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authorOlaf Hering <olaf@aepfle.de>2015-12-15 03:01:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-12-15 06:12:21 +0300
commitb4ed5d1682c6613988c2eb1de55df5ac9988afcc (patch)
treebca8e7647dbaf5c0e9f272b4cfeb3dcd0baa3fb3 /tools/hv/hv_fcopy_daemon.c
parent3cace4a616108539e2730f8dc21a636474395e0f (diff)
downloadlinux-b4ed5d1682c6613988c2eb1de55df5ac9988afcc.tar.xz
tools: hv: report ENOSPC errors in hv_fcopy_daemon
Currently some "Unspecified error 0x80004005" is reported on the Windows side if something fails. Handle the ENOSPC case and return ERROR_DISK_FULL, which allows at least Copy-VMFile to report a meaning full error. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/hv/hv_fcopy_daemon.c')
-rw-r--r--tools/hv/hv_fcopy_daemon.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index 5480e4e424eb..f1d742682317 100644
--- a/tools/hv/hv_fcopy_daemon.c
+++ b/tools/hv/hv_fcopy_daemon.c
@@ -37,12 +37,14 @@
static int target_fd;
static char target_fname[W_MAX_PATH];
+static unsigned long long filesize;
static int hv_start_fcopy(struct hv_start_fcopy *smsg)
{
int error = HV_E_FAIL;
char *q, *p;
+ filesize = 0;
p = (char *)smsg->path_name;
snprintf(target_fname, sizeof(target_fname), "%s/%s",
(char *)smsg->path_name, (char *)smsg->file_name);
@@ -98,14 +100,26 @@ done:
static int hv_copy_data(struct hv_do_fcopy *cpmsg)
{
ssize_t bytes_written;
+ int ret = 0;
bytes_written = pwrite(target_fd, cpmsg->data, cpmsg->size,
cpmsg->offset);
- if (bytes_written != cpmsg->size)
- return HV_E_FAIL;
+ filesize += cpmsg->size;
+ if (bytes_written != cpmsg->size) {
+ switch (errno) {
+ case ENOSPC:
+ ret = HV_ERROR_DISK_FULL;
+ break;
+ default:
+ ret = HV_E_FAIL;
+ break;
+ }
+ syslog(LOG_ERR, "pwrite failed to write %llu bytes: %ld (%s)",
+ filesize, (long)bytes_written, strerror(errno));
+ }
- return 0;
+ return ret;
}
static int hv_copy_finished(void)