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Diffstat (limited to 'tools/hv/hv_fcopy_daemon.c')
-rw-r--r--tools/hv/hv_fcopy_daemon.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index 5480e4e424eb..fdc9ca4c0356 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)
@@ -165,7 +179,7 @@ int main(int argc, char *argv[])
}
openlog("HV_FCOPY", 0, LOG_USER);
- syslog(LOG_INFO, "HV_FCOPY starting; pid is:%d", getpid());
+ syslog(LOG_INFO, "starting; pid is:%d", getpid());
fcopy_fd = open("/dev/vmbus/hv_fcopy", O_RDWR);
@@ -201,7 +215,7 @@ int main(int argc, char *argv[])
}
kernel_modver = *(__u32 *)buffer;
in_handshake = 0;
- syslog(LOG_INFO, "HV_FCOPY: kernel module version: %d",
+ syslog(LOG_INFO, "kernel module version: %d",
kernel_modver);
continue;
}