IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
When an rbd device is first getting mapped, its device registration
is protected the control mutex. There is no need to do that though,
because the device has already been assigned an id that's guaranteed
to be unique.
An unmap of an rbd device won't proceed if the device has a non-zero
open count or is already being unmapped. So there's no need to hold
the control mutex in that case either.
Finally, an rbd device can't be opened if it is being removed, and
it won't go away if there is a non-zero open count. So here too
there's no need to hold the control mutex while getting or putting a
reference to an rbd device's Linux device structure.
Drop the mutex calls in these cases.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
1ba0f1e797