diff options
Diffstat (limited to 'src/third_party/wiredtiger/src/cache/cache_las.c')
| -rw-r--r-- | src/third_party/wiredtiger/src/cache/cache_las.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/third_party/wiredtiger/src/cache/cache_las.c b/src/third_party/wiredtiger/src/cache/cache_las.c index 41da4225f3a..06c6354148c 100644 --- a/src/third_party/wiredtiger/src/cache/cache_las.c +++ b/src/third_party/wiredtiger/src/cache/cache_las.c @@ -1,5 +1,5 @@ /*- - * Copyright (c) 2014-2016 MongoDB, Inc. + * Copyright (c) 2014-2017 MongoDB, Inc. * Copyright (c) 2008-2014 WiredTiger, Inc. * All rights reserved. * @@ -140,8 +140,9 @@ __wt_las_set_written(WT_SESSION_IMPL *session) conn->las_written = true; /* - * Push the flag: unnecessary, but from now page reads must deal - * with lookaside table records, and we only do the write once. + * Future page reads must deal with lookaside table records. + * No write could be cached until a future read might matter, + * the barrier is more documentation than requirement. */ WT_FULL_BARRIER(); } @@ -393,8 +394,8 @@ err: __wt_buf_free(session, key); * arithmetic is signed, so underflow isn't fatal, but check anyway so * we don't skew low over time. */ - if (remove_cnt > S2C(session)->las_record_cnt) - S2C(session)->las_record_cnt = 0; + if (remove_cnt > conn->las_record_cnt) + conn->las_record_cnt = 0; else if (remove_cnt > 0) (void)__wt_atomic_subi64(&conn->las_record_cnt, remove_cnt); |