Hi!
Is there no way we could implement file copying in user space?
For file copy service user space may be pretty good
But I ( and other Hyper-V sysadmin) see non-Ok ( in political correct
terminalogy) results with hv: balloon: Online
the hot-added memory in user space
Best regards,
On Wed, Jan 08, K. Y. Srinivasan wrote:
+++ b/tools/hv/hv_fcopy_daemon.c
+ len = pread(fcopy_fd, buffer, (4096 * 2), 0);
+
+ if (len = 0) {
+ syslog(LOG_ERR, Read error: %s\n, strerror(errno));
+ continue;
This could flood
] Drivers: hv: Implement the file copy service
On Wed, Jan 08, K. Y. Srinivasan wrote:
+++ b/tools/hv/hv_fcopy_daemon.c
+ len = pread(fcopy_fd, buffer, (4096 * 2), 0);
+
+ if (len = 0) {
+ syslog(LOG_ERR, Read error: %s\n, strerror(errno
We've had this discussion before where you urge me to trust the host...
Problem: This code is racy.
Solution: The host will only send one message at a time.
Now I have to audit the user space code on the host and I don't feel
like doing that so you win.
I wish we had a better way to do IPC.
On Thu, Jan 09, 2014 at 11:09:21PM +0300, Dan Carpenter wrote:
We've had this discussion before where you urge me to trust the host...
Problem: This code is racy.
Solution: The host will only send one message at a time.
Now I have to audit the user space code on the host and I don't feel
Subject: Re: [PATCH 1/1] Drivers: hv: Implement the file copy service
We've had this discussion before where you urge me to trust the host...
I am just implementing the protocol specification given by the host. If I
cannot trust the
specified protocol, I am not sure what else can be done here
...@linuxdriverproject.org
Subject: Re: [PATCH 1/1] Drivers: hv: Implement the file copy service
On Thu, Jan 09, 2014 at 11:09:21PM +0300, Dan Carpenter wrote:
We've had this discussion before where you urge me to trust the host...
Problem: This code is racy.
Solution: The host will only send one message
Implement the file copy service for Linux guests on Hyper-V. This permits the
host to copy a file (over VMBUS) into the guest. This facility is part of
guest integration services supported on the Windows platform.
Here is a link that provides additional details on this functionality:
On Wed, Jan 08, 2014 at 03:48:35PM -0800, K. Y. Srinivasan wrote:
Implement the file copy service for Linux guests on Hyper-V. This permits the
host to copy a file (over VMBUS) into the guest. This facility is part of
guest integration services supported on the Windows platform.
Here is a link
