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[V5,14/20] xfsprogs: Conditionally upgrade existing inodes to use 64-bit extent counters

Message ID 20220121052019.224605-15-chandan.babu@oracle.com (mailing list archive)
State New, archived
Headers show
Series xfsprogs: Extend per-inode extent counters | expand

Commit Message

Chandan Babu R Jan. 21, 2022, 5:20 a.m. UTC 
This commit upgrades inodes to use 64-bit extent counters when they are read
from disk. Inodes are upgraded only when the filesystem instance has
XFS_SB_FEAT_INCOMPAT_NREXT64 incompat flag set.

Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
---
 libxfs/xfs_inode_buf.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/libxfs/xfs_inode_buf.c b/libxfs/xfs_inode_buf.c
index 9db63db9..60feee8b 100644
--- a/libxfs/xfs_inode_buf.c
+++ b/libxfs/xfs_inode_buf.c
@@ -250,6 +250,12 @@  xfs_inode_from_disk(
 	}
 	if (xfs_is_reflink_inode(ip))
 		xfs_ifork_init_cow(ip);
+
+	if ((from->di_version == 3) &&
+	     xfs_has_nrext64(ip->i_mount) &&
+	     !xfs_dinode_has_nrext64(from))
+		ip->i_diflags2 |= XFS_DIFLAG2_NREXT64;
+
 	return 0;
 
 out_destroy_data_fork: