user/sven/linux.git/drivers/md/dm-zero.c, branch ipvs/cleanups

dm: consolidate target deregistration error handling

2009-01-06T03:04:58Z

Change dm_unregister_target to return void and use BUG() for error reporting. dm_unregister_target can only fail because of programming bug in the target driver. It can't fail because of user's behavior or disk errors. This patch changes unregister_target to return void and use BUG if someone tries to unregister non-registered target or unregister target that is in use. This patch removes code duplication (testing of error codes in all dm targets) and reports bugs in just one place, in dm_unregister_target. In some target drivers, these return codes were ignored, which could lead to a situation where bugs could be missed. Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon

dm: remove dm header from targets

2008-10-21T16:44:59Z

Change #include "dm.h" to #include in all targets. Targets should not need direct access to internal DM structures. Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon

Drop 'size' argument from bio_endio and bi_end_io

2007-10-10T07:25:57Z

As bi_end_io is only called once when the reqeust is complete, the 'size' argument is now redundant. Remove it. Now there is no need for bio_endio to subtract the size completed from bi_size. So don't do that either. While we are at it, change bi_end_io to return void. Signed-off-by: Neil Brown Signed-off-by: Jens Axboe

[PATCH] dm: map and endio symbolic return codes

2006-12-08T16:29:09Z

Update existing targets to use the new symbols for return values from target map and end_io functions. There is no effect on behaviour. Test results: Done build test without errors. Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Alasdair G Kergon Cc: dm-devel@redhat.com Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] dm: improve error message consistency

2006-06-26T16:58:36Z

Tidy device-mapper error messages to include context information automatically. Signed-off-by: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] device-mapper: Some missing statics

2005-05-05T23:36:46Z

This patch makes some needlessly global code static. Signed-Off-By: Alasdair G Kergon Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] add local bio pool support and modify dm

2005-03-08T01:53:24Z

I've had this patch reviewed by Jens, and incorporated his recommended fixes. The patch adds new interfaces to bio.c that support the creation of local bio and bvec pools. This is important for layered drivers that need to allocate new bio and bvec structures in response to bio's submitted to it from higher up. The layered drivers can allocate local pools of bio structures to preclude deadlock under global bio pool exhaustion. The device mapper source files have been modified to remove duplicate bio code, and to use the new interfaces to create local bio pools. From: Dave Olien Change bio_clone() to use the global bio_set pool instead of the bio_set pool associated with the bio argument. This is because raid5 and raid6 bio's are not allocated from a bio_set and have no bio_set associated with them. This patch along with the patch Linux just accepted allows raid5 and raid6 to function. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Device-mapper: dm-zero flushing fix

2004-06-18T01:04:10Z

Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] dm: dm-zero version

2004-06-18T01:03:59Z

Add missing dm-zero version number. From: Alasdair Kergon Signed-off-by: Kevin Corry Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] Device-mapper: dm-zero

2004-06-18T01:03:48Z

Add dm-zero target Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds