Once F2FS_IPU_FORCE policy is enabled in some cases: a) f2fs forces to use F2FS_IPU_FORCE in a small-sized volume b) user sets F2FS_IPU_FORCE policy via sysfs Then we may fail to defragment file due to IPU policy check, it doesn't make sense, let's introduce a new IPU policy to allow OPU during file defragmentation. In small-sized volume, let's enable F2FS_IPU_HONOR_OPU_WRITE policy by default. Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@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.
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