Josh Durgin dc7588c1eb rbd: add an asynchronous flush ... The existing bdrv_co_flush_to_disk implementation uses rbd_flush(), which is sychronous and causes the main qemu thread to block until it is complete. This results in unresponsiveness and extra latency for the guest. Fix this by using an asynchronous version of flush. This was added to librbd with a special #define to indicate its presence, since it will be backported to stable versions. Thus, there is no need to check the version of librbd. Implement this as bdrv_aio_flush, since it matches other aio functions in the rbd block driver, and leave out bdrv_co_flush_to_disk when the asynchronous version is available. Reported-by: Oliver Francke <oliver@filoo.de> Signed-off-by: Josh Durgin <josh.durgin@inktank.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>		2013-04-15 10:18:05 +02:00
..
blkdebug.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
blkverify.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
bochs.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
cloop.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
commit.c	block: fix null-pointer bug on error case in block commit	2013-01-17 10:51:11 +01:00
cow.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
curl.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
dmg.c	block: Make find_image_format safe with NULL filename	2013-03-22 17:51:32 +01:00
gluster.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
iscsi.c	hw: move headers to include/	2013-04-08 18:13:10 +02:00
linux-aio.c	misc: move include files to include/qemu/	2012-12-19 08:32:39 +01:00
Makefile.objs	block: Add support for Secure Shell (ssh) block device.	2013-04-15 10:18:05 +02:00
mirror.c	mirror: do nothing on zero-sized disk	2013-01-25 18:18:35 +01:00
nbd.c	oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()	2013-04-02 11:47:37 -04:00
parallels.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
qcow2-cache.c	block: move include files to include/block/	2012-12-19 08:31:31 +01:00
qcow2-cluster.c	qcow2: Gather clusters in a looping loop	2013-03-28 11:52:44 +01:00
qcow2-refcount.c	qcow2: Fix L1 write error handling in qcow2_update_snapshot_refcount	2013-04-05 18:58:05 +02:00
qcow2-snapshot.c	qcow2: flush in qcow2_update_snapshot_refcount()	2013-03-15 16:07:50 +01:00
qcow2.c	block: Introduce bdrv_pwritev() for qcow2_save_vmstate	2013-04-15 08:26:18 +02:00
qcow2.h	aes: move aes.h from include/block to include/qemu	2013-04-13 13:51:57 +02:00
qcow.c	aes: move aes.h from include/block to include/qemu	2013-04-13 13:51:57 +02:00
qed-check.c	qed: mark image clean after repair succeeds	2012-08-10 10:25:12 +02:00
qed-cluster.c
qed-gencb.c
qed-l2-cache.c	qed: do not evict in-use L2 table cache entries	2012-03-12 15:14:06 +01:00
qed-table.c	misc: move include files to include/qemu/	2012-12-19 08:32:39 +01:00
qed.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
qed.h	block: move include files to include/block/	2012-12-19 08:31:31 +01:00
raw-aio.h	block: make discard asynchronous	2013-01-15 10:03:47 +01:00
raw-posix.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
raw-win32.c	block: Add options QDict to bdrv_file_open() prototypes (fix MinGW build)	2013-03-25 09:53:04 +01:00
raw.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
rbd.c	rbd: add an asynchronous flush	2013-04-15 10:18:05 +02:00
sheepdog.c	block: Introduce bdrv_writev_vmstate	2013-04-15 08:26:18 +02:00
ssh.c	block: ssh: Use libssh2_sftp_fsync (if supported by libssh2) to flush to disk.	2013-04-15 10:18:05 +02:00
stream.c	block: move include files to include/block/	2012-12-19 08:31:31 +01:00
vdi.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
vmdk.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
vpc.c	block: Add options QDict to .bdrv_open()	2013-03-15 16:07:49 +01:00
vvfat.c	block: Add options QDict to bdrv_file_open() prototypes	2013-03-22 17:51:31 +01:00
win32-aio.c	win32-aio: use iov utility functions instead of open-coding them	2013-01-18 09:57:51 +01:00