From f693fe6ef402bdcf89b3979bf004c4c5bf646724 Mon Sep 17 00:00:00 2001 From: Michael Roth Date: Mon, 19 Oct 2015 16:38:25 -0500 Subject: [PATCH] qga: guest-get-memory-blocks shouldn't fail for unexposed memory blocks Some guests don't expose memory blocks via sysfs at all. This shouldn't be a failure, instead just return an empty list. For other access failures we still report an error. Signed-off-by: Michael Roth --- qga/commands-posix.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index a932809..ff0ba62 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -2213,8 +2213,14 @@ GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) dp = opendir("/sys/devices/system/memory/"); if (!dp) { - error_setg_errno(errp, errno, "Can't open directory" - "\"/sys/devices/system/memory/\"\n"); + /* it's ok if this happens to be a system that doesn't expose + * memory blocks via sysfs, but otherwise we should report + * an error + */ + if (errno != ENOENT) { + error_setg_errno(errp, errno, "Can't open directory" + "\"/sys/devices/system/memory/\"\n"); + } return NULL; } -- 2.7.4