diff options
| author | sochin.jiang <sochin.jiang@huawei.com> | 2017-06-15 14:47:33 +0800 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-06-26 14:54:46 +0200 |
| commit | 4172a00373b2c81374293becc02b16b7f8c76659 (patch) | |
| tree | fd448d57f39b13a48460c626bc6d3a49e6e7ccca /include/block/blockjob.h | |
| parent | f5a5ca796932d04cb2a1cb9382a55f72795b3e06 (diff) | |
fix: avoid an infinite loop or a dangling pointer problem in img_commit
img_commit could fall into an infinite loop calling run_block_job() if
its blockjob fails on any I/O error, fix this already known problem.
Signed-off-by: sochin.jiang <sochin.jiang@huawei.com>
Message-id: 1497509253-28941-1-git-send-email-sochin.jiang@huawei.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include/block/blockjob.h')
| -rw-r--r-- | include/block/blockjob.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/block/blockjob.h b/include/block/blockjob.h index 09c7c694b5..67c0968fa5 100644 --- a/include/block/blockjob.h +++ b/include/block/blockjob.h @@ -321,6 +321,24 @@ void block_job_iostatus_reset(BlockJob *job); BlockJobTxn *block_job_txn_new(void); /** + * block_job_ref: + * + * Add a reference to BlockJob refcnt, it will be decreased with + * block_job_unref, and then be freed if it comes to be the last + * reference. + */ +void block_job_ref(BlockJob *job); + +/** + * block_job_unref: + * + * Release a reference that was previously acquired with block_job_ref + * or block_job_create. If it's the last reference to the object, it will be + * freed. + */ +void block_job_unref(BlockJob *job); + +/** * block_job_txn_unref: * * Release a reference that was previously acquired with block_job_txn_add_job |