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authorJeff Layton <jlayton@redhat.com>2016-12-15 08:37:57 -0500
committerIlya Dryomov <idryomov@gmail.com>2017-02-20 12:16:05 +0100
commitc6b0b656ca24ede6657abb4a2cd910fa9c1879ba (patch)
tree1ea5dce4a9aa8a92587524a12d9a72f7f2e9a33a /tools/perf/scripts/python/export-to-postgresql.py
parent30c71233a1d4b5c23ad6652847285bf6b57086e2 (diff)
ceph: clean up unsafe d_parent accesses in build_dentry_path
While we hold a reference to the dentry when build_dentry_path is called, we could end up racing with a rename that changes d_parent. Handle that situation correctly, by using the rcu_read_lock to ensure that the parent dentry and inode stick around long enough to safely check ceph_snap and ceph_ino. Link: http://tracker.ceph.com/issues/18148 Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Yan, Zheng <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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