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| author | majianpeng <majianpeng@gmail.com> | 2012-07-03 12:11:54 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-16 09:04:25 -0700 |
| commit | 8d9369807370331cebf3e237b95ecce068af80f1 (patch) | |
| tree | 45d0c283ffd7f058e28a17d6b55e0a8a3d567502 /Documentation | |
| parent | 65c3f18b9032f7237fc74403ce3a92176eaebd8c (diff) | |
md/raid5: In ops_run_io, inc nr_pending before calling md_wait_for_blocked_rdev
commit 1850753d2e6d9ca7856581ca5d3cf09521e6a5d7 upstream.
In ops_run_io(), the call to md_wait_for_blocked_rdev will decrement
nr_pending so we lose the reference we hold on the rdev.
So atomic_inc it first to maintain the reference.
This bug was introduced by commit 73e92e51b7969ef5477d
md/raid5. Don't write to known bad block on doubtful devices.
which appeared in 3.0, so patch is suitable for stable kernels since
then.
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions