| commit | bc1bf16d7defec622e3d9a13b841d079e73063eb | |
| author | Tyrel Datwyler <tyreld@linux.vnet.ibm.com> | |
| Wed, 20 Mar 2019 18:41:50 +0000 (20 13:41 -0500) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 27 Mar 2019 05:17:54 +0000 (27 14:17 +0900) | ||
| tree | 14bcd2750243e07bd1dc09611e4e4518b40d1802 | treesnapshot (tar.gz zip) |
| parent | e109bf21f4c61a869237a107249687d3c0f7e9ea | commitdiff |
scsi: ibmvscsi: Protect ibmvscsi_head from concurrent modificaiton
commit 7205981e045e752ccf96cf6ddd703a98c59d4339 upstream.
For each ibmvscsi host created during a probe or destroyed during a remove
we either add or remove that host to/from the global ibmvscsi_head
list. This runs the risk of concurrent modification.
This patch adds a simple spinlock around the list modification calls to
prevent concurrent updates as is done similarly in the ibmvfc driver and
ipr driver.
Fixes: 32d6e4b6e4ea ("scsi: ibmvscsi: add vscsi hosts to global list_head")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 7205981e045e752ccf96cf6ddd703a98c59d4339 upstream.
For each ibmvscsi host created during a probe or destroyed during a remove
we either add or remove that host to/from the global ibmvscsi_head
list. This runs the risk of concurrent modification.
This patch adds a simple spinlock around the list modification calls to
prevent concurrent updates as is done similarly in the ibmvfc driver and
ipr driver.
Fixes: 32d6e4b6e4ea ("scsi: ibmvscsi: add vscsi hosts to global list_head")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/scsi/ibmvscsi/ibmvscsi.c | diffblobblamehistory |