[PATCH 012/115] xfs: capture inode generation numbers in the ondisk exchmaps log item

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Source kernel commit: 14f19991020b3c712d626727c17599f134cc6efa

Per some very late review comments, capture the generation numbers of
both inodes involved in a file content exchange operation so that we
don't accidentally target files with have been reallocated.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
---
 libxfs/xfs_log_format.h |    2 ++
 1 file changed, 2 insertions(+)


diff --git a/libxfs/xfs_log_format.h b/libxfs/xfs_log_format.h
index 8dbe1f997..accba2acd 100644
--- a/libxfs/xfs_log_format.h
+++ b/libxfs/xfs_log_format.h
@@ -896,6 +896,8 @@ struct xfs_xmi_log_format {
 
 	uint64_t		xmi_inode1;	/* inumber of first file */
 	uint64_t		xmi_inode2;	/* inumber of second file */
+	uint32_t		xmi_igen1;	/* generation of first file */
+	uint32_t		xmi_igen2;	/* generation of second file */
 	uint64_t		xmi_startoff1;	/* block offset into file1 */
 	uint64_t		xmi_startoff2;	/* block offset into file2 */
 	uint64_t		xmi_blockcount;	/* number of blocks */





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