git add include/linux/printbuf.h
cp $(LINUX_DIR)/lib/printbuf.c linux/
git add linux/printbuf.c
+ cp $(LINUX_DIR)/lib/math/mean_and_variance.c linux/
+ git add linux/mean_and_variance.c
+ cp $(LINUX_DIR)/include/linux/mean_and_variance.h include/linux/
+ git add include/linux/mean_and_variance.h
+ cp $(LINUX_DIR)/lib/math/int_sqrt.c linux/
+ git add linux/int_sqrt.c
cp $(LINUX_DIR)/scripts/Makefile.compiler ./
git add Makefile.compiler
$(RM) libbcachefs/*.mod.c