From: Coly Li colyli@suse.de
commit 5461999848e0462c14f306a62923d22de820a59c upstream.
In bch_cached_dev_files[] from driver/md/bcache/sysfs.c, sysfs_errors is incorrectly inserted in. The correct entry should be sysfs_io_errors.
This patch fixes the problem and now I/O errors of cached device can be read from /sys/block/bcache<N>/bcache/io_errors.
Fixes: c7b7bd07404c5 ("bcache: add io_disable to struct cached_dev") Signed-off-by: Coly Li colyli@suse.de Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/md/bcache/sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -180,7 +180,7 @@ SHOW(__bch_cached_dev) var_print(writeback_percent); sysfs_hprint(writeback_rate, wb ? atomic_long_read(&dc->writeback_rate.rate) << 9 : 0); - sysfs_hprint(io_errors, atomic_read(&dc->io_errors)); + sysfs_printf(io_errors, "%i", atomic_read(&dc->io_errors)); sysfs_printf(io_error_limit, "%i", dc->error_limit); sysfs_printf(io_disable, "%i", dc->io_disable); var_print(writeback_rate_update_seconds); @@ -464,7 +464,7 @@ static struct attribute *bch_cached_dev_ &sysfs_writeback_rate_p_term_inverse, &sysfs_writeback_rate_minimum, &sysfs_writeback_rate_debug, - &sysfs_errors, + &sysfs_io_errors, &sysfs_io_error_limit, &sysfs_io_disable, &sysfs_dirty_data,