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Stefan Hajnoczi 4a41a2d68a nbd: close socket if connection breaks 
nbd_receive_reply() is called by the event loop whenever data is
available or the socket has been closed by the remote side.

This patch closes the socket when an error occurs to prevent the
nbd_receive_reply() handler from being called indefinitely after the
connection has failed.

Note that we were already correctly returning EIO for pending requests
but leaving the nbd_receive_reply() handler registered resulted in high
CPU consumption and a flood of error messages.

Reuse nbd_teardown_connection() to close the socket.

Reported-by: Zhifeng Cai <bluewindow@h3c.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 		2014-03-14 16:28:28 +01:00
..
Makefile.objs Block patches 2014-02-25 10:50:11 +00:00
backup.c block: Switch BdrvTrackedRequest to byte granularity 2014-01-24 17:40:02 +01:00
blkdebug.c block: Remove bdrv_open_image()'s force_raw option 2014-02-21 21:02:22 +01:00
blkverify.c block: Rewrite the snapshot authorization mechanism for block filters. 2014-03-13 14:23:27 +01:00
bochs.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
cloop.c bdrv: Use "Error" for opening images 2013-09-12 10:12:47 +02:00
commit.c commit: Remove unused check 2013-12-20 16:26:16 +01:00
cow.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
curl.c curl: correctly propagate errors 2014-02-21 21:02:23 +01:00
dmg.c bdrv: Use "Error" for opening images 2013-09-12 10:12:47 +02:00
gluster.c gluster: Remove unused defines and header include 2014-03-05 15:58:32 +01:00
iscsi.c iscsi: Use bs->sg for everything else than disks 2014-03-05 16:58:20 +01:00
linux-aio.c aio: drop io_flush argument 2013-08-19 15:52:19 +02:00
mirror.c block: mirror - remove code cruft that has no function 2014-03-06 11:47:40 +01:00
nbd-client.c nbd: close socket if connection breaks 2014-03-14 16:28:28 +01:00
nbd-client.h nbd: pass export name as init argument 2013-12-16 10:12:20 +01:00
nbd.c nbd: correctly propagate errors 2014-02-21 21:02:22 +01:00
nfs.c block: add native support for NFS 2014-02-09 09:12:38 +01:00
parallels.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
qapi.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
qcow.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
qcow2-cache.c qcow2: Use negated overflow check mask 2013-10-11 16:50:00 +02:00
qcow2-cluster.c qcow2: Check bs->drv in copy_sectors() 2014-03-13 14:23:27 +01:00
qcow2-refcount.c qcow2-refcount: Sanitize refcount table entry 2014-03-13 14:23:27 +01:00
qcow2-snapshot.c block: Don't throw away errno via error_setg 2014-02-14 18:05:38 +01:00
qcow2.c qcow2: Don't write with BDRV_O_INCOMING 2014-03-13 14:42:24 +01:00
qcow2.h qcow2: remove n_start and n_end of qcow2_alloc_cluster_offset() 2014-02-09 09:12:39 +01:00
qed-check.c qed: mark image clean after repair succeeds 2012-08-10 10:25:12 +02:00
qed-cluster.c Use glib memory allocation and free functions 2011-08-20 23:01:08 -05:00
qed-gencb.c Use glib memory allocation and free functions 2011-08-20 23:01:08 -05:00
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: Update image size in bdrv_invalidate_cache() 2014-03-13 14:23:27 +01:00
qed.h block: qed - use QEMU_PACKED for on-disk structures 2013-09-25 20:51:15 +02:00
quorum.c block: Rewrite the snapshot authorization mechanism for block filters. 2014-03-13 14:23:27 +01:00
raw-aio.h raw-posix: add support for write_zeroes on XFS and block devices 2013-12-03 15:26:49 +01:00
raw-posix.c block/raw-posix: Strip protocol prefix on creation 2014-03-13 14:42:25 +01:00
raw-win32.c block/raw-win32: bdrv_parse_filename() for hdev 2014-03-13 14:42:25 +01:00
raw_bsd.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
rbd.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
sheepdog.c block: Make bdrv_file_open() static 2014-02-21 21:02:22 +01:00
snapshot.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
ssh.c bdrv: Use "Error" for creating images 2013-09-12 10:12:48 +02:00
stream.c block: Update BlockLimits when they might have changed 2014-01-24 17:40:01 +01:00
vdi.c vdi: say why an image is bad 2014-02-21 21:02:24 +01:00
vhdx-endian.c block: vhdx - move more endian translations to vhdx-endian.c 2013-11-07 13:58:59 +01:00
vhdx-log.c block/vhdx: Error checking fixes 2014-01-31 22:05:03 +01:00
vhdx.c vhdx: correctly propagate errors 2014-02-21 21:02:23 +01:00
vhdx.h block: Explicitly specify 'unsigned long long' for VHDX 64-bit constants 2014-03-14 16:25:24 +01:00
vmdk.c block/vmdk: do not report file offset for compressed extents 2014-02-28 18:59:07 +01:00
vpc.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
vvfat.c vvfat: correctly propagate errors 2014-02-21 21:02:23 +01:00
win32-aio.c win32-aio: drop win32_aio_flush_cb() 2013-08-22 22:05:04 +02:00