block: export blk_verify_command for SG v4
blk_fill_sghdr_rq doesn't work for SG v4 so verify_command needed to
be exported.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index daded70..db53b2c 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -112,7 +112,7 @@
#define safe_for_read(cmd) [cmd] = CMD_READ_SAFE
#define safe_for_write(cmd) [cmd] = CMD_WRITE_SAFE
-static int verify_command(unsigned char *cmd, int has_write_perm)
+int blk_verify_command(unsigned char *cmd, int has_write_perm)
{
static unsigned char cmd_type[256] = {
@@ -212,6 +212,7 @@
/* Otherwise fail it with an "Operation not permitted" */
return -EPERM;
}
+EXPORT_SYMBOL_GPL(blk_verify_command);
int blk_fill_sghdr_rq(request_queue_t *q, struct request *rq,
struct sg_io_hdr *hdr, int has_write_perm)
@@ -220,7 +221,7 @@
if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len))
return -EFAULT;
- if (verify_command(rq->cmd, has_write_perm))
+ if (blk_verify_command(rq->cmd, has_write_perm))
return -EPERM;
/*
@@ -457,7 +458,7 @@
if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
goto error;
- err = verify_command(rq->cmd, file->f_mode & FMODE_WRITE);
+ err = blk_verify_command(rq->cmd, file->f_mode & FMODE_WRITE);
if (err)
goto error;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 53002d4..f6bc0d0 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -692,6 +692,7 @@
extern int blk_unmap_sghdr_rq(struct request *, struct sg_io_hdr *);
extern int blk_complete_sghdr_rq(struct request *, struct sg_io_hdr *,
struct bio *);
+extern int blk_verify_command(unsigned char *, int);
static inline request_queue_t *bdev_get_queue(struct block_device *bdev)
{