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cde81d99af
conn_try_disconnect() could potentialy hit the BUG_ON() in _conn_set_state() where it iterates over _drbd_set_state() and "asserts" via BUG_ON() that the latter was successful. If the STATE_SENT bit was not yet visible to conn_is_valid_transition() early in _conn_request_state(), but became visible before conn_set_state() later in that call path, we could hit the BUG_ON() after _drbd_set_state(), because it returned SS_IN_TRANSIENT_STATE. To avoid that race, we better protect set_bit(SENT_STATE) with the spinlock. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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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.