Merge commit 'v2.6.30-rc5' into core/iommu

Merge reason: core/iommu was on an .30-rc1 base,
              update it to .30-rc5 to refresh.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 files changed, 112 insertions, 40 deletions

diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index 7d60448..b574431 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -290,6 +290,21 @@ out_attach:
 	else
 		mlog_errno(ret);
 
+	/*
+	 * In case of error, manually free the allocation and do the iput().
+	 * We need to do this because error here means no d_instantiate(),
+	 * which means iput() will not be called during dput(dentry).
+	 */
+	if (ret < 0 && !alias) {
+		ocfs2_lock_res_free(&dl->dl_lockres);
+		BUG_ON(dl->dl_count != 1);
+		spin_lock(&dentry_attach_lock);
+		dentry->d_fsdata = NULL;
+		spin_unlock(&dentry_attach_lock);
+		kfree(dl);
+		iput(inode);
+	}
+
 	dput(alias);
 
 	return ret;
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index e71160c..c575230 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2697,7 +2697,7 @@ static int ocfs2_dx_dir_index_block(struct inode *dir,
 				    u32 *num_dx_entries,
 				    struct buffer_head *dirent_bh)
 {
-	int ret, namelen, i;
+	int ret = 0, namelen, i;
 	char *de_buf, *limit;
 	struct ocfs2_dir_entry *de;
 	struct buffer_head *dx_leaf_bh;
@@ -2934,7 +2934,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 	 */
 	BUG_ON(alloc > 2);
 
-	ret = ocfs2_reserve_clusters(osb, alloc, &data_ac);
+	ret = ocfs2_reserve_clusters(osb, alloc + dx_alloc, &data_ac);
 	if (ret) {
 		mlog_errno(ret);
 		goto out;
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index de3da8e..15713cb 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -100,7 +100,8 @@ static struct dentry *ocfs2_get_dentry(struct super_block *sb,
 
 	/* If the inode allocator bit is clear, this inode must be stale */
 	if (!set) {
-		mlog(0, "inode %llu suballoc bit is clear\n", blkno);
+		mlog(0, "inode %llu suballoc bit is clear\n",
+		     (unsigned long long)blkno);
 		status = -ESTALE;
 		goto unlock_nfs_sync;
 	}
@@ -114,7 +115,7 @@ check_err:
 	if (status < 0) {
 		if (status == -ESTALE) {
 			mlog(0, "stale inode ino: %llu generation: %u\n",
-			     blkno, handle->ih_generation);
+			     (unsigned long long)blkno, handle->ih_generation);
 		}
 		result = ERR_PTR(status);
 		goto bail;
@@ -129,8 +130,8 @@ check_err:
 check_gen:
 	if (handle->ih_generation != inode->i_generation) {
 		iput(inode);
-		mlog(0, "stale inode ino: %llu generation: %u\n", blkno,
-		     handle->ih_generation);
+		mlog(0, "stale inode ino: %llu generation: %u\n",
+		     (unsigned long long)blkno, handle->ih_generation);
 		result = ERR_PTR(-ESTALE);
 		goto bail;
 	}
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8672b95..c2a87c8 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1912,6 +1912,22 @@ out_sems:
 	return written ? written : ret;
 }
 
+static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,
+				struct file *out,
+				struct splice_desc *sd)
+{
+	int ret;
+
+	ret = ocfs2_prepare_inode_for_write(out->f_path.dentry,	&sd->pos,
+					    sd->total_len, 0, NULL);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	return splice_from_pipe_feed(pipe, sd, pipe_to_file);
+}
+
 static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
 				       struct file *out,
 				       loff_t *ppos,
@@ -1919,38 +1935,76 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
 				       unsigned int flags)
 {
 	int ret;
-	struct inode *inode = out->f_path.dentry->d_inode;
+	struct address_space *mapping = out->f_mapping;
+	struct inode *inode = mapping->host;
+	struct splice_desc sd = {
+		.total_len = len,
+		.flags = flags,
+		.pos = *ppos,
+		.u.file = out,
+	};
 
 	mlog_entry("(0x%p, 0x%p, %u, '%.*s')\n", out, pipe,
 		   (unsigned int)len,
 		   out->f_path.dentry->d_name.len,
 		   out->f_path.dentry->d_name.name);
 
-	mutex_lock_nested(&inode->i_mutex, I_MUTEX_PARENT);
+	if (pipe->inode)
+		mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_PARENT);
 
-	ret = ocfs2_rw_lock(inode, 1);
-	if (ret < 0) {
-		mlog_errno(ret);
-		goto out;
-	}
+	splice_from_pipe_begin(&sd);
+	do {
+		ret = splice_from_pipe_next(pipe, &sd);
+		if (ret <= 0)
+			break;
 
-	ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, ppos, len, 0,
-					    NULL);
-	if (ret < 0) {
-		mlog_errno(ret);
-		goto out_unlock;
-	}
+		mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
+		ret = ocfs2_rw_lock(inode, 1);
+		if (ret < 0)
+			mlog_errno(ret);
+		else {
+			ret = ocfs2_splice_to_file(pipe, out, &sd);
+			ocfs2_rw_unlock(inode, 1);
+		}
+		mutex_unlock(&inode->i_mutex);
+	} while (ret > 0);
+	splice_from_pipe_end(pipe, &sd);
 
 	if (pipe->inode)
-		mutex_lock_nested(&pipe->inode->i_mutex, I_MUTEX_CHILD);
-	ret = generic_file_splice_write_nolock(pipe, out, ppos, len, flags);
-	if (pipe->inode)
 		mutex_unlock(&pipe->inode->i_mutex);
 
-out_unlock:
-	ocfs2_rw_unlock(inode, 1);
-out:
-	mutex_unlock(&inode->i_mutex);
+	if (sd.num_spliced)
+		ret = sd.num_spliced;
+
+	if (ret > 0) {
+		unsigned long nr_pages;
+
+		*ppos += ret;
+		nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+
+		/*
+		 * If file or inode is SYNC and we actually wrote some data,
+		 * sync it.
+		 */
+		if (unlikely((out->f_flags & O_SYNC) || IS_SYNC(inode))) {
+			int err;
+
+			mutex_lock(&inode->i_mutex);
+			err = ocfs2_rw_lock(inode, 1);
+			if (err < 0) {
+				mlog_errno(err);
+			} else {
+				err = generic_osync_inode(inode, mapping,
+						  OSYNC_METADATA|OSYNC_DATA);
+				ocfs2_rw_unlock(inode, 1);
+			}
+			mutex_unlock(&inode->i_mutex);
+
+			if (err)
+				ret = err;
+		}
+		balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
+	}
 
 	mlog_exit(ret);
 	return ret;
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 619dd7f..eb7b763 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -437,8 +437,9 @@ static inline int ocfs2_unlink_credits(struct super_block *sb)
 }
 
 /* dinode + orphan dir dinode + inode alloc dinode + orphan dir entry +
- * inode alloc group descriptor + orphan dir index leaf */
-#define OCFS2_DELETE_INODE_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 3)
+ * inode alloc group descriptor + orphan dir index root +
+ * orphan dir index leaf */
+#define OCFS2_DELETE_INODE_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 4)
 
 /* dinode update, old dir dinode update, new dir dinode update, old
  * dir dir entry, new dir dir entry, dir entry update for renaming
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 2220f93..33464c6 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -1025,10 +1025,8 @@ static int ocfs2_rename(struct inode *old_dir,
 	struct inode *orphan_dir = NULL;
 	struct ocfs2_dinode *newfe = NULL;
 	char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
-	struct buffer_head *orphan_entry_bh = NULL;
 	struct buffer_head *newfe_bh = NULL;
 	struct buffer_head *old_inode_bh = NULL;
-	struct buffer_head *insert_entry_bh = NULL;
 	struct ocfs2_super *osb = NULL;
 	u64 newfe_blkno, old_de_ino;
 	handle_t *handle = NULL;
@@ -1455,8 +1453,6 @@ bail:
 	brelse(old_inode_bh);
 	brelse(old_dir_bh);
 	brelse(new_dir_bh);
-	brelse(orphan_entry_bh);
-	brelse(insert_entry_bh);
 
 	mlog_exit(status);
 
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index b4ca591..8439f6b 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -2197,26 +2197,29 @@ static int ocfs2_get_suballoc_slot_bit(struct ocfs2_super *osb, u64 blkno,
 	struct buffer_head *inode_bh = NULL;
 	struct ocfs2_dinode *inode_fe;
 
-	mlog_entry("blkno: %llu\n", blkno);
+	mlog_entry("blkno: %llu\n", (unsigned long long)blkno);
 
 	/* dirty read disk */
 	status = ocfs2_read_blocks_sync(osb, blkno, 1, &inode_bh);
 	if (status < 0) {
-		mlog(ML_ERROR, "read block %llu failed %d\n", blkno, status);
+		mlog(ML_ERROR, "read block %llu failed %d\n",
+		     (unsigned long long)blkno, status);
 		goto bail;
 	}
 
 	inode_fe = (struct ocfs2_dinode *) inode_bh->b_data;
 	if (!OCFS2_IS_VALID_DINODE(inode_fe)) {
-		mlog(ML_ERROR, "invalid inode %llu requested\n", blkno);
+		mlog(ML_ERROR, "invalid inode %llu requested\n",
+		     (unsigned long long)blkno);
 		status = -EINVAL;
 		goto bail;
 	}
 
-	if (le16_to_cpu(inode_fe->i_suballoc_slot) != OCFS2_INVALID_SLOT &&
+	if (le16_to_cpu(inode_fe->i_suballoc_slot) != (u16)OCFS2_INVALID_SLOT &&
 	    (u32)le16_to_cpu(inode_fe->i_suballoc_slot) > osb->max_slots - 1) {
 		mlog(ML_ERROR, "inode %llu has invalid suballoc slot %u\n",
-		     blkno, (u32)le16_to_cpu(inode_fe->i_suballoc_slot));
+		     (unsigned long long)blkno,
+		     (u32)le16_to_cpu(inode_fe->i_suballoc_slot));
 		status = -EINVAL;
 		goto bail;
 	}
@@ -2251,7 +2254,8 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
 	u64 bg_blkno;
 	int status;
 
-	mlog_entry("blkno: %llu bit: %u\n", blkno, (unsigned int)bit);
+	mlog_entry("blkno: %llu bit: %u\n", (unsigned long long)blkno,
+		   (unsigned int)bit);
 
 	alloc_fe = (struct ocfs2_dinode *)alloc_bh->b_data;
 	if ((bit + 1) > ocfs2_bits_per_group(&alloc_fe->id2.i_chain)) {
@@ -2266,7 +2270,8 @@ static int ocfs2_test_suballoc_bit(struct ocfs2_super *osb,
 	status = ocfs2_read_group_descriptor(suballoc, alloc_fe, bg_blkno,
 					     &group_bh);
 	if (status < 0) {
-		mlog(ML_ERROR, "read group %llu failed %d\n", bg_blkno, status);
+		mlog(ML_ERROR, "read group %llu failed %d\n",
+		     (unsigned long long)bg_blkno, status);
 		goto bail;
 	}
 
@@ -2300,7 +2305,7 @@ int ocfs2_test_inode_bit(struct ocfs2_super *osb, u64 blkno, int *res)
 	struct inode *inode_alloc_inode;
 	struct buffer_head *alloc_bh = NULL;
 
-	mlog_entry("blkno: %llu", blkno);
+	mlog_entry("blkno: %llu", (unsigned long long)blkno);
 
 	status = ocfs2_get_suballoc_slot_bit(osb, blkno, &suballoc_slot,
 					     &suballoc_bit);