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006ef266c2
[ Upstream commit3cc64e7ebf] Return value in __load_free_space_cache is not properly set after (unlikely) memory allocation failures and 0 is returned instead. This is not a problem for the caller load_free_space_cache because only value 1 is considered as 'cache loaded' but for clarity it's better to set the errors accordingly. Fixes:a67509c300("Btrfs: add a io_ctl struct and helpers for dealing with the space cache") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.