# HG changeset patch
# User Olaf Hering <olaf@xxxxxxxxx>
# Date 1317653597 -7200
# Node ID ee4c4c7699e0de2b6bddce1e816d35f36ffb0470
# Parent 21b7c9a6545ac1ec9d91fce83d46aab0b5808b05
xenpaging: use PERROR to print errno
Also catch lseek() errors in file_op().
Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
diff -r 21b7c9a6545a -r ee4c4c7699e0 tools/xenpaging/file_ops.c
--- a/tools/xenpaging/file_ops.c
+++ b/tools/xenpaging/file_ops.c
@@ -37,6 +37,11 @@ static int file_op(int fd, void *page, i
int ret;
seek_ret = lseek(fd, i << PAGE_SHIFT, SEEK_SET);
+ if (seek_ret == -1)
+ {
+ ret = -errno;
+ goto err;
+ }
total = 0;
while ( total < PAGE_SIZE )
diff -r 21b7c9a6545a -r ee4c4c7699e0 tools/xenpaging/xenpaging.c
--- a/tools/xenpaging/xenpaging.c
+++ b/tools/xenpaging/xenpaging.c
@@ -90,7 +90,7 @@ static int xenpaging_wait_for_event_or_t
if (errno == EINTR)
return 0;
- ERROR("Poll exited with an error");
+ PERROR("Poll exited with an error");
return -errno;
}
@@ -121,7 +121,7 @@ static int xenpaging_wait_for_event_or_t
port = xc_evtchn_pending(xce);
if ( port == -1 )
{
- ERROR("Failed to read port from event channel");
+ PERROR("Failed to read port from event channel");
rc = -1;
goto err;
}
@@ -129,7 +129,7 @@ static int xenpaging_wait_for_event_or_t
rc = xc_evtchn_unmask(xce, port);
if ( rc < 0 )
{
- ERROR("Failed to unmask event channel port");
+ PERROR("Failed to unmask event channel port");
}
}
err:
@@ -185,7 +185,7 @@ static xenpaging_t *xenpaging_init(domid
paging->xs_handle = xs_open(0);
if ( paging->xs_handle == NULL )
{
- ERROR("Error initialising xenstore connection");
+ PERROR("Error initialising xenstore connection");
goto err;
}
@@ -193,7 +193,7 @@ static xenpaging_t *xenpaging_init(domid
snprintf(watch_token, sizeof(watch_token), "%u", domain_id);
if ( xs_watch(paging->xs_handle, "@releaseDomain", watch_token) == false )
{
- ERROR("Could not bind to shutdown watch\n");
+ PERROR("Could not bind to shutdown watch\n");
goto err;
}
@@ -214,7 +214,7 @@ static xenpaging_t *xenpaging_init(domid
paging->mem_event.shared_page = init_page();
if ( paging->mem_event.shared_page == NULL )
{
- ERROR("Error initialising shared page");
+ PERROR("Error initialising shared page");
goto err;
}
@@ -222,7 +222,7 @@ static xenpaging_t *xenpaging_init(domid
paging->mem_event.ring_page = init_page();
if ( paging->mem_event.ring_page == NULL )
{
- ERROR("Error initialising ring page");
+ PERROR("Error initialising ring page");
goto err;
}
@@ -240,13 +240,13 @@ static xenpaging_t *xenpaging_init(domid
{
switch ( errno ) {
case EBUSY:
- ERROR("xenpaging is (or was) active on this domain");
+ PERROR("xenpaging is (or was) active on this domain");
break;
case ENODEV:
- ERROR("EPT not supported for this guest");
+ PERROR("EPT not supported for this guest");
break;
default:
- ERROR("Error initialising shared page: %s", strerror(errno));
+ PERROR("Error initialising shared page: %s", strerror(errno));
break;
}
goto err;
@@ -256,7 +256,7 @@ static xenpaging_t *xenpaging_init(domid
paging->mem_event.xce_handle = xc_evtchn_open(NULL, 0);
if ( paging->mem_event.xce_handle == NULL )
{
- ERROR("Failed to open event channel");
+ PERROR("Failed to open event channel");
goto err;
}
@@ -266,7 +266,7 @@ static xenpaging_t *xenpaging_init(domid
paging->mem_event.shared_page->port);
if ( rc < 0 )
{
- ERROR("Failed to bind event channel");
+ PERROR("Failed to bind event channel");
goto err;
}
@@ -276,7 +276,7 @@ static xenpaging_t *xenpaging_init(domid
paging->domain_info = malloc(sizeof(xc_domaininfo_t));
if ( paging->domain_info == NULL )
{
- ERROR("Error allocating memory for domain info");
+ PERROR("Error allocating memory for domain info");
goto err;
}
@@ -284,7 +284,7 @@ static xenpaging_t *xenpaging_init(domid
paging->domain_info);
if ( rc != 1 )
{
- ERROR("Error getting domain info");
+ PERROR("Error getting domain info");
goto err;
}
@@ -292,7 +292,7 @@ static xenpaging_t *xenpaging_init(domid
paging->bitmap = bitmap_alloc(paging->domain_info->max_pages);
if ( !paging->bitmap )
{
- ERROR("Error allocating bitmap");
+ PERROR("Error allocating bitmap");
goto err;
}
DPRINTF("max_pages = %"PRIx64"\n", paging->domain_info->max_pages);
@@ -308,7 +308,7 @@ static xenpaging_t *xenpaging_init(domid
rc = policy_init(paging);
if ( rc != 0 )
{
- ERROR("Error initialising policy");
+ PERROR("Error initialising policy");
goto err;
}
@@ -355,14 +355,14 @@ static int xenpaging_teardown(xenpaging_
rc = xc_mem_paging_disable(xch, paging->mem_event.domain_id);
if ( rc != 0 )
{
- ERROR("Error tearing down domain paging in xen");
+ PERROR("Error tearing down domain paging in xen");
}
/* Unbind VIRQ */
rc = xc_evtchn_unbind(paging->mem_event.xce_handle,
paging->mem_event.port);
if ( rc != 0 )
{
- ERROR("Error unbinding event port");
+ PERROR("Error unbinding event port");
}
paging->mem_event.port = -1;
@@ -370,7 +370,7 @@ static int xenpaging_teardown(xenpaging_
rc = xc_evtchn_close(paging->mem_event.xce_handle);
if ( rc != 0 )
{
- ERROR("Error closing event channel");
+ PERROR("Error closing event channel");
}
paging->mem_event.xce_handle = NULL;
@@ -381,7 +381,7 @@ static int xenpaging_teardown(xenpaging_
rc = xc_interface_close(xch);
if ( rc != 0 )
{
- ERROR("Error closing connection to xen");
+ PERROR("Error closing connection to xen");
}
return 0;
@@ -441,7 +441,7 @@ static int xenpaging_evict_page(xenpagin
PROT_READ | PROT_WRITE, &gfn, 1);
if ( page == NULL )
{
- ERROR("Error mapping page");
+ PERROR("Error mapping page");
goto out;
}
@@ -449,8 +449,8 @@ static int xenpaging_evict_page(xenpagin
ret = write_page(fd, page, i);
if ( ret != 0 )
{
+ PERROR("Error copying page");
munmap(page, PAGE_SIZE);
- ERROR("Error copying page");
goto out;
}
@@ -464,7 +464,7 @@ static int xenpaging_evict_page(xenpagin
victim->gfn);
if ( ret != 0 )
{
- ERROR("Error evicting page");
+ PERROR("Error evicting page");
goto out;
}
@@ -520,7 +520,7 @@ static int xenpaging_populate_page(xenpa
sleep(1);
continue;
}
- ERROR("Error preparing for page in");
+ PERROR("Error preparing for page in");
goto out_map;
}
}
@@ -532,7 +532,7 @@ static int xenpaging_populate_page(xenpa
PROT_READ | PROT_WRITE, &gfn, 1);
if ( page == NULL )
{
- ERROR("Error mapping page: page is null");
+ PERROR("Error mapping page: page is null");
goto out_map;
}
@@ -540,7 +540,7 @@ static int xenpaging_populate_page(xenpa
ret = read_page(fd, page, i);
if ( ret != 0 )
{
- ERROR("Error reading page");
+ PERROR("Error reading page");
goto out;
}
@@ -579,7 +579,7 @@ static int evict_victim(xenpaging_t *pag
{
if ( j++ % 1000 == 0 )
if ( xenpaging_mem_paging_flush_ioemu_cache(paging) )
- ERROR("Error flushing ioemu cache");
+ PERROR("Error flushing ioemu cache");
}
}
while ( ret );
@@ -670,7 +670,7 @@ int main(int argc, char *argv[])
rc = xenpaging_wait_for_event_or_timeout(paging);
if ( rc < 0 )
{
- ERROR("Error getting event");
+ PERROR("Error getting event");
goto out;
}
else if ( rc != 0 )
@@ -710,7 +710,7 @@ int main(int argc, char *argv[])
rc = xenpaging_populate_page(paging, req.gfn, fd, i);
if ( rc != 0 )
{
- ERROR("Error populating page");
+ PERROR("Error populating page");
goto out;
}
}
@@ -723,7 +723,7 @@ int main(int argc, char *argv[])
rc = xenpaging_resume_page(paging, &rsp, 1);
if ( rc != 0 )
{
- ERROR("Error resuming page");
+ PERROR("Error resuming page");
goto out;
}
@@ -752,7 +752,7 @@ int main(int argc, char *argv[])
rc = xenpaging_resume_page(paging, &rsp, 0);
if ( rc != 0 )
{
- ERROR("Error resuming");
+ PERROR("Error resuming");
goto out;
}
}
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
Home