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321f69f86a
When closing a device, btrfs_close_one_device() first allocates a new device, copies the device to close's name, replaces it in the dev_list with the copy and then finally frees it. This involves two memory allocation, which can potentially fail. As this code path is tricky to unwind, the allocation failures where handled by BUG_ON()s. But this copying isn't strictly needed, all that is needed is resetting the device in question to it's state it had after the allocation. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| kernel | ||
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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.