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[ Upstream commit28e18ee636] The uninitialized variable dn.node_changed does not get set when a call to f2fs_get_node_page fails. This uninitialized value gets used in the call to f2fs_balance_fs() that may or not may not balances dirty node and dentry pages depending on the uninitialized state of the variable. Fix this by only calling f2fs_balance_fs if err is not set. Thanks to Jaegeuk Kim for suggesting an appropriate fix. Addresses-Coverity: ("Uninitialized scalar variable") Fixes:2a34076070("f2fs: call f2fs_balance_fs only when node was changed") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> 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.