tmp, glist->group->qgroupid,
-				  (unsigned long)glist->group, GFP_ATOMIC);
+				  (uintptr_t)glist->group, GFP_ATOMIC);
 		}
 	}
 
@@ -1208,12 +1208,12 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 			continue;
 
 		ulist_reinit(tmp);
-		ulist_add(tmp, qg->qgroupid, (unsigned long)qg, GFP_ATOMIC);
+		ulist_add(tmp, qg->qgroupid, (uintptr_t)qg, GFP_ATOMIC);
 		ULIST_ITER_INIT(&tmp_uiter);
 		while ((tmp_unode = ulist_next(tmp, &tmp_uiter))) {
 			struct btrfs_qgroup_list *glist;
 
-			qg = (struct btrfs_qgroup *)tmp_unode->aux;
+			qg = (struct btrfs_qgroup *)(uintptr_t)tmp_unode->aux;
 			if (qg->tag == seq)
 				continue;
 
@@ -1225,7 +1225,7 @@ int btrfs_qgroup_account_ref(struct btrfs_trans_handle *trans,
 
 			list_for_each_entry(glist, &qg->groups, next_group) {
 				ulist_add(tmp, glist->group->qgroupid,
-					  (unsigned long)glist->group,
+					  (uintptr_t)glist->group,
 					  GFP_ATOMIC);
 			}
 		}
@@ -1469,13 +1469,17 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
 	 * be exceeded
 	 */
 	ulist = ulist_alloc(GFP_ATOMIC);
-	ulist_add(ulist, qgroup->qgroupid, (unsigned long)qgroup, GFP_ATOMIC);
+	if (!ulist) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	ulist_add(ulist, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
 	ULIST_ITER_INIT(&uiter);
 	while ((unode = ulist_next(ulist, &uiter))) {
 		struct btrfs_qgroup *qg;
 		struct btrfs_qgroup_list *glist;
 
-		qg = (struct btrfs_qgroup *)unode->aux;
+		qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
 		if ((qg->lim_flags & BTRFS_QGROUP_LIMIT_MAX_RFER) &&
 		    qg->reserved + qg->rfer + num_bytes >
@@ -1489,7 +1493,7 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
 
 		list_for_each_entry(glist, &qg->groups, next_group) {
 			ulist_add(ulist, glist->group->qgroupid,
-				  (unsigned long)glist->group, GFP_ATOMIC);
+				  (uintptr_t)glist->group, GFP_ATOMIC);
 		}
 	}
 	if (ret)
@@ -1502,7 +1506,7 @@ int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes)
 	while ((unode = ulist_next(ulist, &uiter))) {
 		struct btrfs_qgroup *qg;
 
-		qg = (struct btrfs_qgroup *)unode->aux;
+		qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
 		qg->reserved += num_bytes;
 	}
@@ -1541,19 +1545,23 @@ void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes)
 		goto out;
 
 	ulist = ulist_alloc(GFP_ATOMIC);
-	ulist_add(ulist, qgroup->qgroupid, (unsigned long)qgroup, GFP_ATOMIC);
+	if (!ulist) {
+		btrfs_std_error(fs_info, -ENOMEM);
+		goto out;
+	}
+	ulist_add(ulist, qgroup->qgroupid, (uintptr_t)qgroup, GFP_ATOMIC);
 	ULIST_ITER_INIT(&uiter);
 	while ((unode = ulist_next(ulist, &uiter))) {
 		struct btrfs_qgroup *qg;
 		struct btrfs_qgroup_list *glist;
 
-		qg = (struct btrfs_qgroup *)unode->aux;
+		qg = (struct btrfs_qgroup *)(uintptr_t)unode->aux;
 
 		qg->reserved -= num_bytes;
 
 		list_for_each_entry(glist, &qg->groups, next_group) {
 			ulist_add(ulist, glist->group->qgroupid,
-				  (unsigned long)glist->group, GFP_ATOMIC);
+				  (uintptr_t)glist->group, GFP_ATOMIC);
 		}
 	}