- drivers/block/blkpg.c | 39 +++++++++++++++++++++++++++++++++++++++
- drivers/block/loop.c | 3 +++
- drivers/ide/ide-disk.c | 4 ++++
- 3 files changed, 46 insertions(+)
-
---- linux-2.4.20/drivers/block/blkpg.c~dev_read_only_hp 2003-04-09 15:14:54.000000000 -0600
-+++ linux-2.4.20-braam/drivers/block/blkpg.c 2003-04-09 15:37:02.000000000 -0600
-@@ -296,3 +296,42 @@ int blk_ioctl(kdev_t dev, unsigned int c
+Index: linux-2.4.20-8/drivers/block/blkpg.c
+===================================================================
+--- linux-2.4.20-8.orig/drivers/block/blkpg.c 2002-08-03 08:39:43.000000000 +0800
++++ linux-2.4.20-8/drivers/block/blkpg.c 2003-12-08 15:50:20.000000000 +0800
+@@ -296,3 +296,42 @@
}
EXPORT_SYMBOL(blk_ioctl);
+EXPORT_SYMBOL(dev_clear_rdonly);
+
+
---- linux-2.4.20/drivers/block/loop.c~dev_read_only_hp 2003-04-09 15:14:54.000000000 -0600
-+++ linux-2.4.20-braam/drivers/block/loop.c 2003-04-09 15:37:02.000000000 -0600
-@@ -474,6 +474,9 @@ static int loop_make_request(request_que
- spin_unlock_irq(&lo->lo_lock);
-
- if (rw == WRITE) {
-+ if (dev_check_rdonly(rbh->b_rdev))
-+ goto err;
-+
- if (lo->lo_flags & LO_FLAGS_READ_ONLY)
- goto err;
- } else if (rw == READA) {
---- linux-2.4.20/drivers/ide/ide-disk.c~dev_read_only_hp 2003-04-09 15:14:54.000000000 -0600
-+++ linux-2.4.20-braam/drivers/ide/ide-disk.c 2003-04-09 15:37:02.000000000 -0600
-@@ -558,6 +558,10 @@ static ide_startstop_t lba_48_rw_disk (i
- */
- static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsigned long block)
- {
-+ if (rq->cmd == WRITE && dev_check_rdonly(rq->rq_dev)) {
-+ ide_end_request(1, HWGROUP(drive));
-+ return ide_stopped;
-+ }
- if (IDE_CONTROL_REG)
- OUT_BYTE(drive->ctl,IDE_CONTROL_REG);
+Index: linux-2.4.20-8/drivers/block/ll_rw_blk.c
+===================================================================
+--- linux-2.4.20-8.orig/drivers/block/ll_rw_blk.c 2003-12-08 15:47:50.000000000 +0800
++++ linux-2.4.20-8/drivers/block/ll_rw_blk.c 2003-12-08 15:51:17.000000000 +0800
+@@ -1164,6 +1164,10 @@
+ buffer_IO_error(bh);
+ break;
+ }
++ if ((dev_check_rdonly(bh->b_rdev))&&(rw & WRITE)) {
++ bh->b_end_io(bh, 0);
++ break;
++ }
+ } while (q->make_request_fn(q, rw, bh));
+ }
-
-_