aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi
diff options
context:
space:
mode:
authorWanlong Gao <gaowanlong@cn.fujitsu.com>2011-09-21 10:22:10 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-03 11:40:42 -0700
commite37143e6522a978b62ed4142741236af1f381d1d (patch)
tree6bd5a13f4143ea704465aba4ca25c1dd823b8a58 /drivers/scsi
parent10cabb78baa285840e10ab1911033e924ff29b94 (diff)
downloadkernel_samsung_crespo-e37143e6522a978b62ed4142741236af1f381d1d.zip
kernel_samsung_crespo-e37143e6522a978b62ed4142741236af1f381d1d.tar.gz
kernel_samsung_crespo-e37143e6522a978b62ed4142741236af1f381d1d.tar.bz2
blk-cgroup: be able to remove the record of unplugged device
commit d11bb4462c4cc6ddd45c6927c617ad79fa6fb8fc upstream. The bug is we're not able to remove the device from blkio cgroup's per-device control files if it gets unplugged. To reproduce the bug: # mount -t cgroup -o blkio xxx /cgroup # cd /cgroup # echo "8:0 1000" > blkio.throttle.read_bps_device # unplug the device # cat blkio.throttle.read_bps_device 8:0 1000 # echo "8:0 0" > blkio.throttle.read_bps_device -bash: echo: write error: No such device After patching, the device removal will succeed. Thanks for the comments of Paul, Zefan, and Vivek. Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Paul Menage <paul@paulmenage.org> Acked-by: Vivek Goyal <vgoyal@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/scsi')
0 files changed, 0 insertions, 0 deletions