Commit 7725b8bf authored by Peter Lieven's avatar Peter Lieven Committed by Jeff Cody
Browse files

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: default avatarPeter Lieven <pl@kamp.de>
Reviewed-by: default avatarFam Zheng <famz@redhat.com>
Message-id: 1447052973-14513-1-git-send-email-pl@kamp.de
Signed-off-by: default avatarJeff Cody <jcody@redhat.com>
parent 071608b5

block/nfs.c

+12 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ 
#include <nfsc/libnfs.h>



#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",