Synchronizes hotplug remove with the freeing of the port.
This ensures we have freed all the memory associated with
this port and are not leaking memory.
Signed-off-by: Brian King <email address hidden>
Link: https://<email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
(cherry picked from commit 28d49f8cbe9c7966f91ee1b5ec2f997f6e55bf9f)
Signed-off-by: Frank Heimes <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Cengiz Can <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
When hotplug removing an hvcs device, we need to ensure the
hangup processing is done prior to exiting the remove function,
so use tty_vhangup to do the hangup processing directly
rather than using tty_hangup which simply schedules the hangup
work for later execution.
Signed-off-by: Brian King <email address hidden>
Link: https://<email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
(cherry picked from commit d432228bc7b1b3f0ed06510278ff5a77b3749fe6)
Signed-off-by: Frank Heimes <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Cengiz Can <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
Rather than manually creating attributes for the hvcs driver,
let the driver core do this for us. This also fixes some hotplug
remove issues and ensures that cleanup of these attributes
is done in the right order.
Signed-off-by: Brian King <email address hidden>
Link: https://<email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
(cherry picked from commit 503a90dd619d52dcac2cc68bd742aa914c7cd47a)
Signed-off-by: Frank Heimes <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Cengiz Can <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
Use the dev_groups functionality to manage the attribute groups
for hvcs devices. This simplifies the code and also eliminates
errors coming from kernfs when attempting to remove a console
device that is in use.
Signed-off-by: Brian King <email address hidden>
Link: https://<email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
(cherry picked from commit 760aa5e81f33e0da82512c4288489739a6d1c556)
Signed-off-by: Frank Heimes <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Cengiz Can <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
The hvcs driver only ever gets two references to the port. One
at initialization time, and one at install time. Remove the code
that was trying to do multiple port puts for each open, which
would result in more puts than gets.
Signed-off-by: Brian King <email address hidden>
Link: https://<email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
(cherry picked from commit 6a9a733edd46732e906d976dc21a42dd361e53cc)
Signed-off-by: Frank Heimes <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Cengiz Can <email address hidden>
Signed-off-by: Stefan Bader <email address hidden>
Presently stage2_apply_range() works on a batch of memory addressed by a
stage 2 root table entry for the VM. Depending on the IPA limit of the
VM and PAGE_SIZE of the host, this could address a massive range of
memory. Some examples:
4 level, 4K paging -> 512 GB batch size
3 level, 64K paging -> 4TB batch size
Unsurprisingly, working on such a large range of memory can lead to soft
lockups. When running dirty_log_perf_test:
Use the largest supported block mapping for the configured page size as
the batch granularity. In so doing the walker is guaranteed to visit a
leaf only once.
Work out the minimum page table level where KVM supports block mappings
at compile time. While at it, rewrite the comment around supported block
mappings to directly describe what KVM supports instead of phrasing in
terms of what it does not.
Dropping the in-tree abi checks forgot to adjust the final-checks file.
This was done in Mantic but there the file was relocated. Following up
with similar changes in Jammy.
Fixes: 476bafa0dcd4 "UBUNTU: [Packaging] Remove in-tree abi checks"
Signed-off-by: Stefan Bader <email address hidden>
