dm raid1: hold all write bios when leg fails

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Hold all write bios when leg fails and errors are handled

When using a userspace daemon such as dmeventd to handle errors, we must
delay completing  bios until it has done its job.
This patch prevents the following race:
  - primary leg fails
  - write "1" fail, the write is held, secondary leg is set default
  - write "2" goes straight to the secondary leg

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Takahiro Yasui <tyasui@redhat.com>
Tested-by: Takahiro Yasui <tyasui@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

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Mikulas Patocka 2009-12-10 23:52:06 +00:00 • committed by Alasdair G Kergon

parent 60f355ead3

commit 929be8fcb4

1 changed files with 10 additions and 2 deletions

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drivers/md/dm-raid1.c

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