Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb
Commit: 436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb
Parent: 671756162cfb0b3ccbb6a0047baa3010885561a2
Author: Christian Borntraeger <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 4 16:09:03 2007 +0100
Committer: Martin Schwidefsky <[EMAIL PROTECTED]>
CommitDate: Tue Dec 4 16:09:57 2007 +0100
[S390] dcssblk: prevent early access without own make_request function
When loading a dcss segment with the dcssblk driver, sometimes the
following kind of message appears:
bio too big device dcssblk0 (8 > 0)
Buffer I/O error on device dcssblk0, logical block 172016
..
The fix is to move the disk registration after setting the
make_request function, to avoid calls into generic_make_request
for dcssblock without having the make_request function set up
properly.
Cc: Gerald Schaefer <[EMAIL PROTECTED]>
Signed-off-by: Christian Borntraeger <[EMAIL PROTECTED]>
Signed-off-by: Martin Schwidefsky <[EMAIL PROTECTED]>
---
drivers/s390/block/dcssblk.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 5e083d1..15a5789 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -472,11 +472,11 @@ dcssblk_add_store(struct device *dev, struct
device_attribute *attr, const char
if (rc)
goto unregister_dev;
- add_disk(dev_info->gd);
-
blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request);
blk_queue_hardsect_size(dev_info->dcssblk_queue, 4096);
+ add_disk(dev_info->gd);
+
switch (dev_info->segment_type) {
case SEG_TYPE_SR:
case SEG_TYPE_ER:
-
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