diff options
author | Jason Wang <[email protected]> | 2022-03-29 12:21:07 +0800 |
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committer | Michael S. Tsirkin <[email protected]> | 2022-03-30 04:18:14 -0400 |
commit | 55ebf0d60e3cc6c9e8593399e185842c00e12f36 (patch) | |
tree | 247b49c2514822cdf5debac17e9d362b3dc4ff07 /scripts/gdb/linux | |
parent | c18c86808b78c4c2dc69f27f37c57abab14ee387 (diff) |
vdpa: mlx5: prevent cvq work from hogging CPU
A userspace triggerable infinite loop could happen in
mlx5_cvq_kick_handler() if userspace keeps sending a huge amount of
cvq requests.
Fixing this by introducing a quota and re-queue the work if we're out
of the budget (currently the implicit budget is one) . While at it,
using a per device work struct to avoid on demand memory allocation
for cvq.
Fixes: 5262912ef3cfc ("vdpa/mlx5: Add support for control VQ and MAC setting")
Signed-off-by: Jason Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Eli Cohen <[email protected]>
Diffstat (limited to 'scripts/gdb/linux')
0 files changed, 0 insertions, 0 deletions