summaryrefslogtreecommitdiff
path: root/fs/xfs/xfs_inode_fork.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/xfs/xfs_inode_fork.c')
-rw-r--r--fs/xfs/xfs_inode_fork.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index cfee14a83cfe..73514c0486b7 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -431,6 +431,8 @@ xfs_iread_extents(
xfs_ifork_t *ifp;
xfs_extnum_t nextents;
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
ip->i_mount);
@@ -721,15 +723,16 @@ xfs_idestroy_fork(
}
/*
- * xfs_iextents_copy()
+ * Convert in-core extents to on-disk form
*
- * This is called to copy the REAL extents (as opposed to the delayed
- * allocation extents) from the inode into the given buffer. It
- * returns the number of bytes copied into the buffer.
+ * For either the data or attr fork in extent format, we need to endian convert
+ * the in-core extent as we place them into the on-disk inode.
*
- * If there are no delayed allocation extents, then we can just
- * memcpy() the extents into the buffer. Otherwise, we need to
- * examine each extent in turn and skip those which are delayed.
+ * In the case of the data fork, the in-core and on-disk fork sizes can be
+ * different due to delayed allocation extents. We only copy on-disk extents
+ * here, so callers must always use the physical fork size to determine the
+ * size of the buffer passed to this routine. We will return the size actually
+ * used.
*/
int
xfs_iextents_copy(