[LU-2760] Add error handling to ext4_mkdir on RHEL6

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Labels: patch
• Severity: 3
• Assignee: Bob Glossman (Inactive)
• Reporter: Jeff Mahoney (Inactive)

Description

The SLES implementation of ext4_mkdir has added error handling via upstream kernel commit dabd991f (v2.6.38). This causes the context for ext4_add_dot_dotdot/ext4_mkdir to differ between the two releases. In order to resync the context so the code is more similar between the releases, we can backport the ext4_mkdir error handling and have essentially the same code on both releases.