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| author |   Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2009-12-07 12:51:18 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 12:51:30 +0100 |
| commit | 390935acac21f3ea1a130bdca8eb9397cb293643 (patch) | |
| tree | dafe0c1ff5c5d6946a024c05e5eedaa2731eaf20 /drivers/s390/cio/cio.h | |
| parent | [S390] cio: introduce parent-initiated device move (diff) | |
| download | linux-dev-390935acac21f3ea1a130bdca8eb9397cb293643.tar.xz linux-dev-390935acac21f3ea1a130bdca8eb9397cb293643.zip | |
[S390] cio: introduce subchannel todos
Ensure that current and future users of sch->work do not overwrite
each other by introducing a single mechanism for delayed subchannel
work.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/cio.h')
| -rw-r--r-- | drivers/s390/cio/cio.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index 2e43558c704b..bf7f80f5a330 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -68,6 +68,11 @@ struct schib { __u8 mda[4]; /* model dependent area */ } __attribute__ ((packed,aligned(4))); +enum sch_todo { + SCH_TODO_NOTHING, + SCH_TODO_UNREG, +}; + /* subchannel data structure used by I/O subroutines */ struct subchannel { struct subchannel_id schid; @@ -95,7 +100,8 @@ struct subchannel { struct device dev; /* entry in device tree */ struct css_driver *driver; void *private; /* private per subchannel type data */ - struct work_struct work; + enum sch_todo todo; + struct work_struct todo_work; struct schib_config config; } __attribute__ ((aligned(8))); |