| commit | 4c6fff445d7aa753957856278d4d93bcad6e2c14 | [log] [tgz] |
|---|---|---|
| author | Mikulas Patocka <mpatocka@redhat.com> | Fri Oct 16 23:18:16 2009 +0100 |
| committer | Alasdair G Kergon <agk@redhat.com> | Fri Oct 16 23:18:16 2009 +0100 |
| tree | 56ac3d262699fe5a42f76fe9f992277a6a7a2934 | |
| parent | 0e8c4e4e3ebb15756ddc4170a88149a2cd323cfe [diff] |
dm snapshot: lock snapshot while supplying status This patch locks the snapshot when returning status. It fixes a race when it could return an invalid number of free chunks if someone was simultaneously modifying it. Cc: stable@kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>