We currently have a special_file() check in the checkpoint code which considers all special files as uncheckpointable.
Now that we have the f_op and a generic function, use that to override these simple devices and make them OK to checkpoint. Signed-off-by: Dave Hansen <[email protected]> --- linux-2.6.git-dave/drivers/char/mem.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN drivers/char/mem.c~make-dev-null-work drivers/char/mem.c --- linux-2.6.git/drivers/char/mem.c~make-dev-null-work 2009-02-27 12:07:39.000000000 -0800 +++ linux-2.6.git-dave/drivers/char/mem.c 2009-02-27 12:07:39.000000000 -0800 @@ -27,6 +27,7 @@ #include <linux/splice.h> #include <linux/pfn.h> #include <linux/smp_lock.h> +#include <linux/checkpoint.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -824,6 +825,7 @@ static const struct file_operations null .read = read_null, .write = write_null, .splice_write = splice_write_null, + .checkpoint = generic_file_checkpoint, }; #ifdef CONFIG_DEVPORT @@ -840,6 +842,7 @@ static const struct file_operations zero .read = read_zero, .write = write_zero, .mmap = mmap_zero, + .checkpoint = generic_file_checkpoint, }; /* _ _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
