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Without FADVISE_KEEP_SIZE_BIT, we will try to recover file size according to last non-hole block, so in fallocate(), we must set FADVISE_KEEP_SIZE_BIT flag once we have preallocated block cross EOF, instead of when all preallocation is success. Otherwise, file size will be incorrect due to lack of this flag. Simple testcase to reproduce this: 1. echo 2 > /sys/fs/f2fs/<device>/inject_type 2. echo 10 > /sys/fs/f2fs/<device>/inject_rate 3. run tests/generic/392 4. disable fault injection 5. do remount Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.