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a0f6d924ca
Without a NULL fs_info the helpers will print something like BTRFS error (device <unknown>): ... This can happen in contexts where fs_info is not available at all or it's potentially unsafe due to object lifetime. The <unknown> stub does not bring much information and with the prefix makes the message unnecessarily longer. Remove it for the NULL fs_info case. BTRFS error: ... Callers can add the device information to the message itself if needed. Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
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.