tree f9023b29be9918f438feb56a21126296a3fd8c9a
parent 0847ef88c3c9318d85e92fc42369df0e0190e1ab
author Trond Myklebust <trond.myklebust@primarydata.com> 1438637913 -0400
committer Trond Myklebust <trond.myklebust@primarydata.com> 1439405778 -0400

pNFS: Tighten up locking around DS commit buckets

I'm not aware of any bugreports around this issue, but the locking
around the pnfs_commit_bucket is inconsistent at best. This patch
tightens it up by ensuring that the 'bucket->committing' list is always
changed atomically w.r.t. the 'bucket->clseg' layout segment tracking.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>