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| author | Jonathan Brassow <jbrassow@redhat.com> | 2013-03-07 16:22:01 -0600 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2013-03-20 13:16:57 +1100 |
| commit | e3620a3ad52609f64a2402e4b59300afb4b83b77 (patch) | |
| tree | c707eed6157a41e7f913c40eb1db1341473dfca7 /firmware/bnx2x | |
| parent | ce7d363aaf1e28be8406a2976220944ca487e8ca (diff) | |
| download | talos-obmc-linux-e3620a3ad52609f64a2402e4b59300afb4b83b77.tar.gz talos-obmc-linux-e3620a3ad52609f64a2402e4b59300afb4b83b77.zip | |
MD RAID5: Avoid accessing gendisk or queue structs when not available
MD RAID5: Fix kernel oops when RAID4/5/6 is used via device-mapper
Commit a9add5d (v3.8-rc1) added blktrace calls to the RAID4/5/6 driver.
However, when device-mapper is used to create RAID4/5/6 arrays, the
mddev->gendisk and mddev->queue fields are not setup. Therefore, calling
things like trace_block_bio_remap will cause a kernel oops. This patch
conditionalizes those calls on whether the proper fields exist to make
the calls. (Device-mapper will call trace_block_bio_remap on its own.)
This patch is suitable for the 3.8.y stable kernel.
Cc: stable@vger.kernel.org (v3.8+)
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'firmware/bnx2x')
0 files changed, 0 insertions, 0 deletions
