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Giuseppe Scrivano 23afeaeff3
selftests: core: add tests for CLOSE_RANGE_CLOEXEC
check that close_range(initial_fd, last_fd, CLOSE_RANGE_CLOEXEC)
correctly sets the close-on-exec bit for the specified file
descriptors.

Open 100 file descriptors and set the close-on-exec flag for a subset
of them first, then set it for every file descriptor above 2.  Make
sure RLIMIT_NOFILE doesn't affect the result.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Link: https://lore.kernel.org/r/20201118104746.873084-3-gscrivan@redhat.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2020-12-04 12:06:16 +01:00
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fs fs, close_range: add flag CLOSE_RANGE_CLOEXEC 2020-12-04 12:06:15 +01:00
include fs, close_range: add flag CLOSE_RANGE_CLOEXEC 2020-12-04 12:06:15 +01:00
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tools selftests: core: add tests for CLOSE_RANGE_CLOEXEC 2020-12-04 12:06:16 +01:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

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.