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| author |   Kevin Barnett <kevin.barnett@microchip.com> | 2022-07-08 13:47:41 -0500 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2022-07-13 23:42:04 -0400 |
| commit | 6ce3cfb365ebb2b93ee547318c6a108e62c740a1 (patch) | |
| tree | caa33633e07e5377baa8174e1581c6add9669988 /tools/perf/util/include/linux/git:/ssh:/git@git.zx2c4.com | |
| parent | scsi: smartpqi: Fix DMA direction for RAID requests (diff) | |
| download | linux-dev-6ce3cfb365ebb2b93ee547318c6a108e62c740a1.tar.xz linux-dev-6ce3cfb365ebb2b93ee547318c6a108e62c740a1.zip | |
scsi: smartpqi: Fix RAID map race condition
Correct a rare stale RAID map access when performing AIO during a RAID
configuration change.
A race condition in the driver could cause it to access a stale RAID map
when a logical volume is reconfigured.
Modify the driver logic to invalidate a RAID map very early when a RAID
configuration change is detected and only switch to a new RAID map after
the driver detects that the RAID map has changed.
Link: https://lore.kernel.org/r/165730606128.177165.7671413443814750829.stgit@brunhilda
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/util/include/linux/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions