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iscsi tcp will first send out data, then calculate and send data digest. If we don't have BDI_CAP_STABLE_WRITES, the page cache will be written in spite of the on going writeback. Consequently, wrong digest will be got and sent to target. To fix this, set BDI_CAP_STABLE_WRITES when data digest is enabled in iscsi_tcp .slave_configure callback. Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Acked-by: Chris Leech <cleech@redhat.com> Acked-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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.