tree 3471ea20b7fb4c4a9bbd7cfb3cc952344b5501d6
parent d34c87e4ba3d1857f80a65179e81a18705a31656
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1209455679 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1209473335 +0200

block: add large command support

This patch changes rq->cmd from the static array to a pointer to
support large commands.

We rarely handle large commands. So for optimization, a struct request
still has a static array for a command. rq_init sets rq->cmd pointer
to the static array.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>