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896831f590
Make the frames the aoe driver uses to track the relationship between bios and packets more flexible and detached, so that they can be passed to an "aoe_ktio" thread for completion of I/O. The frames are handled much like skbs, with a capped amount of preallocation so that real-world use cases are likely to run smoothly and degenerate gracefully even under memory pressure. Decoupling I/O completion from the receive path and serializing it in a process makes it easier to think about the correctness of the locking in the driver, especially in the case of a remote MAC address becoming unusable. [dan.carpenter@oracle.com: cleanup an allocation a bit] Signed-off-by: Ed Cashin <ecashin@coraid.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>