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54fa0ba406
Fix the passing of printk output back to the mconsole client. The existing code was somewhat confused, accumulating output in a buffer, but writing it out entirely whenever a new chunk was added. This is fixed. The earlier include cleanups caused linux/sysrq.h to not be included - this is fixed by adding the include back, under CONFIG_MAGIC_SYSRQ. CONFIG_MAGIC_SYSRQ is also defaulted to on in defconfig. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>