040dab9939
When doing recv and rollback, dsl_dataset_clone_swap_sync_impl will be called to swap out the ds_objset and do dmu_objset_evict on the old one. However, currently zv->zv_objset will not be swapped out accordingly, so if anyone currently holds a fd on the zvol, we risk hitting a use-after-free. We fix this by introducing the suspend and resume mechanism of zsb to zv. Before recv or rollback, we use zvol_suspend to block all access to zv_objset and shut it down. After the recv or rollback, we use zvol_resume to swap in zv_objset with the new ds_objset and unblock the access. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Chunwei Chen <david.chen@osnexus.com> Closes #4866 Closes #5609 |
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| .. | ||
| linux | ||
| sys | ||
| Makefile.am | ||
| libnvpair.h | ||
| libuutil.h | ||
| libuutil_common.h | ||
| libuutil_impl.h | ||
| libzfs.h | ||
| libzfs_core.h | ||
| libzfs_impl.h | ||
| zfeature_common.h | ||
| zfs_comutil.h | ||
| zfs_deleg.h | ||
| zfs_fletcher.h | ||
| zfs_namecheck.h | ||
| zfs_prop.h | ||
| zpios-ctl.h | ||
| zpios-internal.h | ||