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| author | Andrea Parri (Microsoft) <parri.andrea@gmail.com> | 2020-04-06 03:15:14 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2020-05-20 12:13:19 +0300 |
| commit | 7769e18c201aa88eade5556faf9da7f2bc15bb8a (patch) | |
| tree | c851e261d39bc420dd9d6e7920ccefe02c68e2c4 /include/linux/hyperv.h | |
| parent | 7527810573436f00e582d3d5ef2eb3c027c98d7d (diff) | |
| download | linux-7769e18c201aa88eade5556faf9da7f2bc15bb8a.tar.xz | |
scsi: storvsc: Re-init stor_chns when a channel interrupt is re-assigned
For each storvsc_device, storvsc keeps track of the channel target CPUs
associated to the device (alloced_cpus) and it uses this information to
fill a "cache" (stor_chns) mapping CPU->channel according to a certain
heuristic. Update the alloced_cpus mask and the stor_chns array when a
channel of the storvsc device is re-assigned to a different CPU.
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>
Link: https://lore.kernel.org/r/20200406001514.19876-12-parri.andrea@gmail.com
Reviewed-by; Long Li <longli@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
[ wei: fix a small issue reported by kbuild test robot <lkp@intel.com> ]
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index b85d7580f2c1..cd64ab7bb3b7 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -773,6 +773,9 @@ struct vmbus_channel { void (*onchannel_callback)(void *context); void *channel_callback_context; + void (*change_target_cpu_callback)(struct vmbus_channel *channel, + u32 old, u32 new); + /* * Synchronize channel scheduling and channel removal; see the inline * comments in vmbus_chan_sched() and vmbus_reset_channel_cb(). |