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Now it will show 0 or CLOEXEC, the only !0 value returned by the kernel for fcntl(fd, F_GETFD). And for F_SETFD: 6870.267 ( 0.004 ms): make/29812 fcntl(fd: 7</home/acme/git/linux/tools/build/Build.include>, cmd: SETFD, arg: CLOEXEC) = 0 6873.805 ( 0.002 ms): make/29816 fcntl(fd: 6</home/acme/git/linux/tools/build/Makefile.build>, cmd: SETFD, arg: CLOEXEC) = 0 <SNIP> 77986.150 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 45</dev/snd/pcmC1D0p>, cmd: SETFD, arg: CLOEXEC) = 0 77986.271 ( 0.006 ms): alsa-sink-ALC3/2042 fcntl(fd: 23</dev/snd/controlC1>, cmd: SETFD, arg: CLOEXEC) = 0 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-sz9dob7t4zd6m65femazpaah@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.