udf: Init/maintain file entry checkpoint field

In accordance with ECMA 1.67 Part 4, 14.9.15, the checkpoint field
should be initialized to 1 at creation. (Zero is *not* a valid value.)

Signed-off-by: Steven P. Nickel <snickel@focusinfo.com>
Signed-off-by: Jan Kara <jack@suse.cz>

3 files changed, 6 insertions, 0 deletions

diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 05ab48195be9..7e5aae4bf46f 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -116,6 +116,7 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode, int *err)
         iinfo->i_lenEAttr = 0;
         iinfo->i_lenAlloc = 0;
         iinfo->i_use = 0;
+        iinfo->i_checkpoint = 1;
         if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
                 iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
         else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 7699df7b3198..91c6f2311f35 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1358,6 +1358,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                 iinfo->i_unique = le64_to_cpu(fe->uniqueID);
                 iinfo->i_lenEAttr = le32_to_cpu(fe->lengthExtendedAttr);
                 iinfo->i_lenAlloc = le32_to_cpu(fe->lengthAllocDescs);
+                iinfo->i_checkpoint = le32_to_cpu(fe->checkpoint);
                 offset = sizeof(struct fileEntry) + iinfo->i_lenEAttr;
         } else {
                 inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
@@ -1379,6 +1380,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
                 iinfo->i_unique = le64_to_cpu(efe->uniqueID);
                 iinfo->i_lenEAttr = le32_to_cpu(efe->lengthExtendedAttr);
                 iinfo->i_lenAlloc = le32_to_cpu(efe->lengthAllocDescs);
+                iinfo->i_checkpoint = le32_to_cpu(efe->checkpoint);
                 offset = sizeof(struct extendedFileEntry) +
                                                         iinfo->i_lenEAttr;
         }
@@ -1607,6 +1609,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 fe->uniqueID = cpu_to_le64(iinfo->i_unique);
                 fe->lengthExtendedAttr = cpu_to_le32(iinfo->i_lenEAttr);
                 fe->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
+                fe->checkpoint = cpu_to_le32(iinfo->i_checkpoint);
                 fe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_FE);
                 crclen = sizeof(struct fileEntry);
         } else {
@@ -1646,6 +1649,7 @@ static int udf_update_inode(struct inode *inode, int do_sync)
                 efe->uniqueID = cpu_to_le64(iinfo->i_unique);
                 efe->lengthExtendedAttr = cpu_to_le32(iinfo->i_lenEAttr);
                 efe->lengthAllocDescs = cpu_to_le32(iinfo->i_lenAlloc);
+                efe->checkpoint = cpu_to_le32(iinfo->i_checkpoint);
                 efe->descTag.tagIdent = cpu_to_le16(TAG_IDENT_EFE);
                 crclen = sizeof(struct extendedFileEntry);
         }
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index d1bd31ea724e..bb8309dcd5c1 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -23,6 +23,7 @@ struct udf_inode_info {
         __u64                   i_lenExtents;
         __u32                   i_next_alloc_block;
         __u32                   i_next_alloc_goal;
+        __u32                   i_checkpoint;
         unsigned                i_alloc_type : 3;
         unsigned                i_efe : 1;      /* extendedFileEntry */
         unsigned                i_use : 1;      /* unallocSpaceEntry */