From 7725b8bf129de6887fb680da28775fab5eded914 Mon Sep 17 00:00:00 2001 From: Peter Lieven Date: Mon, 9 Nov 2015 08:09:33 +0100 Subject: block/nfs: add support for setting debug level recent libnfs versions support logging debug messages. Add support for it in qemu through an URL parameter. Example: qemu -cdrom nfs://127.0.0.1/iso/my.iso?debug=2 Signed-off-by: Peter Lieven Reviewed-by: Fam Zheng Message-id: 1447052973-14513-1-git-send-email-pl@kamp.de Signed-off-by: Jeff Cody --- block/nfs.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'block/nfs.c') diff --git a/block/nfs.c b/block/nfs.c index 5eb8c133b9..7220e8991b 100644 --- a/block/nfs.c +++ b/block/nfs.c @@ -36,6 +36,7 @@ #include #define QEMU_NFS_MAX_READAHEAD_SIZE 1048576 +#define QEMU_NFS_MAX_DEBUG_LEVEL 2 typedef struct NFSClient { struct nfs_context *context; @@ -333,6 +334,17 @@ static int64_t nfs_client_open(NFSClient *client, const char *filename, val = QEMU_NFS_MAX_READAHEAD_SIZE; } nfs_set_readahead(client->context, val); +#endif +#ifdef LIBNFS_FEATURE_DEBUG + } else if (!strcmp(qp->p[i].name, "debug")) { + /* limit the maximum debug level to avoid potential flooding + * of our log files. */ + if (val > QEMU_NFS_MAX_DEBUG_LEVEL) { + error_report("NFS Warning: Limiting NFS debug level" + " to %d", QEMU_NFS_MAX_DEBUG_LEVEL); + val = QEMU_NFS_MAX_DEBUG_LEVEL; + } + nfs_set_debug(client->context, val); #endif } else { error_setg(errp, "Unknown NFS parameter name: %s", -- cgit v1.2.1