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| author | mav <mav@FreeBSD.org> | 2015-03-15 16:18:03 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2015-03-15 16:18:03 +0000 |
| commit | 72856e7d90c5821d32ac61c7304d0cfe43349877 (patch) | |
| tree | 04387f187348253cbecaf911daed432e0ee066da /usr.sbin | |
| parent | 2088070eaf7aa449b906195cdaf1149b3f342b09 (diff) | |
| download | FreeBSD-src-72856e7d90c5821d32ac61c7304d0cfe43349877.zip FreeBSD-src-72856e7d90c5821d32ac61c7304d0cfe43349877.tar.gz | |
Close potential race on blockif_close().
Reported by: vangyzen
MFC after: 2 weeks
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/bhyve/block_if.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/usr.sbin/bhyve/block_if.c b/usr.sbin/bhyve/block_if.c index 68a9bae..58960ca 100644 --- a/usr.sbin/bhyve/block_if.c +++ b/usr.sbin/bhyve/block_if.c @@ -579,7 +579,9 @@ blockif_close(struct blockif_ctxt *bc) /* * Stop the block i/o thread */ + pthread_mutex_lock(&bc->bc_mtx); bc->bc_closing = 1; + pthread_mutex_unlock(&bc->bc_mtx); pthread_cond_broadcast(&bc->bc_cond); for (i = 0; i < BLOCKIF_NUMTHR; i++) pthread_join(bc->bc_btid[i], &jval); |
