[LU-13937] Do not return -ENODATA while removing XATTR_NAME_FID

• Type: Improvement
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.15.0
• Labels: patch
• Assignee: Artem Blagodarenko (Inactive)
• Reporter: Artem Blagodarenko (Inactive)

Description

On OST with node size < 256 stripe information is stored in LMA.

osd_xattr_set_pfid() expects XATTR_NAME_FID to be exist if LMAC_STRIPE_INF is absent and delete it if LU_XATTR_REPLACE is set. There are some cases, after upgrade, when LMAC_STRIPE_INF is absent and there is no XATTR_NAME_FID.

No need return -ENODATA to the client, because having XATTR_NAME_FID absent is what situation requires, so osd_xattr_set_pfid() can continue to feel LMA.