| commit | 496b318eb65558c1a3a4fe882cb9da6d1dc6493a | |
| author | Laszlo Ersek <lersek@redhat.com> | |
| Fri, 13 May 2011 13:45:40 +0000 (13 09:45 -0400) | ||
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | |
| Fri, 13 May 2011 13:45:40 +0000 (13 09:45 -0400) | ||
| tree | 090f1739245a42ef4c147d36e52c3aca557b4dcd | treesnapshot (tar.gz zip) |
| parent | 5185432277ddf5bd91ad5af29cd1945f25ed10fc | commitdiff |
xen/blkback: fix xenbus_transaction_start() hang caused by double xenbus_transaction_end()
vbd_resize() up_read()'s xs_state.suspend_mutex twice in a row via double
xenbus_transaction_end() calls. The next down_read() in
xenbus_transaction_start() (at eg. the next resize attempt) hangs.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=618317
Acked-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
vbd_resize() up_read()'s xs_state.suspend_mutex twice in a row via double
xenbus_transaction_end() calls. The next down_read() in
xenbus_transaction_start() (at eg. the next resize attempt) hangs.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=618317
Acked-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| drivers/block/xen-blkback/blkback.c | diffblobblamehistory |