| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1398779270-10271-2-git-send-email-jolsa@kernel.org> Date: Tue, 29 Apr 2014 15:47:45 +0200 From: Jiri Olsa <jolsa@...nel.org> To: Ingo Molnar <mingo@...nel.org> Cc: linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>, Jiri Olsa <jolsa@...nel.org> Subject: [PATCH 1/6] perf tools: Handle EINTR error for readn/writen From: Namhyung Kim <namhyung@...nel.org> Those readn/writen functions are to ensure read/write does I/O for a given size exactly. But ion() - its implementation - does not handle in case it returns prematurely due to a signal. As it's not an error itself so just retry the operation. Signed-off-by: Namhyung Kim <namhyung@...nel.org> Link: http://lkml.kernel.org/r/1398346054-3322-1-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@...nel.org> --- tools/perf/util/util.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 9f66549..7fff6be 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -166,6 +166,8 @@ static ssize_t ion(bool is_read, int fd, void *buf, size_t n) ssize_t ret = is_read ? read(fd, buf, left) : write(fd, buf, left); + if (ret < 0 && errno == EINTR) + continue; if (ret <= 0) return ret; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists