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[ Upstream commit 2aaea533bf063ed3b442df5fe5f6abfc538054c9 ] This patch covers sanity check logic on cluster w/ CONFIG_F2FS_CHECK_FS, otherwise, there will be performance regression while querying cluster mapping info. Callers of f2fs_is_compressed_cluster() only care about whether cluster is compressed or not, rather than # of valid blocks in compressed cluster, so, let's adjust f2fs_is_compressed_cluster()'s logic according to caller's requirement. Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Stable-dep-of: f785cec298c9 ("f2fs: compress: don't redirty sparse cluster during {,de}compress") 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.