[PATCH v2 1/2] generic/020: adjust max_attrval_size for ceph

["Luís Henriques" <lhenriques@suse.de>]

CephFS doesn't have a maximum xattr size.  Instead, it imposes a maximum
size for the full set of xattrs names+values, which by default is 64K.

This patch fixes the max_attrval_size so that it is slightly < 64K in
order to accommodate any already existing xattrs in the file.

Signed-off-by: Luís Henriques <lhenriques@suse.de>
---
 tests/generic/020 | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/generic/020 b/tests/generic/020
index d8648e96286e..76f13220fe85 100755
--- a/tests/generic/020
+++ b/tests/generic/020
@@ -128,7 +128,7 @@ _attr_get_max()
 	pvfs2)
 		max_attrval_size=8192
 		;;
-	xfs|udf|9p|ceph)
+	xfs|udf|9p)
 		max_attrval_size=65536
 		;;
 	bcachefs)
@@ -139,6 +139,14 @@ _attr_get_max()
 		# the underlying filesystem, so just use the lowest value above.
 		max_attrval_size=1024
 		;;
+	ceph)
+		# CephFS does not have a maximum value for attributes.  Instead,
+		# it imposes a maximum size for the full set of xattrs
+		# names+values, which by default is 64K.  Set this to a value
+		# that is slightly smaller than 64K so that it can accommodate
+		# already existing xattrs.
+		max_attrval_size=65000
+		;;
 	*)
 		# Assume max ~1 block of attrs
 		BLOCK_SIZE=`_get_block_size $TEST_DIR`