Commit graph

54 commits

Author SHA1 Message Date
Heiko Carstens
278bc68c4b [S390] vmur: use DECLARE_COMPLETION_ONSTACK to keep lockdep happy
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
000000000ff9fb08 000000000ff9fb18 0000000000000002 0000000000000000
000000000ff9fbb8 000000000ff9fb30 000000000ff9fb30 0000000000104198
0000000000000000 0000000000000002 0000000000000000 0000000000000000
000000000ff9fb18 000000000000000c 000000000ff9fb18 000000000ff9fb88
0000000000448db0 0000000000104198 000000000ff9fb18 000000000ff9fb68
Call Trace:
([<00000000001040ea>] show_trace+0x12e/0x170)
 [<00000000001041f2>] show_stack+0xc6/0xf8
 [<0000000000104252>] dump_stack+0x2e/0x3c
 [<0000000000155f9c>] __lock_acquire+0x460/0x1048
 [<0000000000156c16>] lock_acquire+0x92/0xb8
 [<000000000043f406>] _spin_lock_irqsave+0x62/0x80
 [<0000000000121382>] complete+0x32/0x78
 [<000000001082b468>] ur_int_handler+0xc8/0xec [vmur]
 [<0000000000313216>] ccw_device_call_handler+0xae/0xd4
 [<0000000000310da4>] ccw_device_irq+0x5c/0x130
 [<0000000000312c84>] io_subchannel_irq+0x8c/0x118
 [<000000000030a88c>] do_IRQ+0x16c/0x194
 [<0000000000111a62>] io_no_vtime+0x16/0x1c
 [<0000000080001394>] 0x80001394

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-08-10 14:32:37 +02:00
Michael Holzheu
1eade380c5 [S390] vmur: allocate single record buffers instead of one big data buffer
vmur allocates one contiguous kernel buffer to copy user data when creating
ccw programs for punch or printer. If big block sizes are used, under memory
pressure it can happen, that we do not get memory in one chunk. Now we
allocate memory for each single record to avoid high order allocations.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-08-10 14:32:37 +02:00
Frank Munzert
2b3d8c9e06 [S390] vmur: fix diag14_read.
Record length of spool file must be only stored in 1st SPLINK record

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-07-27 12:29:19 +02:00
Frank Munzert
810cb5b32d [S390] z/VM unit record device driver
z/VM Unit record character device driver to access VM reader, punch,
and printer.

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-07-17 13:36:19 +02:00