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drivers/hv: introduce vmbus_channel_set_cpu()

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The core functionality in target_cpu_store() is also needed in a
subsequent patch for automatically changing the CPU when taking
a CPU offline. As such, factor out the body of target_cpu_store()
into new function vmbus_channel_set_cpu() that can also be used
elsewhere.

No functional change is intended.

Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Michael Kelley <mhklinux@outlook.com>
Cc: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/20250117203309.192072-2-hamzamahfooz@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250117203309.192072-2-hamzamahfooz@linux.microsoft.com>
This commit is contained in:
Hamza Mahfooz
2025-01-17 15:33:07 -05:00
committed by Wei Liu
parent 7c0db8a4f5
commit 5e4304ff8c
2 changed files with 32 additions and 21 deletions
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include/linux/hyperv.h
+1
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@@ -1661,6 +1661,7 @@ int vmbus_send_tl_connect_request(const guid_t *shv_guest_servie_id,
const guid_t *shv_host_servie_id);
int vmbus_send_modifychannel(struct vmbus_channel *channel, u32 target_vp);
void vmbus_set_event(struct vmbus_channel *channel);
int vmbus_channel_set_cpu(struct vmbus_channel *channel, u32 target_cpu);
/* Get the start of the ring buffer. */
static inline void *