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| author |   Cheng Renquan <crquan@gmail.com> | 2009-04-02 19:55:28 +0100 |
|---|---|---|
| committer |   Alasdair G Kergon <agk@redhat.com> | 2009-04-02 19:55:28 +0100 |
| commit | 45194e4f89fbdd97a2b7d2698c05f0b00c19e820 (patch) | |
| tree | 70d35747228b84c1d7b7d76c5e18f72b16f412a3 /include/linux/device-mapper.h | |
| parent | dm table: fix upgrade mode race (diff) | |
| download | linux-dev-45194e4f89fbdd97a2b7d2698c05f0b00c19e820.tar.xz linux-dev-45194e4f89fbdd97a2b7d2698c05f0b00c19e820.zip | |
dm target: remove struct tt_internal
The tt_internal is really just a list_head to manage registered target_type
in a double linked list,
Here embed the list_head into target_type directly,
1. to avoid kmalloc/kfree;
2. then tt_internal is really unneeded;
Cc: stable@kernel.org
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Reviewed-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 8209e08969f9..66ec05a57955 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -139,6 +139,9 @@ struct target_type { dm_ioctl_fn ioctl; dm_merge_fn merge; dm_busy_fn busy; + + /* For internal device-mapper use. */ + struct list_head list; }; struct io_restrictions { |