---

yaml
---
r: 311667
b: refs/heads/master
c: fb31fbe
h: refs/heads/master
i:
  311665: b3ec36f
  311663: 1d6c950
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5eecb9cc9029aef3c308fc94149c4a3065d40d9a
+refs/heads/master: fb31fbeb647ed1910290712c13f11f1db09e5506

trunk/Documentation/devicetree/bindings/input/fsl-mma8450.txt

@@ -2,7 +2,6 @@
 
 Required properties:
 - compatible : "fsl,mma8450".
-- reg: the I2C address of MMA8450
 
 Example:
 

trunk/Documentation/devicetree/bindings/mfd/mc13xxx.txt

@@ -46,8 +46,8 @@ Examples:
 
 ecspi@70010000 { /* ECSPI1 */
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
-		   <&gpio4 25 0>; /* GPIO4_25 */
+	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+		   <&gpio3 25 0>; /* GPIO4_25 */
 	status = "okay";
 
 	pmic: mc13892@0 {

trunk/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

@@ -29,6 +29,6 @@ esdhc@70008000 {
 	compatible = "fsl,imx51-esdhc";
 	reg = <0x70008000 0x4000>;
 	interrupts = <2>;
-	cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
-	wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
+	cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
+	wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
 };

trunk/Documentation/devicetree/bindings/net/fsl-fec.txt

@@ -19,6 +19,6 @@ ethernet@83fec000 {
 	reg = <0x83fec000 0x4000>;
 	interrupts = <87>;
 	phy-mode = "mii";
-	phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
+	phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
 	local-mac-address = [00 04 9F 01 1B B9];
 };

trunk/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt

@@ -17,6 +17,6 @@ ecspi@70010000 {
 	reg = <0x70010000 0x4000>;
 	interrupts = <36>;
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
-		   <&gpio3 25 0>; /* GPIO3_25 */
+	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+		   <&gpio3 25 0>; /* GPIO4_25 */
 };

trunk/Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -3,7 +3,6 @@ Device tree binding vendor prefix registry.  Keep list in alphabetical order.
 This isn't an exhaustive list, but you should add new prefixes to it before
 using them to avoid name-space collisions.
 
-ad	Avionic Design GmbH
 adi	Analog Devices, Inc.
 amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 apm	Applied Micro Circuits Corporation (APM)

trunk/drivers/leds/ledtrig-heartbeat.c

@@ -21,6 +21,8 @@
 #include <linux/reboot.h>
 #include "leds.h"
 
+static int panic_heartbeats;
+
 struct heartbeat_trig_data {
 	unsigned int phase;
 	unsigned int period;
@@ -34,6 +36,11 @@ static void led_heartbeat_function(unsigned long data)
 	unsigned long brightness = LED_OFF;
 	unsigned long delay = 0;
 
+	if (unlikely(panic_heartbeats)) {
+		led_set_brightness(led_cdev, LED_OFF);
+		return;
+	}
+
 	/* acts like an actual heart beat -- ie thump-thump-pause... */
 	switch (heartbeat_data->phase) {
 	case 0:
@@ -111,12 +118,19 @@ static int heartbeat_reboot_notifier(struct notifier_block *nb,
 	return NOTIFY_DONE;
 }
 
+static int heartbeat_panic_notifier(struct notifier_block *nb,
+				     unsigned long code, void *unused)
+{
+	panic_heartbeats = 1;
+	return NOTIFY_DONE;
+}
+
 static struct notifier_block heartbeat_reboot_nb = {
 	.notifier_call = heartbeat_reboot_notifier,
 };
 
 static struct notifier_block heartbeat_panic_nb = {
-	.notifier_call = heartbeat_reboot_notifier,
+	.notifier_call = heartbeat_panic_notifier,
 };
 
 static int __init heartbeat_trig_init(void)

trunk/drivers/of/base.c

@@ -511,22 +511,6 @@ struct device_node *of_find_node_with_property(struct device_node *from,
 }
 EXPORT_SYMBOL(of_find_node_with_property);
 
-static const struct of_device_id *of_match_compat(const struct of_device_id *matches,
-						  const char *compat)
-{
-	while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
-		const char *cp = matches->compatible;
-		int len = strlen(cp);
-
-		if (len > 0 && of_compat_cmp(compat, cp, len) == 0)
-			return matches;
-
-		matches++;
-	}
-
-	return NULL;
-}
-
 /**
  * of_match_node - Tell if an device_node has a matching of_match structure
  *	@matches:	array of of device match structures to search in
@@ -537,18 +521,9 @@ static const struct of_device_id *of_match_compat(const struct of_device_id *mat
 const struct of_device_id *of_match_node(const struct of_device_id *matches,
 					 const struct device_node *node)
 {
-	struct property *prop;
-	const char *cp;
-
 	if (!matches)
 		return NULL;
 
-	of_property_for_each_string(node, "compatible", prop, cp) {
-		const struct of_device_id *match = of_match_compat(matches, cp);
-		if (match)
-			return match;
-	}
-
 	while (matches->name[0] || matches->type[0] || matches->compatible[0]) {
 		int match = 1;
 		if (matches->name[0])
@@ -557,7 +532,10 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches,
 		if (matches->type[0])
 			match &= node->type
 				&& !strcmp(matches->type, node->type);
-		if (match && !matches->compatible[0])
+		if (matches->compatible[0])
+			match &= of_device_is_compatible(node,
+						matches->compatible);
+		if (match)
 			return matches;
 		matches++;
 	}

trunk/drivers/of/platform.c

@@ -462,5 +462,4 @@ int of_platform_populate(struct device_node *root,
 	of_node_put(root);
 	return rc;
 }
-EXPORT_SYMBOL_GPL(of_platform_populate);
 #endif /* CONFIG_OF_ADDRESS */

trunk/fs/btrfs/backref.c

@@ -301,14 +301,10 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
 		goto out;
 
 	eb = path->nodes[level];
-	while (!eb) {
-		if (!level) {
-			WARN_ON(1);
-			ret = 1;
-			goto out;
-		}
-		level--;
-		eb = path->nodes[level];
+	if (!eb) {
+		WARN_ON(1);
+		ret = 1;
+		goto out;
 	}
 
 	ret = add_all_parents(root, path, parents, level, &ref->key_for_search,
@@ -839,7 +835,6 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans,
 			}
 			ret = __add_delayed_refs(head, delayed_ref_seq,
 						 &prefs_delayed);
-			mutex_unlock(&head->mutex);
 			if (ret) {
 				spin_unlock(&delayed_refs->lock);
 				goto out;
@@ -933,6 +928,8 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans,
 	}
 
 out:
+	if (head)
+		mutex_unlock(&head->mutex);
 	btrfs_free_path(path);
 	while (!list_empty(&prefs)) {
 		ref = list_first_entry(&prefs, struct __prelim_ref, list);

trunk/fs/btrfs/ctree.c

@@ -1024,18 +1024,11 @@ __tree_mod_log_oldest_root(struct btrfs_fs_info *fs_info,
 		if (!looped && !tm)
 			return 0;
 		/*
-		 * if there are no tree operation for the oldest root, we simply
-		 * return it. this should only happen if that (old) root is at
-		 * level 0.
+		 * we must have key remove operations in the log before the
+		 * replace operation.
 		 */
-		if (!tm)
-			break;
+		BUG_ON(!tm);
 
-		/*
-		 * if there's an operation that's not a root replacement, we
-		 * found the oldest version of our root. normally, we'll find a
-		 * MOD_LOG_KEY_REMOVE_WHILE_FREEING operation here.
-		 */
 		if (tm->op != MOD_LOG_ROOT_REPLACE)
 			break;
 
@@ -1094,7 +1087,11 @@ __tree_mod_log_rewind(struct extent_buffer *eb, u64 time_seq,
 						      tm->generation);
 			break;
 		case MOD_LOG_KEY_ADD:
-			/* if a move operation is needed it's in the log */
+			if (tm->slot != n - 1) {
+				o_dst = btrfs_node_key_ptr_offset(tm->slot);
+				o_src = btrfs_node_key_ptr_offset(tm->slot + 1);
+				memmove_extent_buffer(eb, o_dst, o_src, p_size);
+			}
 			n--;
 			break;
 		case MOD_LOG_MOVE_KEYS:
@@ -1195,8 +1192,16 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 	}
 
 	tm = tree_mod_log_search(root->fs_info, logical, time_seq);
+	/*
+	 * there was an item in the log when __tree_mod_log_oldest_root
+	 * returned. this one must not go away, because the time_seq passed to
+	 * us must be blocking its removal.
+	 */
+	BUG_ON(!tm);
+
 	if (old_root)
-		eb = alloc_dummy_extent_buffer(logical, root->nodesize);
+		eb = alloc_dummy_extent_buffer(tm->index << PAGE_CACHE_SHIFT,
+					       root->nodesize);
 	else
 		eb = btrfs_clone_extent_buffer(root->node);
 	btrfs_tree_read_unlock(root->node);
@@ -1211,10 +1216,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 		btrfs_set_header_level(eb, old_root->level);
 		btrfs_set_header_generation(eb, old_generation);
 	}
-	if (tm)
-		__tree_mod_log_rewind(eb, time_seq, tm);
-	else
-		WARN_ON(btrfs_header_level(eb) != 0);
+	__tree_mod_log_rewind(eb, time_seq, tm);
 	extent_buffer_get(eb);
 
 	return eb;
@@ -2993,7 +2995,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
 static void insert_ptr(struct btrfs_trans_handle *trans,
 		       struct btrfs_root *root, struct btrfs_path *path,
 		       struct btrfs_disk_key *key, u64 bytenr,
-		       int slot, int level)
+		       int slot, int level, int tree_mod_log)
 {
 	struct extent_buffer *lower;
 	int nritems;
@@ -3006,15 +3008,15 @@ static void insert_ptr(struct btrfs_trans_handle *trans,
 	BUG_ON(slot > nritems);
 	BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(root));
 	if (slot != nritems) {
-		if (level)
+		if (tree_mod_log && level)
 			tree_mod_log_eb_move(root->fs_info, lower, slot + 1,
 					     slot, nritems - slot);
 		memmove_extent_buffer(lower,
 			      btrfs_node_key_ptr_offset(slot + 1),
 			      btrfs_node_key_ptr_offset(slot),
 			      (nritems - slot) * sizeof(struct btrfs_key_ptr));
 	}
-	if (level) {
+	if (tree_mod_log && level) {
 		ret = tree_mod_log_insert_key(root->fs_info, lower, slot,
 					      MOD_LOG_KEY_ADD);
 		BUG_ON(ret < 0);
@@ -3102,7 +3104,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
 	btrfs_mark_buffer_dirty(split);
 
 	insert_ptr(trans, root, path, &disk_key, split->start,
-		   path->slots[level + 1] + 1, level + 1);
+		   path->slots[level + 1] + 1, level + 1, 1);
 
 	if (path->slots[level] >= mid) {
 		path->slots[level] -= mid;
@@ -3639,7 +3641,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
 	btrfs_set_header_nritems(l, mid);
 	btrfs_item_key(right, &disk_key, 0);
 	insert_ptr(trans, root, path, &disk_key, right->start,
-		   path->slots[1] + 1, 1);
+		   path->slots[1] + 1, 1, 0);
 
 	btrfs_mark_buffer_dirty(right);
 	btrfs_mark_buffer_dirty(l);
@@ -3846,7 +3848,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
 		if (mid <= slot) {
 			btrfs_set_header_nritems(right, 0);
 			insert_ptr(trans, root, path, &disk_key, right->start,
-				   path->slots[1] + 1, 1);
+				   path->slots[1] + 1, 1, 0);
 			btrfs_tree_unlock(path->nodes[0]);
 			free_extent_buffer(path->nodes[0]);
 			path->nodes[0] = right;
@@ -3855,7 +3857,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans,
 		} else {
 			btrfs_set_header_nritems(right, 0);
 			insert_ptr(trans, root, path, &disk_key, right->start,
-					  path->slots[1], 1);
+					  path->slots[1], 1, 0);
 			btrfs_tree_unlock(path->nodes[0]);
 			free_extent_buffer(path->nodes[0]);
 			path->nodes[0] = right;
@@ -5119,18 +5121,6 @@ int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path,
 
 		if (!path->skip_locking) {
 			ret = btrfs_try_tree_read_lock(next);
-			if (!ret && time_seq) {
-				/*
-				 * If we don't get the lock, we may be racing
-				 * with push_leaf_left, holding that lock while
-				 * itself waiting for the leaf we've currently
-				 * locked. To solve this situation, we give up
-				 * on our lock and cycle.
-				 */
-				btrfs_release_path(path);
-				cond_resched();
-				goto again;
-			}
 			if (!ret) {
 				btrfs_set_path_blocking(path);
 				btrfs_tree_read_lock(next);

trunk/fs/btrfs/disk-io.c

@@ -2354,17 +2354,12 @@ int open_ctree(struct super_block *sb,
 				  BTRFS_CSUM_TREE_OBJECTID, csum_root);
 	if (ret)
 		goto recovery_tree_root;
+
 	csum_root->track_dirty = 1;
 
 	fs_info->generation = generation;
 	fs_info->last_trans_committed = generation;
 
-	ret = btrfs_recover_balance(fs_info);
-	if (ret) {
-		printk(KERN_WARNING "btrfs: failed to recover balance\n");
-		goto fail_block_groups;
-	}
-
 	ret = btrfs_init_dev_stats(fs_info);
 	if (ret) {
 		printk(KERN_ERR "btrfs: failed to init dev_stats: %d\n",
@@ -2490,23 +2485,20 @@ int open_ctree(struct super_block *sb,
 		goto fail_trans_kthread;
 	}
 
-	if (sb->s_flags & MS_RDONLY)
-		return 0;
-
-	down_read(&fs_info->cleanup_work_sem);
-	if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) ||
-	    (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {
+	if (!(sb->s_flags & MS_RDONLY)) {
+		down_read(&fs_info->cleanup_work_sem);
+		err = btrfs_orphan_cleanup(fs_info->fs_root);
+		if (!err)
+			err = btrfs_orphan_cleanup(fs_info->tree_root);
 		up_read(&fs_info->cleanup_work_sem);
-		close_ctree(tree_root);
-		return ret;
-	}
-	up_read(&fs_info->cleanup_work_sem);
 
-	ret = btrfs_resume_balance_async(fs_info);
-	if (ret) {
-		printk(KERN_WARNING "btrfs: failed to resume balance\n");
-		close_ctree(tree_root);
-		return ret;
+		if (!err)
+			err = btrfs_recover_balance(fs_info->tree_root);
+
+		if (err) {
+			close_ctree(tree_root);
+			return err;
+		}
 	}
 
 	return 0;