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RPC_TASK_NO_RETRANS_TIMEOUT is set when cl_noretranstimeo is set, which happens when RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT is set, which happens when NFS_CS_NO_RETRANS_TIMEOUT is set. This flag means "don't resend on a timeout, only resend if the connection gets broken for some reason". cl_discrtry is set when RPC_CLNT_CREATE_DISCRTRY is set, which happens when NFS_CS_DISCRTRY is set. This flag means "always disconnect before resending". NFS_CS_NO_RETRANS_TIMEOUT and NFS_CS_DISCRTRY are both only set in nfs4_init_client(), and it always sets both. So we will never have a situation where only one of the flags is set. So this code, which tests if timeout retransmits are allowed, and disconnection is required, will never run. So it makes sense to remove this code as it cannot be tested and could confuse people reading the code (like me). (alternately we could leave it there with a comment saying it is never actually used). Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> |
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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.