peter/qemu - QEMU hacking for Peter

Age	Commit message (Collapse)	Author	Files	Lines
2017-07-17	qed: protect table cache with CoMutex	Paolo Bonzini	1	-2/+2
	This makes the driver thread-safe. The CoMutex is dropped temporarily while accessing the data clusters or the backing file. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20170629132749.997-10-pbonzini@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2017-06-26	qed: Add coroutine_fn to I/O path functions	Kevin Wolf	1	-2/+3
	Now that we stay in coroutine context for the whole request when doing reads or writes, we can add coroutine_fn annotations to many functions that can do I/O or yield directly. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-26	qed: Remove callback from qed_find_cluster()	Kevin Wolf	1	-17/+22
	Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-26	qed: Remove callback from qed_read_l2_table()	Kevin Wolf	1	-63/+31
	Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21	block: explicitly acquire aiocontext in aio callbacks that need it	Paolo Bonzini	1	-0/+2
	Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170213135235.12274-16-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-01-20	block: Clean up includes	Peter Maydell	1	-0/+1
	Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-08-20	Use glib memory allocation and free functions	Anthony Liguori	1	-2/+2
	qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-04-13	qed: Add support for zero clusters	Anthony Liguori	1	-10/+21
	Zero clusters are similar to unallocated clusters except instead of reading their value from a backing file when one is available, the cluster is always read as zero. This implements read support only. At this stage, QED will never write a zero cluster. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17	qed: Table, L2 cache, and cluster functions	Stefan Hajnoczi	1	-0/+154
	This patch adds code to look up data cluster offsets in the image via the L1/L2 tables. The L2 tables are writethrough cached in memory for performance (each read/write requires a lookup so it is essential to cache the tables). With cluster lookup code in place it is possible to implement bdrv_is_allocated() to query the number of contiguous allocated/unallocated clusters. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>