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GET /api/patches/2219477/?format=api
{ "id": 2219477, "url": "http://patchwork.ozlabs.org/api/patches/2219477/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260403040328.2385083-2-tytso@mit.edu/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260403040328.2385083-2-tytso@mit.edu>", "list_archive_url": null, "date": "2026-04-03T04:03:26", "name": "[1/3] libsupport: fix portability issues with the bthread.c", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "658345b90c23f829a1fd74486ddc3a88244715ae", "submitter": { "id": 350, "url": "http://patchwork.ozlabs.org/api/people/350/?format=api", "name": "Theodore Ts'o", "email": "tytso@mit.edu" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260403040328.2385083-2-tytso@mit.edu/mbox/", "series": [ { "id": 498585, "url": "http://patchwork.ozlabs.org/api/series/498585/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=498585", "date": "2026-04-03T04:03:25", "name": "Fix portability issues on MacOS", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498585/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219477/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219477/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=lXvI=CC=vger.kernel.org=linux-ext4+bounces-15615-patchwork-incoming=ozlabs.org@ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-ext4@vger.kernel.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "patchwork-incoming@ozlabs.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=mit.edu header.i=@mit.edu header.a=rsa-sha256\n header.s=outgoing header.b=Vt6EZ7yk;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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gandalf.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=mit.edu; dkim=pass (2048-bit key;\n unprotected) header.d=mit.edu header.i=@mit.edu header.a=rsa-sha256\n header.s=outgoing header.b=Vt6EZ7yk; dkim-atps=neutral;\n spf=pass (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=linux-ext4+bounces-15615-patchwork-incoming=ozlabs.org@vger.kernel.org;\n receiver=ozlabs.org) smtp.mailfrom=vger.kernel.org", "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=mit.edu;\n spf=pass smtp.mailfrom=mit.edu;\n dkim=pass (2048-bit key) header.d=mit.edu header.i=@mit.edu\n header.b=Vt6EZ7yk; arc=none smtp.client-ip=18.9.28.11" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing;\n\tt=1775189015; bh=8a9XubKYofDKTEsqwFWca7AWNfZeMqbD+7hjz0rLfBE=;\n\th=From:Subject:Date:Message-ID:MIME-Version;\n\tb=Vt6EZ7ykO9VqOH7uARl4cRO0TQtGd2syGOG7qRWLgD0x48z7rGscI7dIJgEgqu59s\n\t 7rllPYJRz6gM2P6/USfpw45hMY41LOpK1If05Pb5xx9DRTu7fg/f0P7NT4m/OVzaEk\n\t aL+2tJ//+0+YotmCN9+9C+OBmr06w5XYoji/wnwS68KuBd0bSUI9+xhC4YNodYFEIR\n\t s1/yGbF9QN2j+gB6aNDMMLDP6ju3ccNKPKhQBISuDwgI8yDXErroMEkhQ83m/387wz\n\t AOefSX4N+UL+xVWb454ecs5OTv1InmltRtk0iN68wWGM8mLdWH2cWp+MIBY5+bJ4QH\n\t nCJ1JiU2dgzJQ==", "From": "\"Theodore Ts'o\" <tytso@mit.edu>", "To": "Ext4 Developers List <linux-ext4@vger.kernel.org>", "Cc": "\"Darrick J. Wong\" <djwong@kernel.org>, \"Theodore Ts'o\" <tytso@mit.edu>", "Subject": "[PATCH 1/3] libsupport: fix portability issues with the bthread.c", "Date": "Fri, 3 Apr 2026 00:03:26 -0400", "Message-ID": "<20260403040328.2385083-2-tytso@mit.edu>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260403040328.2385083-1-tytso@mit.edu>", "References": "<20260403040328.2385083-1-tytso@mit.edu>", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Spam-Status": "No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\n\tHEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org" }, "content": "The function pthread_setname_np() is non-portable; that's what the\n\"np\" means. In particular, on Mac systems, the function takes only a\nsingle argument, while on most other systems which have the function,\nit takes two arguments.\n\nAlso fix a problem where a 1-bit signed integer can only accept values\nof 0 or -1. Change it to be a 1-bit unsigned integer, which can\naccept values of 0 or 1. Clang will issue a warning if 1-bit signed\ninteger are used incorrectly, and fail with -Werror.\n\nSigned-off-by: Theodore Ts'o <tytso@mit.edu>\n---\n configure | 6 ++++++\n configure.ac | 1 +\n lib/config.h.in | 24 +++++++++++++++---------\n lib/support/bthread.c | 12 ++++++++++--\n 4 files changed, 32 insertions(+), 11 deletions(-)", "diff": "diff --git a/configure b/configure\nindex 4da5439fe..b9a82dcec 100755\n--- a/configure\n+++ b/configure\n@@ -13887,6 +13887,12 @@ if test \"x$ac_cv_func_pwrite64\" = xyes\n then :\n printf \"%s\\n\" \"#define HAVE_PWRITE64 1\" >>confdefs.h\n \n+fi\n+ac_fn_c_check_func \"$LINENO\" \"pthread_setname_np\" \"ac_cv_func_pthread_setname_np\"\n+if test \"x$ac_cv_func_pthread_setname_np\" = xyes\n+then :\n+ printf \"%s\\n\" \"#define HAVE_PTHREAD_SETNAME_NP 1\" >>confdefs.h\n+\n fi\n ac_fn_c_check_func \"$LINENO\" \"qsort_r\" \"ac_cv_func_qsort_r\"\n if test \"x$ac_cv_func_qsort_r\" = xyes\ndiff --git a/configure.ac b/configure.ac\nindex ecef9df39..2473879fd 100644\n--- a/configure.ac\n+++ b/configure.ac\n@@ -1269,6 +1269,7 @@ AC_CHECK_FUNCS(m4_flatten([\n \tpwrite\n \tpread64\n \tpwrite64\n+\tpthread_setname_np\n \tqsort_r\n \tsecure_getenv\n \tsetmntent\ndiff --git a/lib/config.h.in b/lib/config.h.in\nindex 8ea7ec2b1..c6cbced5f 100644\n--- a/lib/config.h.in\n+++ b/lib/config.h.in\n@@ -46,9 +46,6 @@\n /* Define to the version of FUSE to use */\n #undef FUSE_USE_VERSION\n \n-/* Define to 1 if fuse supports cache_readdir */\n-#undef HAVE_FUSE_CACHE_READDIR\n-\n /* Define to 1 if you have the 'add_key' function. */\n #undef HAVE_ADD_KEY\n \n@@ -73,9 +70,6 @@\n /* Define to 1 if you have the BSD-style 'qsort_r' function. */\n #undef HAVE_BSD_QSORT_R\n \n-/* Define to 1 if PR_SET_IO_FLUSHER is present */\n-#undef HAVE_PR_SET_IO_FLUSHER\n-\n /* Define to 1 if you have the Mac OS X function\n CFLocaleCopyPreferredLanguages in the CoreFoundation framework. */\n #undef HAVE_CFLOCALECOPYPREFERREDLANGUAGES\n@@ -87,6 +81,9 @@\n /* Define to 1 if you have the 'chflags' function. */\n #undef HAVE_CHFLAGS\n \n+/* Define to 1 if CLOCK_MONOTONIC is present */\n+#undef HAVE_CLOCK_MONOTONIC\n+\n /* Define if the GNU dcgettext() function is already present or preinstalled.\n */\n #undef HAVE_DCGETTEXT\n@@ -136,9 +133,15 @@\n /* Define to 1 if you have the 'fsync' function. */\n #undef HAVE_FSYNC\n \n+/* Define to 1 if FS_IOC_READ_VERITY_METADATA ioctl is available */\n+#undef HAVE_FS_IOC_READ_VERITY_METADATA\n+\n /* Define to 1 if you have the 'ftruncate64' function. */\n #undef HAVE_FTRUNCATE64\n \n+/* Define to 1 if fuse supports cache_readdir */\n+#undef HAVE_FUSE_CACHE_READDIR\n+\n /* Define to 1 if you have the <fuse.h> header file. */\n #undef HAVE_FUSE_H\n \n@@ -313,6 +316,9 @@\n /* Define to 1 if you have the 'pread64' function. */\n #undef HAVE_PREAD64\n \n+/* Define to 1 if PR_SET_IO_FLUSHER is present */\n+#undef HAVE_PR_SET_IO_FLUSHER\n+\n /* Define if you have POSIX threads libraries and header files. */\n #undef HAVE_PTHREAD\n \n@@ -322,6 +328,9 @@\n /* Have PTHREAD_PRIO_INHERIT. */\n #undef HAVE_PTHREAD_PRIO_INHERIT\n \n+/* Define to 1 if you have the 'pthread_setname_np' function. */\n+#undef HAVE_PTHREAD_SETNAME_NP\n+\n /* Define to 1 if you have the 'pwrite' function. */\n #undef HAVE_PWRITE\n \n@@ -699,7 +708,4 @@\n /* Define to 1 on platforms where this makes time_t a 64-bit type. */\n #undef __MINGW_USE_VC2005_COMPAT\n \n-/* Define to 1 if CLOCK_MONOTONIC is present */\n-#undef HAVE_CLOCK_MONOTONIC\n-\n #include <dirpaths.h>\ndiff --git a/lib/support/bthread.c b/lib/support/bthread.c\nindex 936ca0f0f..87eeb1b3d 100644\n--- a/lib/support/bthread.c\n+++ b/lib/support/bthread.c\n@@ -9,6 +9,7 @@\n * %End-Header%\n */\n #include \"config.h\"\n+#ifdef HAVE_PTHREAD\n #include <stdlib.h>\n #include <errno.h>\n #include <pthread.h>\n@@ -33,7 +34,7 @@ struct bthread {\n \tbthread_fn_t fn;\n \tvoid *data;\n \tunsigned int period; /* seconds */\n-\tint can_join:1;\n+\tunsigned int can_join:1;\n };\n \n /* Wait for a signal or for the periodic interval */\n@@ -101,7 +102,13 @@ int bthread_create(const char *name, bthread_fn_t fn, void *data,\n \tif (error)\n \t\tgoto out_cond;\n \n+#ifdef HAVE_PTHREAD_SETNAME_NP\n+#ifdef __APPLE__\n+\tpthread_setname_np(name);\n+#else\n \tpthread_setname_np(bt->thread, name);\n+#endif\n+#endif\n \n \t*btp = bt;\n \treturn 0;\n@@ -178,7 +185,7 @@ int bthread_cancel(struct bthread *bt)\n /* Ask the thread to cancel itself and wait for it */\n void bthread_stop(struct bthread *bt)\n {\n-\tint need_join = 0;\n+\tunsigned int need_join = 0;\n \n \tpthread_mutex_lock(&bt->lock);\n \tswitch (bt->state) {\n@@ -199,3 +206,4 @@ void bthread_stop(struct bthread *bt)\n \tif (need_join)\n \t\tpthread_join(bt->thread, NULL);\n }\n+#endif /* HAVE_PTHREAD */\n", "prefixes": [ "1/3" ] }