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| author | K. Y. Srinivasan <kys@microsoft.com> | 2017-09-29 21:09:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-04 11:25:09 +0200 |
| commit | 192b2d78722ffea188e5ec6ae5d55010dce05a4b (patch) | |
| tree | f48582ce3f3c880fa6c57452abe029d66bad04ff /include/linux/hyperv.h | |
| parent | 688cb67839e852740d22cf763e5eafb27d5a6e53 (diff) | |
| download | lwn-192b2d78722ffea188e5ec6ae5d55010dce05a4b.tar.gz lwn-192b2d78722ffea188e5ec6ae5d55010dce05a4b.zip | |
Drivers: hv: vmbus: Fix bugs in rescind handling
This patch addresses the following bugs in the current rescind handling code:
1. Fixes a race condition where we may be invoking hv_process_channel_removal()
on an already freed channel.
2. Prevents indefinite wait when rescinding sub-channels by correctly setting
the probe_complete state.
I would like to thank Dexuan for patiently reviewing earlier versions of this
patch and identifying many of the issues fixed here.
Greg, please apply this to 4.14-final.
Fixes: '54a66265d675 ("Drivers: hv: vmbus: Fix rescind handling")'
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Cc: stable@vger.kernel.org # (4.13 and above)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index c458d7b7ad19..6431087816ba 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -1403,7 +1403,7 @@ extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *icmsghdrp, u8 *buf, const int *srv_version, int srv_vercnt, int *nego_fw_version, int *nego_srv_version); -void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid); +void hv_process_channel_removal(u32 relid); void vmbus_setevent(struct vmbus_channel *channel); /* |