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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-04-02 13:43:26 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-03 15:29:26 +0200 |
| commit | e2494e1b42ebac402324105d57646489d19e2b01 (patch) | |
| tree | bd8d0beac5d8b8a7e6ff209c265b015a56fed1fd /block/blk-core.c | |
| parent | 7635b03adf3d7b84da7649b81efa91e6ebf11b85 (diff) | |
| download | lwn-e2494e1b42ebac402324105d57646489d19e2b01.tar.gz lwn-e2494e1b42ebac402324105d57646489d19e2b01.zip | |
blktrace: fix pdu_len when tracing packet command requests
Impact: output all of packet commands - not just the first 4 / 8 bytes
Since commit d7e3c3249ef23b4617393c69fe464765b4ff1645 ("block: add
large command support"), struct request->cmd has been changed from
unsinged char cmd[BLK_MAX_CDB] to unsigned char *cmd.
v1 -> v2: by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
- make sure rq->cmd_len is always intialized, and then we can use
rq->cmd_len instead of BLK_MAX_CDB.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
LKML-Reference: <49D4507E.2060602@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 29bcfac6c688..859879d0a0bf 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -132,6 +132,7 @@ void blk_rq_init(struct request_queue *q, struct request *rq) INIT_HLIST_NODE(&rq->hash); RB_CLEAR_NODE(&rq->rb_node); rq->cmd = rq->__cmd; + rq->cmd_len = BLK_MAX_CDB; rq->tag = -1; rq->ref_count = 1; } |