common/grant_table.c:cache_flush() grabs the rcu lock for the current
domain, but only releases it on error paths.
Note that this is not a security issue, as the preempt count is used
exclusively for assertions at the moment.
Signed-off-by: George Dunlap <george.dun...@citrix.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
---
CC: Ian Jackson <ian.jack...@citrix.com>
CC: Wei Liu <wei.l...@citrix.com>
CC: Andrew Cooper <andrew.coop...@citrix.com>
CC: Jan Beulich <jbeul...@suse.com>
CC: Tim Deegan <t...@xen.org>
CC: Stefano Stabellini <sstabell...@kernel.org>
CC: Konrad Wilk <konrad.w...@oracle.com>
---
xen/common/grant_table.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
index 48c547930c..8346994de6 100644
--- a/xen/common/grant_table.c
+++ b/xen/common/grant_table.c
@@ -3273,6 +3273,7 @@ static int cache_flush(const gnttab_cache_flush_t
*cflush, grant_ref_t *cur_ref)
unmap_domain_page(v);
put_page(page);
+ rcu_unlock_domain(d);
return ret;
}
--
2.15.1
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