[LU-423] grant code can fail overwrite

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Affects Version/s: Lustre 2.1.0
• Severity: 3
• Assignee: Johann Lombardi (Inactive)
• Reporter: Johann Lombardi (Inactive)

Description

filter_grant_check() returns ENOSPC if the filesystem is full and none of the pages have consumed grants on the client side.
The problem is that overwrite is checked later in filter_commitrw_write(), but the request has failed with ENOSPC before this check.