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| Filename | Latest commit message | Latest commit date |
|---|---|---|
0c4ab18fc3
Previously steam_open.cocci was treating only wait_event_.* - e.g. wait_event_interruptible - as a blocking operation. However e.g. wait_for_completion_interruptible is also blocking, and so from this point of view it would be more logical to treat all wait_.* as a blocking point. The logic of this change actually came up for real when drivers/pci/switch/switchtec.c changed from using wait_event_interruptible to wait_for_completion_interruptible: https://lore.kernel.org/linux-pci/20190413170056.GA11293@deco.navytux.spb.ru/ https://lore.kernel.org/linux-pci/20190415145456.GA15280@deco.navytux.spb.ru/ https://lore.kernel.org/linux-pci/20190415154102.GB17661@deco.navytux.spb.ru/ For a driver that uses nonseekable_open with read/write having stream semantic and read also calling e.g. wait_for_completion_interruptible, running stream_open.cocci before this patch would produce: WARNING: <driver>_fops: .read() and .write() have stream semantic; safe to change nonseekable_open -> stream_open. while after this patch it will report: ERROR: <driver>_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix. Signed-off-by: Kirill Smelkov <kirr@nexedi.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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| README | ||
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.