Merging upstream version 4.19.282.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 15 insertions, 18 deletions

diff --git a/fs/udf/file.c b/fs/udf/file.c
index cd31e4f6d..8fff7ffc3 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -50,7 +50,7 @@ static void __udf_adinicb_readpage(struct page *page)
 	 * So just sample it once and use the same value everywhere.
 	 */
 	kaddr = kmap_atomic(page);
-	memcpy(kaddr, iinfo->i_ext.i_data + iinfo->i_lenEAttr, isize);
+	memcpy(kaddr, iinfo->i_data + iinfo->i_lenEAttr, isize);
 	memset(kaddr + isize, 0, PAGE_SIZE - isize);
 	flush_dcache_page(page);
 	SetPageUptodate(page);
@@ -76,8 +76,7 @@ static int udf_adinicb_writepage(struct page *page,
 	BUG_ON(!PageLocked(page));
 
 	kaddr = kmap_atomic(page);
-	memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
-		i_size_read(inode));
+	memcpy(iinfo->i_data + iinfo->i_lenEAttr, kaddr, i_size_read(inode));
 	SetPageUptodate(page);
 	kunmap_atomic(kaddr);
 	mark_inode_dirty(inode);
@@ -148,26 +147,24 @@ static ssize_t udf_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 		goto out;
 
 	down_write(&iinfo->i_data_sem);
-	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
-		loff_t end = iocb->ki_pos + iov_iter_count(from);
-
-		if (inode->i_sb->s_blocksize <
-				(udf_file_entry_alloc_offset(inode) + end)) {
-			err = udf_expand_file_adinicb(inode);
-			if (err) {
-				inode_unlock(inode);
-				udf_debug("udf_expand_adinicb: err=%d\n", err);
-				return err;
-			}
-		} else {
-			iinfo->i_lenAlloc = max(end, inode->i_size);
-			up_write(&iinfo->i_data_sem);
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB &&
+	    inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) +
+				 iocb->ki_pos + iov_iter_count(from))) {
+		err = udf_expand_file_adinicb(inode);
+		if (err) {
+			inode_unlock(inode);
+			udf_debug("udf_expand_adinicb: err=%d\n", err);
+			return err;
 		}
 	} else
 		up_write(&iinfo->i_data_sem);
 
 	retval = __generic_file_write_iter(iocb, from);
 out:
+	down_write(&iinfo->i_data_sem);
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB && retval > 0)
+		iinfo->i_lenAlloc = inode->i_size;
+	up_write(&iinfo->i_data_sem);
 	inode_unlock(inode);
 
 	if (retval > 0) {
@@ -215,7 +212,7 @@ long udf_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		return put_user(UDF_I(inode)->i_lenEAttr, (int __user *)arg);
 	case UDF_GETEABLOCK:
 		return copy_to_user((char __user *)arg,
-				    UDF_I(inode)->i_ext.i_data,
+				    UDF_I(inode)->i_data,
 				    UDF_I(inode)->i_lenEAttr) ? -EFAULT : 0;
 	default:
 		return -ENOIOCTLCMD;