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Date: Mon, 16 Mar 2009 11:29:00 +0900
From: Tejun Heo <tj@...nel.org>
To: axboe@...nel.dk, linux-kernel@...r.kernel.org, bzolnier@...il.com
Cc: Tejun Heo <tj@...nel.org>,
Jörg Dorchain <joerg@...chain.net>,
Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 17/17] block: clean up unnecessary stuff from block drivers
Impact: cleanup
rq_data_dir() can only be READ or WRITE and rq->sector and nr_sectors
are always automatically updated after partial request completion.
Don't worry about rq_data_dir() not being either READ or WRITE or
manually update sector and nr_sectors.
Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Jörg Dorchain <joerg@...chain.net>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
---
drivers/block/amiflop.c | 7 -------
drivers/block/ataflop.c | 4 ----
drivers/block/xd.c | 9 ++-------
3 files changed, 2 insertions(+), 18 deletions(-)
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 163750e..72ee010 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1371,11 +1371,6 @@ static void redo_fd_request(void)
"0x%08lx\n", track, sector, data);
#endif
- if ((rq_data_dir(CURRENT) != READ) && (rq_data_dir(CURRENT) != WRITE)) {
- printk(KERN_WARNING "do_fd_request: unknown command\n");
- __blk_end_request_all(CURRENT, -EIO);
- goto repeat;
- }
if (get_track(drive, track) == -1) {
__blk_end_request_all(CURRENT, -EIO);
goto repeat;
@@ -1407,8 +1402,6 @@ static void redo_fd_request(void)
break;
}
}
- CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
- CURRENT->sector += CURRENT->current_nr_sectors;
__blk_end_request_all(CURRENT, 0);
goto repeat;
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index c9844f0..d19c9d6 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -732,8 +732,6 @@ static void do_fd_action( int drive )
}
else {
/* all sectors finished */
- CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
- CURRENT->sector += CURRENT->current_nr_sectors;
__blk_end_request_all(CURRENT, 0);
redo_fd_request();
return;
@@ -1139,8 +1137,6 @@ static void fd_rwsec_done1(int status)
}
else {
/* all sectors finished */
- CURRENT->nr_sectors -= CURRENT->current_nr_sectors;
- CURRENT->sector += CURRENT->current_nr_sectors;
__blk_end_request_all(CURRENT, 0);
redo_fd_request();
}
diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index 291ddc3..85d8ef3 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -308,7 +308,6 @@ static void do_xd_request (struct request_queue * q)
while ((req = elv_next_request(q)) != NULL) {
unsigned block = req->sector;
unsigned count = req->nr_sectors;
- int rw = rq_data_dir(req);
XD_INFO *disk = req->rq_disk->private_data;
int res = 0;
int retry;
@@ -321,13 +320,9 @@ static void do_xd_request (struct request_queue * q)
__blk_end_request_all(req, -EIO);
continue;
}
- if (rw != READ && rw != WRITE) {
- printk("do_xd_request: unknown request\n");
- __blk_end_request_all(req, -EIO);
- continue;
- }
for (retry = 0; (retry < XD_RETRIES) && !res; retry++)
- res = xd_readwrite(rw, disk, req->buffer, block, count);
+ res = xd_readwrite(rq_data_dir(req), disk, req->buffer,
+ block, count);
/* wrap up, 0 = success, -errno = fail */
__blk_end_request_all(req, res);
}
--
1.6.0.2
--
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