diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-01-02 17:25:34 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-01-02 13:11:06 -0800 |
| commit | ac40532ef0b8649e6f7f83859ea0de1c4ed08a19 (patch) | |
| tree | ca86d577fe7fe68ae28b7f7d020f86bc9fff5535 /drivers/scsi/scsi_lib.c | |
| parent | 158a962422e4a54dc256b6a9b9562f3d30d34d9c (diff) | |
scsi: revert "[SCSI] Get rid of scsi_cmnd->done"
This reverts commit 6f5391c283d7fdcf24bf40786ea79061919d1e1d ("[SCSI]
Get rid of scsi_cmnd->done") that was supposed to be a cleanup commit,
but apparently it causes regressions:
Bug 9370 - v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device
http://bugzilla.kernel.org/show_bug.cgi?id=9370
this patch should be reintroduced in a more split-up form to make
testing of it easier.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 0e81e4cf887..8df8267ce31 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1092,6 +1092,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes) } scsi_end_request(cmd, 0, this_count, !result); } +EXPORT_SYMBOL(scsi_io_completion); /* * Function: scsi_init_io() @@ -1170,6 +1171,18 @@ static struct scsi_cmnd *scsi_get_cmd_from_req(struct scsi_device *sdev, return cmd; } +static void scsi_blk_pc_done(struct scsi_cmnd *cmd) +{ + BUG_ON(!blk_pc_request(cmd->request)); + /* + * This will complete the whole command with uptodate=1 so + * as far as the block layer is concerned the command completed + * successfully. Since this is a REQ_BLOCK_PC command the + * caller should check the request's errors value + */ + scsi_io_completion(cmd, cmd->request_bufflen); +} + int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) { struct scsi_cmnd *cmd; @@ -1219,6 +1232,7 @@ int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req) cmd->transfersize = req->data_len; cmd->allowed = req->retries; cmd->timeout_per_command = req->timeout; + cmd->done = scsi_blk_pc_done; return BLKPREP_OK; } EXPORT_SYMBOL(scsi_setup_blk_pc_cmnd); |