| commit | 86d80f973434de24d8a807a92cd59d5ced7bd519 | [log] [tgz] |
|---|---|---|
| author | Trond Myklebust <trond.myklebust@primarydata.com> | Fri Jul 31 16:24:30 2015 -0400 |
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | Mon Aug 10 19:08:13 2015 -0400 |
| tree | d1c6aa87eac0551a3d65a7bdd0a2b1bc49f4c29a | |
| parent | 74d33293e467df61de1b1d8b2fbe29e550dec33b [diff] |
NFSv4.1/pnfs: Fix atomicity of commit list updates
pnfs_layout_mark_request_commit() needs to ensure that it adds the
request to the commit list atomically with all the other updates
in order to prevent corruption to buckets[ds_commit_idx].wlseg
due to races with pnfs_generic_clear_request_commit().
Fixes: 338d00cfef07d ("pnfs: Refactor the *_layout_mark_request_commit...")
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>