diff options
| author | Wang Shilong <wangsl.fnst@cn.fujitsu.com> | 2013-12-04 21:15:19 +0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-01-28 13:19:52 -0800 |
| commit | 3cb0929ad24c95c5fd8f08eb41a702a65954b4c6 (patch) | |
| tree | 211cab1032216d0cea1ebd12b866225f73fd91dc /fs/btrfs/transaction.c | |
| parent | 5a0f4e2c2b47a755e37dbbb6f691e6504e3147b3 (diff) | |
Btrfs: fix wrong super generation mismatch when scrubbing supers
We came a race condition when scrubbing superblocks, the story is:
In commiting transaction, we will update @last_trans_commited after
writting superblocks, if scrubber start after writting superblocks
and before updating @last_trans_commited, generation mismatch happens!
We fix this by checking @scrub_pause_req, and we won't start a srubber
until commiting transaction is finished.(after btrfs_scrub_continue()
finished.)
Reported-by: Sebastian Ochmann <ochmann@informatik.uni-bonn.de>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
0 files changed, 0 insertions, 0 deletions