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Before this patch, there was a flag in the con structure that was used to determine whether or not a connect was needed. The bit was set here and there, and cleared here and there, so it left some race conditions: the bit was set, work was queued, then the worker cleared the bit, allowing someone else to set it while the worker ran. For the most part, this worked okay, but we got into trouble if connections were lost and it needed to reconnect. This patch eliminates the flag in favor of simply checking if we actually have a sock pointer while protected by the mutex. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Reviewed-by: Tadashi Miyauchi <miyauchi@toshiba-tops.co.jp> Signed-off-by: David Teigland <teigland@redhat.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.