Date: Sun, 27 Aug 2023 07:11:42 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: e579e7e3281f - stable/12 - libthr pshared: correct a bug in allocation Message-ID: <202308270711.37R7Bg7k062880@gitrepo.freebsd.org>
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The branch stable/12 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=e579e7e3281f8f096d5a3ca341adcf26bb0df765 commit e579e7e3281f8f096d5a3ca341adcf26bb0df765 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-02-01 20:12:45 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-08-27 07:10:52 +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 56def22f9ab9..3f303d52c2de 100644 --- a/lib/libthr/thread/thr_pshared.c +++ b/lib/libthr/thread/thr_pshared.c @@ -227,11 +227,16 @@ __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)
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