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| author |   David Teigland <teigland@redhat.com> | 2006-06-26 00:27:33 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 09:58:36 -0700 |
| commit | c2ade42dd35466d90aa6fc7cc717f396e165492f (patch) | |
| tree | 245baeabfea43a3b2654adb962e776a877da0059 /include/linux/device-mapper.h | |
| parent | [PATCH] dm: add exports (diff) | |
| download | linux-dev-c2ade42dd35466d90aa6fc7cc717f396e165492f.tar.xz linux-dev-c2ade42dd35466d90aa6fc7cc717f396e165492f.zip | |
[PATCH] dm: create error table
Add a library function dm_create_error_table() to create a table that rejects
any I/O sent to a device with EIO.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 010c8c5eeb37..61103d2bc244 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -227,5 +227,11 @@ void dm_table_event(struct dm_table *t); */ int dm_swap_table(struct mapped_device *md, struct dm_table *t); +/* + * Prepare a table for a device that will error all I/O. + * To make it active, call dm_suspend(), dm_swap_table() then dm_resume(). + */ +int dm_create_error_table(struct dm_table **result, struct mapped_device *md); + #endif /* __KERNEL__ */ #endif /* _LINUX_DEVICE_MAPPER_H */ |