On 11/3/21 9:25 PM, Darrick J. Wong wrote:
On Wed, Sep 15, 2021 at 04:12:07PM -0700, Darrick J. Wong wrote:
From: Darrick J. Wong <djwong@xxxxxxxxxx>
The V4 filesystem format is deprecated in the upstream Linux kernel. In
September 2025 it will be turned off by default in the kernel and five
years after that, support will be removed entirely. Warn people
formatting new filesystems with the old format, particularly since V4 is
not the default.
Friendly ping? I don't see this in for-next, but OTOH there hasn't been
a release either... ;)
Not forgotten - I'm just very behind. Ran it through regression tests and just
wanted to fix up the dumb header file mistake before pushing out -rc1.
-Eric
--D
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
mkfs/xfs_mkfs.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index 53904677..b8c11ce9 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2103,6 +2103,15 @@ _("Directory ftype field always enabled on CRC enabled filesystems\n"));
}
} else { /* !crcs_enabled */
+ /*
+ * The V4 filesystem format is deprecated in the upstream Linux
+ * kernel. In September 2025 it will be turned off by default
+ * in the kernel and in September 2030 support will be removed
+ * entirely.
+ */
+ fprintf(stdout,
+_("V4 filesystems are deprecated and will not be supported by future versions.\n"));
+
/*
* The kernel doesn't support crc=0,finobt=1 filesystems.
* If crcs are not enabled and the user has not explicitly
