The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=c8452bdeed4fc1f1feadf36c6008367263292254
commit c8452bdeed4fc1f1feadf36c6008367263292254 Author: Konstantin Belousov <[email protected]> AuthorDate: 2023-02-01 20:12:45 +0000 Commit: Konstantin Belousov <[email protected]> CommitDate: 2023-02-08 00:26:59 +0000 libthr pshared: correct a bug in allocation PR: 269277 (cherry picked from commit 25c862ae503a1c99458f4e055fd50c878fadbea3) --- lib/libthr/thread/thr_pshared.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/lib/libthr/thread/thr_pshared.c b/lib/libthr/thread/thr_pshared.c index 37b44ab73582..446e9983bcae 100644 --- a/lib/libthr/thread/thr_pshared.c +++ b/lib/libthr/thread/thr_pshared.c @@ -232,11 +232,16 @@ __thr_pshared_offpage(void *key, int doalloc) int fd, ins_done; curthread = _get_curthread(); - pshared_rlock(curthread); - res = pshared_lookup(key); - pshared_unlock(curthread); - if (res != NULL) - return (res); + if (doalloc) { + pshared_destroy(curthread, key); + res = NULL; + } else { + pshared_rlock(curthread); + res = pshared_lookup(key); + pshared_unlock(curthread); + if (res != NULL) + return (res); + } fd = _umtx_op(NULL, UMTX_OP_SHM, doalloc ? UMTX_SHM_CREAT : UMTX_SHM_LOOKUP, key, NULL); if (fd == -1)
